我無法重現您的結果,但也許通過澄清一些事情可以更接近您的問題.

如果我在我的機器上執行你的curl命令(帶有一個額外的-v標志來獲取標題),我會收到一個客戶端錯誤,確切地說是409 Conflict.

curl -v -H "Content-Type: application/json" -X POST -d '{}' http://localhost:8080/api/hotels

Note: Unnecessary use of -X or --request, POST is already inferred.

* Trying 127.0.0.1...

* Connected to localhost (127.0.0.1) port 8080 (#0)

> POST /api/hotels HTTP/1.1

> Host: localhost:8080

> User-Agent: curl/7.47.0

> Accept: */*

> Content-Type: application/json

> Content-Length: 2

>

* upload completely sent off: 2 out of 2 bytes

< HTTP/1.1 409 Conflict

< Date: Sun, 22 Jan 2017 12:29:45 GMT

< Content-Type: application/hal+json;charset=UTF-8

< Transfer-Encoding: chunked

<

* Connection #0 to host localhost left intact

{"cause":{"cause":{"cause":null,"message":"NULL not allowed for column \"ADDRESS\"; SQL statement:\ninsert into hotel (id, address, city_id, name, zip) values (null, ?, ?, ?, ?) [23502-193]"},"message":"could not execute statement"},"message":"could not execute statement; SQL [n/a]; constraint [null]; nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement"}

在我的IDE(STS)中執行測試也是如此：

java.lang.AssertionError: Range for response status value 409 expected: but was:

at org.springframework.test.util.AssertionErrors.fail(AssertionErrors.java:54)

at org.springframework.test.util.AssertionErrors.assertEquals(AssertionErrors.java:81)

at org.springframework.test.web.servlet.result.StatusResultMatchers$7.match(StatusResultMatchers.java:132)

at org.springframework.test.web.servlet.MockMvc$1.andExpect(MockMvc.java:171)

...

因此,首先測試和正在運行的應用程序之間沒有區別,DataIntegrityViolationException / ConstraintViolationException在兩種情況下都映射到409.

如果這是正確的另一個問題,但可能發送錯誤/無效數據實際上是客戶端錯誤.

如果您仍想更改它,則必須以這樣的方式添加自己的ExceptionHandler：

import org.hibernate.exception.ConstraintViolationException;

import org.springframework.http.HttpHeaders;

import org.springframework.http.HttpStatus;

import org.springframework.http.ResponseEntity;

import org.springframework.web.bind.annotation.ExceptionHandler;

import org.springframework.web.bind.annotation.RestControllerAdvice;

import org.springframework.web.context.request.WebRequest;

import org.springframework.web.servlet.mvc.method.annotation.ResponseEntityExceptionHandler;

@RestControllerAdvice

public class ConstraintViolationExceptionHandler extends ResponseEntityExceptionHandler {

@ExceptionHandler({ ConstraintViolationException.class })

public ResponseEntity handleConstraintViolationException(Exception ex, WebRequest request) {

return handleExceptionInternal(ex, "I think it's the servers fault!", new HttpHeaders(), HttpStatus.INTERNAL_SERVER_ERROR, request);

}

}

也許這可以解決你的問題,resp.給你一個提示.或者還有另一個我沒有得到的問題？

總結

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