java检测QQ是否在线
package mylib.webxml;
//~--- JDK imports ------------------------------------------------------------
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
/**
*
* @author jmp esp
* @version 1.0
*
*/
public class CheckQQ {
// 查询后返回的状态
private final static int ERROR_QQ = 2;
private final static int OFFLINE_QQ = 1;
private final static int ONLINE_QQ = 0;
//特征码
private final static String ONLINE=">Y<";
private final static String OFFLINE=">N<";
private final static String WEBXML_QQ =
"http://webservice.webxml.com.cn/webservices/qqOnlineWebService.asmx/qqCheckOnline?qqCode=";
/**
* 判断QQ是否在线
* @param qq
* @return 在线:0|不在线:1|出现错误:2
*/
public static int isOnline(String qq) {
URL url = null;
HttpURLConnection http = null;
InputStream in = null;
try {
url = new URL(WEBXML_QQ + qq);
http = (HttpURLConnection) url.openConnection();
http.connect();
i
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