HttpClient登陆

获取cookie

public static String HBLogin(String loginName,String loginPassword,String url) throws IllegalStateException, IOException{
		HttpClient client = new DefaultHttpClient();
		
		//设置登录参数  
        List<NameValuePair> formparams = new ArrayList<NameValuePair>();  
        formparams.add(new BasicNameValuePair("uname", loginName));  
        formparams.add(new BasicNameValuePair("upwd", loginPassword));  
        formparams.add(new BasicNameValuePair("Action", "Login"));  
        UrlEncodedFormEntity entity = new UrlEncodedFormEntity(formparams, "UTF-8");  
          
        //新建Http  post请求  
        HttpPost httppost = new HttpPost(url);  
        httppost.setEntity(entity);  
        //处理请求，得到响应  
        HttpResponse response = client.execute(httppost);
        	
        String set_cookie = response.getFirstHeader("Set-Cookie").getValue(); 
        String cookie = set_cookie.substring(0,set_cookie.indexOf(";"));
        return cookie;
	}

 登陆

public static String getCon(String cookie,String url){
		HttpClient httpclient = new DefaultHttpClient();
		HttpGet get = new HttpGet(url);
		get.setHeader("Cookie", cookie);
		HttpResponse response = null;
		try {
			response = httpclient.execute(get);
			return EntityUtils.toString(response.getEntity());
		} catch (ClientProtocolException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
		
		return null;
	}

测试登陆

String cookie = HttpClientUtils.HBLogin("账号", "密码", "url");
String domStr = HttpClientUtils.getCon(cookie, fetchingUrl);