springboot中动态切换日志输出级别

最新推荐文章于 2024-03-08 17:00:35 发布

原创最新推荐文章于 2024-03-08 17:00:35 发布 · 1k 阅读

2 ·

CC 4.0 BY-SA版权

文章标签：

#logback #actuator #springboot

springboot 专栏收录该内容

29 篇文章

订阅专栏

springboot中动态切换log日志级别 (依靠actuator监控组件)
1、pom.xml配置

<dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-actuator</artifactId>
      <version>2.1.7.RELEASE</version>
    </dependency>
   
   <!-- 可选-->
  <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <optional>true</optional>
    </dependency>

2、application.yml配置

server:
  port: 8082
  servlet:
    context-path: /
 
 
 
#管理端点
management:
  #server:
  #  port: 7001
  #  address: 127.0.0.1
  endpoint:
    shutdown:
      enabled: true
  endpoints:
    web:
      base-path: /actuator
      exposure:
        #include:   "*" #loggers
        include:
          - info
          - health
          - loggers
          - mappings
          - beans
          - env
          - shutdown
 
 
logging:
  level:
    root: INFO
    org.springframework.web: INFO
    org.springframework.jdbc: INFO
    com.tingcream: INFO  #项目包日志级别
  file: /log/logdemo/logdemo.log

3、项目中代码中记录日志

import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
import org.springframework.context.annotation.EnableAspectJAutoProxy;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
  
@RestController
@EnableAspectJAutoProxy(exposeProxy=true,proxyTargetClass=true)
@SpringBootApplication
@Slf4j
public class LogDemoApplication extends SpringBootServletInitializer {
 
    public static void main(String[] args) {
        SpringApplication.run(LogDemoApplication.class, args);
    }
 
    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(LogDemoApplication.class);
    }
 
 
    @RequestMapping("/")
    public String index(){
        log.info("这是一条info级别日志");
        log.debug("这是一条debug级别日志");
        return "hello springboot!";
    }
 
}

启动springboot项目后，访问 http://localhost:8082/ 发现只输出了一条info级别的日志。
curl -X GET http://192.168.0.14:8082/actuator/loggers/com.tingcream
发现com.tingcream 的日志level配置的是info，所以debug级别的日志才没有输出过来

现在，我们使用curl 命令将com.tingcream包的日志level修改为debug
curl -X POST http://192.168.0.14:8082/actuator/loggers/com.tingcream -H "Content-type: application/json" -d "{\"configuredLevel\":\"DEBUG\"}"

再次请求首页，发现info和debug级别的日志都输出来了。。

附，actuator常用的端点：
http://localhost:8082/actuator/health #健康
http://localhost:8082/actuator/info #信息获取的是application.yml中的info节点的信息，如info.app.name=xxx
http://localhost:8082/actuator/beans #spring容器中的bean
http://localhost:8082/actuator/env #环境变量
http://localhost:8082/actuator/metrics #指标
http://localhost:8082/actuator/mappings # controller层请求映射
http://localhost:8082/actuator/configprops # application.yml中的配置属性
优雅停机
curl -X POST http://localhost:8082/actuator/shutdown