␡
- A Refresher
- The Servlet Class: TransformData
- Helper Class: URLDecoder
- Main Transformation Class: FormDataToXML
- Conclusion
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The Servlet Class: TransformData
The form submitted from the user's Web browser to the Web server is processed by the Java servlet TransformData.class. The class is implemented as follows:
/**
* TransformData servlet
*
* @Author Jasmit Singh Kochhar
*
* @Date Created 08/2001
*
* @Purpose This is the main servlet for transforming
* HTML data into XML strings
*
*/
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class TransformData extends HttpServlet {
public void init (ServletConfig config) throws ServletException {
super.init(config);
} /* init */
/**
* Method: doPost
*
* @Purpose This method receives the request information.
* It then parses the request to determine the values of
* various key attributes and builds an XML Query with the
* remaining attributes by calling the FormDatatoXML class.
*/
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException
{
String QueryString = new String();
// Get the Query String
QueryString = request.getQueryString();
String xmlString;
// Transform into an XML document
FormDataToXML h = new FormDataToXML();
xmlString=h.toXML(htmlString);
// Send the response to the user browser as an XML string
response.setContentType("text/xml");
PrintWriter out = new PrintWriter(response.getOutputStream());
out.println(xmlString);
out.flush();
return;
}
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException
{
doPost(request, response);
}
} /* End of TransformData */