import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
import javax.xml.soap.*;
import java.net.URL;

public class form_xml extends HttpServlet {    
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        //подключение к БД, получение данных
        //формирование XML на основе этих данных
        
try {   
           //Create a SOAPConnection   
           SOAPConnectionFactory factory = SOAPConnectionFactory.newInstance();//
           SOAPConnection connection = factory.createConnection(); //
 
           //Create a SOAPMessage
           MessageFactory messageFactory = MessageFactory.newInstance();//
           SOAPMessage message = messageFactory.createMessage();//
           SOAPPart  soapPart = message.getSOAPPart();//
           SOAPEnvelope envelope = soapPart.getEnvelope();//
//           SOAPHeader header = envelope.getHeader();
           SOAPBody body = envelope.getBody();//
//           header.detachNode();
 
           //Create a SOAPBodyElement
           Name bodyName = envelope.createName("GetLastTradePrice",  "m", "http://192.168.100.2");//
           SOAPBodyElement bodyElement = body.addBodyElement(bodyName);//
           
           bodyElement.addTextNode("some-xml-text");//!!!
           //Insert Content
//           Name name = envelope.createName("symbol");
//           SOAPElement symbol = bodyElement.addChildElement(name);
//           symbol.addTextNode("SUNW");
 
           // Create an endpint point which is either URL or String type
           URL endpoint = new URL("http://192.168.100.2/server_2/getXML");//
          
           //Send a SOAPMessage (request) and then wait for SOAPMessage (response)
           SOAPMessage soapresponse= connection.call(message, endpoint);//

           // Close the SOAPConnection
           connection.close();//

       } catch (Exception e) {
           System.out.println(e.getMessage());
       }

import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
import javax.xml.soap.*;
import java.net.URL;

public class form_xml extends HttpServlet {
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
//подключение к БД, получение данных
//формирование XML на основе этих данных

try {
SOAPConnectionFactory factory = SOAPConnectionFactory.newInstance();
SOAPConnection connection = factory.createConnection(); 

MessageFactory messageFactory = MessageFactory.newInstance();
SOAPMessage message = messageFactory.createMessage();
SOAPPart soapPart = message.getSOAPPart();
SOAPEnvelope envelope = soapPart.getEnvelope();
SOAPBody body = envelope.getBody();

Name bodyName = envelope.createName("GetLastTradePrice", "m", "http://192.168.100.2");
SOAPBodyElement bodyElement = body.addBodyElement(bodyName);
bodyElement.addTextNode(myXMLText);

URL endpoint = new URL("http://192.168.100.2/server_2/getXML");
SOAPMessage soapresponse= connection.call(message, endpoint);

connection.close();

} catch (Exception e) {
System.out.println(e.getMessage());
}

public class get_xml extends HttpServlet {
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
      //получение SOAP, извлечение XML. Это и непонятно

      //парсинг XML. Это я осилю
      //работа с БД Это тоже ясно
}
}