Spring Boot 全局異常配置，處理異常控制器需要和發生異常的方法在一個類中。使用 ControllerAdvice 註解

package com.li.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
 
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class ExceptionHandlerController {
    @RequestMapping("/exceptionTest")
    @ResponseBody
    public String test() throws Exception{
        System.out.println(
 
"測試");
        int i=1/0;
        return Integer.toString(i);
    }
    @ControllerAdvice
    class HandlerException{
        @ExceptionHandler(Exception.class)
        @ResponseBody
        public String defultExcepitonHandler(Exception e) {
    //        return "{\"error\":\"error\"}";
            return
 
 "error";
        }
    }
}

https://blog.csdn.net/qq_34083066/article/details/79424142

Spring Boot 全局異常配置