HttpClient用法

最新推荐文章于 2025-09-08 00:09:35 发布

转载最新推荐文章于 2025-09-08 00:09:35 发布 · 49 阅读

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原文链接：http://www.cnblogs.com/xing-yun/p/3314816.html

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#移动开发 #java

  1 package alex.reader.ebook.bam;
  2 import java.io.IOException;
  3 import java.util.ArrayList;
  4 import java.util.HashMap;
  5 import java.util.Iterator;
  6 import java.util.List;
  7 import java.util.Map;
  8 import org.apache.http.HttpResponse;
  9 import org.apache.http.NameValuePair;
 10 import org.apache.http.client.ClientProtocolException;
 11 import org.apache.http.client.HttpClient;
 12 import org.apache.http.client.entity.UrlEncodedFormEntity;
 13 import org.apache.http.client.methods.HttpGet;
 14 import org.apache.http.client.methods.HttpPost;
 15 import org.apache.http.client.params.HttpClientParams;
 16 import org.apache.http.impl.client.DefaultHttpClient;
 17 import org.apache.http.message.BasicNameValuePair;
 18 import org.apache.http.params.BasicHttpParams;
 19 import org.apache.http.params.HttpConnectionParams;
 20 import org.apache.http.params.HttpParams;
 21 import org.apache.http.params.HttpProtocolParams;
 22 import org.apache.http.protocol.HTTP;
 23 import org.apache.http.util.EntityUtils;
 24 import android.app.Activity;
 25 import android.os.Bundle;
 26 import android.util.Log;
 27 import android.widget.EditText;
 28 public class SimpleClient extends Activity {
 29     private HttpParams httpParams;
 30     private HttpClient httpClient;
 31     @Override
 32     public void onCreate(Bundle savedInstanceState) {
 33         super.onCreate(savedInstanceState);
 34         setContentView(R.layout.simple_client);
 35         EditText editText = (EditText) this.findViewById(R.id.EditText01);
 36         List<NameValuePair> params = new ArrayList<NameValuePair>();
 37         params.add(new BasicNameValuePair("email", "firewings.r@gmail.com"));
 38         params.add(new BasicNameValuePair("password", "954619"));
 39         params.add(new BasicNameValuePair("remember", "1"));
 40         params.add(new BasicNameValuePair("from", "kx"));
 41         params.add(new BasicNameValuePair("login", "登 录"));
 42         params.add(new BasicNameValuePair("refcode", ""));
 43         params.add(new BasicNameValuePair("refuid", "0"));
 44         Map params2 = new HashMap();
 45         params2.put("hl", "zh-CN");
 46         params2.put("source", "hp");
 47         params2.put("q", "haha");
 48         params2.put("aq", "f");
 49         params2.put("aqi", "g10");
 50         params2.put("aql", "");
 51         params2.put("oq", "");
 52         String url2 = "http://www.google.cn/search";
 53         String url = "http://wap.kaixin001.com/home/";
 54         getHttpClient();
 55         editText.setText(doPost(url, params));
 56         // editText.setText(doGet(url2, params2));
 57     }
 58     public String doGet(String url, Map params) {
 59         /* 建立HTTPGet对象 */
 60         String paramStr = "";
 61         Iterator iter = params.entrySet().iterator();
 62         while (iter.hasNext()) {
 63             Map.Entry entry = (Map.Entry) iter.next();
 64             Object key = entry.getKey();
 65             Object val = entry.getValue();
 66             paramStr += paramStr = "&" + key + "=" + val;
 67         }
 68         if (!paramStr.equals("")) {
 69             paramStr = paramStr.replaceFirst("&", "?");
 70             url += paramStr;
 71         }
 72         HttpGet httpRequest = new HttpGet(url);
 73         String strResult = "doGetError";
 74         try {
 75             /* 发送请求并等待响应 */
 76             HttpResponse httpResponse = httpClient.execute(httpRequest);
 77             /* 若状态码为200 ok */
 78             if (httpResponse.getStatusLine().getStatusCode() == 200) {
 79                 /* 读返回数据 */
 80                 strResult = EntityUtils.toString(httpResponse.getEntity());
 81             } else {
 82                 strResult = "Error Response: "
 83                         + httpResponse.getStatusLine().toString();
 84             }
 85         } catch (ClientProtocolException e) {
 86             strResult = e.getMessage().toString();
 87             e.printStackTrace();
 88         } catch (IOException e) {
 89             strResult = e.getMessage().toString();
 90             e.printStackTrace();
 91         } catch (Exception e) {
 92             strResult = e.getMessage().toString();
 93             e.printStackTrace();
 94         }
 95         Log.v("strResult", strResult);
 96         return strResult;
 97     }
 98     public String doPost(String url, List<NameValuePair> params) {
 99         /* 建立HTTPPost对象 */
100         HttpPost httpRequest = new HttpPost(url);
101         String strResult = "doPostError";
102         try {
103             /* 添加请求参数到请求对象 */
104             httpRequest.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
105             /* 发送请求并等待响应 */
106             HttpResponse httpResponse = httpClient.execute(httpRequest);
107             /* 若状态码为200 ok */
108             if (httpResponse.getStatusLine().getStatusCode() == 200) {
109                 /* 读返回数据 */
110                 strResult = EntityUtils.toString(httpResponse.getEntity());
111             } else {
112                 strResult = "Error Response: "
113                         + httpResponse.getStatusLine().toString();
114             }
115         } catch (ClientProtocolException e) {
116             strResult = e.getMessage().toString();
117             e.printStackTrace();
118         } catch (IOException e) {
119             strResult = e.getMessage().toString();
120             e.printStackTrace();
121         } catch (Exception e) {
122             strResult = e.getMessage().toString();
123             e.printStackTrace();
124         }
125         Log.v("strResult", strResult);
126         return strResult;
127     }
128     public HttpClient getHttpClient() {
129         // 创建 HttpParams 以用来设置 HTTP 参数（这一部分不是必需的）
130         this.httpParams = new BasicHttpParams();
131         // 设置连接超时和 Socket 超时，以及 Socket 缓存大小
132         HttpConnectionParams.setConnectionTimeout(httpParams, 20 * 1000);
133         HttpConnectionParams.setSoTimeout(httpParams, 20 * 1000);
134         HttpConnectionParams.setSocketBufferSize(httpParams, 8192);
135         // 设置重定向，缺省为 true
136         HttpClientParams.setRedirecting(httpParams, true);
137         // 设置 user agent
138         String userAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.2) Gecko/20100115 Firefox/3.6";
139         HttpProtocolParams.setUserAgent(httpParams, userAgent);
140         // 创建一个 HttpClient 实例
141         // 注意 HttpClient httpClient = new HttpClient(); 是Commons HttpClient
142         // 中的用法，在 Android 1.5 中我们需要使用 Apache 的缺省实现 DefaultHttpClient
143         httpClient = new DefaultHttpClient(httpParams);
144         return httpClient;
145     }
146 }