SOAP包头用JAVA如何写?

SOAP包头用JAVA怎么写??
<?xml   version= "1.0 "   encoding= "utf-8 "?>  
<soap:Envelope  
    xmlns:soap= "http://schemas.xmlsoap.org/soap/envelope/ "  
    xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance "  
    xmlns:xsd= "http://www.w3.org/2001/XMLSchema ">  
      <soap:Header>  
..................
      </soap:Header>  
      <soap:Body>  
....................
      </soap:Body>  
</soap:Envelope>  

就是soap:Envelope     中的那些
看着象JDOM的namespace     但实际上不是

[解决办法]
看看soap协议，谢谢！