PhoneHttpGet

package com.example.phonehpptget;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

import android.os.Bundle;
import android.os.Handler;
import android.app.Activity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class MainActivity extends Activity {

HttpURLConnection conn;
URL url;
InputStream is;
TextView tv;
EditText et;
Button btn;
String name;
String result;
Handler handler=null;

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

tv = (TextView) findViewById(R.id.textView1);
et = (EditText) findViewById(R.id.editText1);
btn = (Button) findViewById(R.id.button1);

handler=new Handler();

btn.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
name = et.getText().toString();
//String pwd = pwdText.getText().toString();

// 运行线程，使用GET方法向本地服务器发送数据
GetThread getThread = new GetThread(name);
getThread.start();

}
});
}

class GetThread extends Thread {

String name;

public GetThread(String name) {
this.name = name;
}

@Override
public void run() {

// 用HttpClient发送请求，分为五步
// 第一步：创建HttpClient对象
HttpClient httpClient = new DefaultHttpClient();
// 注意，下面这一行中，我之前把链接中的"test"误写成了"text"，导致调BUG调了半天没弄出来，真是浪费时间啊
String url = "http://10.0.2.2:8080/My_Service/webdate.jsp?name="
+ name;
// 第二步：创建代表请求的对象,参数是访问的服务器地址
HttpGet httpGet = new HttpGet(url);

try {

// 第三步：执行请求，获取服务器发还的相应对象
HttpResponse response = httpClient.execute(httpGet);
// 第四步：检查相应的状态是否正常：检查状态码的值是200表示正常
if (response.getStatusLine().getStatusCode() == 200) {
// 第五步：从相应对象当中取出数据，放到entity当中
HttpEntity entity = response.getEntity();
BufferedReader reader = new BufferedReader(
new InputStreamReader(entity.getContent()));
result = reader.readLine();

Log.d("HTTP", "GET:" + result);
handler.post(runnableUi);
}
} catch (Exception e) {
e.printStackTrace();
}

}
}

Runnable runnableUi=new Runnable(){
@Override
public void run() {
//更新界面
tv.setText("the Content is:"+result);
}

};
}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity" >

<EditText
android:id="@+id/editText1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:hint="@string/no_data" />

<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/btn_get" />

<TextView
android:id="@+id/textView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="@string/btn_get" />

</LinearLayout>