1.mybatis-generator是什么:
mybatis-generator是一款在使用mybatis框架时,自动生成model,dao和mapper的工具
2.怎么使用
本人使用的是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:
- 1.dependencies中添加:
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.2</version>
</dependency>
- 2.pom.xml的build的plugins中添加:
<plugin>
<!--Mybatis-generator插件,用于自动生成Mapper和POJO-->
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.2</version>
<configuration>
<!--配置文件的位置-->
<configurationFile>src/main/resources/builder/generatorConfig.xml</configurationFile>
<verbose>true</verbose>
<overwrite>true</overwrite>
</configuration>
<executions>
<execution>
<id>Generate MyBatis Artifacts</id>
<goals>
<goal>generate</goal>
</goals>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.2</version>
</dependency>
</dependencies>
</plugin>
3.新建俩个文件
1.generator.properties
jdbc.driverLocation=D:/soft/mysql-connector-java-5.1.48/mysql-connector-java-5.1.48.jar
jdbc.connectionURL=jdbc:mysql://localhost:3306/test?characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull
jdbc.userId=root
jdbc.password=123123
2.generatorConfig.xml
- generatorConfig.xml文件的简单介绍
<?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="builder/generator.properties"/>
<classPathEntry location="${jdbc.driverLocation}"/>//下面的文件有
<context id="pm" targetRuntime="MyBatis3Simple" defaultModelType="flat">
<property name="javaFileEncoding" value="UTF-8"/>
<commentGenerator>
<property name="suppressDate" value="true"/>
</commentGenerator>
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="${jdbc.connectionURL}"
userId="${jdbc.userId}" password="${jdbc.password}"/>
<!-- 实体类生成的位置 -->
<javaModelGenerator targetPackage="com.example.learn.entity" targetProject="src/main/java">
</javaModelGenerator>
<sqlMapGenerator targetPackage="mapper"
targetProject="src/main/resources"/>
<javaClientGenerator targetPackage="com.example.learn.mapper"
targetProject="src/main/java" type="XMLMAPPER">
<property name="enableSubPackages" value="true"/>
</javaClientGenerator>
<table tableName="account" domainObjectName="account">
</table>
<table tableName="debt_statistics" domainObjectName="debtStatistics">
</table>
<table tableName="expenditure" domainObjectName="expenditure">
</table>
<table tableName="income" domainObjectName="income">
</table>
<table tableName="statistical" domainObjectName="statistical">
</table>
</context>
</generatorConfiguration>
4.使用maven插件双击即可
5.结果