前言碎语
当系统的并发比较高的时候,日志的处理输出也是一种性能的开销负担,所以,选择一个中间件来处理消费日志必不可少!下面是spring boot整合log4j2结合spring amqp来消费处理系统日志的实例,只需要简单的三步
1.添加相关jar依赖
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-amqp</artifactId> <exclusions> <exclusion> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-logging</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-log4j2</artifactId> </dependency>2.系统log4j2.xml配置,如果需要跨系统处理日志,拷贝一份log4j2.xml到处理日志的系统
<?xml version="1.0" encoding="UTF-8"?> <Configuration> <Appenders> <Console name="STDOUT" target="SYSTEM_OUT"> <PatternLayout pattern="%m%n" /> </Console> <RabbitMQ name="rabbitmq" addresses="localhost:5672" user="guest" password="guest" virtualHost="/" exchange="log4j2Sample" applicationId="log4j2SampleAppId" routingKeyPattern="%X{applicationId}.%c.%p" contentType="text/plain" contentEncoding="UTF-8" generateId="false" deliveryMode="PERSISTENT" charset="UTF-8" senderPoolSize="3" maxSenderRetries="5"> </RabbitMQ> </Appenders> <Loggers> <Logger name="org.springframework.amqp.samples.log4j2" level="info"> <AppenderRef ref="rabbitmq" /> </Logger> <Root> <AppenderRef ref="STDOUT" /> </Root> </Loggers> </Configuration>3.添加处理日志的消息监听,请将以下代码置于spring context上下文环境中
@RabbitListener(bindings = @QueueBinding( exchange = @Exchange(value = "log4j2Sample", type = ExchangeTypes.FANOUT), value = @org.springframework.amqp.rabbit.annotation.Queue)) public void echoLogs(String logMessage) { System.out.println("在这里处理消费你的日志信息" + logMessage); }更多spring amqp的应用,请参考spring amqp官方参考文档:http://docs.spring.io/spring-amqp/docs