HttpPost不在主要的外面工作

Question

首先，对不起我的英语，还没掌握这门语言。 其次，我正在开发一个Web服务器，它向服务器发出请求并遇到问题。

当我调用一个名为＆＃34; last_url＆＃34;的函数时从主要的HttpPost我运行一个没有问题的电话。但是，如果我在经历了两次从服务器收集数据并执行不同的http请求的活动之后运行，我就不会正确运行HttpPost。

任何人都可以伸出援手吗？我真的坚持这个，无法找到解决问题的方法。

谢谢。

跑步前打电话：

    import java.io.ByteArrayOutputStream;
    import java.io.IOException;

    import org.apache.commons.lang3.StringEscapeUtils;
    import org.apache.commons.lang3.text.translate.UnicodeUnescaper;
    import org.apache.http.HttpResponse;
    import org.apache.http.HttpStatus;
    import org.apache.http.StatusLine;
    import org.apache.http.client.ClientProtocolException;
    import org.apache.http.client.HttpClient;
    import org.apache.http.client.methods.HttpGet;
    import org.apache.http.impl.client.DefaultHttpClient;

    import android.os.AsyncTask;


    public class PeticionWeb extends AsyncTask<String, String, String>{


        protected String doInBackground(String... uri) {
            HttpClient httpclient = new DefaultHttpClient();
            HttpResponse response = null;
            String responseString = null;
            try {


           response = httpclient.execute(new HttpGet(uri[0]));
            StatusLine statusLine = response.getStatusLine();
            if(statusLine.getStatusCode() == HttpStatus.SC_OK){
                ByteArrayOutputStream out = new ByteArrayOutputStream();
                response.getEntity().writeTo(out);
                out.close();
                responseString = out.toString();
                out.close();
            } else{
                //Closes the connection.
                response.getEntity().getContent().close();
                throw new IOException(statusLine.getReasonPhrase());
            }
        } catch (ClientProtocolException e) {
            //TODO Handle problems..
        } catch (IOException e) {
            //TODO Handle problems..
        }
        //Parseamos a unicode sin problema y eliminamos   \\.
        UnicodeUnescaper     unescaper     = new UnicodeUnescaper();
        responseString = unescaper.translate(responseString);
        responseString = StringEscapeUtils.unescapeJava(responseString);
        //System.out.println(responseString);

        return responseString;
    }

    @Override
    protected void onPostExecute(String result) {

        super.onPostExecute(result);
        //Do anything with response..
    }
    protected void onPreExecute() {



    }


   }

通话失败：

import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;

import android.os.AsyncTask;
import android.util.Log;



public class PeticionWeb extends AsyncTask<String, Void, String> //params,progres,result
{       

    @Override
    protected String doInBackground(String... params)   
    {           
        BufferedReader inBuffer = null;
        HttpClient httpClient =null;
        HttpPost request = null;
        List<NameValuePair> postParameters = null;

        String url = params[0].toString().trim();        
        String result = "fail";

        try {
              httpClient = new DefaultHttpClient();
              request = new HttpPost(url);
              postParameters = new ArrayList<NameValuePair>();
              String[] a_param  = params[1].split(",");
              String[] a_values  = params[2].split(",");               
              for(int i = 0; i < a_param.length;i++){
                   postParameters.add( new BasicNameValuePair(a_param[i],a_values[i]) );
                   System.out.println("Params1: "+a_param[i]+"="+a_values[i]);
               }               
               UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(postParameters);
               request.setEntity(formEntity);               
               HttpResponse respuesta = httpClient.execute(request);
               ByteArrayOutputStream out = null;
               out = new ByteArrayOutputStream();
               respuesta.getEntity().writeTo(out);
               out.close();
               result = out.toString();


        } catch(Exception e) {
            Log.e("POST",e.toString());
            result = e.getMessage();
        } finally {
            if (inBuffer != null) {
                try {
                    inBuffer.close();
                } catch (IOException e) {
                    Log.e("FalloBuffer: ",e.toString());
                    e.printStackTrace();
                }
            }
        }

        return  result;
    }

    protected void onPostExecute(String page)
    {       


    }   
}  

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