eclipse中maven构建mybatis项目报错，实在找不到问题

eclipse中用maven建mybatis项目，连接数据库的时候报错能排查的都看了实在不会了

mybatis-cofig里面的内容

configuration
  PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
  "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
  <environments default="development">
    <environment id="development">
      <transactionManager type="JDBC"/>
      <dataSource type="POOLED">
        <property name="driver" value="com.mysql.jdbc.Driver"/>
        <property name="url" value="jdbc:mysql://127.0.0.1:3306/a1"/>
        <property name="username" value="root"/>
        <property name="password" value="123456"/>
      dataSource>
    environment>
  environments>
  <mappers>
    <mapper resource="sql.xml"/>
  mappers>
configuration>

sql.xml里面的内容:

mapper
  PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
  "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="test">
  <select id="selectAll" resultType="maven1.users">
    select * from users where u_name = root;
  select>
mapper>

这是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>4.0.0modelVersion>
  <groupId>maven_demo10groupId>
  <artifactId>maven1artifactId>
  <packaging>warpackaging>
  <version>0.0.1-SNAPSHOTversion>
  <name>maven1 Maven Webappname>
  <url>http://maven.apache.orgurl>
  <dependencies>
    <dependency>
      <groupId>junitgroupId>
      <artifactId>junitartifactId>
      <version>3.8.1version>
      <scope>testscope>
    dependency>
    <dependency>
      <groupId>org.mybatisgroupId>
      <artifactId>mybatisartifactId>
      <version>3.5.5version>
    dependency>
    <dependency>
      <groupId>mysqlgroupId>
      <artifactId>mysql-connector-javaartifactId>
      <version>5.1.10version>
    dependency>
  dependencies>
  
  <build>
  <finalName>maven1finalName>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.pluginsgroupId>
            <artifactId>maven-compiler-pluginartifactId>
            <version>3.8.1version>
            <configuration>
                <source>1.8source>
                <target>1.8target>
            configuration>
        plugin>
        <plugin>
            <groupId>org.apache.maven.pluginsgroupId>
            <artifactId>maven-war-pluginartifactId>
            <version>3.3.1version>
        plugin>
plugins>
  build>
project>

建一个user类接收结果集

package maven1;

public class users {
    String username;
    String password;
    @Override
    public String toString() {
        return "users [username=" + username + ", password=" + password + "]";
    }
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
    
}

package maven1;

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

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

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 Main{
    public static void main(String[] args) throws IOException {
        String resource = "mybatis-config.xml";
        InputStream inputStream = Resources.getResourceAsStream(resource);
        SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
        
        SqlSession sqlSession=sqlSessionFactory.openSession();
        sqlSession.selectList("test.selectAll");//这一行报错了
    }
    
}

这是数据库里面的表

上边报错信息是什么，连接数据库失败了么？

......mybatis和mysql配置冲突