U1/blog-api/src/main/java/com/mszlu/blog/handler/AllExceptionHandler.java

package com.mszlu.blog.handler;

import com.mszlu.blog.vo.Result;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;

//对加了@Controller注解的方法进行拦截处理 AOP实现
@ControllerAdvice
public class AllExceptionHandler {
    //进行异常处理，处理Exception。class的异常
    @ExceptionHandler(Exception.class)
    @ResponseBody  //返回json数据
    public Result doException(Exception ex){
        ex.printStackTrace();
        return Result.fail(-999,"system error");
    }
}