loginservlet.java

来自「网上购书系统！jsp+servlet+jdbc实现！数据库sqlserver2」· Java 代码 · 共 57 行

package myservlet;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import beans.UserBean;
import serives.userserver;


public class LoginServlet extends HttpServlet {
    public LoginServlet() {
        try {
            jbInit();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    private static final String CONTENT_TYPE = "text/html; charset=GBK";
    UserBean bean = new UserBean();
    //Initialize global variables
    public void init() throws ServletException {
    }

    //Process the HTTP Get request
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        request.setCharacterEncoding("GBK");
        bean.setUsername(request.getParameter("uname"));
        bean.setUserpassword(request.getParameter("upassword"));
        response.setContentType(CONTENT_TYPE);
        PrintWriter out = response.getWriter();
        HttpSession session = request.getSession();

        if (userserver.isSelectPassWord(bean) &&
            userserver.isSelectPassWord(bean)) {
            session.setAttribute("name", bean.getUsername());//获得用户的登陆名
            response.sendRedirect("info.jsp");
        } else {
            out.println("该用户不存在或密码不正确!");
        }
    }

    //Process the HTTP Post request
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        doGet(request, response);
    }

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

    private void jbInit() throws Exception {
    }
}