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>
    <!--<classPathEntry location="C:\Users\mingweilin\.m2\repository\mysql\mysql-connector-java\8.0.15\mysql-connector-java-8.0.15.jar" />-->
    <classPathEntry location="C:\Users\linmi\.m2\repository\mysql\mysql-connector-java\8.0.15\mysql-connector-java-8.0.15.jar" />

    <context id="bootdemo" targetRuntime="MyBatis3Simple" defaultModelType="flat">
        <property name="autoDelimitKeywords" value="true"/>
        <property name="beginningDelimiter" value="`"/>
        <property name="endingDelimiter" value="`"/>
        <commentGenerator>
            <property name="suppressAllComments" value="true"/>
        </commentGenerator>
        <jdbcConnection driverClass="com.mysql.cj.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/bootdemo"
                        userId="root"
                        password="mysql123">
            <property name="serverTimezone" value="GMT"/>
            <!--解决mysql驱动8.0新版本生成其他数据库的表的问题-->
            <property name="nullCatalogMeansCurrent" value="true"/>
        </jdbcConnection>

        <javaModelGenerator targetPackage="com.springboot.demo.entity" targetProject="src\main\java">
            <property name="trimStrings" value="true" />
        </javaModelGenerator>

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

        <javaClientGenerator type="XMLMAPPER" targetPackage="com.springboot.demo.mapper"  targetProject="src\main\java">
        </javaClientGenerator>

        <table  tableName="link"   >
            <property name="useActualColumnNames" value="true"/>
            <generatedKey column="id" sqlStatement="MySQL" identity="true" />
        </table>
        <table  tableName="notice"   >
            <property name="useActualColumnNames" value="true"/>
            <generatedKey column="id" sqlStatement="MySQL" identity="true" />
        </table>

    </context>
</generatorConfiguration>