loginservlet.java

演示网站Portal单点登陆SSO的简单使用

/** 
 * Created by Guo Shengxing. 
 * User: dev
 * Date: 2007-8-30 
 * 服务器servlet，返回信息 
 */

import java.io.IOException;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class LoginServlet extends HttpServlet {

	private static final long serialVersionUID = 5715637767863066238L;

	public void service(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		HttpSession session = request.getSession();
		String sessionId = session.getId();
		System.out.println("LoginServlet's sessionID:" + sessionId);
		
		String tempNext = "/jsp/welcome.jsp";
		ServletContext context = getServletContext();
		RequestDispatcher tempRd = context.getRequestDispatcher(tempNext);
		if (tempRd == null)
			throw new IOException("找不到文件" + tempNext);
		tempRd.forward(request, response);
	}
}