jsp:useBean找不到类,为什么呢?
The value for the useBean class attribute login.loginbean is invalid.
在网上搜了好多帖子也不能解决,苦恼
eclipse里的tomcat项目,目录如下:
项目名
  |--web
       |--login
            |--logincheck.jsp
       |--index.jsp
  |--WEB-INF
       |--classes
            |--login
                 |--loginbean.class
       |--lib
       |--src
            |--login
                 |--loginbean.java
  |--work
下面贴代码:
logincheck.jsp
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" 
errorPage="" %>
<%@ page import="login.*" %>
<jsp:useBean id="userbean" class="login.loginbean" scope="page">
<jsp:setProperty name="userbean" property="*"/>
</jsp:useBean>
<%
if (user.checklogin())  
{
String username = request.getParameter("username");
session.setAttribute("username", username);
%>
<jsp:forward page="success.jsp"/>
<%
}  
else  
{
%>
  <jsp:forward page="failure.jsp"/>
<%
}
%>
loginbean.java
package login;
import java.sql.*;
public class loginbean  
{
	private String username;
	private String password;
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}
	public loginbean(){  
		username="";  
		password="";  
		}  
	public boolean checklogin()  
	{
		boolean loginflag = false;
		Connection con = null;
		Statement stmt = null;
		ResultSet rs = null;
		try  
		{
			Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
			con = DriverManager.getConnection("jdbc:microsoft:sqlserver://10.54.0.134:1433;DatabaseName=sshtest","sa","oa");
			stmt = con.createStatement();
			String sql ="select * from tbluser where loginid='"+username+"' and passwd='"+password+"'";
             rs = stmt.executeQuery(sql);
			while (rs.next())  
			{
				if(password.equals(rs.getString("passwd")))
				{
					loginflag=true;
				}
			}
		}  
		catch (Exception sqlex1)  
		{
			sqlex1.printStackTrace();
		}  
		finally  
		{
			if (con != null)  
			{
				try  
				{
					con.close();
				}  
				catch (
SQLException sqlex2)  
				{
					sqlex2.printStackTrace();
				}
			}
		}
	return loginflag;
	}	
}
------解决方案--------------------
你把logincheck.jsp放在和WEB-INF同级目录下试一下.
------解决方案--------------------
那样写javabean是没有问题的,我觉得19楼说的是正解。为避免jsp文件都放到根目录下,可以在WEB-INF下建立个目录,全部放那里面啊~~只是在转页面的时候要注意点添加目录而已
------解决方案--------------------
|--WEB-INF  
     |--classes  
         |--login  
               |--loginbean.class  
     |--lib  
     |--src