版权声明:帅气Dee海绵宝宝 https://blog.csdn.net/xyjcfucdi128/article/details/84023757
1.log4j
成员变量
//LoginHanderInterceptor 类的名称
private static Logger log=LoggerFactory.getLogger(LoginHanderInterceptor.class);
引用方式(在控制台就可以直接输出 出来log4j)
log.info("log4j");
2.logback
logback是Spring Boot默认的日志系统,假如对日志没有特殊要求,可以完全零配置使用 SLF4J(Simple Logging Facade For Java)的logback来输出日志。
package com.jianeye.test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
SpringBootApplication
public class TestApplication {
private static Logger logger = LoggerFactory.getLogger(TestApplication.class);
public static void main(String[] args) {
logger.warn("logback --------------------------------\n");
SpringApplication.run(TestApplication.class, args);
logger.info("default log system *************************\n");
}
}