无法获取到sql的数据，请老师指点。

/mybatisDemo1/src/main/resources/mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
  PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
  "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    
  <properties resource="db.properties"></properties>

  <environments default="development">
    <environment id="development">
      <transactionManager type="JDBC"/>
      <dataSource type="POOLED">
        <property name="driver" value="${driver}"/>
        <property name="url" value="${url}"/>
        <property name="username" value="${username}"/>
        <property name="password" value="${password}"/>
      </dataSource>
    </environment>
    <environment id="product">
      <transactionManager type="JDBC"/>
      <dataSource type="POOLED">
        <property name="driver" value="${driver}"/>
        <property name="url" value="${url}"/>
        <property name="username" value="${username}"/>
        <property name="password" value="${password}"/>
      </dataSource>
    </environment>
    <environment id="test">
      <transactionManager type="JDBC"/>
      <dataSource type="POOLED">
        <property name="driver" value="${driver}"/>
        <property name="url" value="${url}"/>
        <property name="username" value="${username}"/>
        <property name="password" value="${password}"/>
      </dataSource>
    </environment>
  </environments>
  <mappers>
    <mapper resource="mapper/usersMapper.xml"/>
  </mappers>
</configuration>

/mybatisDemo1/pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.rhm.mb</groupId>
    <artifactId>mybatisDemo1</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>mybatisDemo1 Maven Webapp</name>
    <url>http://maven.apache.org</url>
    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
            <scope>provided</scope>
        </dependency>
        
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.13</version>
        </dependency>
        
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.6</version>
        </dependency>
        
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
        </dependency>
        
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
    </dependencies>
    <build>
        <finalName>mybatisDemo1</finalName>
    </build>
</project>

/mybatisDemo1/src/main/resources/mapper/usersMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
  PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
  "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.rhm.entity.Users">
    <select id="findAll" resultType="com.rhm.entity.Users">
        select * from users
    </select>
</mapper>

/mybatisDemo1/src/main/java/com/rhm/entity/Users.java

package com.rhm.entity;

import java.util.Date;

public class Users {
    private Integer id;
    private String username;
    private String userpass;
    private String nickname;
    private Integer age;
    private String gender;
    private String phone;
    private String email;
    private Date createTime;
    private Date updateTime;
    private Date lastLogin;
    private Integer userStatus;
    private String remark;
    
    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public String getUserpass() {
        return userpass;
    }
    public void setUserpass(String userpass) {
        this.userpass = userpass;
    }
    public String getNickname() {
        return nickname;
    }
    public void setNickname(String nickname) {
        this.nickname = nickname;
    }
    public Integer getAge() {
        return age;
    }
    public void setAge(Integer age) {
        this.age = age;
    }
    public String getGender() {
        return gender;
    }
    public void setGender(String gender) {
        this.gender = gender;
    }
    public String getPhone() {
        return phone;
    }
    public void setPhone(String phone) {
        this.phone = phone;
    }
    public String getEmail() {
        return email;
    }
    public void setEmail(String email) {
        this.email = email;
    }
    public Date getCreateTime() {
        return createTime;
    }
    public void setCreateTime(Date createTime) {
        this.createTime = createTime;
    }
    public Date getUpdateTime() {
        return updateTime;
    }
    public void setUpdateTime(Date updateTime) {
        this.updateTime = updateTime;
    }
    public Date getLastLogin() {
        return lastLogin;
    }
    public void setLastLogin(Date lastLogin) {
        this.lastLogin = lastLogin;
    }
    public Integer getUserStatus() {
        return userStatus;
    }
    public void setUserStatus(Integer userStatus) {
        this.userStatus = userStatus;
    }
    public String getRemark() {
        return remark;
    }
    public void setRemark(String remark) {
        this.remark = remark;
    }
}

/mybatisDemo1/src/main/java/com/rhm/listener/InitSqlSessionListener.java

package com.rhm.listener;

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

import com.rhm.utils.SqlSessionFactoryUtils;

@WebListener
public class InitSqlSessionListener implements ServletContextListener{

    public void contextInitialized(ServletContextEvent sce) {
        System.out.println("容器加载中。。。");
        // 初始化SqlSessionFactory对象
        SqlSessionFactoryUtils.initSqlSessionFactory();
    }

    public void contextDestroyed(ServletContextEvent sce) {
        System.out.println("容器销毁中。。。");
        // 关闭SqlSessionFactory对象
        SqlSessionFactoryUtils.close();
    }

