通过 httpclientget 方法 向服务器中请求数据

/*   * 通过 httpclientget 方法 向服务器中请求数据   */

public String getweb(String username, String userpass, String url) {

String str = "";

StringBuffer sb = new StringBuffer(url);

sb.append("?username=");

sb.append(username);

sb.append("&userpass=");

sb.append(userpass);

HttpGet get = new HttpGet(sb.toString());

HttpParams pare = new BasicHttpParams();

HttpConnectionParams.setConnectionTimeout(pare, 5000);

HttpConnectionParams.setSoTimeout(pare, 5000);

HttpClient client = new DefaultHttpClient();

try {

HttpResponse res = client.execute(get);

if (res.getStatusLine().getStatusCode() == 200) {

HttpEntity enti = res.getEntity();

str = EntityUtils.toString(enti, "utf-8");

}

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();   }

return str;

}

/*   * 判断网络是否连接   */

public class NetWorkUtil {

public static final String LOGIN_URL = "http://101.200.142.201:8080/tqyb/login";

public static boolean isNetAvailable(Context context){
  //获得网络管理器
  ConnectivityManager connM =
    (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
  NetworkInfo netInfo = connM.getActiveNetworkInfo();//得到网络详情
  
  if(netInfo == null || !netInfo.isAvailable())
   return false;
  
  return true;
 }