输入参数:QQ号码 String,默认QQ号码:8698053。返回数据:String,Y = 在线;N = 离线;E = QQ号码错误;A = 商业用户验证失败;V = 免费用户超过数量
String url = "http://webservice.webxml.com.cn/webservices/qqOnlineWebService.asmx?wsdl";
Client client = new Client(new URL(url));
Object[] ret = client.invoke("qqCheckOnline", new String[] { "543090050" });
String xmlResult = ret[0].toString();