android HttpClient 代理設置 連接到互聯網

<?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:id="@+id/btn"
    	android:layout_width="wrap_content"
    	android:layout_height="wrap_content"
    	android:text="request btn"/>
<TextView  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="@string/hello"
    />
</LinearLayout>

package com.oppo;

import org.apache.http.HttpEntity;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.conn.params.ConnRouteParams;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpParams;

import android.app.Activity;
import android.net.Proxy;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

public class HttpTestActivity extends Activity {
    protected static final String TAG = "HttpTestActivity";

    private Button requestBtn;

    private HttpResponse httpResponse;

    private HttpEntity httpEntity;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        requestBtn = (Button)findViewById(R.id.btn);
        requestBtn.setOnClickListener(new View.OnClickListener() {
            
            @Override
            public void onClick(View v) {
                //獲取代理信息
                String host = Proxy.getHost(getApplicationContext());
                int port = Proxy.getPort(getApplicationContext());
                Log.d(TAG, "[createHttpClient] proxyHost = " + host);  
                Log.d(TAG, "[createHttpClient] proxyPort = " + port);  
                
                //設置主機http連接信息
                HttpHost httpHost = new HttpHost(host, port);
                HttpParams httpParams = new BasicHttpParams();
                httpParams.setParameter(ConnRouteParams.DEFAULT_PROXY, httpHost);
                
                HttpGet httpGet = new HttpGet("http://www.baidu.com");
                HttpClient httpClient = new DefaultHttpClient(httpParams);
                
                
                InputStream inputStream = null;
                
                try {
                    httpResponse = httpClient.execute(httpGet);
                    httpEntity = httpResponse.getEntity();
                    inputStream = httpEntity.getContent();
                    
                    BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
                    String result = "";
                    String line = "";
                 
                    while((line = reader.readLine()) != null){
                        result += result + line;
                    }
                    System.out.println(result);
                } catch (ClientProtocolException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }finally{
                    /*try {
                        inputStream.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }*/
                }
            }
        });
    
    }
}

別忘了這句哦 要有intent訪問權限

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

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