spring-mvc配置log4j

web

• 加入依赖

<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-log4j12 -->
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-log4j12</artifactId>
        <version>1.7.21</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-api</artifactId>
    <version>1.7.21</version>
</dependency>

• 在web.xml里面写入如下配置

<context-param>
    <param-name>log4jConfigLocation</param-name>
    <param-value>classpath:/log4j/log4j.properties</param-value>
</context-param>
<context-param>
    <param-name>log4jRefreshInterval</param-name>
    <param-value>6000</param-value>
</context-param>
<listener>
    <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener> 

根据/log4j/log4j.properties目录建立文件

# log4j.properties

这里一定要注意，路径的斜杠要写成\而不是\，如果不这样写，似乎无法输出！

# debug<info<warn<error  
log4j.rootLogger=debug,CONSOLE,FILE  
#log4j.debug=true  
# CONSOLE is set to be a ConsoleAppender using a PatternLayout.  
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender  
log4j.appender.CONSOLE.Threshold=debug  
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout  
log4j.appender.CONSOLE.layout.ConversionPattern=%d %p [%c] - <%m>%n  
log4j.appender.FILE=org.apache.log4j.RollingFileAppender  
log4j.appender.FILE.File=D:\\log\\error.log
log4j.appender.FILE.MaxFileSize=10000KB  
log4j.appender.FILE.MaxBackupIndex=1000  
log4j.appender.FILE.layout=org.apache.log4j.PatternLayout  
log4j.appender.FILE.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [%c]-[%p] %m%n  
log4j.logger.org.apache.ibatis=ERROR  
log4j.logger.org.apache.ibatis.common.jdbc.SimpleDataSource=ERROR  
log4j.logger.org.apache.ibatis.common.jdbc.ScriptRunner=ERROR  
log4j.logger.org.apache.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=ERROR  
log4j.logger.java.sql.Connection=ERROR  
log4j.logger.java.sql.Statement=ERROR  
log4j.logger.java.sql.PreparedStatement=ERROR
log4j.logger.org.mybatis.spring = ERROR  
log4j.logger.org.springframework=ERROR

• 测试
  # Testlog4j.java

package com.pollux.controller;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import com.pollux.pojo.user;
import com.pollux.service.userservice;
@Controller
public class Testlog4j {
    Logger logger = LoggerFactory.getLogger(Testlog4j.class);
    @Autowired
    private userservice userservice;
    @ResponseBody
    @RequestMapping(value = "/sayhello")
    public String sayhello() {
        logger.debug("log4j success!");
        return "hello Pollux";
    }
}

<!--
2016-07-18 14:39:38,699 DEBUG [com.pollux.controller.Testlog4j] - <log4j success!>
-->