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我正在尝试使用 HttpURLConnection API 创建 android 应用程序。我成功登录，现在尝试触发另一个查询说（http://someserver.com/myapp/getemployeebyid?userid。）在执行此语句时，我得到以下异常。

java.net.protocolexception：连接已经建立

我已经关闭了输入流。

我的代码是。

mymethod(urlString){

                    InputStream myis = null;
                    URL url = new URL(urlstring);
        HttpURLConnection httpURLconnection = (HttpURLConnection)                                      

                    url.openConnection();
        httpURLconnection.setReadTimeout(10000);
        httpURLconnection.setConnectTimeout(15000);
        httpURLconnection.setRequestMethod("GET");
        httpURLconnection.setDoInput(true);

        httpURLconnection.connect();

                     int myresponse = httpURLconnection.getResponseCode();


        if (myresponse == 200) {
            ResponseFlag = true;
            myis = httpURLconnection.getInputStream();

            // Convert the InputStream into a string
            contentAsString = convertIttostring(myis);

                        } 
                      else {
            ResponseFlag = false;
            somemesg = "incorrect response ";
        }
    }
    catch(Exception Ex){
        System.out.println(Ex.toString());
        somemesg="connection failed";
    }
    finally {
        if (myis != null) {
            myis.close();
        }
    }

}

现在我有 2 个查询。

  1. 我需要写connection.disconnect(); 在 myis.close() 之下，分别？
  2. 登录成功后，我正在尝试重新连接。我不能连接一次并触发查询。完成所有操作后关闭连接？
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0 回答 0