springboot springmvc抛出全局异常的解决方法

springboot springmvc抛出全局异常的解决方法

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;

/**

* @auhttp://thor 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());

}

}

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。

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