1、STS工具菜單項Help > Eclipse Marketplace...

2、輸入“mybatis”關鍵字搜索

3、選擇MyBatis Generator 1.3.7進行安裝

4、安裝成功後重啟ide

5、為項目創建mybatis代碼生成配置文件

配置如下：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN" "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd"
 
>
<generatorConfiguration>
    <!-- 數據庫驅動-->    
    <classPathEntry  location="E:\Maven\hs-MavenRepsitory\repository\mysql\mysql-connector-java\5.1.46\mysql-connector-java-5.1.46.jar"/>    
  <context id="MySQL" targetRuntime="MyBatis3">
        <commentGenerator>
 
    
            <property name="suppressDate" value="true"/>    
            <!-- 是否去除自動生成的註釋 true：是 ： false:否 -->    
            <property name="suppressAllComments" value="true"/>    
        </commentGenerator>   
      <!--數據庫鏈接URL，用戶名、密碼 -->
    <jdbcConnection 
 
driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/test" userId="root" password="root"/>
    <!--是否啟用java.math.BigDecimal-->
        <javaTypeResolver>    
            <property name="forceBigDecimals" value="false"/>    
        </javaTypeResolver>    
    <!-- 生成模型的包名和位置-->    
    <javaModelGenerator targetPackage="com.lock.spring.boot.blog.model" targetProject="jpa-in-action/src/main/java">
            <property name="enableSubPackages" value="true" />
            <property name="trimStrings" value="true" />
    </javaModelGenerator>
    <!-- 生成DAO的包名和位置-->    
    <sqlMapGenerator targetPackage="com.lock.spring.boot.blog.mapper" targetProject="jpa-in-action/src/main/java">
            <property name="enableSubPackages" value="true" />
    </sqlMapGenerator>
    <!-- 生成映射文件的包名和位置-->    
    <javaClientGenerator targetPackage="com.lock.spring.boot.blog.mapper" targetProject="jpa-in-action/src/main/java" type="XMLMAPPER">
        <property name="enableSubPackages" value="true" />
    </javaClientGenerator>
    <!-- 要生成的表 tableName是數據庫中的表名或視圖名 domainObjectName是實體類名-->    
    <table tableName="user" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false">
        <property name="useActualColumnNames" value="true"/>
      <!-- columnOverride column="???" property="???" /-->
    </table>
  </context>
</generatorConfiguration>

6、右擊配置文件, 選擇Run As > Run Mybatis Generator

參考地址：http://www.mybatis.org/generator/running/runningWithEclipse.html

STS中配置MyBatis代碼生成器