/**
* 判断OpenFire用户的状态 strUrl : url格式 - http://my.openfire.com:9090/plugins/presence
* /status?jid=user1@SERVER_NAME&type=xml 返回值 : 0 - 用户不存在; 1 - 用户在线; 2 - 用户离线 说明 ：必须要求 OpenFire加载
* presence 插件，同时设置任何人都可以访问
*/
public int IsUserOnLine(String user) {
String url =
"http://"
+ XmppConnection.getConnection().getHost()
+ ":9090/plugins/presence/status?"
+ "jid="
+ user
+ "\\40"
+ XmppConnection.getConnection().getServiceName()
+ "&type=xml";
int shOnLineState = -1;
try {
URL oUrl = new URL(url);
URLConnection oConn = oUrl.openConnection();
if (oConn != null) {
BufferedReader oIn = new BufferedReader(new InputStreamReader(oConn.getInputStream()));
if (null != oIn) {
String strFlag = oIn.readLine();
oIn.close();
System.out.println("strFlag" + strFlag);
if (strFlag.indexOf("type=\"unavailable\"") >= 0) {
shOnLineState = 2;
}
if (strFlag.indexOf("type=\"error\"") >= 0) {
shOnLineState = 0;
} else if (strFlag.indexOf("priority") >= 0 || strFlag.indexOf("id=\"") >= 0) {
shOnLineState = 1;
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return shOnLineState;
}
private void exit() {
// 当前用户下线
if (XmppConnection.getConnection() != null) {
XmppConnection.getConnection().disconnect();
}
// SingleChatListActivity.this.finish();// 退出本程序
System.exit(0);
}