HttpClient4使用
package main;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.ParseException;
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.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
public classMain {
private static HttpClient hc =newDefaultHttpClient();
/**
* @param args
*/
public static void main(String[] args) {
List params =newArrayList();
params.add(new BasicNameValuePair("email","xxx@gmail.com"));
params.add(new BasicNameValuePair("pwd","xxx"));
params.add(new BasicNameValuePair("save_login","1"));
String url ="http://www.oschina.net/action/user/login";
String body = post(url, params);
System.out.println(body);
}
/**
* Get請求
* @param url
* @param params
* @return
*/
public static String get(String url, List params) {
String body =null;
try{
// Get請求
HttpGet httpget =newHttpGet(url);
// 設(shè)置參數(shù)
String str = EntityUtils.toString(newUrlEncodedFormEntity(params));
httpget.setURI(newURI(httpget.getURI().toString() +"?"+ str));
// 發(fā)送請求
HttpResponse httpresponse = hc.execute(httpget);
// 獲取返回數(shù)據(jù)
HttpEntity entity = httpresponse.getEntity();
body = EntityUtils.toString(entity);
if(entity !=null) {
entity.consumeContent();
}
}catch(ParseException e) {
e.printStackTrace();
}catch(UnsupportedEncodingException e) {
e.printStackTrace();
}catch(IOException e) {
e.printStackTrace();
}catch(URISyntaxException e) {
e.printStackTrace();
}
return body;
}
/**
* // Post請求
* @param url
* @param params
* @return
*/
public static String post(String url, List params) {
String body =null;
try{
// Post請求
HttpPost httppost =newHttpPost(url);
// 設(shè)置參數(shù)
httppost.setEntity(newUrlEncodedFormEntity(params));
// 發(fā)送請求
HttpResponse httpresponse = hc.execute(httppost);
// 獲取返回數(shù)據(jù)
HttpEntity entity = httpresponse.getEntity();
body = EntityUtils.toString(entity);
if(entity !=null) {
entity.consumeContent();
}
}catch(Unsuppor
