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59
WebRoot/login.jsp
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59
WebRoot/login.jsp
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<%@ page language="java" import="java.sql.*" contentType="text/html;charset=utf-8"%>
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<%
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String path = request.getContextPath();
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String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
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%>
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<base href="<%=basePath%>">
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<title>My JSP 'check.jsp' starting page</title>
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<meta http-equiv="pragma" content="no-cache">
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<meta http-equiv="cache-control" content="no-cache">
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<meta http-equiv="expires" content="0">
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<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
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<meta http-equiv="description" content="This is my page">
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<!--
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<link rel="stylesheet" type="text/css" href="styles.css">
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-->
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</head>
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<body>
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<%
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request.setCharacterEncoding("utf-8");
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String users=request.getParameter("inputUser");
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String pass=request.getParameter("inputPassword");
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boolean flag=false;
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PreparedStatement sql=null;
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ResultSet rs=null;
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Connection conn=null;
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%>
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<%
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String driver = "com.mysql.jdbc.Driver";
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String url="jdbc:mysql://localhost:3306/db_school";
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String use = "root";
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String password = "";
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Class.forName(driver);
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conn= DriverManager.getConnection(url,use,password);
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sql =conn.prepareStatement("select * from user where userName=? and password=?");
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sql.setString(1,users);
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sql.setString(2,pass);
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rs=sql.executeQuery();
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if (rs.next()) {
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flag=true;
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}
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rs.close();
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sql.close();
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conn.close();
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%>
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<!-- 判断是否是正确的登录用户 -->
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<% if (flag==true){ %>
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<jsp:forward page="login_show.jsp"/>
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<%}
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else
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if (flag==false){
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%>
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<jsp:forward page="login_fail.jsp"/>
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<%} %>
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</body>
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</html>
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