Unable to compile class for JSP - Java / Web ¿ª·¢
<%@page language="java" contentType="text/html;charset=gb2312" import="java.sql.*"%>
<jsp:useBean id="db" class="wang.connectDB"/>
<%
String name=request.getParameter("username");
String psw=request.getParameter("password");
if(name==null||psw==null||name.equals("")||psw.equals(""))
{
session.setAttribute("error","1");
response.sendRedirect("error.jsp");
}
else
{
try
{
String sql="select * from userlogin where user_name='"+name+"' and user_psw='"+psw+"'";
ResultSet rs=db.executeQuery(sql);
if(rs.next())
{
String priority=rs.getString("user_priority");
Session.setAttribute("username",name);
Session.setAttribute("userpsw",psw);
Session.setAttribute("userid",rs.getString("user_id"));
Session.setAttribute("userpriority",priority);
response.sendRedirect("list.jsp");
}
else
{
Session.setAttribute("error&q
Ïà¹ØÎÊ´ð£º
ÏÖÔÚ»¹ÓкܶàÈ˸㲻¶®PHPºÍJAVA¿ª·¢µÄÐͬOAµ½µ×ÓÐʲô²»Í¬£¬¶Ô×Ô¼ºµ½µ×ÓÐʲôӰÏ죬ÒÔÖÁÓÚ×ö³öÁË´íÎóµÄÑ¡Ôñ¶øêݺ¦ÎÞÇî¡£±ÊÕ߸ù¾ÝÁ½ÖÖ¼¼ÊõµÄÌØµãÖØÐÂÕûÀíÁËÒ»¸ö¶Ô±È£¬¸ø¹ØÐÄÐͬOA¼¼ÊõµÄ¶ÁÕß×ö¸ö²Î¿¼¡£
»ªÌ춯Á¦Ð ......
ÔÚjspÀïÃæ£¬Óøöselect¼ÈÄÜÊäÈë×Ô¶¯Æ¥ÅäÓÖÄÜÏÂÀÑ¡ÔñµÄ£¬ÔõôʵÏÖ£¿
²»»á¡£¡£¡£¡£¡£¡£°ï¶¥ ѧϰ¡£¡£
×Ô¶¯Æ¥ÅäʲôÒâ˼£¿¾ßÌåµã
¾ÍÊÇÄãÊäÈëÄÚÈݺ󣬺ÍÄãÄÚÈÝÏàͬѡÏîµÄ¶¼ÁгöÀ´
ÄãselectÊÇÏÂÀ¿ò¡£¡£ ......
ÎÒÊÇÓÃSTRUTS £¬×öÁËÒ»¸öJSPÒ³Ãæ£¬Ìá½»ºóûÓдæÈëÊý¾Ý¿â¡£
JSP´úÂëÈçÏ£º
aa.jsp´úÂë
<%@ page contentType="text/html;charset=gb2312" language="java"%>
<%@ taglib uri=" ......
ÎÊÌâ1.
ÈçºÎͨ¹ýRandomAccessFileÀàµÄseek()·½·¨½«Ö¸ÕëÒÆ¶¯µ½Îļþĩ⣬ÔÙÓÃwriteChars(String s)½«Êý¾ÝдÈëij¸öÎĵµÎļþ
ÎÊÌâ2.
StringTokenizerÊÇʲô¶«Î÷£¬¸ÉÂïÓõģ¿
ÓÉÓÚСµÜ³õѧjs ......
//Óÿͻ§µÄsessionµÄid½¨Á¢Ò»¸öÁÙʱÎļþ£º
//String tempFileName=(String)session.getId();
String tempFileName = (String)session.getId();
//out.println(& ......