與mysql，判斷能否登錄帳號密碼
阿新 • • 發佈：2017-11-29
cte odin har lose script tin this 4.0 result
- <%@ page language="java" import="java.sql.*" contentType="text/html;charset=utf-8"%>
- <%
- String path = request.getContextPath();
- String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
- %>
- <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
- <html>
- <head>
- <base href="<%=basePath%>">
- <title>My JSP ‘check.jsp‘ starting page</title>
- <meta http-equiv="pragma" content="no-cache">
- <meta http-equiv="cache-control" content="no-cache">
- <meta http-equiv="expires" content="0">
- <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
- <meta http-equiv="description" content="This is my page">
- <!--
- <link rel="stylesheet" type="text/css" href="styles.css">
- -->
- </head>
- <body>
- <%
- request.setCharacterEncoding("utf-8");
- String users=request.getParameter("username");
- String pass=request.getParameter("pwd");
- boolean flag=false;
- PreparedStatement sql=null;
- ResultSet rs=null;
- Connection conn=null;
- %>
- <%
- String driver = "com.mysql.jdbc.Driver";
- String url = "jdbc:mysql://127.0.0.1:3307/login";
- String use = "root";
- String password = "960404";
- Class.forName(driver);
- conn= DriverManager.getConnection(url,use,password);
- sql =conn.prepareStatement("select * from student where username=? and password=?");
- sql.setString(1,users);
- sql.setString(2,pass);
- rs=sql.executeQuery();
- if (rs.next()) {
- flag=true;
- }
- rs.close();
- sql.close();
- conn.close();
- %>
- <!-- 判斷是否是正確的登錄用戶 -->
- <% if (flag==true){ %>
- <jsp:forward page="show.jsp"/>
- <%}
- else
- if (flag==false){
- %>
- <jsp:forward page="login_fali.jsp"/>
- <%} %>
- </body>
- </html>
與mysql，判斷能否登錄帳號密碼