Java之缩略图工具Thumbnailator
This commit is contained in:
sxyx2008
@@ -26,7 +26,7 @@
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<systemPath>${project.basedir}/src/main/webapp/WEB-INF/lib/xxx.jar</systemPath>
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</dependency>
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-->
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<!-- 读写二维码 -->
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<dependency>
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@@ -44,8 +44,8 @@
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<artifactId>qrgen</artifactId>
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<version>1.3</version>
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</dependency>
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<!-- Java缩略图生成类库 -->
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<dependency>
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<groupId>net.coobird</groupId>
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@@ -53,7 +53,30 @@
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<version>0.4.7</version>
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</dependency>
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<!-- 时间类库 -->
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<dependency>
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<groupId>joda-time</groupId>
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<artifactId>joda-time</artifactId>
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<version>2.4</version>
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</dependency>
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<!-- zip4j zip压缩类库 -->
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<dependency>
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<groupId>net.lingala.zip4j</groupId>
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<artifactId>zip4j</artifactId>
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<version>1.3.2</version>
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</dependency>
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<dependency>
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<groupId>org.apache.commons</groupId>
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<artifactId>commons-lang3</artifactId>
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<version>3.3.2</version>
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</dependency>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.11</version>
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</dependency>
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</dependencies>
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</project>
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@@ -3,7 +3,7 @@ package org.javase.tutorials;
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/**
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* 二分法查找
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* @author welcome
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* @author 冯靖
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*
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*/
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public class BinarySearch {
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@@ -2,7 +2,7 @@ package org.javase.tutorials;
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/**
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* 交换两个数的值,不借助于第三个数
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* @author welcome
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* @author 冯靖
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*
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*/
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public class SwapVar {
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@@ -0,0 +1,292 @@
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package org.javase.tutorials.jodatime;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.Locale;
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import org.joda.time.DateTime;
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import org.joda.time.DateTimeConstants;
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import org.joda.time.DateTimeZone;
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import org.joda.time.Duration;
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import org.joda.time.Interval;
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import org.joda.time.LocalDate;
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import org.joda.time.LocalTime;
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import org.joda.time.Period;
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import org.joda.time.PeriodType;
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/**
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* joda-time
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* @author 冯靖
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*
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*/
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public class Jodatime {
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/**
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* @param args
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*/
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public static void main(String[] args) {
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getTime();
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getTimeInfo();
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convertJDK();
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date();
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}
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private static void getTime(){
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//方法一：取系统点间
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DateTime dt1 = new DateTime();
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print("方法一：取系统点间",dt1);
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//方法二：通过java.util.Date对象生成
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DateTime dt2 = new DateTime(new Date());
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print("方法二：通过java.util.Date对象生成",dt2);
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//方法三：指定年月日点分秒生成(参数依次是：年,月,日,时,分,秒,毫秒)
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DateTime dt3 = new DateTime(2012, 5, 20, 13, 14, 0, 0);
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print("方法三：指定年月日点分秒生成(参数依次是：年,月,日,时,分,秒,毫秒)",dt3);
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//方法四：ISO8601形式生成
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DateTime dt4 = new DateTime("2012-05-20");
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print("方法四：ISO8601形式生成",dt4);
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DateTime dt5 = new DateTime("2012-05-20T13:14:00");
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print("方法四：ISO8601形式生成",dt5);
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//只需要年月日的时候
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LocalDate localDate = new LocalDate(2009, 9, 6);// September 6, 2009
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System.out.println(localDate.toString("YYYY-MM-dd"));
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//只需要时分秒毫秒的时候
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LocalTime localTime = new LocalTime(13, 30, 26, 0);// 1:30:26PM
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System.out.println(localTime.toString("hh:mm:ss.SSSa"));
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}
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private static void getTimeInfo(){
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System.out.println("-------------获取当前时间-----------------");
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String weekStr="";
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DateTime dt = new DateTime();
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//年
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int year = dt.getYear();
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//月
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int month = dt.getMonthOfYear();
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//日
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int day = dt.getDayOfMonth();
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//星期
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int week = dt.getDayOfWeek();
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//点
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int hour = dt.getHourOfDay();
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//分
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int min = dt.getMinuteOfHour();
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//秒
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int sec = dt.getSecondOfMinute();
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//毫秒
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int msec = dt.getMillisOfSecond();
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//星期
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switch(week) {
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case DateTimeConstants.SUNDAY:
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weekStr = "星期日";
