mybatis的generator 代码生成器(自动生成DAO,PO,XML)

1. 引入 插件

     <!--      mybatis代码自动生成插件      -->
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.5</version>
                <configuration>
                    <!--配置文件的位置 -->
                    <configurationFile>src/main/resources/generatorMapper.xml</configurationFile>
                    <verbose>true</verbose>
                    <overwrite>true</overwrite>
                </configuration>
            </plugin>

刷新下pop

2.配置下springboot的 Application.yml

# mybatis 的配置
mybatis:
  type-aliases-package: vip.chen.goods
  configuration:
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
  mapper-locations: classpath:/mapper/*.xml
# spring 的配置
spring:
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://localhost:3306/goods?characterEncoding=utf-8&serverTimezone=GMT%2B8
    username: root
    password: 123456

3.generatorMapper.xml

<?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>
    <!-- 指定连接数据库的JDBC驱动包所在位置，指定到你本机的完整路径 -->
    <classPathEntry location="D:\maven_repository\mysql\mysql-connector-java\8.0.22\mysql-connector-java-8.0.22.jar"/>
    <context id="default" targetRuntime="MyBatis3">
        <!-- 生成的Java文件的编码 -->
        <property name="javaFileEncoding" value="UTF-8"/>
        <!-- 格式化java代码 -->
        <property name="javaFormatter" value="org.mybatis.generator.api.dom.DefaultJavaFormatter"/>
        <!-- JavaBean 实现 序列化 接口 -->
        <plugin type="org.mybatis.generator.plugins.SerializablePlugin"/>
        <!-- genenat entity时,生成toString -->
        <plugin type="org.mybatis.generator.plugins.ToStringPlugin"/>

        <!-- 是否去除自动生成的注释 true：是 ： false:否 -->
        <commentGenerator>
            <property name="suppressAllComments" value="true"/>
            <!--生成的注释包含时间戳-->
            <property name="suppressDate" value="true"/>
        </commentGenerator>
        <!--数据库连接的信息：驱动类、连接地址、用户名、密码 -->
        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/goods?characterEncoding=utf-8&amp;serverTimezone=GMT%2B8"
                        userId="root"
                        password="123456">
            <property name="useInformationSchema" value="false"/>
        </jdbcConnection>
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false"/>
        </javaTypeResolver>
        <!--生成Entity类存放位置-->
        <javaModelGenerator targetPackage="vip.chen.po" targetProject="src/main/java">
            <property name="enableSubPackages" value="true"/>
            <property name="trimStrings" value="true"/>
        </javaModelGenerator>
        <!--生成映射文件存放位置-->
        <sqlMapGenerator targetPackage="mapper" targetProject="src/main/resources">
            <property name="enableSubPackages" value="true"/>
        </sqlMapGenerator>
        <!--生成Dao类存放位置(Mapper)-->
        <javaClientGenerator type="XMLMAPPER" targetPackage="vip.chen.dao" targetProject="src/main/java">
            <property name="enableSubPackages" value="true"/>
        </javaClientGenerator>
        <!--生成对应表及类名-->
        <!--    schema 数据库名    tableName 表名 domainObjectName 实体类名  方法一般不生成，设为false-->
        <table tableName="employee" domainObjectName="Employee" enableCountByExample="false" enableUpdateByExample="false"
               enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false">
        </table>
        <table tableName="employee_salary" domainObjectName="EmployeeSalary" enableCountByExample="false" enableUpdateByExample="false"
               enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false">
        </table>
        <table tableName="employee_salary_adjust" domainObjectName="EmployeeSalaryAdjust" enableCountByExample="false" enableUpdateByExample="false"
               enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false">
        </table>

    </context>
</generatorConfiguration>

4.执行generator插件