Configuring SSL with Eclipse

Nelo Angelo

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posted 12 years ago

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Hello everyone,
I have been trying to configure SSL with Eclipse, but I keep getting the Page Cannot Be Displayed message. I have successful configured SSL with Tomcat as per the Tomcat 6.0 documentation.

The example that I created runs successful on my web-browser(outside Eclipse) but generates This Program Cannot Display the Webpage error message in Eclipse.
Here's the code for my example:-

Login.html

usingHttpsForm.html

UsingHttpsServlet.java

package com.example.web;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet implementation class UsingHttpsServlet
 */
public class UsingHttpsServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public UsingHttpsServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
	}

/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		String name=request.getParameter("userName");
		String pass=request.getParameter("userPassword");
		
		if(name.equals(pass)){
			response.sendRedirect("Success.jsp");
		}
		else{
			response.sendRedirect("usingHttpsForm.html");
		}
	}

}

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>UsingHTTPS</display-name>
  <welcome-file-list>
    <welcome-file>Login.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
  <servlet>
    <description></description>
    <display-name>UsingHttpsServlet</display-name>
    <servlet-name>UsingHttpsServlet</servlet-name>
    <servlet-class>com.example.web.UsingHttpsServlet</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>UsingHttpsServlet</servlet-name>
    <url-pattern>/usinghttpsservlet</url-pattern>
  </servlet-mapping>
  
 <security-constraint>
  <web-resource-collection>
    <web-resource-name>Restricted URLs</web-resource-name>
    <url-pattern>*.jsp</url-pattern>
	<url-pattern>*.html</url-pattern>
    <http-method>GET</http-method>
    <http-method>POST</http-method>
  </web-resource-collection>
  <user-data-constraint>
    <transport-guarantee>CONFIDENTIAL</transport-guarantee>
  </user-data-constraint>
</security-constraint>
  
</web-app>

Is there any other way to configure SSL in Tomcat? I tried to changed the server.xml of the default server in Eclipse workspace but after that the server failed to start in Eclipse. Please advice.

I love java but she hates me... :'(

Tim Holloway

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posted 12 years ago

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The JEE version of Eclipse comes with WTP. WTP provides the ability to launch and control a copy of Tomcat. However, it does it very badly. I hate it. I hate it so much that I use the sysdeo Tomcat control plugin, instead.

WTP doesn't actually look at your server.xml every time you start Tomcat. Instead, it makes a private copy of server.xml and some, but not all, of your Tomcat config files. If you change the Tomcat server.xml, you then have to go in and give WTP a good, swift kick to get the changes to take effect. And, because WTP is making all sorts of simplistic assumptions about what's going on inside Tomcat, it can easily mess things up.

The secret of how to be miserable is to constantly expect things are going to happen the way that they are "supposed" to happen.

You can have faith, which carries the understanding that you may be disappointed. Then there's being a willfully-blind idiot, which virtually guarantees it.

Nelo Angelo

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posted 12 years ago

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Pheew, after a while the problem is now resolved. Changes to the server.xml (Tomcat) had already been made. I just created a new server within Eclipse. It imported the exact copy of Tomcat's server.xml. So, finally, SSL is working with eclipse. Thanks for the reply.

I love java but she hates me... :'(

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