1、导入mybaties插件

<build>
        <plugins>
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.4.2</version>
                <dependencies>
                    <dependency>
                        <groupId>mysql</groupId>
                        <artifactId>mysql-connector-java</artifactId>
                        <version>5.1.49</version>
                    </dependency>
                </dependencies>
            </plugin>
        </plugins>
    </build>

2、写generator.xml文件

<?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>

    <!--    所有信息都在context里，id是唯一标识，targetRuntime在Mybatis3的环境-->
    <context id="beaconCloud" targetRuntime="MyBatis3">
        <!--        去除注释-->
        <commentGenerator>
            <property name="suppressAllComments" value="true" />
        </commentGenerator>

        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                        connectionURL="jdbc:mysql://127.0.0.1:3306/mysql?characterEncoding=utf-8"
                        userId="root"
                        password="12345678">
        </jdbcConnection>



        <javaTypeResolver >
            <!--            是否将decimal类型转换为Java中的BigDecimal，默认false-->
            <property name="forceBigDecimals" value="false" />
        </javaTypeResolver>
        <!--        将表对应的实体类生成，指定好位置-->
        <javaModelGenerator targetPackage="com.webMaster.entity" targetProject="src/main/java">
            <property name="enableSubPackages" value="true" />
            <!--            字符串get时，去掉两边空格-->
            <property name="trimStrings" value="true" />
        </javaModelGenerator>
        <!--        生成xml文件-->
        <sqlMapGenerator targetPackage="mapper"  targetProject="src/main/resources">
            <property name="enableSubPackages" value="true" />
        </sqlMapGenerator>

        <!--        生成Mapper接口-->
        <javaClientGenerator type="XMLMAPPER" targetPackage="com.webMaster.mapper"  targetProject="src/main/java">
            <property name="enableSubPackages" value="true" />
        </javaClientGenerator>

        <!--        生成那些表对应的信息-->
        <!--        <table tableName="sms_user" domainObjectName="SmsUser" />-->
        <!--        <table tableName="sms_role" domainObjectName="SmsRole" />-->
        <!--        <table tableName="sms_menu" domainObjectName="SmsMenu" />-->
        <table tableName="client_business" domainObjectName="ClientBusiness" />

    </context>
</generatorConfiguration>

三、运行插件