mybatis-generator(mybatis根据已创建表反向生成对应的实体类、mapper文件和mapper.xml文件)

xiaoxiao2021-03-01  7

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1在pom.xml中做两处配置

配置dependency,在<dependencys>中加入:

<dependency> <groupId>org.mybatis.generator</groupId>     <artifactId>mybatis-generator-core</artifactId> <version>1.3.5</version> </dependency>

配置plugin

在 <build> 这个节点的<plugins>节点内部加入一个<plugin>,如下:

<plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.2</version> <executions> <execution> <id>Generate MyBatis Files</id> <goals> <goal>generate</goal> </goals> <phase>generate</phase> <configuration> <verbose>true</verbose> <overwrite>true</overwrite> </configuration> </execution> </executions> <dependencies> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.38</version> </dependency> <dependency> <groupId>org.mybatis.generator</groupId>         <artifactId>mybatis-generator-core</artifactId> <version>1.3.5</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.4.2</version> </dependency> </dependencies> </plugin>

    注意:这个plugin里面又使用dependencies引入了mysql 的驱动和mybatis的相关jar包,这个不能省略。

 

2创建generatorConfig.xml

 在resource目录下创建generatorConfig.xml配置文件,代码如下:

<?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> <classPathEntry location="E:\maven\house\mysql\mysql-connector-java\5.1.46\mysql-connector-java-5.1.46.jar"/> <context id="mybatis" targetRuntime="MyBatis3"> <commentGenerator> <property name="suppressDate" value="false"/> <property name="suppressAllComments" value="true"/> </commentGenerator> <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/target?characterEncoding=UTF-8" userId="root" password="ds8297901"/> <javaModelGenerator targetPackage="com.geovis.domain" targetProject="E:\eclipse\GV\target\target-service\src\main\java"> <property name="enableSubPackages" value="true"/> <property name="trimStrings" value="true"/> </javaModelGenerator> <sqlMapGenerator targetPackage="com.geovis.mapper.mapperxml" targetProject="E:\eclipse\GV\target\target-service\src\main\java"> <property name="enableSubPackages" value="true"/> </sqlMapGenerator> <javaClientGenerator targetPackage="com.geovis.mapper" targetProject="E:\eclipse\GV\target\target-service\src\main\java" type="XMLMAPPER"> <property name="enableSubPackages" value="true"/> </javaClientGenerator> <table tableName="target" domainObjectName="Target" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table> <table tableName="target_file" domainObjectName="TargetFile" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table> <table tableName="target_classify" domainObjectName="TargetClassify" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table> <table tableName="target_relation" domainObjectName="TargetRelation" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table> <table tableName="target_coordinate" domainObjectName="TargetCoordinate" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table> </context> </generatorConfiguration>

3打开项目存在.project文件的这个路径,在此处打开命令窗口

执行mvn mybatis-generator:generate命令,成功之后,刷新项目,就看到自动生成了实体,mapper和mapper.xml文件

 

 

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