Android通訊

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical" android:layout_width="fill_parent"
  android:layout_height="fill_parent">
  <Button android:text="GET" android:id="@+id/Button01"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content">
  </Button>
  <Button android:text="POST" android:id="@+id/Button02"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content">
  </Button>
  <TextView android:id="@+id/TextView" android:layout_width="fill_parent"
    android:layout_height="wrap_content"/>
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
            package="com.Aina.Android"
            android:versionCode="1"
            android:versionName="1.0">
        <application android:icon="@drawable/icon" android:label="@string/app_name">
                <activity android:name=".Test"
                                    android:label="@string/app_name">
                        <intent-filter>
                                <action android:name="android.intent.action.MAIN" />
                                <category android:name="android.intent.category.LAUNCHER" />
                        </intent-filter>
                </activity>

        </application>
<uses-permission android:name="android.permission.INTERNET" />

</manifest>

package com.Aina.Android;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
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.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class Test extends Activity implements Runnable{
        /** Called when the activity is first created. */
  private Button btn_get = null;
  private Button btn_post = null;
  private TextView tv_rp = null;
        @Override
        public void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.main);
                btn_get = (Button) this.findViewById(R.id.Button01);
                btn_post = (Button) this.findViewById(R.id.Button02);
                tv_rp = (TextView) this.findViewById(R.id.TextView);
                btn_get.setOnClickListener(new Button.OnClickListener(){

      public void onClick(View v) {
        // TODO Auto-generated method stub
        String httpUrl = "http://192.168.0.132:8080/Android/httpreq.jsp?par=request-get";
        HttpGet request = new HttpGet(httpUrl);
        HttpClient httpClient = new DefaultHttpClient();
        try {
          HttpResponse response = httpClient.execute(request);
          if(response.getStatusLine().getStatusCode()==HttpStatus.SC_OK){
            String str = EntityUtils.toString(response.getEntity());
            tv_rp.setText(str);
          }else{
            tv_rp.setText("請求錯誤");
          }
        } catch (ClientProtocolException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();  
        } catch (IOException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
        }
      }
                  
                });
                btn_post.setOnClickListener(new Button.OnClickListener(){

      public void onClick(View v) {
        // TODO Auto-generated method stub
        String httpUrl = "http://192.168.0.132:8080/Android/httpreq.jsp";
        HttpPost request = new HttpPost(httpUrl);
        List<NameValuePair> params = new ArrayList<NameValuePair>();
        params.add(new BasicNameValuePair("par","request-post"));
        try {
          HttpEntity entity = new UrlEncodedFormEntity(params, "UTF-8");
          request.setEntity(entity);
          HttpClient client = new DefaultHttpClient();
          HttpResponse response = client.execute(request);
          if(response.getStatusLine().getStatusCode()==HttpStatus.SC_OK){
            String str = EntityUtils.toString(response.getEntity());
            tv_rp.setText(str);
          }else{
            tv_rp.setText("請求錯誤");
          }
        } catch (UnsupportedEncodingException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
        } catch (ClientProtocolException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
        } catch (IOException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
        }
      }
                  
                });
                new Thread(this).start();
        }
        public void refresh(){
          String httpUrl = "http://192.168.0.132:8080/Android/httpreq.jsp";
          try {
      URL url = new URL(httpUrl);
      HttpURLConnection urlConn = (HttpURLConnection) url.openConnection();
      urlConn.connect();
      InputStream input = urlConn.getInputStream();
      InputStreamReader inputreader = new InputStreamReader(input);
      BufferedReader reader = new BufferedReader(inputreader);
      String str = null;
      StringBuffer sb = new StringBuffer();
      while((str = reader.readLine())!= null){
        sb.append(str).append("\n");
      }
      if(sb != null){
        tv_rp.setText(sb.toString());
      }else{
        tv_rp.setText("NULL");
      }
      reader.close();
      inputreader.close();
      input.close();
      reader = null;
      inputreader = null;
      input = null;
    } catch (MalformedURLException e) {
      e.printStackTrace();
    } catch (IOException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
        }
        public Handler handler = new Handler(){
          public void handleMessage(Message msg){
            super.handleMessage(msg);
            refresh();
          }
        };
  public void run() {
    // TODO Auto-generated method stub
    while(true){
      try {
        Thread.sleep(1000);
        handler.sendMessage(handler.obtainMessage());
      } catch (InterruptedException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      }
    }
  }
}