IDEA + SpringBoot + Mybatis Generator + MySQL8.0.17 Mapper automatically generated entity classes and

1, the project to build SpringBoot

2, modify pom.xml file

Add dependence:

<dependency>
  <groupId>mysql</groupId>
  <artifactId>mysql-connector-java</artifactId>
  <version>8.0.17</version>
</dependency>
<!--自动生成mybatis -->
<dependency>
  <groupId>org.mybatis.generator</groupId>
  <artifactId>mybatis-generator-core</artifactId>
  <version>1.3.5</version>
</dependency>
<dependency>
  <groupId>tk.mybatis</groupId>
  <artifactId>mapper</artifactId>
  <version>4.0.0</version>
</dependency>

Add plug-ins:

<plugin>
  <groupId>org.mybatis.generator</groupId>
  <artifactId>mybatis-generator-maven-plugin</artifactId>
  <version>1.3.5</version>
  <configuration>
    <verbose>true</verbose>
    <overwrite>true</overwrite>
    <configurationFile>src/main/resources/generator/generatorConfig.xml</configurationFile>
  </configuration>
  <dependencies>
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>8.0.17</version>
    </dependency>
    <dependency>
      <groupId>tk.mybatis</groupId>
      <artifactId>mapper</artifactId>
      <version>4.0.0</version>
    </dependency>
  </dependencies>
</plugin>

3、创建generatorConfig.xml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="Mysql" targetRuntime="MyBatis3Simple" defaultModelType="flat">
    <property name="beginningDelimiter" value="`"/>
    <property name="endingDelimiter" value="`"/>

    <plugin type="tk.mybatis.mapper.generator.MapperPlugin">
      <property name="mappers" value="tk.mybatis.mapper.common.Mapper"/>
      <property name="caseSensitive" value="true"/>
    </plugin>

    <jdbcConnection driverClass="com.mysql.cj.jdbc.Driver"
                    connectionURL="jdbc:mysql://localhost:3306/kosi?characterEncoding=utf8&amp;useSSL=false&amp;serverTimezone=GMT%2B8"
                    userId="root"
                    password="root">
    </jdbcConnection>

    <javaModelGenerator targetPackage="com.example.klaus.model"
                        targetProject="src/main/java"/>

    <sqlMapGenerator targetPackage="mapper"
                     targetProject="src/main/resources"/>

    <javaClientGenerator targetPackage="com.example.klaus.mapper"
                         targetProject="src/main/java"
                         type="XMLMAPPER"/>

    <table tableName="user" domainObjectName="User">
      <generatedKey column="id" sqlStatement="JDBC"/>
    </table>

  </context>
</generatorConfiguration>

4、启动插件生成代码