java调用webservice 天气预报

public static void WeatherTest(){
 
  try {
  
   String endpoint = "http://www.webxml.com.cn/WebServices/WeatherWebService.asmx?wsdl";
   Service service = new Service();
   Call call = (Call)service.createCall();// 通过service创建call对象

   // 设置service所在URL

   call.setTargetEndpointAddress(new java.net.URL(endpoint));

   call.setOperationName(new QName("http://WebXml.com.cn/", "getWeatherbyCityName"));
   call.addParameter(new QName("http://WebXml.com.cn/","theCityName"),org.apache.axis.encoding.XMLType.XSD_STRING, javax.xml.rpc.ParameterMode.IN);

   call.setUseSOAPAction(true);

   call.setReturnType(org.apache.axis.encoding.XMLType.SOAP_VECTOR); //返回参数的类型(不能用Array，否则报错)

   call.setSOAPActionURI("http://WebXml.com.cn/getWeatherbyCityName");

   Vector ret =  (Vector) call.invoke(new Object[]{"大庆"});

   System.out.println("--------"+ret);

  } catch (Exception e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
}