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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
|
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
|
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());
}
}
|
注意application.properties这个文件的配置
1
|
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服务器之家。