Android HttpClient

 

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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", "[e-mail]")); 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; } }