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System.out.println(weekStr);
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break;
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case DateTimeConstants.MONDAY:
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weekStr = "星期一";
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System.out.println(weekStr);
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break;
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case DateTimeConstants.TUESDAY:
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weekStr = "星期二";
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System.out.println(weekStr);
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break;
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case DateTimeConstants.WEDNESDAY:
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weekStr = "星期三";
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System.out.println(weekStr);
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break;
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case DateTimeConstants.THURSDAY:
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weekStr = "星期四";
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System.out.println(weekStr);
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break;
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case DateTimeConstants.FRIDAY:
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weekStr = "星期五";
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System.out.println(weekStr);
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break;
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case DateTimeConstants.SATURDAY:
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weekStr = "星期六";
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System.out.println(weekStr);
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break;
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}
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System.out.println(year + "/" + month + "/" + day + " " + hour + ":" + min + ":" + sec + ":" + msec + " " + weekStr);
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}
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/**
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* 与jdk的时间转换
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*/
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public static void convertJDK(){
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System.out.println("-------------与jdk的时间转换-----------------");
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DateTime dt = new DateTime();
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//转换成java.util.Date对象
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Date d1 = new Date(dt.getMillis());
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Date d2 = dt.toDate();
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//转换成java.util.Calendar对象
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Calendar c1 = Calendar.getInstance();
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c1.setTimeInMillis(dt.getMillis());
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Calendar c2 = dt.toCalendar(Locale.getDefault());
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}
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/**
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* 日期推算
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*/
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public static void date(){
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System.out.println("-------------日期推算-----------------");
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DateTime dt = new DateTime();
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print("今天",dt);
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//昨天
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DateTime yesterday = dt.minusDays(1);
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print("昨天",yesterday);
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//明天
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DateTime tomorrow = dt.plusDays(1);
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print("明天",tomorrow);
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//1个月前
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DateTime before1month = dt.minusMonths(1);
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print("1个月前",before1month);
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//3个月后
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DateTime after3month = dt.plusMonths(3);
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print("3个月后",after3month);
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//2年前
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DateTime before2year = dt.minusYears(2);
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print("2年前",before2year);
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//5年后
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DateTime after5year = dt.plusYears(5);
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print("5年后",after5year);
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//特殊日期处理
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//月末日期
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DateTime lastday = dt.dayOfMonth().withMaximumValue();
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print("月末日期",lastday);
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//90天后那周的周一
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DateTime firstday = dt.plusDays(90).dayOfWeek().withMinimumValue();
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print("90天后那周的周一",firstday);
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//时区
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System.out.println("-------------时区-----------------");
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//默认设置为日本时间
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DateTimeZone.setDefault(DateTimeZone.forID("Asia/Tokyo"));
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DateTime dt1 = new DateTime();
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print("默认设置为日本时间",dt1);
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//伦敦时间
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DateTime dt2 = new DateTime(DateTimeZone.forID("Europe/London"));
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print("伦敦时间",dt2);
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//计算区间
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System.out.println("-------------计算区间-----------------");
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DateTime begin = new DateTime("2012-02-01");
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DateTime end = new DateTime("2012-05-01");
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//计算区间毫秒数
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Duration d = new Duration(begin, end);
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long time = d.getMillis();
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System.out.println("计算区间毫秒数:"+time);
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//计算区间天数
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Period p = new Period(begin, end, PeriodType.days());
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int days = p.getDays();
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System.out.println("计算区间天数:"+days);
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//计算特定日期是否在该区间内
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Interval i = new Interval(begin, end);
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boolean contained = i.contains(new DateTime("2012-03-01"));
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//日期比较
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System.out.println("-------------日期比较-----------------");
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DateTime d1 = new DateTime("2012-02-01");
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DateTime d2 = new DateTime("2012-05-01");
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//和系统时间比
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boolean b1 = d1.isAfterNow();//将来 以后
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System.out.println("["+b1+"]"+d1.toString("yyyy-MM-dd")+"在"+dt.toString("yyyy-MM-dd")+"之前");
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boolean b2 = d1.isBeforeNow();//以前 过去
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System.out.println("["+b2+"]"+d1.toString("yyyy-MM-dd")+"在"+dt.toString("yyyy-MM-dd")+"之前");
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boolean b3 = d1.isEqualNow();//与现在时间相同
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System.out.println("["+b3+"]"+d1.toString("yyyy-MM-dd")+"与"+dt.toString("yyyy-MM-dd")+"相同");
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//和其他日期比
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boolean f1 = d1.isAfter(d2);
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boolean f2 = d1.isBefore(d2);
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boolean f3 = d1.isEqual(d2);
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//格式化输出
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System.out.println("-------------格式化输出-----------------");
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DateTime dateTime = new DateTime();
