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springboot springmvc抛出全局异常的解决方法

2024-07-13 10:09:23
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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 */@RestControllerpublic 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()); }}

注意application.properties这个文件的配置

spring.mvc.throw-exception-if-no-handler-found=true 

ok,springboot中解决springmvc异常抛出就可以这样解决了。

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持VeVb武林网。


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