[問題] Android和php連接問題

[sky8031358 (喚月楓晴)]

小的我參考:http://goo.gl/ti5Yg網站範例做程式
完成後沒有顯示錯誤訊息
模擬器的Toast也有正確顯示出輸入的訊息，但網頁顯示不出結果
以下是我的程式碼:
import java.util.ArrayList;
import java.util.List;

import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
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 org.apache.http.protocol.HTTP;
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.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends Activity implements OnClickListener{

        private EditText txtMessage;
        private Button sendBtn;
        private String uriAPI = "http://localhost/httpPostTest.php";

        protected static final int REFRESH_DATA = 0x00000001;

         Handler mHandler = new Handler(){
                @Override
                public void handleMessage(Message msg)
                {
                        switch(msg.what)
                        {
                        case REFRESH_DATA:
                                String result = null;
                                if(msg.obj instanceof String)
                                        result = (String)msg.obj;
                                if(result != null)
                                        Toast.makeText(MainActivity.this, result, Toast.LENGTH_SHORT).show();
                                break;
                        }
                }
        };



        @Override
        protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.activity_main);

                txtMessage = (EditText)findViewById(R.id.txt_message);
                sendBtn = (Button)findViewById(R.id.send_btn);

                if (sendBtn != null)
                {
                        sendBtn.setOnClickListener(this);
                }
        }
        @Override
        public void onClick(View v) {
                if(v ==sendBtn){
                        if (txtMessage!=null)
                        {
                                String msg=txtMessage.getEditableText().toString();
                                Thread t = new Thread(new sendPostRunnable(msg));
                                t.start();
                        }

                }

        }

        private String sendPostDataToInternet(String strTxt)
        {
                HttpPost httpRequest = new HttpPost(uriAPI);
                List<NameValuePair> params = new ArrayList<NameValuePair>();
                params.add(new BasicNameValuePair("data",strTxt));
                try
                {
                        httpRequest.setEntity(new UrlEncodedFormEntity(params,HTTP.UTF_8));
                        HttpResponse httpResponse = new DefaultHttpClient().execute(httpRequest);
                        if (httpResponse.getStatusLine().getStatusCode() == 200)
                        {
                                String strResult = EntityUtils.toString(httpResponse.getEntity());
                                return strResult;
                        }}

                catch (Exception e)
                {
                        Toast.makeText(this, e.getMessage().toString(), Toast.LENGTH_SHORT).show();
                        e.printStackTrace();
                }
                        return null;
                }


        class sendPostRunnable implements Runnable{
        String strTxt = null;

        public sendPostRunnable(String strTxt)
        {
                this.strTxt = strTxt;
        }
                @Override
                public void run() {
                        String result = sendPostDataToInternet(strTxt);
                        mHandler.obtainMessage(REFRESH_DATA,result).sendToTarget();
                }


        }
        }


這是PHP的部分:

<?php
header("Content-Type:text/html;charset=utf-8");
$data=$_POST['data'];
echo "data=".$data;
?> 還煩請各位大大指點

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→ loxyz: 1. 加log看.....getStatusCode() 是不是200
→ loxyz: 2. 加log看 strResult 是什麼
→ stevekevin10: 為啥你會認為網頁能輸出你要的資料....?
→ stevekevin10: 你load該網頁時是沒有接到post的啊
推 ckvir: 你搞錯了，你把 echo 改成寫檔就知道有沒有了
→ y3k: 推薦你用httpbin.org去測試 就知道是哪邊的問題