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String s1 = dateTime.toString("yyyy/MM/dd hh:mm:ss.SSSa");
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String s2 = dateTime.toString("yyyy-MM-dd HH:mm:ss");
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String s3 = dateTime.toString("EEEE dd MMMM, yyyy HH:mm:ssa");
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String s4 = dateTime.toString("yyyy/MM/dd HH:mm ZZZZ");
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String s5 = dateTime.toString("yyyy/MM/dd HH:mm Z");
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System.out.println(s1);
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System.out.println(s2);
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System.out.println(s3);
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System.out.println(s4);
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System.out.println(s5);
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}
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private static void print(String tag,DateTime dateTime){
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System.out.println(tag + ":" + dateTime.toString("yyyy-MM-dd HH:mm:ss"));
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}
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}
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@@ -1,10 +1,22 @@
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package org.javase.tutorials.qrcode;
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import java.awt.image.BufferedImage;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.OutputStream;
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import javax.imageio.ImageIO;
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import com.google.zxing.BinaryBitmap;
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import com.google.zxing.LuminanceSource;
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import com.google.zxing.Result;
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import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
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import com.google.zxing.common.HybridBinarizer;
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import com.google.zxing.qrcode.QRCodeReader;
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import net.glxn.qrgen.QRCode;
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import net.glxn.qrgen.image.ImageType;
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@@ -12,7 +24,7 @@ import net.glxn.qrgen.image.ImageType;
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/**
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* 使用qrgen生成二维码
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*
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* @author welcome
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* @author 冯靖
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*
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*/
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public class QRcode {
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@@ -22,9 +34,54 @@ public class QRcode {
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*/
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public static void main(String[] args) throws Exception{
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ByteArrayOutputStream out = QRCode.from("雪山飞鹄").withCharset("utf-8").withSize(480, 320).to(ImageType.PNG).stream();
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File file = new File("target","qrcode.png");
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String content = "http://aimeizi.net";
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String charset = "utf-8";
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int width = 320;
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int height = 320;
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generateCode(content,charset,width,height,file);
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readCode(file);
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}
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/**
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* 读取二维码
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* @param file 二维码源
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* @throws Exception
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*/
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private static void readCode(File file) throws Exception{
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BufferedImage encodedBufferedImage = ImageIO.read(file) ;
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LuminanceSource source = new BufferedImageLuminanceSource(encodedBufferedImage);
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Result result = new QRCodeReader().decode(new BinaryBitmap(new HybridBinarizer(source)));
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System.out.println(result.getText());
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}
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OutputStream outStream = new FileOutputStream(new File("target","qrcode.png"));
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/**
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* 生成二维码
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* @param content 内容
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* @param charset 字符编码
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* @param width 宽
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* @param height 高
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* @param target 生成后写入路径
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* @throws FileNotFoundException
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* @throws IOException
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*/
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private static void generateCode(String content,String charset,int width,int height,File target) throws FileNotFoundException,IOException {
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ByteArrayOutputStream out = QRCode.from(content).withCharset(charset).withSize(width, height).to(ImageType.PNG).stream();
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OutputStream outStream = new FileOutputStream(target);
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outStream.write(out.toByteArray());
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@@ -4,6 +4,8 @@ import java.util.Arrays;
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/**
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* 排序算法接口
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* @author 冯靖
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*
|
||||
*/
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public interface Sort {
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@@ -6,7 +6,9 @@ import org.javase.tutorials.sort.Sort.SortUtil;
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import org.javase.tutorials.sort.Sort.Sorts;
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/**
|
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* 冒择入希快归堆：常用排序算法
|
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* 常用排序算法
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* @author 冯靖
|
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*
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*/
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public class SortTest {
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+216
-6
@@ -1,17 +1,227 @@
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package org.javase.tutorials.thumbnailator;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.OutputStream;
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import javax.imageio.ImageIO;
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import net.coobird.thumbnailator.Thumbnails;
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import net.coobird.thumbnailator.geometry.Positions;
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import org.junit.Test;
|
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|
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/**
|
||||
* Java缩略图生成类库
|
||||
* @see https://code.google.com/p/thumbnailator/wiki/Examples
|
||||
* @author 冯靖
|
||||
*
|
||||
*/
|
||||
/**
|
||||
* @author welcome
|
||||
*
|
||||
*/
|
||||
public class Thumbnailator {
|
||||
|
||||
/**
|
||||
* @param args
|
||||
*/
|
||||
public static void main(String[] args) {
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* 指定大小进行缩放
|
||||
*/
|
||||
@Test
|
||||
public void example1() throws Exception{
|
||||
//size(宽度, 高度)
|
||||
/*
|
||||
* 若图片横比200小，高比300小，不变
|
||||
* 若图片横比200小，高比300大，高缩小到300，图片比例不变
|
||||
* 若图片横比200大，高比300小，横缩小到200，图片比例不变
|
||||
* 若图片横比200大，高比300大，图片按比例缩小，横为200或高为300
|
||||
*/
|
||||
Thumbnails.of("src/main/resources/example.jpg").size(200, 300).toFile("src/main/resources/200x300.jpg");
|
||||
Thumbnails.of("src/main/resources/example.jpg").size(2560, 2048).toFile("src/main/resources/2560x2048.jpg");
|
||||
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* 按照比例进行缩放
|
||||
*/
|
||||
@Test
|
||||
public void example2() throws Exception{
|
||||
//scale(比例)
|
||||
Thumbnails.of("src/main/resources/example.jpg")
|
||||
.scale(0.25f)
|
||||
//.outputQuality(0.8)
|
||||
.toFile("src/main/resources/25%.jpg");
