使用java代码获取新浪微博应用的access token代码实例

package test;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.net.URI;import java.net.URISyntaxException;import org.apache.http.HttpEntity;import org.apache.http.HttpHost;import org.apache.http.HttpResponse;import org.apache.http.client.HttpClient;import org.apache.http.client.methods.HttpPost;import org.apache.http.conn.params.ConnRoutePNames;import org.apache.http.impl.client.DefaultHttpClient;public class WeiboAccessTokenRequest {	static public void main(String[] arg)	{		//System.setProperty("http.proxyHost", "proxy.wdf.diablo.corp");		//System.setProperty("http.proxyPort", "8080");		HttpClient httpclient = new DefaultHttpClient();  		HttpPost post = new HttpPost();		URI url;		try 		{			//url = new URI("https://api.weibo.com/oauth2/access_token");			String request = "https://api.weibo.com/oauth2/access_token?client_id=3921363495&client_secret=bac53e1f9c1e66514cf7410e39d581dd"					+ "&grant_type=authorization_code&code=7420036e360713bab82f62a5275aaba7&redirect_uri=https://api.weibo.com/oauth2/default.html";			url = new URI(request);			post.setURI(url);			HttpHost proxy = new HttpHost("proxy.wdf.sap.corp", 8080);			httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);			/*post.addHeader("client_id", "3921363495");			post.addHeader("client_secret", "bac53e1f9c1e66514cf7410e39d581dd");			post.addHeader("grant_type", "authorization_code");			post.addHeader("code", "7420036e360713bab82f62a5275aaba7");			post.addHeader("redirect_uri", "https://api.weibo.com/oauth2/default.html");*/			HttpResponse response = httpclient.execute(post);			HttpEntity entity = response.getEntity();   			if (entity == null)			{				System.out.println("response is null!");				return;			}   			InputStream instreams = entity.getContent();   			String str = convertStreamToString(instreams);  			System.out.println("Do something");  			System.out.println(str);  		} 		catch (Exception e) 		{			e.printStackTrace();		}	}			public static String convertStreamToString(InputStream is) 	{    		BufferedReader reader = new BufferedReader(new InputStreamReader(is));    		StringBuilder sb = new StringBuilder();    		String line = null;    		try {    			while ((line = reader.readLine()) != null) {  				sb.append(line + "/n");    				}    		} catch (IOException e) {    			e.printStackTrace();    		} finally {    			try {    				is.close();    			} catch (IOException e) {    				e.printStackTrace();    			}    		}    		return sb.toString();    	}  }