MyBatis_Generator的使用（实践）

使用MyBatis的Generator主要配置三个地方

1、pom.xml

2、generatorConfig.xml

3、maven命令生成文件

一、pom.xml

1、引入依赖

<mysql.version>5.1.37</mysql.version>

<mybatis.version>3.3.1</mybatis.version>

<mybatis.spring.version>1.2.3</mybatis.spring.version>

<spring.version>4.2.5.RELEASE</spring.version>

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<!-- 数据库 -->       <dependency>           <groupId>mysql</groupId>           <artifactId>mysql-connector-java</artifactId>           <version>${mysql.version}</version>           <scope>runtime</scope>       </dependency>       <dependency>           <groupId>com.alibaba</groupId>           <artifactId>druid</artifactId>           <version>1.0.18</version>       </dependency>       <dependency>           <groupId>org.mybatis</groupId>           <artifactId>mybatis</artifactId>           <version>${mybatis.version}</version>       </dependency>       <dependency>           <groupId>org.mybatis</groupId>           <artifactId>mybatis-spring</artifactId>           <version>${mybatis.spring.version}</version>       </dependency>       <dependency>           <groupId>org.springframework</groupId>           <artifactId>spring-jdbc</artifactId>           <version>${spring.version}</version>       </dependency>       <dependency>           <groupId>org.mybatis.generator</groupId>           <artifactId>mybatis-generator-core</artifactId>           <version>1.3.2</version>       </dependency>   </dependencies>

2、引入mybatis插件

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<build>        <plugins>            <plugin>                <groupId>org.mybatis.generator</groupId>                <artifactId>mybatis-generator-maven-plugin</artifactId>                <version>1.3.2</version>                <configuration>                    <verbose>true</verbose>                    <overwrite>true</overwrite>                </configuration>            </plugin>        </plugins>      </build>

二、generatorConfig.xml

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<?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="jdbc.properties" />-->     <classPathEntry             location="C:UsersAdministrator.m2 epositorymysqlmysql-connector-java5.1.37mysql-connector-java-5.1.37.jar" />       <context id="Mysql2Tables" targetRuntime="MyBatis3">         <!-- 生成的pojo，将implements Serializable-->         <plugin type="org.mybatis.generator.plugins.SerializablePlugin"></plugin>         <commentGenerator>             <!-- 是否去除自动生成的注释 true：是 ： false:默认  -->             <property name="suppressAllComments" value="false" />             <!--suppressDate:**阻止**生成的注释包含时间戳，默认为false-->             <property name="suppressDate" value="true"/>         </commentGenerator>           <!-- 数据库链接URL、用户名、密码 -->         <jdbcConnection driverClass="com.mysql.jdbc.Driver"                         connectionURL="jdbc:mysql://IP:3306/test?useUnicode=true&amp;amp;characterEncoding=utf-8&amp;amp;autoReconnect=true&amp;amp;failOverReadOnly=false&amp;amp;zeroDateTimeBehavior=convertToNull"                         userId="root"                         password="">         </jdbcConnection>           <!--              默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer                true，把JDBC DECIMAL 和 NUMERIC 类型解析为java.math.BigDecimal              -->         <javaTypeResolver>             <property name="forceBigDecimals" value="false" />         </javaTypeResolver>           <!--             生成model模型，对应的包路径，以及文件存放路径(targetProject)，targetProject可以指定具体的路径,如./src/main/java，            也可以使用“MAVEN”来自动生成，这样生成的代码会在target/generatord-source目录下            -->          <!--生成数据库对应的实体类，可以使用相对路径：./src/main/java-->         <javaModelGenerator targetPackage="com.gossip.dub.domain.entity" targetProject="c:mybatis">             <property name="enableSubPackages" value="true"/>             <!-- 从数据库返回的值被清理前后的空格  -->             <property name="trimStrings" value="true" />         </javaModelGenerator>           <!--对应的mapper.xml文件，需要手动创建mybatis、mapper文件夹  -->         <sqlMapGenerator targetPackage="mappers" targetProject="c:mybatismapper">             <property name="enableSubPackages" value="true"/>         </sqlMapGenerator>           <!-- 对应的Mapper接口类文件，需要手动创建mybatis、mapper文件夹 -->         <javaClientGenerator type="XMLMAPPER" targetPackage="com.gossip.dub.dao" targetProject="c:mybatisinterfaces">             <property name="enableSubPackages" value="true"/>         </javaClientGenerator>             <!-- 列出要生成代码的所有表，这里配置的是不生成Example文件 -->         <table tableName="seckill" domainObjectName="SecKill"                enableCountByExample="true" enableUpdateByExample="true" enableDeleteByExample="true"                enableSelectByExample="true" selectByExampleQueryId="true" >             <!--是否使用真实的列名，该属性可以不定义-->             <property name="useActualColumnNames" value="false"/>         </table>     </context> </generatorConfiguration>

三、使用maven命令生成model、接口、xml

mybatis-generator:generate

来自为知笔记(Wiz)