spring 使用logback

	compile group: 'ch.qos.logback', name: 'logback-classic', version: '1.1.3'
	compile group: 'org.logback-extensions', name: 'logback-ext-spring', version: '0.1.2'
	compile group: 'org.slf4j', name: 'jcl-over-slf4j', version: '1.7.12'
        configurations {
            //compile.exclude module: 'commons-logging'
        }	

		<dependency>
			<groupId>ch.qos.logback</groupId>
			<artifactId>logback-classic</artifactId>
			<version>1.1.3</version>
		</dependency>
		<dependency>
			<groupId>org.logback-extensions</groupId>
			<artifactId>logback-ext-spring</artifactId>
			<version>0.1.2</version>
		</dependency>
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>jcl-over-slf4j</artifactId>
			<version>1.7.12</version>
		</dependency>

	<context-param>
		<param-name>logbackConfigLocation</param-name>
		<param-value>/WEB-INF/config/logback3.xml</param-value>
	</context-param>

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
	<timestamp key="bySecond" datePattern="yyyyMMdd"/>
	<appender name="FILE" class="ch.qos.logback.core.FileAppender">
		<file>${catalina.base}/logs/weblearn/weblearn3-${bySecond}.log</file>
		<encoder><!-- 必须指定，否则不会往文件输出内容 -->
			<pattern>%date %level %thread %10logger %file %line %msg %n</pattern>
		</encoder>
		<append>true</append>
		<prudent>false</prudent>
	</appender>

	<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
		<!-- encoders are assigned the type ch.qos.logback.classic.encoder.PatternLayoutEncoder 
			by default -->
		<encoder>
			<!-- <pattern>%-4relative [%thread] %-5level %logger{35} - %msg %n</pattern> -->
			<pattern>%date %level %thread %10logger %file %line %msg %n</pattern>
		</encoder>
	</appender>
	
	<root level="DEBUG">
		<appender-ref ref="FILE" />
		<appender-ref ref="STDOUT" />
	</root>
</configuration>

package com.example.weblearn3.controller;

import java.io.PrintWriter;
import java.io.StringWriter;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;



@Controller
@RequestMapping({"/", "/homepage","index.html"})
public class HomeController {
	
	private Logger logger = LoggerFactory.getLogger(HomeController.class);
	
	@RequestMapping(method = RequestMethod.GET)
	public String home() {
		
        try {
            int a = 1/0;
        }catch (Exception e){
            StringWriter sw = new StringWriter();
            PrintWriter pw = new PrintWriter(sw);
            e.printStackTrace(pw);
            logger.error("Main错误：" + sw.toString());
        }
		System.out.println("home");
		return "home";
	}
	
}