十九、Spring boot中整合mybatis-generator自动生成代码

（一）添加插件

<plugin>
        <groupId>org.mybatis.generator</groupId>
        <artifactId>mybatis-generator-maven-plugin</artifactId>
        <version>1.3.7</version>
        <configuration>
          <!--配置自动生成工具的配置文件所在的位置-->
          <configurationFile>${basedir}/src/main/resources/mybatis/mybatis-generator-config.xml</configurationFile>
        </configuration>
        <dependencies>
          <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.47</version>
            <scope>runtime</scope>
          </dependency>
        </dependencies>
      </plugin>

（二）配置自动生成工具

<?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>
    <context id="tomcatTables">
        <commentGenerator>
            <property name="suppressDate" value="true"/>
            <!-- 是否去除自动生成的注释 true：是 ： false:否 -->
            <property name="suppressAllComments" value="true"/>
        </commentGenerator>
        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/tomcat"
                        userId="root"
                        password="root"/>
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false"/>
        </javaTypeResolver>


        <!--Java模型对象生成器-->
        <javaModelGenerator targetPackage="org.pc.entity"
                            targetProject="${user.dir}/src/main/java"/>
        <!--Sql Mapper XML生成器-->
        <sqlMapGenerator targetPackage="/mybatis/mappers"
                         targetProject="${user.dir}/src/main/resources"/>
        <!--Sql Map对应的Java接口    -->
        <javaClientGenerator type="XMLMAPPER" targetPackage="org.pc.dao"
                             targetProject="${user.dir}/src/main/java">
        </javaClientGenerator>


        <!--配置表及其映射 domainObjectName是实体类名-->
        <table tableName="user" domainObjectName="User"
               enableCountByExample="false"
               enableUpdateByExample="false"
               enableDeleteByExample="false"
               enableSelectByExample="false"
               selectByExampleQueryId="false">
            <!-- sqlStatement：什么类型的数据库；identity：是不是组件-->
            <generatedKey column="id" sqlStatement="mysql" identity="true"/>
            <columnOverride column="name" property="name"/>
            <columnOverride column="age" property="age"/>
        </table>
    </context>
</generatorConfiguration>

（三）启动自动生成工具插件