无法使用GET请求发送content-body [英] Cannot send content-body with GET request

问题描述

我正在弹性搜索上执行一个简单的请求正文搜索，如以下示例，但使用.NET而不是卷曲

  $ curl -XGET' http：// localhost：9200 / twitter / tweet / _search'-d'{
query：{
term：{user：kimchy} 
} 
} 
'
  

以下是我的.NET代码。

  var uri =http：// localhost：9200 / myindex / _search; 
 var json ={\query\：{\term\：{\user\：\kimchy\}}} 
 
 var request =（System.Net.HttpWebRequest）System.Net.WebRequest.Create（uri）; 
 request.ContentType =text / json; 
 request.Method =GET; 
 
 var responseString = string.Empty; 
 
 using（var streamWriter = new System.IO.StreamWriter（request.GetRequestStream（）））
 {
 streamWriter.Write（json）; 
 streamWriter.Flush（）; 
 streamWriter.Close（）; 
 
 var response =（System.Net.HttpWebResponse）request.GetResponse（）; 
 using（var streamReader = new System.IO.StreamReader（response.GetResponseStream（）））
 {
 responseString = streamReader.ReadToEnd（）; 
} 
} 
  

但是，我收到以下错误。 p>

 无法使用此动词类型发送内容正文。 
 ... 
异常详细信息：System.Net.ProtocolViolationException：无法使用此动词类型发送内容正文。 
 ... 
第54行：使用（var streamWriter = new System.IO.StreamWriter（request.GetRequestStream（）））
  

有什么办法可以使用标准的.NET类发送一个包含 GET 请求的内容体。或者有解决方法吗？

解决方案

将方法更改为 POST 是一种解决方法。

  request.Method =POST; 
  

GET 或 HEAD 方法调用GetResponseStream（）方法。 >

I am trying to execute a simple "request body search" on Elasticsearch like the following example but using .NET instead of curl

$ curl -XGET 'http://localhost:9200/twitter/tweet/_search' -d '{
    "query" : {
        "term" : { "user" : "kimchy" }
    }
}
'

Below is my .NET code.

var uri = "http://localhost:9200/myindex/_search";
var json = "{ \"query\" : { \"term\" : { \"user\" : \"kimchy\" } } }";

var request = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(uri);
request.ContentType = "text/json";
request.Method = "GET";

var responseString = string.Empty;

using (var streamWriter = new System.IO.StreamWriter(request.GetRequestStream()))
{
    streamWriter.Write(json);
    streamWriter.Flush();
    streamWriter.Close();

    var response = (System.Net.HttpWebResponse)request.GetResponse();
    using (var streamReader = new System.IO.StreamReader(response.GetResponseStream()))
    {
        responseString = streamReader.ReadToEnd();
    }
}

However, I am getting the following error.

Cannot send a content-body with this verb-type.
...
Exception Details: System.Net.ProtocolViolationException: Cannot send a content-body with this verb-type.
...
Line 54: using (var streamWriter = new System.IO.StreamWriter(request.GetRequestStream()))

Is there any way I can send a content-body with a GET request using standard .NET classes. Or is there a workaround?

解决方案

Changing the Method to POST is a workaround.

request.Method = "POST";

MSDN states that a ProtocolViolationException will be thrown if the GetResponseStream() method is called with a GET or HEAD method.

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