在android中發送/接收來自遠程服務器的文本數據

Question

HI 我創建了一個應用程序，我隱藏了編輯文本框和兩個按鈕，點擊了按鈕事件後，文本框將在運行時彈出，它工作得很好，但我需要打字文本要通過服務器，幫助我。所有想法都歡迎

Answer 1

如果我正確地理解了你，你在文本框中有文本，並且你想把這些數據發送到服務器。你可以看一下這些教程/片斷中看到有關您的數據發佈到Web服務器：
http://www.androidsnippets.com/executing-a-http-post-request-with-httpclient
或Secure HTTP Post in Android

Answer 2

JSON或XML可以用來發送數據到遠程服務器。

Answer 3

嗨，這段代碼將您的數據發送到編輯文本編輯的服務器。對於textview，只需通過textview的名稱更改edittext的名稱即可。下面是代碼：從服務器

package com.example.asynchttppost; 

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.ClientProtocolException; 
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.app.Activity; 
import android.os.AsyncTask; 
import android.os.Bundle; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.ProgressBar; 
import android.widget.Toast; 

public class MainActivity extends Activity implements OnClickListener{ 

    private EditText value; 
    private Button btn; 
    private ProgressBar pb; 
     private TextView tv; 


    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     value=(EditText)findViewById(R.id.editText1); 
     btn=(Button)findViewById(R.id.button1); 
     pb=(ProgressBar)findViewById(R.id.progressBar1); 
       tv =(TextView)findViewById(R.id.TextView1); 
     pb.setVisibility(View.GONE); 
     btn.setOnClickListener(this); 
    } 


    public void onClick(View v) { 
     // TODO Auto-generated method stub 
      if(value.getText().toString().length()<1){ 

       // out of range 
       Toast.makeText(this, "please enter something", Toast.LENGTH_LONG).show(); 
      }else{ 
       pb.setVisibility(View.VISIBLE); 
       new MyAsyncTask().execute(value.getText().toString());  
      } 


    } 

    private class MyAsyncTask extends AsyncTask<String, Integer, Double>{ 

     @Override 
     protected Double doInBackground(String... params) { 
      // TODO Auto-generated method stub 
      postData(params[0]); 
      return null; 
     } 

     protected void onPostExecute(Double result){ 
      pb.setVisibility(View.GONE); 
      Toast.makeText(getApplicationContext(), "Code Sent", Toast.LENGTH_LONG).show(); 
     } 
     protected void onProgressUpdate(Integer... progress){ 
      pb.setProgress(progress[0]); 
     } 

     public void postData(String valueIWantToSend) { 
      // Create a new HttpClient and Post Header 
      HttpClient httpclient = new DefaultHttpClient(); 
      //HttpPost httppost = new HttpPost("http://10.0.2.2/chotu/index.php"); 
      HttpPost httppost = new HttpPost("http://192.168.1.13/educlinic/Widget/AndroidApp"); 
      try { 

       // Add your data 
       List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(); 
       nameValuePairs.add(new BasicNameValuePair("myHttpData", valueIWantToSend)); 
       httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); 

       // Execute HTTP Post Request 
       HttpResponse response = httpclient.execute(httppost); 

      } 
      catch (ClientProtocolException e) 
      { 
       // TODO Auto-generated catch block 
      } catch (IOException e) 
      { 
       // TODO Auto-generated catch block 
      } 
     } 

    } 
} 

Answer 4

獲取文本

package com.example.sonasys.net; 

import java.util.ArrayList; 
import java.util.HashMap; 
import org.json.JSONArray; 
import org.json.JSONException; 
import org.json.JSONObject; 
import com.example.sonaprintersd.R; 
import android.app.Activity; 
import android.app.ProgressDialog; 
import android.graphics.Bitmap; 
import android.os.AsyncTask; 
import android.os.Bundle; 
import android.util.Log; 
import android.widget.ImageView; 
import android.widget.TextView; 

public class SingleContactActivity extends Activity { 
    private static final String TAG_CONTACTS = "Contacts"; 
    private static final String TAG_POSTLINE = "PostLine"; 
    private static final String TAG_Post_Img = "Post_Img"; 
    private static final String TAG_Post_Img_O = "Post_Img_O"; 

    private static String url; 
    TextView uid, pid; 
    JSONArray contacts = null; 
    private ProgressDialog pDialog; 
    String details; 
    // String imagepath = "http://test2.sonasys.net/Content/WallPost/b3.jpg"; 
    String imagepath = ""; 
    Bitmap bitmap; 
    ImageView image; 
    String imagepath2; 

