📄 logincheck.jsp

📁 多功能学生宿舍管理系统分布式体系结构

💻 JSP

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<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>login</title>
</head>
<body>
<jsp:useBean id="DB" class="myweb.DBContent.DBContent"></jsp:useBean>
<jsp:useBean id="st" class="myweb.bean.userlogin"/>
<jsp:setProperty name="st" property="*"/>
<%
String user=st.getName();
String pwd=st.getPassword();
String sql="select * from users where name='"+user+"' and password='"+pwd+"'";
ResultSet rs=DB.select(sql);
String adm="m";
String use="n";
String rep="r";
if(rs.next())
{
	if((rs.getString("manager").trim()).equals(adm)){
	   session.setAttribute("user",user);
	   response.sendRedirect("admin.jsp");
	}
	else if((rs.getString("manager").trim()).equals(use))
	{
	session.setAttribute("user",user); 
	response.sendRedirect("../user/st_user.jsp");
	}else if((rs.getString("manager").trim()).equals(rep))
	{
	session.setAttribute("user",user); 
	response.sendRedirect("../re_user/re_user.jsp");
	}
	else 
       out.print("<script>alert('对不起,你的用户名或密码有错误.请重新输入!');history.back()</script>");
	  //response.sendRedirect("Error.jsp");
}
else
	//response.sendRedirect("Error.jsp");
	out.print("<script>alert('对不起,你的用户名或密码有错误.请重新输入!');history.back()</script>");
	//rs.close();
	//DB.close();
 
%>
<%--out.println("welcome to yuou!");--%>
</body>
</html>

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