existservlet.java

来自「宠物医院 JSP项目 我是一个初学者 请大家多多指教」· Java 代码 · 共 33 行

package servlet;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;

public class existservlet extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=GBK";

    //Initialize global variables
    public void init() throws ServletException {
    }

    //Process the HTTP Get request
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        response.setContentType(CONTENT_TYPE);
        PrintWriter out = response.getWriter();
        HttpSession session = request.getSession();
        if (session != null) {
            session.invalidate();
            request.getRequestDispatcher("jsp/login.jsp").forward(request,
                    response);
        }
        out.close();
    }

    //Clean up resources
    public void destroy() {
    }
}