eclipse通过maven建立java se工程配置log4j，打包成zip，将jar包和配置文件分开，并以bat和sh文件启动java程序
一.新建maven的java工程
1.eclipse里file-new-other，选择maven Project
2.选中 Use default Workspace location,然后 next
3.选择maven-archetype-quitstart,然后next
4.填入工程信息，然后finish
6.新建好的工程结构如图
7.将test下和java下自动生成的java类删除，右键build-path选择好jdk版本，整个工程就建好了。
二.配置log4j
1.将工程目录调整成下图（这步其实是为下面maven打包做准备）
2.通过maven导入log4j,jar
在pom.xml的<dependencies>里加入以下语句
<dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.6.0</version> </dependency>
3.在src/conf下面新建文件log4j.properties，内容如下：
### 设置###
log4j.rootLogger = debug,stdout,D,E
### 输出信息到控制台###
log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target = System.out
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n
### 输出debug级别以上的日志到E://logs/log.log ###
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = E://logs/log.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = DEBUG
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
### 输出error级别以上的日志到E://logs/error.log ###
log4j.appender.E = org.apache.log4j.DailyRollingFileAppender
log4j.appender.E.File =E://logs/error.log
log4j.appender.E.Append = true
log4j.appender.E.Threshold = ERROR
log4j.appender.E.layout = org.apache.log4j.PatternLayout
log4j.appender.E.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
4.新建日志测试类，内容如下：
package com.zhuzhixi.zhuzhixiDataMaker.Test;
import org.apache.log4j.Logger;
public class LogTest {
private static Logger logger = Logger.getLogger(LogTest.class);
public static void main(String[] args) {
// TODO Auto-generated method stub
// 记录debug级别的信息
logger.debug("This is debug message.");
// 记录info级别的信息
logger.info("This is info message.");
// 记录error级别的信息
logger.error("This is error message.");
}
}
5.结果如下：
5.1在控制台打出如下信息
5.2在e盘的logs文件夹下出现两个文件
内容分别如下：
三.配置maven-assembly-plugin并打包
1.在pon.xml里面更改为下面的内容（工程项目的文件结构在上面)
<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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.zhuzhixi</groupId> <artifactId>zhuzhixiDataMaker</artifactId> <packaging>jar</packaging> <version>0.0.1-SNAPSHOT</version> <description></description> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <!-- log4j日志 --> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.6.0</version> </dependency> </dependencies> <build> <resources> <resource> <directory>src/main/conf</directory> </resource> <resource> <directory>src/main/resources</directory> </resource> </resources> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-resources-plugin</artifactId> <version>2.7</version> <configuration> <encoding>UTF-8</encoding> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-assembly-plugin</artifactId> <version>2.5.5</version> <configuration> <encoding>UTF-8</encoding> <appendAssemblyId>false</appendAssemblyId> <descriptors> <descriptor>src/main/assemble/package.xml</descriptor> </descriptors> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.3</version> <configuration> <source>1.8</source> <target>1.8</target> <verbose>true</verbose> </configuration> </plugin> </plugins> </build> </project>
2.src/main/assemble目录下的package.xml内容为：
<assembly 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/assembly-1.0.0.xsd">
<id>package</id>
<formats>
<format>zip</format>
</formats>
<includeBaseDirectory>true</includeBaseDirectory>
<fileSets>
<fileSet>
<directory>src/main/bin</directory>
<outputDirectory>bin</outputDirectory>
</fileSet>
<fileSet>
<directory>src/main/conf</directory>
