spring mvc 自动生成mapper和pojo

使用到Generator

配置一个工具类，继承pluginAdapter 作用是避免生成重复代码的插件，自动生成工具很多时候mapper.xml会重复生成代码，导致启动错误

public class OverIsMergeablePlugin extends PluginAdapter{
    @Override
    public boolean validate(List<String> warnings){
        return true;
    }

    @Override
    public boolean sqlMapGenerated(GeneratedXmlFile sqlMap, IntrospectedTable introspectedTable){
        try{
            Field field = sqlMap.getClass().getDeclaredField("isMergeable");
            field.setAccessible(true);
            field.setBoolean(sqlMap,false);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return true;
    }
}

配置xml 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="/Users/wuwenfei/Desktop/Git/fsyunfan/IdeaProjects/Spring/WebContent/WEB-INF/lib/mysql-connector-java-8.0.29.jar"/>-->
    <context id="DB2Tables" targetRuntime="MyBatis3">
        <!--避免生成重复代码的插件-->
        <plugin type="com.xxx.util.OverIsMergeablePlugin" />

        <!--是否在代码中显示注释-->
        <commentGenerator>
            <property name="suppressDate" value="true" />
            <property name="suppressAllComments" value="true" />
        </commentGenerator>

        <!--数据库链接地址账号密码-->
        <jdbcConnection driverClass="com.mysql.cj.jdbc.Driver" connectionURL="jdbc:mysql://127.0.0.1/xxx" userId="root" password="123456">
            <!-- 仅查询当前库的表，不去查询其他库，不同的数据库有相同的表，Mybatis Generator 串库了 -->
            <property name="nullCatalogMeansCurrent" value="true" />
            <property name="remarksReporting" value="true"/>
        </jdbcConnection>
        <!--不知道做什么用的。。。反正贴上来了~-->
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false"/>
        </javaTypeResolver>
        <!--生成pojo类存放位置-->
        <javaModelGenerator targetPackage="com.xxx.pojo" targetProject="/绝对路径/IdeaProjects/Spring/src">
            <property name="enableSubPackages" value="true"/>
            <property name="trimStrings" value="true"/>
        </javaModelGenerator>
        <!--生成xml映射文件存放位置-->
        <sqlMapGenerator targetPackage="com.xxx.mapper" targetProject="/绝对路径/IdeaProjects/Spring/src">
            <property name="enableSubPackages" value="true"/>
        </sqlMapGenerator>
        <!--生成mapper类存放位置-->
        <javaClientGenerator type="XMLMAPPER" targetPackage="com.xxx.mapper" targetProject="/绝对路径/IdeaProjects/Spring/src">
            <property name="enableSubPackages" value="true"/>
        </javaClientGenerator>

        <!--生成对应表及类名-->
        <table tableName="user" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="true" selectByExampleQueryId="false">
            <property name="my.isgen.usekeys" value="true"/>
            <property name="useActualColumnNames" value="true"/>
            <generatedKey column="id" sqlStatement="JDBC"/>
        </table>
        <table tableName="role" domainObjectName="Role" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="true" selectByExampleQueryId="false">
            <property name="my.isgen.usekeys" value="true"/>
            <property name="useActualColumnNames" value="true"/>
            <generatedKey column="id" sqlStatement="JDBC"/>
        </table>
        <table tableName="permission" domainObjectName="Permission" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="true" selectByExampleQueryId="false">
            <property name="my.isgen.usekeys" value="true"/>
            <property name="useActualColumnNames" value="true"/>
            <generatedKey column="id" sqlStatement="JDBC"/>
        </table>
        <table tableName="user_role" domainObjectName="UserRole" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="true" selectByExampleQueryId="false">
            <property name="my.isgen.usekeys" value="true"/>
            <property name="useActualColumnNames" value="true"/>
            <generatedKey column="id" sqlStatement="JDBC"/>
        </table>
        <table tableName="role_permission" domainObjectName="RolePermission" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="true" selectByExampleQueryId="false">
            <property name="my.isgen.usekeys" value="true"/>
            <property name="useActualColumnNames" value="true"/>
            <generatedKey column="id" sqlStatement="JDBC"/>
        </table>

    </context>
</generatorConfiguration>