mybatis逆向工程用法

官网所在的地址：http://mybatis.org/generator/quickstart.html#MyBatis3DynamicSql

第一件事，导入相关的包(注意版本，下面仅供参考)

<!--        代码生成器-->
        <!-- https://mvnrepository.com/artifact/org.mybatis.generator/mybatis-generator-core -->
        <dependency>
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-core</artifactId>
            <version>1.4.0</version>
        </dependency>
<!--      mysql驱动包  -->
        <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.30</version>
        </dependency>

1.在项目中创建xml文件

1.1直接在官网上复制粘贴

1.2书写配置

本人写的配置文件

<!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="DB2Tables" targetRuntime="MyBatis3">
        <!--取消生成注释-->
        <commentGenerator>
            <property name="suppressAllComments    " value="true"/>
        </commentGenerator>
<!--        数据库连接配置-->
        <jdbcConnection driverClass="com.mysql.cj.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/helper?serverTimezone=Asia/Shanghai&amp;useUnicode=true&amp;characterEncoding=utf-8"
                        userId="用户名"
                        password="密码">
            <property name="nullCatalogMeansCurrent" value="true"/>
        </jdbcConnection>

<!--      指定javaBean生成的位置  -->
        <javaModelGenerator targetPackage="com.wang.helper.bean" targetProject="src/main/java">
                <property name="enableSubPackages" value="true" />
                <property name="trimStrings" value="true" />
        </javaModelGenerator>

<!--        指定sql映射文件生成的位置-->
        <sqlMapGenerator targetPackage="mapper" targetProject="src/main/resources">
                <property name="enableSubPackages" value="true" />
        </sqlMapGenerator>

<!--        指定dao接口生成的位置，mapper接口-->
        <javaClientGenerator targetPackage="com.wang.helper.dao" targetProject="src/main/java"
                             type="XMLMAPPER">
                <property name="enableSubPackages" value="true"/>
        </javaClientGenerator>
        
<!--        指定每个表的生成策略  前面是表名 生成类的名字-->
        <table tableName="user" domainObjectName="User"
               enableCountByExample="false"
               enableUpdateByExample="false"
               enableDeleteByExample="false"
               enableSelectByExample="false"
               selectByExampleQueryId="false">
        </table>
        <table tableName="entrust" domainObjectName="Entrust"
               enableCountByExample="false"
               enableUpdateByExample="false"
               enableDeleteByExample="false"
               enableSelectByExample="false"
               selectByExampleQueryId="false">

        </table>
    </context>
</generatorConfiguration>