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  • JSP第六周作业

    <%@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>
    <%@ page language="java" contentType="text/html" import="java.util.*"  pageEncoding="utf-8"%>
    
    
    <%
        String path = request.getContextPath();
        String basePath = request.getScheme() + "://"
                + request.getServerName() + ":" + request.getServerPort()
                + path + "/";
    %>
    <%
        String str = request.getParameter("address");
        String pwd = request.getParameter("password");
        if (null != str) {
            if (str.equals("ysp") && pwd.equals("123")) {
                pageContext.forward("MyJsp1.jsp");
            } else {
                out.println("登录失败,请重新登录!");
            }
        }
    %>
    
    <html>
    <head>
    <form action="" method="post">
        <br> 账号: <input type="text" name="address" size="20"><br>
        密码: <input type="password" name="password" size="21"><br>
        验证码: <input type="text" name="2907" size="17"> <img id="yzmtp"
            src="aaa/23.jpg" width="120px" height="70px" />换一张<br> <input
            type="submit" value="登录" name="a">
    </form>
    </head>
    
    <body style="background:url(aaa/1.jpg)";>
    
    
    
    </body>
    </html>
    
    <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
    <%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
    %>
    <html>
      <head> 
      </head>
      <body style="background:url(aaa/1.jpg)">
            欢迎ysp登录
    <br>
    </body>
    </html>
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  • 原文地址:https://www.cnblogs.com/wxyailjy/p/14656184.html
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