spring4 + log4j2+ slf4j的配置

log4j2的一些配置介绍

log4j2 相比log4j 解决了一些 死锁问题 改进了性能
下来 我直接挂配置留作本人日后参考

1.maven配置

    <properties>
        
        <spring.version>4.3.2.RELEASEspring.version>
        
        <slf4j.version>1.7.21slf4j.version>
        <log4j.version>2.7log4j.version>
        <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
    properties>
    <dependencies>
            <dependency>
            <groupId>javax.servletgroupId>
            <artifactId>javax.servlet-apiartifactId>
            <version>3.1.0version>
        dependency>
        
        
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-coreartifactId>
            <version>${spring.version}version>
        dependency>

        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-webartifactId>
            <version>${spring.version}version>
        dependency>

        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-oxmartifactId>
            <version>${spring.version}version>
        dependency>

        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-txartifactId>
            <version>${spring.version}version>
        dependency>

        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-jdbcartifactId>
            <version>${spring.version}version>
        dependency>

        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-webmvcartifactId>
            <version>${spring.version}version>
        dependency>

        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-context-supportartifactId>
            <version>${spring.version}version>
        dependency>

        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-aopartifactId>
            <version>${spring.version}version>
        dependency>

        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-testartifactId>
            <version>${spring.version}version>
        dependency>
                <dependency>
            <groupId>org.slf4jgroupId>
            <artifactId>slf4j-apiartifactId>
            <version>${slf4j.version}version>
        dependency>
        <dependency>
            <groupId>org.slf4jgroupId>
            <artifactId>jcl-over-slf4jartifactId>
            <version>${slf4j.version}version>
            <scope>runtimescope>
        dependency>
        <dependency>
            <groupId>org.apache.logging.log4jgroupId>
            <artifactId>log4j-apiartifactId>
            <version>${log4j.version}version>
        dependency>
        <dependency>
            <groupId>org.apache.logging.log4jgroupId>
            <artifactId>log4j-coreartifactId>
            <version>${log4j.version}version>
        dependency>
        <dependency>
            <groupId>org.apache.logging.log4jgroupId>
            <artifactId>log4j-slf4j-implartifactId>
            <version>${log4j.version}version>
        dependency>
        <dependency>
            <groupId>org.apache.logging.log4jgroupId>
            <artifactId>log4j-webartifactId>
            <version>${log4j.version}version>
            <scope>runtimescope>
        dependency>
    dependencies>

2.log4j2.xml配置

#这一行我设置为OFF 表示不记录log4j2本身的日志
<configuration status="OFF"> 
    <properties>
        <property name="LOG_HOME">${web:rootDir}/logsproperty>
        <property name="FILE_NAME">likRproperty>
    properties>
    <appenders>
        <Console name="Console" target="SYSTEM_OUT">
        #这ThresholdFilter是个类似拦截器 level 填写日志显示类型
            <ThresholdFilter level="info" onMatch="ACCEPT" onMismatch="DENY"/>
            <PatternLayout pattern="%d{HH:mm:ss.SSS} %-5level %class{36} %L %M - %msg%xEx%n"/>
        Console>
        <File name="Error" fileName="${LOG_HOME}/error.log">
            <ThresholdFilter level="error" onMatch="ACCEPT" onMismatch="DENY"/>
            <PatternLayout pattern="%d{yyyy.MM.dd 'at' HH:mm:ss z} %-5level %class{36} %L %M - %msg%xEx%n"/>
        File>
        <RollingFile name="RollingFile" fileName="${LOG_HOME}/${FILE_NAME}.log"
                     filePattern="${LOG_HOME}/$${date:yyyy-MM}/${FILE_NAME}-%d{MM-dd-yyyy}-%i.log.gz">
            <PatternLayout pattern="%d{yyyy-MM-dd 'at' HH:mm:ss z} %-5level %class{36} %L %M - %msg%xEx%n"/>
            #日志文件最大值 第二天压缩
            <Policies>
                <TimeBasedTriggeringPolicy/>
                <SizeBasedTriggeringPolicy size="10 MB"/>
            Policies>
        RollingFile>
    appenders>
    #root 默认加载
    <loggers>
        <root level="info">
            <appender-ref ref="RollingFile"/>
            <appender-ref ref="Console"/>
            <appender-ref ref="Error" />
        root>
    loggers>
configuration>

3.web.xml配置
注意!! 是log4jConfiguration！！！

    <context-param>
        
        <param-name>log4jConfigurationparam-name>
        <param-value>classpath:conf/log4j2.xmlparam-value>
    context-param>

4.代码中使用
private Logger logger = LoggerFactory.getLogger(getClass());
logger .error(“{}”,Object);

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