----- Original Message -----
Sent: Wednesday, March 13, 2002 6:13
PM
Subject: Help!!! Need an Servlet
Example
Hello everybody,
I've try to find an simple servelt example for am
XML-RPC Server. I found different souces, many of them for an independent
XML-RPC server. I lookup on xml.apache.org, but I could't find anything . I
lookup up , too. at helma.org, and in many other web sites, but nothing. I was
able to run an XML -RPC Client, but XML-RPC Server dosn't work. Here my code
:
import java.io.*;
import
java.util.*;
import javax.servlet.*;
import
javax.servlet.http.*;
import java.util.Vector;
import
helma.xmlrpc.*;
public class ExampleServlet extends
XmlRpcServlet
{
XmlRpcServer xmlrpc;
public void init (ServletConfig
config) throws ServletException {
xmlrpc = new
XmlRpcServer ();
xmlrpc.addHandler ("test", new
NewHandler() );
}
public void doPost (HttpServletRequest
request, HttpServletResponse response) {
try
{
PrintWriter out = response.getWriter()
;
byte[] tempbyte = new byte[1000]
;
tempbyte =
xmlrpc.execute(request.getInputStream());
String temp = new String(tempbyte);
response.setContentType("text/xml");
response.setContentLength(temp.length());
out.println(temp);
} catch (IOException e)
{
System.err.println
("Crud");
e.printStackTrace();
}
}
public void doGet( HttpServletRequest request,
HttpServletResponse response ) {
try
{
response.setContentType
("text/html");
PrintWriter out = new
PrintWriter (response.getWriter(), true);
out.print ("Need to use POST.");
} catch (Exception e)
{
e.printStackTrace();
}
}
public void destroy ()
{
System.out.println ("TestServer
destroyed...");
}
public Object execute (String methodname, Vector
params) {
return "This is a fix string";
}
}
public class NewHandler {
// Simple test
functions
public int intAdd(int arg)
{
return 333;
}
}
I call this code with the folowing html
:
<html>
<BODY>
<FORM
ACTION="http://localhost/servlets/ExampleServlet"
METHOD="POST">
<textarea rows="12"
cols="45">
</textarea>
<INPUT TYPE="SUBMIT"
value="OK">
</FORM>
</BODY>
</html>
with this value for the textarea field
:
<?XML
VERSION="1.0"?>
<methodCall>
<methodName>test.intAdd</methodName>
<params>
<param>
<value><i4>33</i4></value>
</param>
</params>
</methodCall>
and alway I get the following response
:
<?xml version="1.0" encoding="ISO-8859-1" ?>
<value>java.lang.NullPointerException</value>
</member>
</struct>
</value>
</fault>
</methodResponse>
Please help me with any code that work!!!
Thanks in advance,
Raul Gereanu