}

/mybatisDemo1/src/main/java/com/rhm/utils/SqlSessionFactoryUtils.java

package com.rhm.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-config.xml";
    
    private static SqlSessionFactory sqlSessionFactory;
    
    private static ThreadLocal<SqlSession> threadLocal = new ThreadLocal<SqlSession>();
    
    public static void initSqlSessionFactory() {
        try {
            InputStream is = Resources.getResourceAsStream(RESOURCE);
            sqlSessionFactory = new SqlSessionFactoryBuilder().build(is);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    
    public static SqlSessionFactory getSqlSessionFactory() {
        return sqlSessionFactory;
    }
    
    public static void close() {
        SqlSession session = threadLocal.get();
        if (session != null) {
            session.close();
            threadLocal.set(null);
        }
    }
}

/mybatisDemo1/src/main/java/com/rhm/dao/UsersDAO.java

package com.rhm.dao;

import com.rhm.entity.Users;

import java.util.List;

import org.apache.ibatis.session.SqlSession;
import com.rhm.utils.SqlSessionFactoryUtils;

public class UsersDAO {
    private SqlSession sqlSession = SqlSessionFactoryUtils.getSqlSessionFactory().openSession();
    private List<Users> list;
    
    public List<Users> findAll() {
        try {
            list = sqlSession.selectList("findAll");
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            sqlSession.close();
        }
        return list;
    }
}

/mybatisDemo1/src/main/java/com/rhm/servlet/UsersFindServlet.java

package com.rhm.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.rhm.dao.UsersDAO;
import com.rhm.entity.Users;

@WebServlet("/index")
public class UsersFindServlet extends HttpServlet {
    
    private UsersDAO usersDAO = 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 = usersDAO.findAll();
        req.setAttribute("usersList", list);
        req.getRequestDispatcher("index.jsp").forward(req, resp);
    }

}

/mybatisDemo1/src/main/webapp/home.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title></title>
</head>
<body>
<%
    response.sendRedirect("/index");
%>
</body>
</html>

/mybatisDemo1/src/main/webapp/index.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
    <title>用户管理中心</title>
    <link rel="stylesheet" href="lib/bootstrap-3.3.7-dist/css/bootstrap.min.css">
    <script src="lib/2.2.4/jquery-1.12.4.min.js"></script>
    <script src="lib/bootstrap-3.3.7-dist/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
    <div class="row">
        <div class="page-header">
            <h1>后台管理系统 <small>用户数据管理中心</small></h1>
        </div>
    </div>
    <div class="row">
        <div class="jumbotron">
            <h1>MyBatis基础入门！</h1>
            <p>通过一个项目来完成基础部门的学习</p>
            <p><a class="btn btn-primary btn-lg" href="#" role="button">more</a></p>
        </div>
    </div>
    <div class="row">
        <table class="table table-hover table-striped">
            <tr>
                <th>用户编号</th>
                <th>登录账号</th>
                <th>用户昵称</th>
                <th>用户年龄</th>
                <th>邮箱</th>
                <th>联系方式</th>
                <th>账号创建时间</th>
                <th>用户状态</th>
                <th>操作</th>
            </tr>
            <c:forEach var="user" items="${usersList}">
            <tr>
                <td>${user.id}</td>
                <td>${user.username}</td>
                <td>${user.nickname}</td>
                <td>${user.email}</td>
                <td>${user.phone}</td>
                <td>${user.createTime}</td>
                <c:if test="${user.userStatus == 0}">
                    <td>正常</td>
                </c:if>
                <c:if test="${user.userStatus == 1}">
                    <td>锁定</td>
                </c:if>
                <c:if test="${user.userStatus == 2}">
                    <td>删除</td>
                </c:if>
                <td>
                    <a href="">查看</a>
                    <a href="">修改</a>
                    <a href="">删除</a>
                </td>
            </tr>
            </c:forEach>
        </table>
    </div>
</div>
</body>
</html>

/mybatisDemo1/src/main/webapp/WEB-INF/web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         id="WebApp_ID" version="3.1">
    <display-name>mybatisDemo1</display-name>

    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
        <welcome-file>index.htm</welcome-file>
        <welcome-file>home.jsp</welcome-file>
        <welcome-file>default.html</welcome-file>
        <welcome-file>default.htm</welcome-file>
        <welcome-file>default.jsp</welcome-file>
    </welcome-file-list>

</web-app>

所有的代码都在这里了，就是无法获取到sql的数据，请老师指点。排查了2天了。