<%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>Title</title> </head> <body> 您已成功注册！注册信息:用户名：<%=request.getSession().getAttribute("username")%> 密码：<%=request.getSession().getAttribute("password")%> </body> </html> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>Title</title> </head> <body> 注册信息不正确，请重新进行注册！！！ </body> </html> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>Title</title> </head> <body> 登录成功！欢迎您,用户名：<%=request.getSession().getAttribute("username")%> 密码：<%=request.getSession().getAttribute("password")%> </body> </html> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>Title</title> </head> <body> 登录失败,用户名不存在！ </body> </html>
<%@page import="java.nio.channels.SeekableByteChannel"%> <%@ page language="java" contentType="text/html" pageEncoding="UTF-8"%> <%@ page import="java.sql.*"%> <html> <head> <title>www.school.com</title> </head> <body> <%!public static final String DBDRIVER = "com.mysql.jdbc.Driver"; public static final String DBURL = "jdbc:mysql://localhost:3306/jspwork"; public static final String DBUSER = "root"; public static final String DBPASS = "root";%> <% Connection conn = null; PreparedStatement pstmt = null; ResultSet rs = null; boolean flag = false; String name = null; %> <% try { Class.forName(DBDRIVER); conn = DriverManager.getConnection(DBURL, DBUSER, DBPASS); String sql = "SELECT uname FROM num_one WHERE uid=? AND upwd=?"; pstmt = conn.prepareStatement(sql); pstmt.setString(1, request.getParameter("id")); pstmt.setString(2, request.getParameter("password")); rs = pstmt.executeQuery(); if (rs.next()) { name = rs.getString(1); flag = true; } } catch (Exception e) { e.printStackTrace(); } finally { try { if (rs != null) rs.close(); if (pstmt != null) pstmt.close(); if (conn != null) conn.close(); if (flag) { request.getSession().setAttribute("uname",name); request.getRequestDispatcher("ok.jsp").forward(request,response); // request.getRequestDispatcher("ok.jsp").forward(request, response); } else { response.sendRedirect("no.jsp"); } } catch (Exception e) { e.printStackTrace(); } } %> </body> </html>