    ArrayList<HashMap<String, String>> contactList; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_single_contact); 

     url = "http://test2.sonasys.net/MobileApp/GetSinglePost?UserId=" 
       + uid.getText() + "&Post_ID=" + pid.getText(); 

     contactList = new ArrayList<HashMap<String, String>>(); 
     new GetContacts().execute(); 

    } 

    private class GetContacts extends AsyncTask<Void, Void, Void> { 

     @Override 
     protected void onPreExecute() { 
      super.onPreExecute(); 
      // Showing progress dialog 
      pDialog = new ProgressDialog(SingleContactActivity.this); 
      pDialog.setMessage("Please wait..."); 
      pDialog.setCancelable(false); 
      // pDialog.setTitle("Post Details"); 
      pDialog.show(); 

     } 

     @Override 
     protected Void doInBackground(Void... arg0) { 
      // Creating service handler class instance 
      ServiceHandler sh = new ServiceHandler(); 

      // Making a request to url and getting response 
      String jsonStr = sh.makeServiceCall(url, ServiceHandler.GET); 

      Log.d("Response: ", "> " + jsonStr); 

      if (jsonStr != null) { 
       try { 
        JSONObject jsonObj = new JSONObject(jsonStr); 

        // Getting JSON Array node 
        contacts = jsonObj.getJSONArray(TAG_CONTACTS); 

        // looping through All Contacts 

        JSONObject c = contacts.getJSONObject(0); 

        details = c.getString(TAG_POSTLINE); 
        imagepath = c.getString(TAG_Post_Img); 
        imagepath2 = c.getString(TAG_Post_Img_O); 

       } catch (JSONException e) { 
        e.printStackTrace(); 
       } 
      } else { 
       Log.e("ServiceHandler", "Couldn't get any data from the url"); 
      } 

      return null; 
     } 

     @Override 
     protected void onPostExecute(Void result) { 
      super.onPostExecute(result); 
      // Dismiss the progress dialog 
      if (pDialog.isShowing()) 
       pDialog.dismiss(); 
      /**/ 
      TextView Details = (TextView) findViewById(R.id.details); 
      // Details.setText(details); 
      Details.setText(android.text.Html.fromHtml(details)); 

     } 
    } 

Answer 5

添加新的類服務處理

public class ServiceHandler { 

    static String response = null; 
    public final static int GET = 1; 
    public final static int POST = 2; 

    public ServiceHandler() { 

    } 

    /* 
    * Making service call 
    * @url - url to make request 
    * @method - http request method 
    * */ 
    public String makeServiceCall(String url, int method) { 



     return this.makeServiceCall(url, method, null); 
    } 

    /* 
    * Making service call 
    * @url - url to make request 
    * @method - http request method 
    * @params - http request params 
    * 

    * */ 

    public String makeServiceCall(String url, int method,List<NameValuePair> params) { 

     try { 
      // http client 

      DefaultHttpClient httpClient = new DefaultHttpClient(); 
      HttpEntity httpEntity = null; 
      HttpResponse httpResponse = null; 

      // Checking http request method type 
      if (method == POST) { 
       HttpPost httpPost = new HttpPost(url); 
       // adding post params 
       if (params != null) {    
        httpPost.setEntity(new UrlEncodedFormEntity(params)); 

       } 

       httpResponse = httpClient.execute(httpPost); 

      } else if (method == GET) { 
       // appending params to url 
       if (params != null) { 
        String paramString = URLEncodedUtils.format(params, "utf-8"); 
        url += "?" + paramString; 
       } 
       HttpGet httpGet = new HttpGet(url); 

       httpResponse = httpClient.execute(httpGet); 

      } 
      httpEntity = httpResponse.getEntity(); 
      response = EntityUtils.toString(httpEntity); 

     } catch (UnsupportedEncodingException e) { 
      e.printStackTrace(); 
     } catch (ClientProtocolException e) { 
      e.printStackTrace(); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } 

     return response; 

    }