📄 confirm.jsp
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<html>
<head>
<title>登录检查</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<body>
<%@ page language="java" import="java.sql.*" %>
<jsp:useBean id="OPDB" scope="page" class="database.OPDB" />
<%
OPDB.connection();
Connection conn =OPDB.getConn();
String regName=request.getParameter("loginName").trim();
String loginName=OPDB.AsciiToChineseString(regName);
String loginPassword=request.getParameter("loginPassword").trim();
String Name=request.getParameter("userName").trim();
String userType = request.getParameter("userType");
String regname=null;
/*String chatName = (String) session.getValue("Name");
if (chatName != null) {
out.print("<script>alert(\"请先退出，再登陆！\");window.close();</script>");
return;
}
*/
if((regName.length()!=0)) {
String sql="select userlevel,experience from t_bbs_user where username='"+loginName+"' and password='"+loginPassword+"' and userType = '" + userType + "'";
ResultSet RS = OPDB.select(conn,sql);
if(RS.next()) {
if (userType.equals("Y")) {
regname = regName + "(会员)";
}
else {
regname = regName;
}
String userlevel = OPDB.GBK(RS.getString("userlevel"));
String experience = RS.getString("experience");
session.putValue("userlevel",userlevel);
session.putValue("experience",experience);
RS.close();
}
else {
RS.close();
out.print("<script>alert(\"用户名/密码错!\");window.close();</script>");
return;
}
}
else {
if((Name.length()<1)||(Name.length()>10)) {
out.print("<script>alert(\"游客名不能超过6个字长!\");window.close();</script>");
return;
}
Character c=new Character(' ');
for(int i=0;i<Name.length();i++) {
if(Name.charAt(i) == c.charValue()) {
out.print("<script>alert(\"名字中间不能有空格!\");window.close();</script>");
return;
}
}
}
synchronized (application) {
Vector UserName=null;
UserName= (Vector)application.getAttribute("UserName");
if(UserName==null) {
UserName= new Vector(30,10);
}
if(regname!=null ) {
UserName.addElement(regname);
session.putValue("Name", regname);
}
else if(UserName.contains(Name)) {
out.print("<script>alert(\"你的名字正在被人使用!\");window.close();</script>");
return;
}
else {
UserName.addElement(Name+"(过客)");
session.putValue("Name", Name+"(过客)");
}
application.setAttribute("UserName",UserName);
out.print("<script>window.location=\"chat.jsp\"</script>");
}
%>
</body>
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