|
||||
|
||||
Thumbnails.of("src/main/resources/example.jpg")
|
||||
.scale(1.10f)
|
||||
//.outputQuality(0.8)
|
||||
.toFile("src/main/resources/110%.jpg");
|
||||
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* 不按照比例，指定大小进行缩放
|
||||
*/
|
||||
@Test
|
||||
public void example3() throws Exception{
|
||||
//keepAspectRatio(false) 默认是按照比例缩放的
|
||||
Thumbnails.of("src/main/resources/example.jpg")
|
||||
.size(200, 200)
|
||||
.keepAspectRatio(false)
|
||||
.toFile("src/main/resources/200x200.jpg");
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* 旋转
|
||||
*/
|
||||
@Test
|
||||
public void example4() throws Exception{
|
||||
//rotate(角度),正数：顺时针 负数：逆时针
|
||||
Thumbnails.of("src/main/resources/example.jpg")
|
||||
.size(1280, 1024)
|
||||
.rotate(90)
|
||||
.toFile("src/main/resources/rotate+90.jpg");
|
||||
|
||||
Thumbnails.of("src/main/resources/example.jpg")
|
||||
.size(1280, 1024)
|
||||
.rotate(-90)
|
||||
.toFile("src/main/resources/rotate-90.jpg");
|
||||
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* 水印
|
||||
*/
|
||||
@Test
|
||||
public void example5() throws Exception{
|
||||
//watermark(位置，水印图，透明度)
|
||||
|
||||
//左上角
|
||||
Thumbnails.of("src/main/resources/example.jpg")
|
||||
.size(1280, 1024)
|
||||
.watermark(Positions.TOP_LEFT, ImageIO.read(new File("src/main/resources/watermark.png")), 0.5f)
|
||||
.outputQuality(0.8f)
|
||||
.toFile("src/main/resources/a380_watermark_top_left.jpg");
|
||||
|
||||
//左下角
|
||||
Thumbnails.of("src/main/resources/example.jpg")
|
||||
.size(1280, 1024)
|
||||
.watermark(Positions.BOTTOM_LEFT, ImageIO.read(new File("src/main/resources/watermark.png")), 0.5f)
|
||||
.outputQuality(0.8f)
|
||||
.toFile("src/main/resources/a380_watermark_bottom_left.jpg");
|
||||
|
||||
|
||||
//右上角
|
||||
Thumbnails.of("src/main/resources/example.jpg")
|
||||
.size(1280, 1024)
|
||||
.watermark(Positions.TOP_RIGHT, ImageIO.read(new File("src/main/resources/watermark.png")), 0.5f)
|
||||
.outputQuality(0.8f)
|
||||
.toFile("src/main/resources/a380_watermark_top_right.jpg");
|
||||
|
||||
|
||||
//右下角
|
||||
Thumbnails.of("src/main/resources/example.jpg")
|
||||
.size(1280, 1024)
|
||||
.watermark(Positions.BOTTOM_RIGHT, ImageIO.read(new File("src/main/resources/watermark.png")), 0.5f)
|
||||
.outputQuality(0.8f)
|
||||
.toFile("src/main/resources/a380_watermark_bottom_right.jpg");
|
||||
|
||||
//局中
|
||||
Thumbnails.of("src/main/resources/example.jpg")
|
||||
.size(1280, 1024)
|
||||
.watermark(Positions.CENTER, ImageIO.read(new File("src/main/resources/watermark.png")), 0.5f)
|
||||
.outputQuality(0.8f)
|
||||
.toFile("src/main/resources/a380_watermark_center.jpg");
|
||||
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* 裁剪
|
||||
*/
|
||||
@Test
|
||||
public void example6() throws Exception{
|
||||
//sourceRegion()
|
||||
//图片中心400*400的区域
|
||||
Thumbnails.of("src/main/resources/example.jpg")
|
||||
.sourceRegion(Positions.CENTER, 400,400)
|
||||
.size(200, 200)
|
||||
.keepAspectRatio(false)
|
||||
.toFile("src/main/resources/a380_region_center.jpg");
|
||||
|
||||
//图片右下400*400的区域
|
||||
Thumbnails.of("src/main/resources/example.jpg")
|
||||
.sourceRegion(Positions.BOTTOM_RIGHT, 400,400)
|
||||
.size(200, 200)
|
||||
.keepAspectRatio(false)
|
||||
.toFile("src/main/resources/a380_region_bootom_right.jpg");
|
||||
|
||||
//指定坐标
|
||||
Thumbnails.of("src/main/resources/example.jpg")
|
||||
.sourceRegion(300, 250, 260, 260)
|
||||
.size(200, 200)
|
||||
.keepAspectRatio(false)
|
||||
.toFile("src/main/resources/a380_region_coord.jpg");
|
||||
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* 转化图像格式
|
||||
*/
|
||||
@Test
|
||||
public void example7() throws Exception{
|
||||
//outputFormat(图像格式)
|
||||
Thumbnails.of("src/main/resources/example.jpg")
|
||||
.size(1280, 1024)
|
||||
.outputFormat("png")
|
||||
.toFile("src/main/resources/a380_1280x1024.png");
|
||||
|
||||
Thumbnails.of("src/main/resources/example.jpg")
|
||||
.size(1280, 1024)
|
||||
.outputFormat("gif")
|
||||
.toFile("src/main/resources/a380_1280x1024.gif");
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* 输出到OutputStream
|
||||
*/
|
||||
@Test
|
||||
public void example8() throws Exception{
|
||||
//toOutputStream(流对象)
|
||||
OutputStream os = new FileOutputStream("src/main/resources/a380_1280x1024_OutputStream.png");
|
||||
Thumbnails.of("src/main/resources/example.jpg")
|
||||
.size(1280, 1024)
|
||||
.toOutputStream(os);
|
||||
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* 输出到BufferedImage
|
||||
*/
|
||||
@Test
|
||||
public void example9() throws Exception{
|
||||
//asBufferedImage() 返回BufferedImage
|
||||
BufferedImage thumbnail = Thumbnails.of("src/main/resources/example.jpg")
|
||||
.size(1280, 1024)
|
||||
.asBufferedImage();
|
||||
ImageIO.write(thumbnail, "jpg", new File("src/main/resources/a380_1280x1024_BufferedImage.jpg"));
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
}
|
||||
|
||||
@@ -0,0 +1,329 @@
|
||||
package org.javase.tutorials.zip4j;
|
||||
|
||||
import java.io.File;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Collections;
|
||||
import java.util.List;
|
||||
|
||||
import org.apache.commons.lang3.StringUtils;
|
||||
|
||||
import net.lingala.zip4j.core.ZipFile;
|
||||
import net.lingala.zip4j.exception.ZipException;
|
||||
import net.lingala.zip4j.model.FileHeader;
|
||||
import net.lingala.zip4j.model.ZipParameters;
|
||||
import net.lingala.zip4j.util.Zip4jConstants;
|
||||
|
||||
/**
|
||||
* ZIP压缩文件操作工具类 支持密码,默认采用UTF-8编码 依赖zip4j开源项目(http://www.lingala.net/zip4j/)
|
||||
* 版本1.3.2
|
||||
*
|
||||
* @author ninemax
|
||||
*/
|
||||
public class CompressUtil {
|
||||
|
||||
/**
|
||||
* 使用给定密码解压指定的ZIP压缩文件到指定目录
|
||||
* <p>
|
||||
* 如果指定目录不存在,可以自动创建,不合法的路径将导致异常被抛出
|
||||
*
|
||||
* @param zip
|
||||
* 指定的ZIP压缩文件
|
||||
* @param dest
|
||||
* 解压目录
|
||||
* @param passwd
|
||||
* ZIP文件的密码
|
||||
* @return 解压后文件数组
|
||||
* @throws ZipException
|
||||
* 压缩文件有损坏或者解压缩失败抛出
|
||||
*/
|
||||
public static File[] unzip(String zip, String dest, String passwd)
|
||||
throws ZipException {
|
||||
File zipFile = new File(zip);
|
||||
return unzip(zipFile, dest, passwd, null);
|
||||
}
|
||||
|
||||
/**
|
||||
* 使用给定密码解压指定的ZIP压缩文件到当前目录
|
||||
*
|
||||
* @param zip
|
||||
* 指定的ZIP压缩文件
|
||||
* @param passwd
|
||||
* ZIP文件的密码
|
||||
* @return 解压后文件数组
|
||||
* @throws ZipException
|
||||
* 压缩文件有损坏或者解压缩失败抛出
|
||||
*/
|
||||
public static File[] unzip(String zip, String passwd) throws ZipException {
|
||||
File zipFile = new File(zip);
|
||||
File parentDir = zipFile.getParentFile();
|
||||
return unzip(zipFile, parentDir.getAbsolutePath(), passwd, null);
|
||||
}
|
||||
|
||||
/**
|
||||
* 使用给定密码解压指定的ZIP压缩文件到指定目录
|
||||
* <p>
|
||||
* 如果指定目录不存在,可以自动创建,不合法的路径将导致异常被抛出
|
||||
*
|
||||
* @param zip
|
||||
* 指定的ZIP压缩文件
|
||||
* @param dest
|
||||
* 解压目录
|
||||
* @param passwd
|
||||
* ZIP文件的密码
|
||||
* @param charset
|
||||
* ZIP文件的编码
|
||||
* @return 解压后文件数组
|
||||
* @throws ZipException
|
||||
* 压缩文件有损坏或者解压缩失败抛出
|
||||
*/
|
||||
public static File[] unzip(File zipFile, String dest, String passwd,
|
||||
String charset) throws ZipException {
|
||||
ZipFile zFile = new ZipFile(zipFile);
|
||||
if (null != charset || !"".equals(charset)) {
|
||||
zFile.setFileNameCharset(charset);
|
||||
}
|
||||
if (!zFile.isValidZipFile()) {
|
||||
throw new ZipException("压缩文件不合法,可能被损坏.");
|
||||
}
|
||||
File destDir = new File(dest);
|
||||
if (destDir.isDirectory() && !destDir.exists()) {
|
||||
destDir.mkdir();
|
||||
}
|
||||
if (zFile.isEncrypted()) {
|
||||
zFile.setPassword(passwd.toCharArray());
|
||||
}
|
||||
zFile.extractAll(dest);
|
||||
|
||||
List<FileHeader> headerList = zFile.getFileHeaders();
|
||||
List<File> extractedFileList = new ArrayList<File>();
|
||||
for (FileHeader fileHeader : headerList) {
|
||||
if (!fileHeader.isDirectory()) {
|
||||
extractedFileList.add(new File(destDir, fileHeader
|
||||
.getFileName()));
|
||||
}
|
||||
}
|
||||
File[] extractedFiles = new File[extractedFileList.size()];
|
||||
extractedFileList.toArray(extractedFiles);
|
||||
return extractedFiles;
|
||||
}
|
||||
|
||||
/**
|
||||
* 压缩指定文件到当前文件夹
|
||||
*
|
||||
* @param src
|
||||
* 要压缩的指定文件
|
||||
* @return 最终的压缩文件存放的绝对路径,如果为null则说明压缩失败.
|
||||
*/
|
||||
public static String zip(String src) {
|
||||
return zip(src, null);
|
||||
}
|
||||
|
||||
/**
|
||||
* 使用给定密码压缩指定文件或文件夹到当前目录
|
||||
*
|
||||
* @param src
|
||||
* 要压缩的文件
|
||||
* @param passwd
|
||||
* 压缩使用的密码
|
||||
* @return 最终的压缩文件存放的绝对路径,如果为null则说明压缩失败.
|
||||
*/
|
||||
public static String zip(String src, String passwd) {
|
||||
return zip(src, null, passwd);
|
||||
}
|
||||
|
||||
/**
|
||||
* 使用给定密码压缩指定文件或文件夹到当前目录
|
||||
*
|
||||
* @param src
|
||||
* 要压缩的文件
|
||||
* @param dest
|
||||
* 压缩文件存放路径
|
||||
* @param passwd
|
||||
* 压缩使用的密码
|
||||
* @return 最终的压缩文件存放的绝对路径,如果为null则说明压缩失败.
|
||||
*/
|
||||
public static String zip(String src, String dest, String passwd) {
|
||||
return zip(src, dest, true, passwd);
|
||||
}
|
||||
|
||||
/**
|
||||
* 使用给定密码压缩指定文件或文件夹到指定位置.
|
||||
* <p>
|
||||
* dest可传最终压缩文件存放的绝对路径,也可以传存放目录,也可以传null或者"".<br />
|
||||
* 如果传null或者""则将压缩文件存放在当前目录,即跟源文件同目录,压缩文件名取源文件名,以.zip为后缀;<br />
|
||||
* 如果以路径分隔符(File.separator)结尾,则视为目录,压缩文件名取源文件名,以.zip为后缀,否则视为文件名.
|
||||
*
|
||||
* @param src
|
||||
* 要压缩的文件或文件夹路径
|
||||
* @param dest
|
||||
* 压缩文件存放路径
|
||||
* @param isCreateDir
|
||||
* 是否在压缩文件里创建目录,仅在压缩文件为目录时有效.<br />
|
||||
* 如果为false,将直接压缩目录下文件到压缩文件.
|
||||
* @param passwd
|
||||
* 压缩使用的密码
|
||||
* @return 最终的压缩文件存放的绝对路径,如果为null则说明压缩失败.
