android之访问被保护的资源

package org.crazyit.net;import java.io.BufferedReader;import java.io.InputStreamReader;import java.util.ArrayList;import java.util.List;import org.apache.http.HttpEntity;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.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.protocol.HTTP;import org.apache.http.util.EntityUtils;import android.app.Activity;import android.app.AlertDialog;import android.content.DialogInterface;import android.os.Bundle;import android.os.Handler;import android.os.Looper;import android.os.Message;import android.view.View;import android.widget.EditText;import android.widget.TextView;import android.widget.Toast;public class HttpClientTest extends Activity{TextView response;HttpClient httpClient;Handler handler = new Handler(){public void handleMessage(Message msg){if(msg.what == 0x123){// 使用response文本框显示服务器响应response.append(msg.obj.toString() + "\n");}}};@Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);// 创建DefaultHttpClient对象httpClient = new DefaultHttpClient();response = (TextView) findViewById(R.id.response);}public void accessSecret(View v){response.setText("");new Thread(){@Overridepublic void run(){// 创建一个HttpGet对象HttpGet get = new HttpGet("https://mail.qq.com/cgi-bin/loginpage");  //①try{// 发送GET请求HttpResponse httpResponse = httpClient.execute(get);//②HttpEntity entity = httpResponse.getEntity();if (entity != null){// 读取服务器响应BufferedReader br = new BufferedReader(new InputStreamReader(entity.getContent()));String line = null;while ((line = br.readLine()) != null){Message msg = new Message();msg.what = 0x123;msg.obj = line;handler.sendMessage(msg);}}}catch (Exception e){e.printStackTrace();}}}.start();}public void showLogin(View v){// 加载登录界面final View loginDialog = getLayoutInflater().inflate(R.layout.login, null);// 使用对话框供用户登录系统new AlertDialog.Builder(HttpClientTest.this).setTitle("登录系统").setView(loginDialog).setPositiveButton("登录",new DialogInterface.OnClickListener(){@Overridepublic void onClick(DialogInterface dialog,int which){// 获取用户输入的用户名、密码final String name = ((EditText) loginDialog.findViewById(R.id.name)).getText().toString();final String pass = ((EditText) loginDialog.findViewById(R.id.pass)).getText().toString();new Thread(){@Overridepublic void run(){try{HttpPost post = new HttpPost("https://mail.qq.com/cgi-bin/loginpage");//③// 如果传递参数个数比较多的话可以对传递的参数进行封装List<NameValuePair> params = newArrayList<NameValuePair>();params.add(new BasicNameValuePair("name", name));params.add(new BasicNameValuePair("pass", pass));// 设置请求参数post.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));// 发送POST请求HttpResponse response = httpClient.execute(post);  //④// 如果服务器成功地返回响应if (response.getStatusLine().getStatusCode() == 200){String msg = EntityUtils.toString(response.getEntity());Looper.prepare();// 提示登录成功Toast.makeText(HttpClientTest.this,msg, Toast.LENGTH_SHORT).show();Looper.loop();}}catch (Exception e){e.printStackTrace();}}}.start();}}).setNegativeButton("取消", null).show();}}

<?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"><LinearLayoutandroid:orientation="horizontal"android:layout_width="fill_parent"android:layout_height="wrap_content"android:gravity="center_horizontal"><Button  android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/get"android:onClick="accessSecret"/><Button  android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/login"android:onClick="showLogin"/></LinearLayout><TextView  android:id="@+id/response"android:layout_width="fill_parent" android:layout_height="fill_parent"android:gravity="top" android:background="#ffff"android:textColor="#f000"android:textSize="16dp"/></LinearLayout>

<?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"><LinearLayoutandroid:orientation="horizontal"android:layout_width="fill_parent"android:layout_height="wrap_content"><TextView  android:layout_width="wrap_content" android:layout_height="wrap_content"android:text="@string/name"/><EditText  android:id="@+id/name"android:layout_width="fill_parent" android:layout_height="wrap_content"/></LinearLayout><LinearLayoutandroid:orientation="horizontal"android:layout_width="fill_parent"android:layout_height="wrap_content"><TextView  android:layout_width="wrap_content" android:layout_height="wrap_content"android:text="@string/pass"/><EditText  android:id="@+id/pass"android:layout_width="fill_parent" android:layout_height="wrap_content"/></LinearLayout></LinearLayout>

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