springboot整合日志处理Logback的实现示例

logging:
  level:
    root: debug #指定根日志级别(一般不推荐修改根日志,输出信息太多,推荐使用子日志)
    com.demo.dao: debug #指定某个包中日志
  file:
    name: run.log #指定日志名称
    path: ./  #指定日志文件目录

@Controller
public class HelloController {
    //声明日志成员
    private static final Logger log = LoggerFactory.getLogger(HelloController.class);
    @RequestMapping("/hello")
    @ResponseBody
    public String hello(){
        System.out.println("======hello world=======");
        logger.debug("DEBUG,{}","信息");
        logger.info("INFO,{}","信息");
        logger.warn("WARN,{}","信息");
        logger.error("ERROR,{}","信息");
        return "hello";
    }
}

public class StudentService {
    private static final Logger log = LoggerFactory.getLogger(StudentService.class);
    @Autowired
    private StudentMapper studentMapper;
    public List<Student> findAll() {
        return studentMapper.findAll();
    }
    public void  save(Student student){
        studentMapper.save(student);
        log.debug("个人信息"+student.toString());
    }
}