|
||||
*/
|
||||
public static String zip(String src, String dest, boolean isCreateDir,
|
||||
String passwd) {
|
||||
File srcFile = new File(src);
|
||||
dest = buildDestinationZipFilePath(srcFile, dest);
|
||||
ZipParameters parameters = new ZipParameters();
|
||||
parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE); // 压缩方式
|
||||
parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL); // 压缩级别
|
||||
if (!StringUtils.isEmpty(passwd)) {
|
||||
parameters.setEncryptFiles(true);
|
||||
parameters.setEncryptionMethod(Zip4jConstants.ENC_METHOD_STANDARD); // 加密方式
|
||||
parameters.setPassword(passwd.toCharArray());
|
||||
}
|
||||
try {
|
||||
ZipFile zipFile = new ZipFile(dest);
|
||||
if (srcFile.isDirectory()) {
|
||||
// 如果不创建目录的话,将直接把给定目录下的文件压缩到压缩文件,即没有目录结构
|
||||
if (!isCreateDir) {
|
||||
File[] subFiles = srcFile.listFiles();
|
||||
ArrayList<File> temp = new ArrayList<File>();
|
||||
Collections.addAll(temp, subFiles);
|
||||
zipFile.addFiles(temp, parameters);
|
||||
return dest;
|
||||
}
|
||||
zipFile.addFolder(srcFile, parameters);
|
||||
} else {
|
||||
zipFile.addFile(srcFile, parameters);
|
||||
}
|
||||
return dest;
|
||||
} catch (ZipException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* 构建压缩文件存放路径,如果不存在将会创建 传入的可能是文件名或者目录,也可能不传,此方法用以转换最终压缩文件的存放路径
|
||||
*
|
||||
* @param srcFile
|
||||
* 源文件
|
||||
* @param destParam
|
||||
* 压缩目标路径
|
||||
* @return 正确的压缩文件存放路径
|
||||
*/
|
||||
private static String buildDestinationZipFilePath(File srcFile,
|
||||
String destParam) {
|
||||
if (StringUtils.isEmpty(destParam)) {
|
||||
if (srcFile.isDirectory()) {
|
||||
destParam = srcFile.getParent() + File.separator
|
||||
+ srcFile.getName() + ".zip";
|
||||
} else {
|
||||
String fileName = srcFile.getName().substring(0,
|
||||
srcFile.getName().lastIndexOf("."));
|
||||
destParam = srcFile.getParent() + File.separator + fileName
|
||||
+ ".zip";
|
||||
}
|
||||
} else {
|
||||
createDestDirectoryIfNecessary(destParam); // 在指定路径不存在的情况下将其创建出来
|
||||
if (destParam.endsWith(File.separator)) {
|
||||
String fileName = "";
|
||||
if (srcFile.isDirectory()) {
|
||||
fileName = srcFile.getName();
|
||||
} else {
|
||||
fileName = srcFile.getName().substring(0,
|
||||
srcFile.getName().lastIndexOf("."));
|
||||
}
|
||||
destParam += fileName + ".zip";
|
||||
}
|
||||
}
|
||||
return destParam;
|
||||
}
|
||||
|
||||
/**
|
||||
* 在必要的情况下创建压缩文件存放目录,比如指定的存放路径并没有被创建
|
||||
*
|
||||
* @param destParam
|
||||
* 指定的存放路径,有可能该路径并没有被创建
|
||||
*/
|
||||
private static void createDestDirectoryIfNecessary(String destParam) {
|
||||
File destDir = null;
|
||||
if (destParam.endsWith(File.separator)) {
|
||||
destDir = new File(destParam);
|
||||
} else {
|
||||
destDir = new File(destParam.substring(0,
|
||||
destParam.lastIndexOf(File.separator)));
|
||||
}
|
||||
if (!destDir.exists()) {
|
||||
destDir.mkdirs();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* 删除压缩文件中的目录
|
||||
*
|
||||
* @param file
|
||||
* 目标zip文件
|
||||
* @param removeDir
|
||||
* 要移除的目录
|
||||
* @param charset
|
||||
* 编码
|
||||
* @throws ZipException
|
||||
*/
|
||||
@SuppressWarnings("rawtypes")
|
||||
private static void removeDirFromZipArchive(String file, String removeDir,
|
||||
String charset) throws ZipException {
|
||||
// 创建ZipFile并设置编码
|
||||
ZipFile zipFile = new ZipFile(file);
|
||||
|
||||
if (null != charset || !"".equals(charset)) {
|
||||
zipFile.setFileNameCharset(charset);
|
||||
}
|
||||
|
||||
// 给要删除的目录加上路径分隔符
|
||||
if (!removeDir.endsWith(File.separator))
|
||||
removeDir += File.separator;
|
||||
|
||||
// 如果目录不存在, 直接返回
|
||||
FileHeader dirHeader = zipFile.getFileHeader(removeDir);
|
||||
if (null == dirHeader)
|
||||
return;
|
||||
|
||||
// 遍历压缩文件中所有的FileHeader, 将指定删除目录下的子文件名保存起来
|
||||
List headersList = zipFile.getFileHeaders();
|
||||
List<String> removeHeaderNames = new ArrayList<String>();
|
||||
for (int i = 0, len = headersList.size(); i < len; i++) {
|
||||
FileHeader subHeader = (FileHeader) headersList.get(i);
|
||||
if (subHeader.getFileName().startsWith(dirHeader.getFileName())
|
||||
&& !subHeader.getFileName().equals(dirHeader.getFileName())) {
|
||||
removeHeaderNames.add(subHeader.getFileName());
|
||||
}
|
||||
}
|
||||
// 遍历删除指定目录下的所有子文件, 最后删除指定目录(此时已为空目录)
|
||||
for (String headerNameString : removeHeaderNames) {
|
||||
zipFile.removeFile(headerNameString);
|
||||
}
|
||||
zipFile.removeFile(dirHeader);
|
||||
}
|
||||
|
||||
/**
|
||||
* 打印zip文件信息
|
||||
*
|
||||
* @param path
|
||||
*/
|
||||
public static void printZipInfo(String path) {
|
||||
try {
|
||||
ZipFile zipFile = new ZipFile(path);
|
||||
List fileHeaderList = zipFile.getFileHeaders();
|
||||
for (int i = 0; i < fileHeaderList.size(); i++) {
|
||||
FileHeader fileHeader = (FileHeader) fileHeaderList.get(i);
|
||||
// FileHeader包含zip文件中对应文件的很多属性
|
||||
System.out.println("****File Details for: " + fileHeader.getFileName() + "*****");
|
||||
System.out.println("文件名: " + fileHeader.getFileName());
|
||||
System.out.println("是否为目录: " + fileHeader.isDirectory());
|
||||
System.out.println("压缩后大小: " + fileHeader.getCompressedSize());
|
||||
System.out.println("未压缩大小: " + fileHeader.getUncompressedSize());
|
||||
System.out.println("************************************************************");
|
||||
}
|
||||
} catch (ZipException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,215 @@
|
||||
package org.javase.tutorials.zip4j;
|
||||
|
||||
import java.io.File;
|
||||
import java.io.FileInputStream;
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
import java.util.ArrayList;
|
||||
|
||||
import net.lingala.zip4j.core.ZipFile;
|
||||
import net.lingala.zip4j.exception.ZipException;
|
||||
import net.lingala.zip4j.model.ZipParameters;
|
||||
import net.lingala.zip4j.util.Zip4jConstants;
|
||||
|
||||
import org.junit.Before;
