【Android】Http请求

比较简单直接贴代码了。

package jftt.test; import java.io.IOException; import java.util.List; import org.apache.http.HttpResponse; import org.apache.http.HttpStatus; 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.impl.client.DefaultHttpClient; import org.apache.http.params.BasicHttpParams; import org.apache.http.params.HttpConnectionParams; import org.apache.http.params.HttpParams; import android.util.Log; public class HttpRequest { /** *Post请求 */ public void doPost(String url , List<NameValuePair> nameValuePairs){ //新建HttpClient对象 HttpClient httpclient = new DefaultHttpClient(); //创建POST连接 HttpPost httppost = new HttpPost(url); try { // //使用PSOT方式，必须用NameValuePair数组传递参数 // List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(); // nameValuePairs.add(new BasicNameValuePair("id", "12345")); // nameValuePairs.add(new BasicNameValuePair("stringdata","hps is Cool!")); httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); HttpResponse response = httpclient.execute(httppost); } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } /** *Get请求 */ public void doGet(String url){ HttpParams httpParams = new BasicHttpParams(); HttpConnectionParams.setConnectionTimeout(httpParams,30000); HttpConnectionParams.setSoTimeout(httpParams, 30000); HttpClient httpClient = new DefaultHttpClient(httpParams); // GET HttpGet httpGet = new HttpGet(url); try { HttpResponse response = httpClient.execute(httpGet); if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK){ Log.i("GET", "Bad Request!"); } } catch (IOException e) { e.printStackTrace(); } } }

需要主要的是:

1.    使用POST方式时，传递参数必须使用NameValuePair数组

2.    使用GET方式时，通过URL传递参数，注意写法

3.      通过setEntity方法来发送HTTP请求

4.      通过DefaultHttpClient 的 execute方法来获取HttpResponse

5. 通过getEntity()从Response中获取内容

 

String content = EntityUtils.toString(response.getEntity());