springboot springmvc抛出全局异常的解决方法_Java教程

springboot springmvc抛出全局异常的解决方法

2020-11-25 10:46全力以赴001 Java教程

这篇文章主要为大家详细介绍了springboot springmvc抛出全局异常的解决方法，具有一定的参考价值，感兴趣的小伙伴们可以参考一下

springboot中抛出异常，springboot自带的是springmvc框架，这个就不多说了。

springmvc统一异常解决方法这里要说明的是。只是结合了springboot的使用而已。直接上代码，有效有用的才是ok。

1.定义异常捕获

									package com.example.rest.error;

									import org.springframework.http.HttpStatus;

									import org.springframework.web.bind.annotation.ExceptionHandler;

									import org.springframework.web.bind.annotation.ResponseStatus;

									import org.springframework.web.bind.annotation.RestControllerAdvice;

									import org.springframework.web.servlet.NoHandlerFoundException;

									import javax.validation.ConstraintViolationException;

									/**

									 *

									 * @author ming 定义全局异常处理

									 * @RestControllerAdvice 是@controlleradvice 与@ResponseBody 的组合注解

									 */

									@RestControllerAdvice

									public class GlobalControllerExceptionHandler {

									 @ExceptionHandler(value = { ConstraintViolationException.class })

									 @ResponseStatus(HttpStatus.BAD_REQUEST)

									 public ApiErrorResponse constraintViolationException(ConstraintViolationException ex) {

									  return new ApiErrorResponse(500, 5001, ex.getMessage());

									 }

									 @ExceptionHandler(value = { IllegalArgumentException.class })

									 @ResponseStatus(HttpStatus.BAD_REQUEST)

									 public ApiErrorResponse IllegalArgumentException(IllegalArgumentException ex) {

									  return new ApiErrorResponse(501, 5002, ex.getMessage());

									 }

									 @ExceptionHandler(value = { NoHandlerFoundException.class })

									 @ResponseStatus(HttpStatus.NOT_FOUND)

									 public ApiErrorResponse noHandlerFoundException(Exception ex) {

									  return new ApiErrorResponse(404, 4041, ex.getMessage());

									 }

									 @ExceptionHandler(value = { Exception.class })

									 @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)

									 public ApiErrorResponse unknownException(Exception ex) {

									  return new ApiErrorResponse(500, 5002, ex.getMessage());

									 }

									}

2.定义一个返回对象

									package com.example.rest.error;

									/**

									 * @author ming

									 */

									public class ApiErrorResponse {

									 private int status;

									 private int code;

									 private String message;

									 public ApiErrorResponse(int status, int code, String message) {

									  this.status = status;

									  this.code = code;

									  this.message = message;

									 }

									 public int getStatus() {

									  return status;

									 }

									 public int getCode() {

									  return code;

									 }

									 public String getMessage() {

									  return message;

									 }

									 @Override

									 public String toString() {

									  return "ApiErrorResponse{" +

									    "status=" + status +

									    ", code=" + code +

									    ", message=" + message +

									    '}';

									 }

									}

3.定义一个启动Application

									package com.example;

									import org.springframework.boot.SpringApplication;

									import org.springframework.boot.autoconfigure.SpringBootApplication;

									import org.springframework.web.servlet.config.annotation.EnableWebMvc;

									@SpringBootApplication

									@EnableWebMvc

									public class SpringBootExceptionHandlingApplication {

									 public static void main(String[] args) {

									  SpringApplication.run(SpringBootExceptionHandlingApplication.class, args);

									 }

									}

4.最后一个测试类

									package com.example.rest.controller;

									import org.springframework.http.MediaType;

									import org.springframework.util.Assert;

									import org.springframework.web.bind.annotation.GetMapping;

									import org.springframework.web.bind.annotation.RestController;

									import javax.validation.ConstraintViolationException;

									import java.util.Collections;

									/**

									 * @author ming

									 */

									@RestController

									public class TestController {

									 @GetMapping(value = "/test", produces = MediaType.APPLICATION_JSON_VALUE)

									 public void test(Long id) {

									  Assert.notNull(id,"id不能为空!");

									  throw new ConstraintViolationException("error", Collections.emptySet());

									 }

									}