hi,
I'd rather not used JSP at this point.
I'm trying this with a sample code from the book "Building Portals with the
Java Portlet API" (Apress), by Jeff Linwood & Dave Minter.
Here is the full listing of the portlet class:
| package com.portalbook.portlets;
|
| import java.io.IOException;
| import java.io.Writer;
|
| import javax.portlet.ActionRequest;
| import javax.portlet.ActionResponse;
| import javax.portlet.GenericPortlet;
| import javax.portlet.PortletException;
| import javax.portlet.RenderRequest;
| import javax.portlet.RenderResponse;
|
| public class AdvancedPortlet extends GenericPortlet
| {
|
| protected void doEdit(
| RenderRequest renderRequest,
| RenderResponse renderResponse)
| throws PortletException, IOException
| {
| renderResponse.setContentType("text/html");
|
| Writer writer = renderResponse.getWriter();
|
| //get the existing parameters to use as defaults.
| String title = renderRequest.getParameter("title");
| String contents = renderRequest.getParameter("contents");
|
| if (title == null)
| {
| title = "";
| }
|
| if (contents == null)
| {
| contents = "";
| }
|
| writer.write("<H1>Portlet Settings</H1>");
| writer.write("<FORM ACTION=");
| writer.write(renderResponse.createActionURL().toString());
| writer.write(">");
|
| writer.write(
| "Title: <INPUT TYPE=text NAME=title VALUE='" + title + "'
SIZE=25>");
| writer.write(
| "Contents: <INPUT TYPE=text NAME=contents VALUE= '"
| + contents
| + "' SIZE=25>");
| writer.write("<P>");
| writer.write("<INPUT TYPE=submit>");
| writer.write("</FORM>");
|
| }
|
| protected void doHelp(
| RenderRequest renderRequest,
| RenderResponse renderResponse)
| throws PortletException, IOException
| {
| //return a helpful message
| renderResponse.setContentType("text/html");
|
| Writer writer = renderResponse.getWriter();
| writer.write(
| "This portlet allows you to change its content and title.");
| }
|
| protected void doView(
| RenderRequest renderRequest,
| RenderResponse renderResponse)
| throws PortletException, IOException
| {
| renderResponse.setContentType("text/html");
| Writer writer = renderResponse.getWriter();
| String contents = renderRequest.getParameter("contents");
| if (contents != null)
| {
| writer.write(contents);
| }
| else
| {
| //return the default contents
| writer.write("This is the default portlet contents. To change
");
| writer.write("this message, edit the portlet's settings.");
| }
|
| writer.write("<p>");
| writer.write(
| "<IMG SRC="
| + renderResponse.encodeURL(
| renderRequest.getContextPath() + "/images/picture.jpg")
| + ">");
|
| writer.write("<p>");
| writer.write(
| "<IMG SRC=http://www.greenninja.com/images/teton1-small.jpg>");
| }
|
| protected String getTitle(RenderRequest renderRequest)
| {
| String title = renderRequest.getParameter("title");
| if (title != null)
| {
| return title;
| }
| //else return a default title, if we don't have one set yet.
| return "Advanced Portlet";
| }
|
| public void processAction(
| ActionRequest actionRequest,
| ActionResponse actionResponse)
| throws PortletException, IOException
| {
| //check for parameters
| String title = actionRequest.getParameter("title");
| if (title != null)
| {
| actionResponse.setRenderParameter("title", title);
| }
|
| String contents = actionRequest.getParameter("contents");
| if (contents != null)
| {
| actionResponse.setRenderParameter("contents", contents);
| }
| }
|
| }
|
The doEdit() section works only if I apply the work-around described in the 1st
event.
thanx :)
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