Spring中@ExceptionHandler注解的使用方式

package com.example.exceptionhandlerdemo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class ExceptionhandlerdemoApplication {
    public static void main(String[] args) {
        SpringApplication.run(ExceptionhandlerdemoApplication.class, args);
    }
}

package com.example.exceptionhandlerdemo;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;
@RestControllerAdvice
public class GlobalExceptionHandler {
    private final Logger logger = LogManager.getLogger(GlobalExceptionHandler.class);
    @ExceptionHandler({Exception.class})    //申明捕获那个异常类
    public String ExceptionDemo(Exception e) {
        logger.error(e.getMessage(), e);
        return "自定义异常返回";
    }
}

package com.example.exceptionhandlerdemo;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
@Controller
@RequestMapping("/yu")
public class TestControll {
    private Logger logger = LoggerFactory.getLogger(getClass());
    @Autowired
    private UserInfoSerimpl userInfoSerimpl;
    @ResponseBody
    @RequestMapping("/test")
    public String test(){
        logger.info("11111111111");
        userInfoSerimpl.saveUserInfo();
        logger.info("2222222222");
        return "sdfsfs";
    }
}

package com.example.exceptionhandlerdemo;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
@Service("userInfoService")
public class UserInfoSerimpl {
    private Logger logger = LoggerFactory.getLogger(UserInfoSerimpl.class);
    public void saveUserInfo() {
        logger.error("获取用户信息失败");
        test1();
        logger.info("ddddddddd");
    }
    private void test1(){
        logger.error("test1 失败");
        throw new RuntimeException();
    }
}

@ExceptionHandler({RuntimeException.class})    //申明捕获那个异常类
    public String RuntimeExceptionDemo(Exception e) {
        logger.error(e.getMessage(), e);
        return "运行时异常返回";
    }
    @ExceptionHandler({NumberFormatException.class})    //申明捕获那个异常类
    public String NumberFormatExceptionDemo(Exception e) {
        logger.error(e.getMessage(), e);
        return "数字转换异常返回";
    }

    private void test1(){
        logger.error("test1 失败");
        	String a = "123a";
        	Integer b = Integer.valueOf(a);
        throw new RuntimeException();
    }