<outputDirectory>conf</outputDirectory>
</fileSet>
<fileSet>
<directory>src/main/logs</directory>
<outputDirectory>logs</outputDirectory>
</fileSet>
<fileSet>
<directory>src/main/work</directory>
<outputDirectory>work</outputDirectory>
</fileSet>
</fileSets>
<dependencySets>
<dependencySet>
<outputDirectory>lib</outputDirectory>
<scope>runtime</scope>
</dependencySet>
</dependencySets>
</assembly>
3.在src/main/bin下面新建文件start.bat和start.sh两个文件，用于windows和linux里启动java程序
start.bat的内容如下：
@echo off SET base=%~dp0 SET main_class="com.zhuzhixi.zhuzhixiDataMaker.Test.LogTest" SET conf=%base%..\conf SET libs=%base%..\lib SET class_path=%conf%;%libs%\*; java -classpath %class_path% %main_class% @pause
start.sh的内容如下：
#!/bin/bash
script_path=$(cd "$(dirname "$0")"; pwd)
lib_path=${script_path}/../lib
main_class="com.zhuzhixi.zhuzhixiDataMaker.Test.LogTest"
conf_path=${script_path}/../etc/conf
CLASSPATH="${conf_path}"
for jar in $lib_path/*.jar
do
if [ "$CLASSPATH" = "" ] ; then
CLASSPATH=$jar
else
CLASSPATH=$CLASSPATH:$jar
fi
done
export CLASSPATH=$CLASSPATH
echo "java ${main_class} \"$@\""
4.右键工程-Debug As-maven assembly:assembly
输出日志如下图则打包成功。
四.测试
1.解压zip文件，文件夹结构如下，所有文件均存在：
2.进入bin，运行start.bat（运行环境需要安装jre环境）
3.结果如下：
在e盘的logs文件夹下
log.log内容如下：
error.log内容如下
因此，conf的log4j.properties正确被读取了。
五.将log4j的日志位置设为动态，即打包后的文件夹里的logs文件夹
1.将log4j.properties改为一下内容，（将日志位置用${log4j.home}代替）
### \u8BBE\u7F6E###
log4j.rootLogger = debug,stdout,D,E
### 设置 ###
log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target = System.out
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n
### 设置debug级别以上的日志到logs/error.log ###
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = ${log4j.home}/log.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = DEBUG
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
### 设置error级别以上的日志到logs/error.log ###
log4j.appender.E = org.apache.log4j.DailyRollingFileAppender
log4j.appender.E.File =${log4j.home}/error.log
log4j.appender.E.Append = true
log4j.appender.E.Threshold = ERROR
log4j.appender.E.layout = org.apache.log4j.PatternLayout
log4j.appender.E.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
2.主类不再是LogTest.java ，新建一个类LogTestMain.java，内容如下：
package com.zhuzhixi.zhuzhixiDataMaker.Test;
import org.apache.log4j.Logger;
public class LogTestMain {
public static void main(String[] args) {
// TODO Auto-generated method stub
String binPath=System.getProperty("user.dir") ;
System.out.println(binPath+"\\..\\logs");
System.setProperty("log4j.home", binPath+"\\..\\logs");
String log4jHome=System.getProperty("log4j.home");
System.out.println(log4jHome);
new LogTest().testLog();
}
}
2.将LogTest.java的内容改成下面：
package com.zhuzhixi.zhuzhixiDataMaker.Test;
import org.apache.log4j.Logger;
public class LogTest {
private static Logger logger = Logger.getLogger(LogTest.class);
public void testLog(){
// 记录debug级别的信息
logger.debug("This is debug message.");
// 记录info级别的信息
logger.info("This is info message.");
// 记录error级别的信息
logger.error("This is error message.");
}
}
3.然后更改start.bat的main_class为com.zhuzhixi.zhuzhixiDataMaker.Test.LogTestMain
@echo off SET base=%~dp0 SET main_class="com.zhuzhixi.zhuzhixiDataMaker.Test.LogTestMain" SET conf=%base%..\conf SET libs=%base%..\lib SET class_path=%conf%;%libs%\*; java -classpath %class_path% %main_class% @pause
4.此时再打包后运行start.bat，日志文件就会在打包后的logs文件夹里了。
注意：一定要在执行Logger.getLogger(LogTestMain.class);之前执行System.getProperty("log4j.home");，所以主类不能使用log打印日志
