Android HttpClient

1. package alex.reader.ebook.bam;
   import java.io.IOException;
   import java.util.ArrayList;
   import java.util.HashMap;
   import java.util.Iterator;
   import java.util.List;
   import java.util.Map;
   import org.apache.http.HttpResponse;
   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.client.params.HttpClientParams;
   import org.apache.http.impl.client.DefaultHttpClient;
   import org.apache.http.message.BasicNameValuePair;
   import org.apache.http.params.BasicHttpParams;
   import org.apache.http.params.HttpConnectionParams;
   import org.apache.http.params.HttpParams;
   import org.apache.http.params.HttpProtocolParams;
   import org.apache.http.protocol.HTTP;
   import org.apache.http.util.EntityUtils;
   import android.app.Activity;
   import android.os.Bundle;
   import android.util.Log;
   import android.widget.EditText;
   public class SimpleClient extends Activity {
       private HttpParams httpParams;
       private HttpClient httpClient;
       @Override
       public void onCreate(Bundle savedInstanceState) {
           super.onCreate(savedInstanceState);
           setContentView(R.layout.simple_client);
           EditText editText = (EditText) this.findViewById(R.id.EditText01);
           List<NameValuePair> params = new ArrayList<NameValuePair>();
           params.add(new BasicNameValuePair("email", "firewings.r@gmail.com"));
           params.add(new BasicNameValuePair("password", "954619"));
           params.add(new BasicNameValuePair("remember", "1"));
           params.add(new BasicNameValuePair("from", "kx"));
           params.add(new BasicNameValuePair("login", "登 录"));
           params.add(new BasicNameValuePair("refcode", ""));
           params.add(new BasicNameValuePair("refuid", "0"));
           Map params2 = new HashMap();
           params2.put("hl", "zh-CN");
           params2.put("source", "hp");
           params2.put("q", "haha");
           params2.put("aq", "f");
           params2.put("aqi", "g10");
           params2.put("aql", "");
           params2.put("oq", "");
           String url2 = "http://www.google.cn/search";
           String url = "http://wap.kaixin001.com/home/";
           getHttpClient();
           editText.setText(doPost(url, params));
           // editText.setText(doGet(url2, params2));
       }
       public String doGet(String url, Map params) {
           /* 建立HTTPGet对象 */
           String paramStr = "";
           Iterator iter = params.entrySet().iterator();
           while (iter.hasNext()) {
               Map.Entry entry = (Map.Entry) iter.next();
               Object key = entry.getKey();
               Object val = entry.getValue();
               paramStr += paramStr = "&" + key + "=" + val;
           }
           if (!paramStr.equals("")) {
               paramStr = paramStr.replaceFirst("&", "?");
               url += paramStr;
           }
           HttpGet httpRequest = new HttpGet(url);
           String strResult = "doGetError";
           try {
               /* 发送请求并等待响应 */
               HttpResponse httpResponse = httpClient.execute(httpRequest);
               /* 若状态码为200 ok */
               if (httpResponse.getStatusLine().getStatusCode() == 200) {
                   /* 读返回数据 */
                   strResult = EntityUtils.toString(httpResponse.getEntity());
               } else {
                   strResult = "Error Response: "
                           + httpResponse.getStatusLine().toString();
               }
           } catch (ClientProtocolException e) {
               strResult = e.getMessage().toString();
               e.printStackTrace();
           } catch (IOException e) {
               strResult = e.getMessage().toString();
               e.printStackTrace();
           } catch (Exception e) {
               strResult = e.getMessage().toString();
               e.printStackTrace();
           }
           Log.v("strResult", strResult);
           return strResult;
       }
       public String doPost(String url, List<NameValuePair> params) {
           /* 建立HTTPPost对象 */
           HttpPost httpRequest = new HttpPost(url);
           String strResult = "doPostError";
           try {
               /* 添加请求参数到请求对象 */
               httpRequest.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
               /* 发送请求并等待响应 */
               HttpResponse httpResponse = httpClient.execute(httpRequest);
               /* 若状态码为200 ok */
               if (httpResponse.getStatusLine().getStatusCode() == 200) {
                   /* 读返回数据 */
                   strResult = EntityUtils.toString(httpResponse.getEntity());
               } else {
                   strResult = "Error Response: "
                           + httpResponse.getStatusLine().toString();
               }
           } catch (ClientProtocolException e) {
               strResult = e.getMessage().toString();
               e.printStackTrace();
           } catch (IOException e) {
               strResult = e.getMessage().toString();
               e.printStackTrace();
           } catch (Exception e) {
               strResult = e.getMessage().toString();
               e.printStackTrace();
           }
           Log.v("strResult", strResult);
           return strResult;
       }
       public HttpClient getHttpClient() {
           // 创建 HttpParams 以用来设置 HTTP 参数（这一部分不是必需的）
           this.httpParams = new BasicHttpParams();
           // 设置连接超时和 Socket 超时，以及 Socket 缓存大小
           HttpConnectionParams.setConnectionTimeout(httpParams, 20 * 1000);
           HttpConnectionParams.setSoTimeout(httpParams, 20 * 1000);
           HttpConnectionParams.setSocketBufferSize(httpParams, 8192);
           // 设置重定向，缺省为 true
           HttpClientParams.setRedirecting(httpParams, true);
           // 设置 user agent
           String userAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.2) Gecko/20100115 Firefox/3.6";
           HttpProtocolParams.setUserAgent(httpParams, userAgent);
           // 创建一个 HttpClient 实例
           // 注意 HttpClient httpClient = new HttpClient(); 是Commons HttpClient
           // 中的用法，在 Android 1.5 中我们需要使用 Apache 的缺省实现 DefaultHttpClient
           httpClient = new DefaultHttpClient(httpParams);
           return httpClient;
       }
   }