Java REST POST 与 POSTMAN 一起正常工作,但在使用 Spring RestTemplate 时出现异常

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时间:2020-08-11 19:13:12  来源:igfitidea点击:

REST POST works correctly with POSTMAN but exception when using Spring RestTemplate

javaspringrestresttemplatespring-rest

提问by Rehan

I am writing a Rest client to post JSON data using Spring RestTemplate. Using POSTMAN and following JSON data in body get the response correctly-

我正在编写一个 Rest 客户端来使用 Spring RestTemplate 发布 JSON 数据。使用 POSTMAN 并在正文中遵循 JSON 数据可正确获得响应-

{
    "InCode":"test",
    "Name":"This is  test",
    "Email":"[email protected]",
    "Id":18,
}

However when trying to hit the REST API using Spring RestTemplate as follows

但是,当尝试使用 Spring RestTemplate 访问 REST API 时,如下所示

ResponseEntity<String> response = restTemplate.exchange(baseUrl,
                HttpMethod.POST, getHeaders(), String.class);

private HttpEntity<?> getHeaders() throws JSONException {
JSONObject request = new JSONObject();
        request.put("Email", "[email protected]");
        request.put("Id", "18");
        request.put("Name", "This is  test");
        request.put("InCode", "test");

        headers.set("Accept", MediaType.APPLICATION_JSON_VALUE);
        return new HttpEntity<>(request.toString(), headers);
        }

I get the exception-

我得到了例外-

11:52:56.808 [main] DEBUG o.s.web.client.RestTemplate - Created POST request for "http://server-test/platform/v4/org"
11:52:56.815 [main] DEBUG o.s.web.client.RestTemplate - Setting request Accept header to [text/plain, application/json, application/*+json, */*]
12:03:47.357 [main] DEBUG o.s.web.client.RestTemplate - Writing [{"InCode":"test","Email":"[email protected]","Id":"18","Name":"This is  test"}] using [org.springframework.http.converter.StringHttpMessageConverter@6a1aab78]
11:52:57.574 [main] DEBUG o.s.web.client.RestTemplate - POST request for "http://server-test/platform/v4/org" resulted in 500 (Internal Server Error); invoking error handler
Exception in thread "main" org.springframework.web.client.HttpServerErrorException: 500 Internal Server Error
    at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:94)
    at org.springframework.web.client.RestTemplate.handleResponse(RestTemplate.java:641)
    at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:597)
    at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:557)
    at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:475)

Would be thankful for any help.

将不胜感激任何帮助。

回答by Stefan Isele - prefabware.com

You are setting the 'Accept' header, which defines which content type you will accept as a response.

您正在设置“接受”标头,它定义您将接受哪种内容类型作为响应。

Instead you must set the header 'Content-Type' with 'application/json'.

相反,您必须使用“application/json”设置标题“Content-Type”。

Edit:

编辑:

In your java code id is a string, in the postman its a number. May be this makes the server fail?

在您的 java 代码中 id 是一个字符串,在邮递员中它是一个数字。可能这会使服务器失败?