loginservlet.java

系统包含求职用户和系统管理员两个角色

/*
 * 创建日期 2005-8-28
 *
 * TODO 要更改此生成的文件的模板，请转至
 * 窗口 － 首选项 － Java － 代码样式 － 代码模板
 */
package com.publish.jxc.charpter9;

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

/**
 * @author Administrator
 *
 * TODO 要更改此生成的类型注释的模板，请转至
 * 窗口 － 首选项 － Java － 代码样式 － 代码模板
 */
public class LoginServlet extends HttpServlet {
    private UserXMLAction users;
    
//    private static final String USER_XML_FILE = "data\\users.xml";
    
    public void init(ServletConfig arg0) throws ServletException {
        // TODO 自动生成方法存根
        super.init(arg0);
        users = new UserXMLAction();
        String path = arg0.getServletContext().getRealPath("/");
        users.readXMLFile(path + Utility.Users_XML_File);
    }
    
    protected void doGet(HttpServletRequest arg0, HttpServletResponse arg1)
            throws ServletException, IOException {
        // TODO 自动生成方法存根
        //super.doGet(arg0, arg1);
        doPost(arg0, arg1);
    }
    
    protected void doPost(HttpServletRequest arg0, HttpServletResponse arg1)
            throws ServletException, IOException {
        // TODO 自动生成方法存根
        UserXMLModel user = users.getUser(arg0.getParameter("name"), arg0.getParameter("password"));
        RequestDispatcher rd = null;
        if (user != null)
        {
            arg0.getSession().setAttribute("user", user);
            if (user.getRoles().equals("admin"))
            {
                rd = arg0.getRequestDispatcher(arg1.encodeURL("pages/admin/index.jsp"));
                rd.forward(arg0, arg1);
            }
            else
            {
                rd = arg0.getRequestDispatcher(arg1.encodeURL("pages/index.jsp"));
                rd.forward(arg0, arg1);
            }
        }
        else
        {
            arg1.setContentType("text/html");
            arg1.setCharacterEncoding("gb2312");
            PrintWriter out = arg1.getWriter();
            out.print(Utility.outPrintPage("用户名或者密码错误!", "index.jsp"));
        }
        //super.doPost(arg0, arg1);
    }
    
    protected void service(HttpServletRequest arg0, HttpServletResponse arg1)
            throws ServletException, IOException {
        // TODO 自动生成方法存根
                super.service(arg0, arg1);
    }
    
    
}