|
||||
import org.junit.Test;
|
||||
|
||||
/**
|
||||
* 使用zip4j压缩或解压文件
|
||||
* @author 冯靖
|
||||
*
|
||||
*/
|
||||
public class Zip4j {
|
||||
|
||||
|
||||
@Before
|
||||
public void setup() throws Exception{
|
||||
ZipFile zipFile = new ZipFile("src/main/resources/AddFilesDeflateComp.zip");
|
||||
if(zipFile.getFile().exists()){
|
||||
zipFile.getFile().delete();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* 示例1 创建压缩包添加文件到压缩包中（未设置加密）
|
||||
*/
|
||||
@Test
|
||||
public void example1(){
|
||||
try {
|
||||
|
||||
ZipFile zipFile = new ZipFile("src/main/resources/AddFilesDeflateComp.zip");
|
||||
|
||||
ArrayList<File> filesToAdd = new ArrayList<File>();
|
||||
filesToAdd.add(new File("src/main/resources/sample.txt"));
|
||||
filesToAdd.add(new File("src/main/resources/zip4j.txt"));
|
||||
filesToAdd.add(new File("src/main/resources/zip4j-1.3.2.jar"));
|
||||
|
||||
ZipParameters parameters = new ZipParameters();
|
||||
parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE); // set compression method to deflate compression
|
||||
parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);
|
||||
zipFile.addFiles(filesToAdd, parameters);
|
||||
|
||||
CompressUtil.printZipInfo("src/main/resources/AddFilesDeflateComp.zip");
|
||||
|
||||
|
||||
} catch (ZipException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* 示例2 创建压缩包添加文件到指定目录中进行压缩
|
||||
*/
|
||||
@Test
|
||||
public void example2(){
|
||||
try {
|
||||
ZipFile zipFile = new ZipFile("src/main/resources/AddFilesDeflateComp.zip");
|
||||
ArrayList<File> filesToAdd = new ArrayList<File>();
|
||||
filesToAdd.add(new File("src/main/resources/sample.txt"));
|
||||
filesToAdd.add(new File("src/main/resources/zip4j.txt"));
|
||||
filesToAdd.add(new File("src/main/resources/zip4j-1.3.2.jar"));
|
||||
|
||||
ZipParameters parameters = new ZipParameters();
|
||||
parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
|
||||
|
||||
parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);
|
||||
parameters.setRootFolderInZip("target/");
|
||||
|
||||
zipFile.addFiles(filesToAdd, parameters);
|
||||
} catch (ZipException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* 示例3 添加文件夹到压缩包中
|
||||
*/
|
||||
@Test
|
||||
public void example3(){
|
||||
try {
|
||||
|
||||
ZipFile zipFile = new ZipFile("src/main/resources/AddFolder.zip");
|
||||
String folderToAdd = "src/main/resources";
|
||||
|
||||
ZipParameters parameters = new ZipParameters();
|
||||
|
||||
parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
|
||||
parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);
|
||||
zipFile.addFolder(folderToAdd, parameters);
|
||||
|
||||
} catch (ZipException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* 示例4 创建加密压缩包
|
||||
*/
|
||||
@Test
|
||||
public void example4(){
|
||||
try {
|
||||
ZipFile zipFile = new ZipFile("src/main/resources/AddFilesWithAESZipEncryption.zip");
|
||||
|
||||
ArrayList<File> filesToAdd = new ArrayList<File>();
|
||||
filesToAdd.add(new File("src/main/resources/sample.txt"));
|
||||
filesToAdd.add(new File("src/main/resources/zip4j.txt"));
|
||||
filesToAdd.add(new File("src/main/resources/zip4j-1.3.2.jar"));
|
||||
|
||||
ZipParameters parameters = new ZipParameters();
|
||||
parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
|
||||
|
||||
parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);
|
||||
parameters.setEncryptFiles(true);
|
||||
|
||||
parameters.setEncryptionMethod(Zip4jConstants.ENC_METHOD_AES);
|
||||
|
||||
|
||||
parameters.setAesKeyStrength(Zip4jConstants.AES_STRENGTH_256);
|
||||
parameters.setPassword("123456");
|
||||
|
||||
zipFile.addFiles(filesToAdd, parameters);
|
||||
} catch (ZipException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* 示例5 创建分卷压缩包
|
||||
*/
|
||||
@Test
|
||||
public void example5(){
|
||||
try {
|
||||
|
||||
ZipFile zipFile = new ZipFile("src/main/resources/CreateSplitZipFile.zip");
|
||||
|
||||
ArrayList<File> filesToAdd = new ArrayList<File>();
|
||||
filesToAdd.add(new File("src/main/resources/sample.txt"));
|
||||
filesToAdd.add(new File("src/main/resources/zip4j.txt"));
|
||||
filesToAdd.add(new File("src/main/resources/zip4j-1.3.2.jar"));
|
||||
|
||||
ZipParameters parameters = new ZipParameters();
|
||||
parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
|
||||
|
||||
parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);
|
||||
|
||||
zipFile.createZipFile(filesToAdd, parameters, true, 65536);
|
||||
} catch (ZipException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* 示例6 通过流的方式添加文件到压缩包中
|
||||
*/
|
||||
@Test
|
||||
public void example6(){
|
||||
InputStream is = null;
|
||||
|
||||
try {
|
||||
ZipFile zipFile = new ZipFile("src/main/resources/AddStreamToZip.zip");
|
||||
|
||||
ZipParameters parameters = new ZipParameters();
|
||||
parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
|
||||
parameters.setFileNameInZip("sample.txt");
|
||||
parameters.setSourceExternalStream(true);
|
||||
|
||||
is = new FileInputStream("src/main/resources/sample.txt");
|
||||
zipFile.addStream(is, parameters);
|
||||
|
||||
} catch (Exception e) {
|
||||
e.printStackTrace();
|
||||
} finally {
|
||||
if (is != null) {
|
||||
try {
|
||||
is.close();
|
||||
} catch (IOException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* 示例7 解压压缩文件
|
||||
*/
|
||||
@Test
|
||||
public void example7(){
|
||||
|
||||
example4();
|
||||
|
||||
try {
|
||||
ZipFile zipFile = new ZipFile("src/main/resources/AddFilesWithAESZipEncryption.zip");
|
||||
if (zipFile.isEncrypted()) {
|
||||
// if yes, then set the password for the zip file
|
||||
zipFile.setPassword("123456");
|
||||
zipFile.extractAll("src/main/resources/zipfile");
|
||||
}
|
||||
} catch (ZipException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
Binary file not shown.
