【项目搭建】myeclipse：第三步：SpringBoot + MyBatis + MySql整合

【配置pom.xml文件】

<?xml version="1.0" encoding="UTF-8"?>
<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>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.1.3.RELEASE</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.cn.demo</groupId>
	<artifactId>springboot-demo</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>springboot-demo</name>
	<description>Demo project for Spring Boot</description>

	<properties>
		<!-- jdk -->
		<java.version>1.8</java.version>
		<!-- 项目编码-->
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
	</properties>

	<dependencies>
		<!-- springboot -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter</artifactId>
		</dependency>
		<!-- mybatis -->
		<dependency>
			<groupId>org.mybatis.spring.boot</groupId>
			<artifactId>mybatis-spring-boot-starter</artifactId>
			<version>2.0.0</version>
		</dependency>
		<!-- 数据库 -->
		<dependency>
		  <groupId>mysql</groupId>
		  <artifactId>mysql-connector-java</artifactId>
		  <version>5.1.6</version>
		</dependency>
		<!-- 连接池 -->
		<dependency>
		    <groupId>com.alibaba</groupId>
		    <artifactId>druid</artifactId>
		    <version>1.1.0</version>
		</dependency>
		<!-- mybatis插件 -->
		 <dependency>
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-core</artifactId>
            <version>1.3.7</version>
        </dependency>
        <!-- 如不 引用@Param注解无法使用 -->
        <dependency>
		  <groupId>org.apache.ibatis</groupId>
		  <artifactId>ibatis-core</artifactId>
		  <version>3.0</version>
		</dependency>
		<dependency>
            <groupI