在springboot中springmvc出現(xiàn)拋出全局異常如何解決？很多新手對此不是很清楚，為了幫助大家解決這個難題，下面小編將為大家詳細講解，有這方面需求的人可以來學(xué)習(xí)下，希望你能有所收獲。
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springboot中拋出異常，springboot自帶的是springmvc框架，這個就不多說了。
springmvc統(tǒng)一異常解決方法這里要說明的是。只是結(jié)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
*/
@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.定義一個返回對象
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.定義一個啟動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.最后一個測試類
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不能為空!");
throw new ConstraintViolationException("error", Collections.emptySet());
}
}注意application.properties這個文件的配置
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。
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