admincheck.jsp

这个源码是一个论坛的源码,包括登陆,搜索和发表等.不过还有些功能不是很完善.

<%@ page contentType="text/html;charset=gb2312" %>
<%@ include file="conn.jsp"%>
<%request.setCharacterEncoding("GB2312");
String username=request.getParameter("username");
String userpassword=request.getParameter("userpassword");
if(username==null){
 out.print("<SCRIPT language=JavaScript>alert('请输入您的登录名！');");
   out.print("history.go(-1);</SCRIPT>"); 
}
if(userpassword==null){
 out.print("<SCRIPT language=JavaScript>alert('请输入密码！');");
   out.print("history.go(-1);</SCRIPT>"); 
}
String sql="select * from scott.bbsuser where username='"+username+"' and userpassword = '" + userpassword + "'"; 
ResultSet rs=stmt.executeQuery(sql); 
   if(rs.next()){
	   session.putValue("username",username); 
	   response.sendRedirect("index.jsp"); 
   }else{
 out.print("<SCRIPT language=JavaScript>alert('密码错误！');");
   out.print("history.go(-1);</SCRIPT>"); 
   }
rs.close();
%>