log4j简单demo

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pom.xml

 <dependency>
          <groupId>org.slf4j</groupId>
          <artifactId>slf4j-api</artifactId>
          <version>1.6.6</version>
      </dependency>
      <dependency>
          <groupId>org.slf4j</groupId>
          <artifactId>slf4j-log4j12</artifactId>
          <version>1.6.6</version>
      </dependency>
      <dependency>
          <groupId>log4j</groupId>
          <artifactId>log4j</artifactId>
          <version>1.2.16</version>
      </dependency>

log4j.properties

#可以设置级别：debug>info>error
#debug：显示debug、info、error
#info：显示info、error
#error：只error
#log4j.rootLogger=debug,appender1
log4j.rootLogger=info,appender1
#log4j.rootLogger=error,appender1

#输出到控制台
log4j.appender.appender1=org.apache.log4j.ConsoleAppender
#样式为TTCCLayout
log4j.appender.appender1.layout=org.apache.log4j.TTCCLayout

LoginControl.java

public class LoginControl {

    private static Logger logger = Logger.getLogger(LoginControl.class);

    public void ProtocolReceiver() {

        logger.debug("This is debug message.");
        logger.info("This is info message.");
        logger.error("This is error message.");

	}
}

log4j简单demo

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原文地址：http://blog.csdn.net/iamgongqinghua/article/details/43670745