maven的配置和一些依赖

<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/xsd/maven-4.0.0.xsd">  <modelVersion>4.0.0</modelVersion>  <groupId>tk.mybatis</groupId>  <artifactId>simple</artifactId>  <version>0.0.1-SNAPSHOT</version>  <packaging>war</packaging>  <properties>  <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>  </properties>  <dependencies>  <!-- mybatis文件 -->    <dependency>    <groupId>org.mybatis</groupId>    <artifactId>mybatis</artifactId>    <version>3.3.0</version>    </dependency>    <!-- 其他依拉 -->    <!-- junit的配置 -->    <dependency>    <groupId>junit</groupId>    <artifactId>junit</artifactId>    <version>4.12</version>    </dependency>    <!-- mysql的配置 -->    <dependency>    <groupId>mysql</groupId>    <artifactId>mysql-connector-java</artifactId>    <version>5.1.38</version>    </dependency>    <!-- slf4j -->    <dependency>    <groupId>org.slf4j</groupId>    <artifactId>slf4j-api</artifactId>    <version>1.7.12</version>    </dependency>    <dependency>    <groupId>org.slf4j</groupId>    <artifactId>slf4j-log412</artifactId>    <version>1.7.12</version>    </dependency>    <!-- log4j -->    <dependency>    <groupId>log4j</groupId>    <artifactId>log4j</artifactId>    <version>1.2.17</version>    </dependency>  </dependencies></project>//创建表的语句CREATE TABLE `test02_first_tb` (`id`  int NOT NULL ,`name`  varchar(50) NULL );//创建create table `country`(`id` int not null auto_increment,`countryname` varchar(255) null,`countrycode` varchar(255) null,primary key (`id`));//创建数据库 create database mybatis default character set utf8 collate utf8-general-ci//插入语句insert country(`id`,`countryname`,`countrycode`)values('1','中国','CN'),('2','美国','US'),('3','尔罗斯','RU'),('4','英国','GB'),('5','法国','FT');//mybatis的配置文件<?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>    <settings>        <setting name="logImpl" value="LOG4J"/>    </settings>    <typeAliases>        <package name="tk.mybatis.simple.model"/>    </typeAliases>    <environments default="development">        <environment id="development">            <transactionManager type="JDBC">                <property name="" value=""/>            </transactionManager>            <dataSource type="UNPOOLED">                <property name="diver" value="com.mysql.jdbc.Driver"/>                <property name="url" value="jdbc:mysql://localhost:3306/mybatis"/>                <property name="username" value="root"/>                <property name="password" value="123356"/>            </dataSource>        </environment>    </environments>    <meppers>        <mapper resource="tk/mybatis/simple/mapper/CountryMapper.xml"/>    </meppers></configuration>

这是需要的一些配置文件

数据库的属性的数据的编码选择