|
After Width: | Height: | Size: 21 KiB |
@@ -0,0 +1,51 @@
|
||||
ZIP4J 是一个支持处理ZIP文件的开源库
|
||||
支持创建，修改，添加，删除，解压 压缩文件
|
||||
支持读/写密码保护
|
||||
支持AES加密 128/256
|
||||
支持标准ZIP加密
|
||||
支持进度监视器
|
||||
自持Unicode 文件名
|
||||
支持创建分卷压缩文件
|
||||
支持将文件添加到压缩包中但不进行压缩
|
||||
|
||||
|
||||
Create, Add, Extract, Update, Remove files from a Zip file
|
||||
针对ZIP压缩文件创建、添加、抽出、更新和移除文件
|
||||
Read/Write password protected Zip files
|
||||
(读写有密码保护的Zip文件)
|
||||
Supports AES 128/256 Encryption
|
||||
(支持AES 128/256算法加密)
|
||||
Supports Standard Zip Encryption
|
||||
(支持标准Zip算法加密)
|
||||
Supports Zip64 format
|
||||
(支持zip64格式)
|
||||
Supports Store (No Compression) and Deflate compression method
|
||||
(支持Store(非压缩)和Deflate压缩方法---不太明白)
|
||||
Create or extract files from Split Zip files (Ex: z01, z02,...zip)
|
||||
(针对分块zip文件创建和抽出文件)
|
||||
Supports Unicode file names
|
||||
(支持Unicode编码文件名)
|
||||
Progress Monitor
|
||||
(进度监控)
|
||||
|
||||
压缩效率
|
||||
|
||||
ZIP4J提供5中压缩算法：
|
||||
|
||||
DEFLATE_LEVEL_FASTEST
|
||||
DEFLATE_LEVEL_FASTEST
|
||||
DEFLATE_LEVEL_NORMAL
|
||||
DEFLATE_LEVEL_MAXIMUM
|
||||
DEFLATE_LEVEL_ULTRA
|
||||
根据API提供的几种不同压缩级别进行测试（文件夹压缩），测试结果如下：
|
||||
|
||||
一个180M的文件夹压缩后
|
||||
|
||||
WinRAR 30秒 - 78.7 MB ；
|
||||
NORMAL - 18 秒 91.2 MB ；
|
||||
FAST 13秒 -93.1 MB；
|
||||
FASTEST - 最快速10 秒94.7 MB
|
||||
MAXIMUM 23 秒 - 90.7 MB；
|
||||
ULTRA -50 90.6 MB
|
||||
|
||||
ZIP4J 项目地址为 ：http://www.lingala.net/zip4j/
|
||||
Binary file not shown.
|
After Width: | Height: | Size: 56 KiB |
Binary file not shown.
@@ -0,0 +1,262 @@
|
||||
package org.javase.tutorials.zip4j;
|
||||
|
||||
|
||||
import java.io.File;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Collections;
|
||||
import java.util.List;
|
||||
|
||||
import org.apache.commons.lang3.StringUtils;
|
||||
|
||||
import net.lingala.zip4j.core.ZipFile;
|
||||
import net.lingala.zip4j.exception.ZipException;
|
||||
import net.lingala.zip4j.model.FileHeader;
|
||||
import net.lingala.zip4j.model.ZipParameters;
|
||||
import net.lingala.zip4j.util.Zip4jConstants;
|
||||
|
||||
/**
|
||||
* ZIP压缩文件操作工具类
|
||||
* 支持密码,默认采用UTF-8编码
|
||||
* 依赖zip4j开源项目(http://www.lingala.net/zip4j/)
|
||||
* 版本1.3.2
|
||||
* @author ninemax
|
||||
*/
|
||||
public class CompressUtil {
|
||||
|
||||
/**
|
||||
* 使用给定密码解压指定的ZIP压缩文件到指定目录
|
||||
* <p>
|
||||
* 如果指定目录不存在,可以自动创建,不合法的路径将导致异常被抛出
|
||||
* @param zip 指定的ZIP压缩文件
|
||||
* @param dest 解压目录
|
||||
* @param passwd ZIP文件的密码
|
||||
* @return 解压后文件数组
|
||||
* @throws ZipException 压缩文件有损坏或者解压缩失败抛出
|
||||
*/
|
||||
public static File [] unzip(String zip, String dest, String passwd) throws ZipException {
|
||||
File zipFile = new File(zip);
|
||||
return unzip(zipFile, dest, passwd);
|
||||
}
|
||||
|
||||
/**
|
||||
* 使用给定密码解压指定的ZIP压缩文件到当前目录
|
||||
* @param zip 指定的ZIP压缩文件
|
||||
* @param passwd ZIP文件的密码
|
||||
* @return 解压后文件数组
|
||||
* @throws ZipException 压缩文件有损坏或者解压缩失败抛出
|
||||
*/
|
||||
public static File [] unzip(String zip, String passwd) throws ZipException {
|
||||
File zipFile = new File(zip);
|
||||
File parentDir = zipFile.getParentFile();
|
||||
return unzip(zipFile, parentDir.getAbsolutePath(), passwd);
|
||||
}
|
||||
|
||||
/**
|
||||
* 使用给定密码解压指定的ZIP压缩文件到指定目录
|
||||
* <p>
|
||||
* 如果指定目录不存在,可以自动创建,不合法的路径将导致异常被抛出
|
||||
* @param zip 指定的ZIP压缩文件
|
||||
* @param dest 解压目录
|
||||
* @param passwd ZIP文件的密码
|
||||
* @return 解压后文件数组
|
||||
* @throws ZipException 压缩文件有损坏或者解压缩失败抛出
|
||||
*/
|
||||
public static File [] unzip(File zipFile, String dest, String passwd) throws ZipException {
|
||||
ZipFile zFile = new ZipFile(zipFile);
|
||||
zFile.setFileNameCharset("GBK");
|
||||
if (!zFile.isValidZipFile()) {
|
||||
throw new ZipException("压缩文件不合法,可能被损坏.");
|
||||
}
|
||||
File destDir = new File(dest);
|
||||
if (destDir.isDirectory() && !destDir.exists()) {
|
||||
destDir.mkdir();
|
||||
}
|
||||
if (zFile.isEncrypted()) {
|
||||
zFile.setPassword(passwd.toCharArray());
|
||||
}
|
||||
zFile.extractAll(dest);
|
||||
|
||||
List<FileHeader> headerList = zFile.getFileHeaders();
|
||||
List<File> extractedFileList = new ArrayList<File>();
|
||||
for(FileHeader fileHeader : headerList) {
|
||||
if (!fileHeader.isDirectory()) {
|
||||
extractedFileList.add(new File(destDir,fileHeader.getFileName()));
|
||||
}
|
||||
}
|
||||
File [] extractedFiles = new File[extractedFileList.size()];
|
||||
extractedFileList.toArray(extractedFiles);
|
||||
return extractedFiles;
|
||||
}
|
||||
|
||||
/**
|
||||
* 压缩指定文件到当前文件夹
|
||||
* @param src 要压缩的指定文件
|
||||
* @return 最终的压缩文件存放的绝对路径,如果为null则说明压缩失败.
|
||||
*/
|
||||
public static String zip(String src) {
|
||||
return zip(src,null);
|
||||
}
|
||||
|
||||
/**
|
||||
* 使用给定密码压缩指定文件或文件夹到当前目录
|
||||
* @param src 要压缩的文件
|
||||
* @param passwd 压缩使用的密码
|
||||
* @return 最终的压缩文件存放的绝对路径,如果为null则说明压缩失败.
|
||||
*/
|
||||
public static String zip(String src, String passwd) {
|
||||
return zip(src, null, passwd);
|
||||
}
|
||||
|
||||
/**
|
||||
* 使用给定密码压缩指定文件或文件夹到当前目录
|
||||
* @param src 要压缩的文件
|
||||
* @param dest 压缩文件存放路径
|
||||
* @param passwd 压缩使用的密码
|
||||
* @return 最终的压缩文件存放的绝对路径,如果为null则说明压缩失败.
