mybatis-generator插件的使用及相关配置
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mybatis-generator主要用于逆向工程,根据数据库来生成实体类以及mapper映射文件
1.第一步先添加依赖
<dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.6</version> </dependency> <dependency> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-core</artifactId> <version>1.3.2</version> </dependency>
2.在build标签中对插件进行配置
<plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.2</version> <configuration> <configurationFile>src/main/resources/generatorConfig.xml</configurationFile> <verbose>true</verbose> <overwrite>true</overwrite> </configuration> <dependencies> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.46</version> </dependency> </dependencies> </plugin>
3.在pom文件指定的配置文件路径下添加插件的配置文件
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> <context id="default" targetRuntime="Mybatis3"> <commentGenerator> <property name="suppressAllComments" value="true"/> </commentGenerator> <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/estore_db" userId="root" password="123456"/> <javaTypeResolver > <property name="forceBigDecimals" value="false"/> </javaTypeResolver> <javaModelGenerator targetPackage="cn.estore.pojo" targetProject=".srcmainjava"> <property name="enableSubPackage" value="false"/> <property name="trimStrings" value="true"/> </javaModelGenerator> <sqlMapGenerator targetPackage="cn.estore.mapper" targetProject="./src/main/java"> <property name="enableSubPackages" value="false"/> </sqlMapGenerator> <javaClientGenerator type="XMLMAPPER" targetPackage="cn.estore.mapper" targetProject=".srcmainjava"> <property name="enableSubPackages" value="false"/> </javaClientGenerator> <table tableName="tb_link"/> <table tableName="tb_board"/> <table tableName="tb_payment_mode"/> <table tableName="tb_user"/> <table tableName="tb_category_main"/> <table tableName="tb_category_branch"/> <table tableName="tb_bill"/> <table tableName="tb_product"/> <table tableName="tb_bill_item"/> <table tableName="tb_user_cart"/> </context> </generatorConfiguration>
4.运行插件,即可在项目中生成实体类以及数据库映射文件
5.mapper映射文件在运行时可能会没有被编译,需要在build标签中添加resources配置
<resources> <resource> <directory>src/main/java</directory><!--java文件的路径--> <includes> <include>**/*.*</include> </includes> <!-- <filtering>false</filtering>--> </resource> <resource> <directory>src/main/resources</directory><!--资源文件的路径--> <includes> <include>**/*.*</include> </includes> <!-- <filtering>false</filtering>--> </resource> </resources>
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