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我正在将 https 发布请求中的 json 字符串发送到 apache servert（请求将 json 数据发送到实际上是 python 脚本的 cgi-bin 脚本）。我正在使用标准的 cgi 调用- 

 f=open("./testfile",  "w+")                                             
 f.write("usageData  json  =  \n")   
 <b>form = cgi.FieldStorage()  
 formList = ['Data']      
 str = form['Data'].value
 str = json.dumps(backupstr)
 </b>      
 print  backupstr

读取 url 中的 json 字符串。问题是即使脚本被触发（基本打印语句正在执行......），脚本也没​​有读取 url 中的 json。这就是从 post 端发送数据的方式： 

  HttpsURLConnection  connection  =   null;
  try{
     connection  = (HttpsURLConnection)url.openConnection();
     connection.setRequestMethod("POST");
     connection.setRequestProperty("Content-Type", 
                 "application/json");
     connection.setRequestProperty("Content-Length", "" + 
                  Integer.toString(jsonstring.getBytes().length));
     connection.setRequestProperty("Content-Language", "en-US");  
     connection.setUseCaches (false);
     connection.setDoInput(true);
     connection.setDoOutput(true);

     //Send request
     DataOutputStream wr = new DataOutputStream (
                     connection.getOutputStream ());
     //wr.writeBytes(jsonstring);
     wr.writeUTF(URLEncoder.encode(jsonstring,  "UTF-8"));
     wr.flush ();
     wr.close ();

     //Get Response 
     InputStream is = connection.getInputStream();
     BufferedReader rd = new BufferedReader(new InputStreamReader(is));
     String line;
     StringBuffer response = new StringBuffer(); 
     while((line = rd.readLine()) != null) {
         response.append(line);
     }
     rd.close();
     //response = httpClient.execute(request); 
  }
  catch (Exception e) 
  {
      System.out.println("Exception  "  +  e.getMessage());
      throw  e;
   }

我怀疑在发送端缺少一个或多个 connection.setRequestProperty() 设置，这就是它触发脚本但没有读取 url 中的 json 字符串的原因……我做错了什么……？

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