查询没有数据？

package dao;

import java.util.List;
import org.apache.ibatis.session.SqlSession;
import com.entiry.Users;
import utils.SqlSessionFactoryUtils;

public class UsersDao {
	private SqlSession session=SqlSessionFactoryUtils.getFactory().openSession();
	private List<Users> list;
	
	public List<Users> findAll(){
		try {
			list = session.selectList("findAll");
		} catch (Exception e) {
			// TODO: handle exception
		}finally{
			session.close();
		}
		return list;
		
	}
}

package listener;

import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.annotation.WebListener;
import utils.SqlSessionFactoryUtils;

@WebListener
public class SqlSessionFacteryListener implements ServletContextListener{

	public void contextInitialized(ServletContextEvent sce) {
		System.out.println("SqlSessionFactory加载中");
		SqlSessionFactoryUtils.initSqlSessionFactory();
	}
	public void contextDestroyed(ServletContextEvent sce) {
		System.out.println("Session销毁中");
		SqlSessionFactoryUtils.close();
	}
}

package utils;

import java.io.IOException;
import java.io.InputStream;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

public class SqlSessionFactoryUtils {
	private static String resource = "mybatis-c.xml";
	
	private static SqlSessionFactory factory;
	
	private static ThreadLocal<SqlSession> threadlocal = new ThreadLocal<SqlSession>();
	
	public static void initSqlSessionFactory(){
		try {
			InputStream is = Resources.getResourceAsStream(resource);
			factory = new SqlSessionFactoryBuilder().build(is);
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
	
	public static SqlSessionFactory getFactory(){
		return factory;
	}
	
	public static void close(){
		SqlSession session = threadlocal.get();
		if(session != null){
			session.close();
			threadlocal.set(null);
		}
		
	}
}

package servlet;

import java.io.IOException;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.entiry.Users;

import dao.UsersDao;
@WebServlet("/indexc")
public class UsersSelectServlet extends HttpServlet{

	private UsersDao dao = new UsersDao();
	
	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		this.doPost(req, resp);
	}

	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		List<Users> list = dao.findAll();
		if(list==null){
			System.out.println(list);
		}
		req.setAttribute("usersFindALL", list);
		req.getRequestDispatcher("index.jsp").forward(req, resp);
 	}

}

@易达333   您好！请帮忙查看问题出在什么地方，非常感谢。