使用log4j记录日志

Chapter4-2-2/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+
+	<groupId>com.didispace</groupId>
+	<artifactId>Chapter4-2-2</artifactId>
+	<version>1.0.0</version>
+	<packaging>jar</packaging>
+
+	<name>Chapter4-2-2</name>
+	<description>Spring Boot project</description>
+
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>1.3.2.RELEASE</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<java.version>1.8</java.version>
+	</properties>
+
+	<dependencies>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter</artifactId>
+			<exclusions>
+				<exclusion>
+					<groupId>org.springframework.boot</groupId>
+					<artifactId>spring-boot-starter-logging</artifactId>
+				</exclusion>
+			</exclusions>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-log4j</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+
+
+	</dependencies>
+	
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>

Chapter4-2-2/src/main/java/com/didispace/Application.java

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+package com.didispace;
+
+import org.apache.log4j.Logger;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.scheduling.annotation.EnableAsync;
+import org.springframework.scheduling.annotation.EnableScheduling;
+
+@SpringBootApplication
+public class Application {
+
+	public static void main(String[] args) {
+		SpringApplication.run(Application.class, args);
+	}
+
+}

Chapter4-2-2/src/main/resources/log4j.properties

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+# LOG4J配置
+log4j.rootCategory=INFO, stdout, file, errorfile
+log4j.category.com.didispace=DEBUG, didifile
+log4j.logger.error=errorfile
+
+# 控制台输出
+log4j.appender.stdout=org.apache.log4j.ConsoleAppender
+log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
+log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %5p %c{1}:%L - %m%n
+
+# root日志输出
+log4j.appender.file=org.apache.log4j.DailyRollingFileAppender
+log4j.appender.file.file=logs/all.log
+log4j.appender.file.DatePattern='.'yyyy-MM-dd
+log4j.appender.file.layout=org.apache.log4j.PatternLayout
+log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %5p %c{1}:%L - %m%n
+
+# error日志输出
+log4j.appender.errorfile=org.apache.log4j.DailyRollingFileAppender
+log4j.appender.errorfile.file=logs/error.log
+log4j.appender.errorfile.DatePattern='.'yyyy-MM-dd
+log4j.appender.errorfile.Threshold = ERROR
+log4j.appender.errorfile.layout=org.apache.log4j.PatternLayout
+log4j.appender.errorfile.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %5p %c{1}:%L - %m%n
+
+# com.didispace下的日志输出
+log4j.appender.didifile=org.apache.log4j.DailyRollingFileAppender
+log4j.appender.didifile.file=logs/my.log
+log4j.appender.didifile.DatePattern='.'yyyy-MM-dd
+log4j.appender.didifile.layout=org.apache.log4j.PatternLayout
+log4j.appender.didifile.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %5p %c{1}:%L ---- %m%n
+
+
+
+
+

Chapter4-2-2/src/test/java/com/didispace/ApplicationTests.java

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+package com.didispace;
+
+import org.apache.log4j.Logger;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.SpringApplicationConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@SpringApplicationConfiguration(classes = Application.class)
+public class ApplicationTests {
+
+	private Logger logger = Logger.getLogger(getClass());
+
+	@Test
+	public void test() throws Exception {
+		logger.info("输出info");
+		logger.debug("输出debug");
+		logger.error("输出error");
+	}
+
+}