|
||||
*/
|
||||
public static String zip(String src, String dest, String passwd) {
|
||||
return zip(src, dest, true, passwd);
|
||||
}
|
||||
|
||||
/**
|
||||
* 使用给定密码压缩指定文件或文件夹到指定位置.
|
||||
* <p>
|
||||
* dest可传最终压缩文件存放的绝对路径,也可以传存放目录,也可以传null或者"".<br />
|
||||
* 如果传null或者""则将压缩文件存放在当前目录,即跟源文件同目录,压缩文件名取源文件名,以.zip为后缀;<br />
|
||||
* 如果以路径分隔符(File.separator)结尾,则视为目录,压缩文件名取源文件名,以.zip为后缀,否则视为文件名.
|
||||
* @param src 要压缩的文件或文件夹路径
|
||||
* @param dest 压缩文件存放路径
|
||||
* @param isCreateDir 是否在压缩文件里创建目录,仅在压缩文件为目录时有效.<br />
|
||||
* 如果为false,将直接压缩目录下文件到压缩文件.
|
||||
* @param passwd 压缩使用的密码
|
||||
* @return 最终的压缩文件存放的绝对路径,如果为null则说明压缩失败.
|
||||
*/
|
||||
public static String zip(String src, String dest, boolean isCreateDir, String passwd) {
|
||||
File srcFile = new File(src);
|
||||
dest = buildDestinationZipFilePath(srcFile, dest);
|
||||
ZipParameters parameters = new ZipParameters();
|
||||
parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE); // 压缩方式
|
||||
parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL); // 压缩级别
|
||||
if (!StringUtils.isEmpty(passwd)) {
|
||||
parameters.setEncryptFiles(true);
|
||||
parameters.setEncryptionMethod(Zip4jConstants.ENC_METHOD_STANDARD); // 加密方式
|
||||
parameters.setPassword(passwd.toCharArray());
|
||||
}
|
||||
try {
|
||||
ZipFile zipFile = new ZipFile(dest);
|
||||
if (srcFile.isDirectory()) {
|
||||
// 如果不创建目录的话,将直接把给定目录下的文件压缩到压缩文件,即没有目录结构
|
||||
if (!isCreateDir) {
|
||||
File [] subFiles = srcFile.listFiles();
|
||||
ArrayList<File> temp = new ArrayList<File>();
|
||||
Collections.addAll(temp, subFiles);
|
||||
zipFile.addFiles(temp, parameters);
|
||||
return dest;
|
||||
}
|
||||
zipFile.addFolder(srcFile, parameters);
|
||||
} else {
|
||||
zipFile.addFile(srcFile, parameters);
|
||||
}
|
||||
return dest;
|
||||
} catch (ZipException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* 构建压缩文件存放路径,如果不存在将会创建
|
||||
* 传入的可能是文件名或者目录,也可能不传,此方法用以转换最终压缩文件的存放路径
|
||||
* @param srcFile 源文件
|
||||
* @param destParam 压缩目标路径
|
||||
* @return 正确的压缩文件存放路径
|
||||
*/
|
||||
private static String buildDestinationZipFilePath(File srcFile,String destParam) {
|
||||
if (StringUtils.isEmpty(destParam)) {
|
||||
if (srcFile.isDirectory()) {
|
||||
destParam = srcFile.getParent() + File.separator + srcFile.getName() + ".zip";
|
||||
} else {
|
||||
String fileName = srcFile.getName().substring(0, srcFile.getName().lastIndexOf("."));
|
||||
destParam = srcFile.getParent() + File.separator + fileName + ".zip";
|
||||
}
|
||||
} else {
|
||||
createDestDirectoryIfNecessary(destParam); // 在指定路径不存在的情况下将其创建出来
|
||||
if (destParam.endsWith(File.separator)) {
|
||||
String fileName = "";
|
||||
if (srcFile.isDirectory()) {
|
||||
fileName = srcFile.getName();
|
||||
} else {
|
||||
fileName = srcFile.getName().substring(0, srcFile.getName().lastIndexOf("."));
|
||||
}
|
||||
destParam += fileName + ".zip";
|
||||
}
|
||||
}
|
||||
return destParam;
|
||||
}
|
||||
|
||||
/**
|
||||
* 在必要的情况下创建压缩文件存放目录,比如指定的存放路径并没有被创建
|
||||
* @param destParam 指定的存放路径,有可能该路径并没有被创建
|
||||
*/
|
||||
private static void createDestDirectoryIfNecessary(String destParam) {
|
||||
File destDir = null;
|
||||
if (destParam.endsWith(File.separator)) {
|
||||
destDir = new File(destParam);
|
||||
} else {
|
||||
destDir = new File(destParam.substring(0, destParam.lastIndexOf(File.separator)));
|
||||
}
|
||||
if (!destDir.exists()) {
|
||||
destDir.mkdirs();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* 删除压缩文件中的目录
|
||||
* @param file 目标zip文件
|
||||
* @param removeDir 要移除的目录
|
||||
* @throws ZipException
|
||||
*/
|
||||
@SuppressWarnings("rawtypes")
|
||||
private static void removeDirFromZipArchive(String file, String removeDir) throws ZipException {
|
||||
// 创建ZipFile并设置编码
|
||||
ZipFile zipFile = new ZipFile(file);
|
||||
zipFile.setFileNameCharset("GBK");
|
||||
|
||||
// 给要删除的目录加上路径分隔符
|
||||
if (!removeDir.endsWith(File.separator)) removeDir += File.separator;
|
||||
|
||||
// 如果目录不存在, 直接返回
|
||||
FileHeader dirHeader = zipFile.getFileHeader(removeDir);
|
||||
if (null == dirHeader) return;
|
||||
|
||||
// 遍历压缩文件中所有的FileHeader, 将指定删除目录下的子文件名保存起来
|
||||
List headersList = zipFile.getFileHeaders();
|
||||
List<String> removeHeaderNames = new ArrayList<String>();
|
||||
for(int i=0, len = headersList.size(); i<len; i++) {
|
||||
FileHeader subHeader = (FileHeader) headersList.get(i);
|
||||
if (subHeader.getFileName().startsWith(dirHeader.getFileName())
|
||||
&& !subHeader.getFileName().equals(dirHeader.getFileName())) {
|
||||
removeHeaderNames.add(subHeader.getFileName());
|
||||
}
|
||||
}
|
||||
// 遍历删除指定目录下的所有子文件, 最后删除指定目录(此时已为空目录)
|
||||
for(String headerNameString : removeHeaderNames) {
|
||||
zipFile.removeFile(headerNameString);
|
||||
}
|
||||
zipFile.removeFile(dirHeader);
|
||||
}
|
||||
|
||||
|
||||
public static void main(String[] args) {
|
||||
zip("d:\\test\\cc", "d:\\test\\cc.zip", "11");
|
||||
try {
|
||||
File[] files = unzip("d:\\test\\汉字.zip", "aa");
|
||||
for (int i = 0; i < files.length; i++) {
|
||||
System.out.println(files[i]);
|
||||
}
|
||||
} catch (ZipException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user