Java日志框架-Spring中使用Logback（Spring/Spring MVC）

继上一篇文章http://www.cnblogs.com/EasonJim/p/7800880.html中所集成的是基于Java的普通项目，如果要在Spring和Spring MVC上集成，需要做如下处理：

一、Spring

POM：

        <!-- Logback -->
        <!-- https://mvnrepository.com/artifact/ch.qos.logback/logback-classic -->
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>1.2.3</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/ch.qos.logback/logback-core -->
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-core</artifactId>
            <version>1.2.3</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.logback-extensions/logback-ext-spring -->
        <dependency>
            <groupId>org.logback-extensions</groupId>
            <artifactId>logback-ext-spring</artifactId>
            <version>0.1.4</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.25</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.slf4j/jcl-over-slf4j -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>jcl-over-slf4j</artifactId>
            <version>1.7.25</version>
        </dependency>

其中logback-ext-spring这个JAR包是为了和Spring一起使用。jcl-over-slf4j：commons-logging到slf4j的桥梁

此时不需要设置logback.xml也可以输出日志。

示例工程：https://github.com/easonjim/5_java_example/tree/master/springtest/test22/HelloSpring

二、Spring MVC

POM和上面一样，关键的点在于配置web.xml中的Listen，并且指定一个logback.xml文件

logback.xml：

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <!-- 控制台输出 -->   
    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
       <!-- 日志输出编码 -->  
       <Encoding>UTF-8</Encoding>   
        <layout class="ch.qos.logback.classic.PatternLayout">   
             <!--格式化输出：%d表示日期，%thread表示线程名，%-5level：级别从左显示5个字符宽度%msg：日志消息，%n是换行符--> 
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n   
            </pattern>   
        </layout>   
    </appender>   
    <!-- 日志输出级别 -->
    <root level="INFO">   
        <appender-ref ref="STDOUT" />   
    </root> 
</configuration>

web.xml：

<?xml version="1.0" encoding="UTF-8"?>
<!-- 配置XML模式 -->
<web-app id="WebApp_ID" version="3.1"
         xmlns="http://java.sun.com/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
            xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
                                 http://java.sun.com/xml/ns/javaee/web-app_3_1.xsd">
                                 
    <display-name>Archetype Created Web Application</display-name>
  
    <!-- 配置Servlet，Spring接管 -->
    <servlet>
        <servlet-name>SrpingMVCTest</servlet-name>
            <servlet-class>
               org.springframework.web.servlet.DispatcherServlet
            </servlet-class>
        <load-on-startup>1</load-on-startup>
     </servlet>

    <!-- 配置Servlet，Spring接管 -->
    <servlet-mapping>
        <servlet-name>SrpingMVCTest</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    
    <!-- 添加日志监听器 -->  
    <context-param>  
        <param-name>logbackConfigLocation</param-name>  
        <param-value>classpath:logback.xml</param-value>  
    </context-param>  
    <listener>  
        <listener-class>ch.qos.logback.ext.spring.web.LogbackConfigListener</listener-class>  
    </listener> 
  
</web-app>

配置完之后就可以输出日志。

实例工程：https://github.com/easonjim/5_java_example/tree/master/springmvc/tutorialspoint/test34/test1

参考：

http://blog.csdn.net/evankaka/article/details/50637994