idea创建mybatis逆向工程Generator （使用Maven Plugin生成）

1. pom.xml 导入依赖

<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.1.1</version>
</dependency>

<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.7</version>
</dependency>

<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>

2. 创建Generator配置文件 resources/mybatis-config/generatorConfig.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>
<properties resource="mybatis-config/generator.properties" />
<context id="MySQLTables" targetRuntime="MyBatis3">
<jdbcConnection driverClass="${driver}"
connectionURL="${url}"
userId="${username}"
password="${password}">
</jdbcConnection>
<javaTypeResolver >
<property name="forceBigDecimals" value="false" />
</javaTypeResolver>
<javaModelGenerator targetPackage="${poPath}" targetProject="${targetPath}">
<property name="enableSubPackages" value="true" />
<property name="trimStrings" value="true" />
</javaModelGenerator>
<sqlMapGenerator targetPackage="${mapperPath}"  targetProject="${targetPath}">
<property name="enableSubPackages" value="true" />
</sqlMapGenerator>
<javaClientGenerator type="XMLMAPPER" targetPackage="${mapperPath}"  targetProject="${targetPath}">
<property name="enableSubPackages" value="true" />
</javaClientGenerator>
<table  tableName="userinfo" domainObjectName="UserInfo" > </table>
</context>
</generatorConfiguration>

3. 创建resources\mybatis-config\generator.properties

#项目绝对路径
targetPath=F:\\workspace\\idea\\mybatis\\springboot\\src\\main\\java
#po包
poPath=com.libo.springboot.po
#mapper包
mapperPath=com.libo.springboot.mapper
#数据库配置
username=root
password=123456
#低版本的mysql-connector驱动地址为 com.mysql.cj.jdbc.Driver
driver=com.mysql.cj.jdbc.Driver
#低版本的mysql-connector地址：url=jdbc:mysql://localhost:3306/DBName?characterEncoding=UTF-8
url=jdbc:mysql://localhost:3306/DBName?characterEncoding=UTF-8&useSSL=false&serverTimezone=Asia/Shanghai

4. pom.xml的build标签中添加plugin，添加之后才能使用maven的plugin执行逆向工程。

<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.7</version>
<configuration>
<!-- generator 工具配置文件的位置 -->
<configurationFile>src\main\resources\mybatis-config\generatorConfig.xml</configurationFile>
<!--如果为true，则MBG(MyBatis Generator)将详细消息写入构建日志。-->
<verbose>true</verbose>
<!-- 是否覆盖，true表示会替换生成的JAVA文件，false则不覆盖 -->
<overwrite>true</overwrite>
</configuration>
<!-- plugin中需要单独写MySQL-connector依赖 否则会报jdbc Driver错误 -->
<dependencies>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.18</version>
</dependency>
</dependencies>
</plugin>
</plugins>

5. 执行generate 成功生成po 和mapper

注：po和mapper的包需要提前创建好

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