Idea使用mybatis-generator反向生成代码

在项目子模块（dao层）的pom.xml文件添加插件

<build>
    <plugins>
        <plugin>
            <!--Mybatis-generator插件,用于自动生成Mapper和POJO-->
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-maven-plugin</artifactId>
            <version>1.3.2</version>
            <configuration>
                <!--配置文件的位置-->
                <configurationFile>src/main/resources/mybatis-generator-config.xml</configurationFile>
                <verbose>true</verbose>
                <overwrite>true</overwrite>
            </configuration>
            <executions>
                <execution>
                    <id>Generate MyBatis Artifacts</id>
                    <goals>
                        <goal>generate</goal>
                    </goals>
                </execution>
            </executions>
            <dependencies>
                <dependency>
                    <groupId>org.mybatis.generator</groupId>
                    <artifactId>mybatis-generator-core</artifactId>
                    <version>1.3.2</version>
                </dependency>
            </dependencies>
        </plugin>
    </plugins>
</build>

在dao层的resource配置反向生成文件

<?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>
    <!--mysql 选择JDBC的jar路径-->
    <classPathEntry location="E:\java\Maven\mysql\mysql-connector-java\5.1.34\mysql-connector-java-5.1.34.jar"/>
    <context id="testTables" targetRuntime="MyBatis3">
        <commentGenerator>
            <!-- 除去注释 -->
            <property name="suppressAllComments" value="true"/>
        </commentGenerator>
        <!--数据库连接的信息：驱动类、连接地址（数据库地址+库名）、用户名、密码 -->
        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                        connectionURL="jdbc:mysql://192.168.1.231:3306/xxx" userId="root"
                        password="1234567">
        </jdbcConnection>
        <!-- 默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer，为 true时把JDBC DECIMAL 和
           NUMERIC 类型解析为java.math.BigDecimal -->
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false"/>
        </javaTypeResolver>

        <!-- targetPackage 生成包 存反向生成的文件  targetProject 反向生成文件存的路径-->
        <javaModelGenerator targetPackage="com.zmin.bean"
         targetProject="D:\git_home\zmin\zmin-bean\src\main\java">
            <!-- enableSubPackages:是否让schema作为包的后缀 -->
            <property name="enableSubPackages" value="false"/>
            <!-- 从数据库返回的值被清理前后的空格 -->
            <property name="trimStrings" value="true"/>
        </javaModelGenerator>
        <!-- targetPackage 生成包存放文件 -->
        <sqlMapGenerator targetPackage="com.zmin.mapper"
targetProject="D:\git_home\zmin\zmin-dao\src\main\resources">
   <!-- enableSubPackages:是否让schema作为包的后缀 -->
            <property name="enableSubPackages" value="false"/>
        </sqlMapGenerator>
        <!-- targetPackage：mapper接口生成的位置 -->
        <javaClientGenerator type="XMLMAPPER"
                             targetPackage="com.zmin.mapper"
                             targetProject="D:\git_home\zmin\zmin-dao\src\main\java">
            <!-- enableSubPackages:是否让schema作为包的后缀 -->
            <property name="enableSubPackages" value="false"/>
        </javaClientGenerator>
        <!-- 指定数据库表 -->
        <table tableName="t_admin_role"></table>
        <table tableName="t_admin"></table>
    </context>
</generatorConfiguration>

刷新 运行mybatis-generator