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xiangwb
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package com.xwbing.util;
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import java.io.*;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import java.net.URLEncoder;
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import java.security.MessageDigest;
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import java.util.Map;
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/**
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* 项目名称: boot-module-demo
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* 创建时间: 2017/11/16 17:46
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* 作者: xiangwb
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* 说明: 快递鸟工具类
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* 文档: http://www.kdniao.com/documents
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*/
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public class KdniaoUtil {
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/**
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* 向指定 URL 发送POST方法的请求
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*
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* @param url 发送请求的 URL
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* @param params 请求的参数集合
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* @return 远程资源的响应结果
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*/
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public static String sendPost(String url, Map<String, String> params) {
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OutputStreamWriter out = null;
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BufferedReader in = null;
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StringBuilder result = new StringBuilder();
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try {
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URL realUrl = new URL(url);
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HttpURLConnection conn = (HttpURLConnection) realUrl
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.openConnection();
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// 发送POST请求必须设置如下两行
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conn.setDoOutput(true);
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conn.setDoInput(true);
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// POST方法
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conn.setRequestMethod("POST");
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// 设置通用的请求属性
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conn.setRequestProperty("accept", "*/*");
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conn.setRequestProperty("connection", "Keep-Alive");
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conn.setRequestProperty("user-agent",
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"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
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conn.setRequestProperty("Content-Type",
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"application/x-www-form-urlencoded");
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conn.connect();
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// 获取URLConnection对象对应的输出流
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out = new OutputStreamWriter(conn.getOutputStream(), "UTF-8");
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// 发送请求参数
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if (params != null) {
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StringBuilder param = new StringBuilder();
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for (Map.Entry<String, String> entry : params.entrySet()) {
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if (param.length() > 0) {
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param.append("&");
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}
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param.append(entry.getKey());
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param.append("=");
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param.append(entry.getValue());
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System.out.println(entry.getKey() + ":" + entry.getValue());
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}
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System.out.println("param:" + param.toString());
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out.write(param.toString());
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}
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// flush输出流的缓冲
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out.flush();
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// 定义BufferedReader输入流来读取URL的响应
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in = new BufferedReader(new InputStreamReader(
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conn.getInputStream(), "UTF-8"));
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String line;
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while ((line = in.readLine()) != null) {
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result.append(line);
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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// 使用finally块来关闭输出流、输入流
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finally {
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try {
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if (out != null) {
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out.close();
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}
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if (in != null) {
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in.close();
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}
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} catch (IOException ex) {
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ex.printStackTrace();
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}
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}
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return result.toString();
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}
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/**
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* @param str 内容
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* @param charset 编码方式
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* @return
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* @throws UnsupportedEncodingException
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*/
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public static String urlEncoder(String str, String charset) throws UnsupportedEncodingException {
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return URLEncoder.encode(str, charset);
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}
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/**
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* 电商Sign签名生成
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*
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* @param content 内容
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* @param keyValue Appkey
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* @param charset 编码方式
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* @return DataSign签名
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* @throws Exception
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*/
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public static String encrypt(String content, String keyValue, String charset) throws Exception {
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if (keyValue != null) {
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return base64(MD5(content + keyValue, charset), charset);
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}
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return base64(MD5(content, charset), charset);
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}
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private static char[] base64EncodeChars = new char[]{'A', 'B', 'C', 'D',
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'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q',
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'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd',
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'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q',
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'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3',
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'4', '5', '6', '7', '8', '9', '+', '/'};
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/**
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* MD5加密
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*
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* @param str 内容
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* @param charset 编码方式
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* @throws Exception
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*/
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private static String MD5(String str, String charset) throws Exception {
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MessageDigest md = MessageDigest.getInstance("MD5");
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md.update(str.getBytes(charset));
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byte[] result = md.digest();
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StringBuilder sb = new StringBuilder(32);
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for (byte aResult : result) {
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int val = aResult & 0xff;
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if (val <= 0xf) {
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sb.append("0");
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}
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sb.append(Integer.toHexString(val));
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}
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return sb.toString().toLowerCase();
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}
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/**
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* base64编码
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*
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* @param str 内容
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* @param charset 编码方式
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* @throws UnsupportedEncodingException
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*/
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private static String base64(String str, String charset) throws UnsupportedEncodingException {
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return base64Encode(str.getBytes(charset));
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}
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private static String base64Encode(byte[] data) {
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StringBuilder sb = new StringBuilder();
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int len = data.length;
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int i = 0;
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int b1, b2, b3;
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while (i < len) {
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b1 = data[i++] & 0xff;
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if (i == len) {
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sb.append(base64EncodeChars[b1 >>> 2]);
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sb.append(base64EncodeChars[(b1 & 0x3) << 4]);
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sb.append("==");
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break;
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}
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b2 = data[i++] & 0xff;
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if (i == len) {
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sb.append(base64EncodeChars[b1 >>> 2]);
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sb.append(base64EncodeChars[((b1 & 0x03) << 4)
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| ((b2 & 0xf0) >>> 4)]);
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sb.append(base64EncodeChars[(b2 & 0x0f) << 2]);
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sb.append("=");
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break;
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}
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b3 = data[i++] & 0xff;
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sb.append(base64EncodeChars[b1 >>> 2]);
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sb.append(base64EncodeChars[((b1 & 0x03) << 4)
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| ((b2 & 0xf0) >>> 4)]);
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sb.append(base64EncodeChars[((b2 & 0x0f) << 2)
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| ((b3 & 0xc0) >>> 6)]);
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sb.append(base64EncodeChars[b3 & 0x3f]);
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}
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return sb.toString();
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}
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}
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