这个插件（不知道算不算插件）大家应该都知道他的作用，就是和逆向工程差不多的，可以根据表自动生成实体和接口（对应的）。
使用的是maven构建，首先需要在pom.xml文件添加mybatis-generator依赖包以及插件，配置如下：
dependencies中添加：
<dependency><groupId>org.mybatis.generator</groupId><artifactId>mybatis-generator-core</artifactId><version>1.3.2</version></dependency>
在build的plugins中添加：
<plugin><groupId>org.mybatis.generator</groupId><artifactId>mybatis-generator-maven-plugin</artifactId><version>1.3.2</version><configuration><!-- mybatis用于生成代码的配置文件 --><configurationFile>src/main/resources/generatorConfig.xml</configurationFile><verbose>true</verbose><overwrite>true</overwrite></configuration></plugin>
generatorConfig.xml文件：
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE generatorConfigurationPUBLIC "-////DTD MyBatis Generator Configuration 1.0//EN""/dtd/mybatis-generator-config_1_0.dtd"><generatorConfiguration><!-- windows下路径, D:\downloads\xxx.jar--><classPathEntry location="D:\moil\mysql-connector-java-5.1.6.jar"/><context id="DB2Tables" targetRuntime="MyBatis3"><!-- 不再追加xml内容--><plugin type="org.mybatis.generator.plugins.UnmergeableXmlMappersPlugin" /><commentGenerator><property name="suppressAllComments" value="true"/></commentGenerator><jdbcConnection driverClass="com.mysql.jdbc.Driver"connectionURL="jdbc:mysql://localhost:3306/manager?serverTimezone=UTC&useUnicode=true&characterEncoding=UTF-8"userId="root"password="root"></jdbcConnection><javaTypeResolver ><property name="forceBigDecimals" value="false" /></javaTypeResolver><javaModelGenerator targetPackage="com.imock.moil.pojo" targetProject="src/main/java"><property name="enableSubPackages" value="true" /><!-- <property name="trimStrings" value="true" />--></javaModelGenerator><sqlMapGenerator targetPackage="mapper" targetProject="src/main/resources"><property name="enableSubPackages" value="true" /></sqlMapGenerator><javaClientGenerator type="XMLMAPPER" targetPackage="com.imock.moil.dao" targetProject="src/main/java"><property name="enableSubPackages" value="true" /></javaClientGenerator><table tableName="mall_order" domainObjectName="Order" enableCountByExample="false" enableDeleteByExample="false" enableSelectByExample="false" enableUpdateByExample="false"/></context></generatorConfiguration>
这个文件里有几个地方要注意下：
1.
<classPathEntry location="D:\moil\mysql-connector-java-5.1.6.jar"/>
这个是jar包在window下的路径；别写错了，要不然会报错
<plugin type="org.mybatis.generator.plugins.UnmergeableXmlMappersPlugin" />
这个是xml里有多余的重复的sql语句，加这句就没了
<javaModelGenerator targetPackage="com.imock.moil.pojo" targetProject="src/main/java"><property name="enableSubPackages" value="true" /></javaModelGenerator>
这是实体类的路径
<sqlMapGenerator targetPackage="mapper" targetProject="src/main/resources"><property name="enableSubPackages" value="true" /></sqlMapGenerator>
mapper文件的路径
<javaClientGenerator type="XMLMAPPER" targetPackage="com.imock.moil.dao" targetProject="src/main/java"><property name="enableSubPackages" value="true" /></javaClientGenerator>
dao文件路径
<table tableName="mall_order" domainObjectName="Order" enableCountByExample="false" enableDeleteByExample="false" enableSelectByExample="false" enableUpdateByExample="false"/>
这个就是生成的表，后面这些是一些设置
