springboot中拋出異常，springboot自帶的是springmvc框架，這個就不多說了。
springmvc統一異常解決方法這里要說明的是。只是結合了springboot的使用而已。直接上代碼，有效有用的才是ok。
1.定義異常捕獲
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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 定義全局異常處理 * @RestControllerAdvice 是@controlleradvice 與@ResponseBody 的組合注解 */@RestControllerAdvicepublic 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.定義一個返回對象
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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.定義一個啟動Application
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package com.example;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.web.servlet.config.annotation.EnableWebMvc;@SpringBootApplication@EnableWebMvcpublic class SpringBootExceptionHandlingApplication { public static void main(String[] args) { SpringApplication.run(SpringBootExceptionHandlingApplication.class, args); }} |
4.最后一個測試類
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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不能為空!"); throw new ConstraintViolationException("error", Collections.emptySet()); }} |
注意application.properties這個文件的配置
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spring.mvc.throw-exception-if-no-handler-found=true |
ok，springboot中解決springmvc異常拋出就可以這樣解決了。
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持服務器之家。
