卷曲不适用于 HTTP Post 到 Spring-data-rest RequestMapping答案

【问题标题】：Curl not working for HTTP Post to Spring-data-rest RequestMapping卷曲不适用于 HTTP Post 到 Spring-data-rest RequestMapping
【发布时间】：2016-06-16 02:54:27
【问题描述】：

我有一个 RequestMapping 春季 @Controller 设置，我无法正确地向它发送 CURL 请求。尝试以各种方式发送时，我不断收到HTTP 400 返回码。我不确定什么设置不正确。

这是请求

curl -v -X POST localhost:8082/api/registerDevice -d '{"serial":"FA541YJ05065"}' -H "Content-Type:application/json;charset=UTF-8"

这是输出

Note: Unnecessary use of -X or --request, POST is already inferred.
*   Trying ::1...
* Connected to localhost (::1) port 8082 (#0)
> POST /api/registerDevice HTTP/1.1
> Host: localhost:8082
> User-Agent: curl/7.49.0
> Accept: */*
> Content-Type:application/json;charset=UTF-8
> Content-Length: 23
>
* upload completely sent off: 23 out of 23 bytes
< HTTP/1.1 400 Bad Request
< Server: Apache-Coyote/1.1
< Content-Type: application/json;charset=UTF-8
< Transfer-Encoding: chunked
< Date: Thu, 16 Jun 2016 02:48:50 GMT
< Connection: close
<
{"timestamp":1466045330556,"status":400,"error":"Bad Request","exception":"org.springframework.http.converter.HttpMessageNotReadableException","message":"Could not read document: Unexpected character (''' (code 39)): expected a valid value (number, String, array, object, 'true', 'false' or 'null')\n at [Source: java.io.PushbackInputStream@3bae0839; line: 1, column: 2]; nested exception is com.fasterxml.jackson.core.JsonParseException: Unexpected character (''' (code 39)): expected a valid value (number, String, array, object, 'true', 'false' or 'null')\n at [Source: java.io.PushbackInputStream@3bae0839; line: 1, column: 2]","path":"/api/registerDevice"}* Closing connection 0

Spring 请求映射

 @RequestMapping(value = "registerDevice", method = RequestMethod.POST)
  public ResponseEntity<String> registerDevice(@RequestBody Map<String, Object> payload) throws Exception {

更新

如下所述，转义引号和与 windows 相关是一个问题。相同的 CURL 命令在 centos 上运行良好。

curl -v -H "Accept: application/json" -H "Content-type: application/json" -X POST -d "{"""serial""":"""FA541YJ05065"""}" http://localhost:8082/api/deregisterDevice

在 Centos 上

curl -v -H "Accept: application/json" -H "Content-type: application/json" -X POST -d '{"serial":"FA541YJ05065"}' http://localhost:8082/api/registerDevice

【问题讨论】：

标签： java spring spring-mvc curl spring-restcontroller

【解决方案1】：

我怀疑你最终会在 json 的开头发送'。您可以尝试在 json 周围使用双引号并将它们转义。 See also

curl -v -X POST localhost:8082/api/registerDevice -d "{\"serial\":\"FA541YJ05065\"}" -H "Content-Type:application/json;charset=UTF-8"

【讨论】：

是的，事实证明问题出在 Windows 上。它在我们的 centos 系统上运行良好，但 windows 要求对数据进行转义。 curl -v -H "接受：应用程序/json" -H "内容类型：应用程序/json" -X POST -d "{"""serial""":"""FA541YJ05065"""}" localhost:8082/api/deregisterDevice在 Centos 上 curl -v -H "Accept: application/json" -H "Content-type: application/json" -X POST -d '{"serial":"FA541YJ05065"}' localhost:8082/api/registerDevice

【解决方案2】：

这背后的唯一原因是您的请求格式不正确查看此Spring 4.x/3.x (Web MVC) REST API and JSON2 Post requests, how to get it right once for all? 了解更多信息。

【讨论】：