后端登录
<%@ page import="wangzhan.Thesql" %>
<%@ page import="com.mysql.cj.Session" %>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title></title>
</head>
<%
Thesql sql=new Thesql();
request.setCharacterEncoding("utf-8");
String id_=request.getParameter("id_");
String password=request.getParameter("password");
if(id_!=null)
if(id_.length()==8){
if(sql.stu_IsPass(id_, password)){
HttpSession httpSession= request.getSession();
httpSession.setAttribute("id_",id_);
%>
<jsp:forward page="STU.jsp">
<jsp:param value="<%=id_ %>" name="id"/>
<jsp:param value="student" name="identity"/>
</jsp:forward>
<%
}
}
else if(id_.length()==6){
if(sql.tea_IsPass(id_, password)){
HttpSession httpSession= request.getSession();
httpSession.setAttribute("id_",id_);
%>
<jsp:forward page="TEA.jsp">
<jsp:param value="<%=id_%>" name="id_"/>
<jsp:param value="teacher" name="identity"/>
</jsp:forward>
<%
}
}
else if(id_.length()==3){
if(sql.root_IsPass(id_, password)){
HttpSession httpSession= request.getSession();
httpSession.setAttribute("id_",id_);
%>
<jsp:forward page="all_Root.jsp">
<jsp:param value="<%=id_ %>" name="id"/>
<jsp:param value="root" name="identity"/>
</jsp:forward>
<%
}
}
%><script type="text/javascript">
alert('请输入正确密码或是账号。');
</script>
<meta http-equiv="refresh" content="1;url=Login.jsp" >
<%
%>
<body>
</body>
</html>