welcomeservlet.java

java servlet 一些简单练习

package train.jsp;

import java.io.IOException;

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

public class WelcomeServlet extends HttpServlet {
	int num;

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		String name = request.getParameter("name");
		request.getSession().setAttribute("nameInSession", name);
		request.getRequestDispatcher("login/welcome.jsp").forward(request,
				response);
		ServletContext sc = getServletContext();
		num++;
		sc.setAttribute("count", num);
	}

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

	}

}