使用Mybatis-Generator自动生成Dao,Entity,Mapping

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 generatorConfig.xml(Oracle数据库)

<?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>  
    <!-- 数据库驱动-->  
    <classPathEntry  location="ojdbc-5.jar"/>
    
    <context id="DB2Tables"  targetRuntime="MyBatis3">  
        <commentGenerator>  
            <property name="suppressDate" value="true"/>  
            <!-- 是否去除自动生成的注释 true:是  false:否-->  
            <property name="suppressAllComments" value="true"/>  
        </commentGenerator>  
        <!--数据库连接url,用户名,密码-->  
        <jdbcConnection 
            driverClass="oracle.jdbc.driver.OracleDriver"
            connectionURL="jdbc:oracle:thin:@10.10.1.1:1521:DataBaseName"
            userId="root" password="123456">
        </jdbcConnection>
       
        <javaTypeResolver>  
            <property name="forceBigDecimals" value="false"/>  
        </javaTypeResolver>  
        <!-- 生成模型的包名和位置-->  
        <javaModelGenerator targetPackage="com.jeeplus.modules.mediaCapital.program.entity" targetProject="src">  
            <property name="enableSubPackages" value="true"/>  
            <property name="trimStrings" value="true"/>  
        </javaModelGenerator>  
        <!-- 生成映射文件的包名和位置-->  
        <sqlMapGenerator targetPackage="com.jeeplus.modules.mediaCapital.program.mapper" targetProject="src">  
            <property name="enableSubPackages" value="true"/>  
        </sqlMapGenerator>  
        <!-- 生成DAO的包名和位置-->  
        <javaClientGenerator type="XMLMAPPER" targetPackage="com.jeeplus.modules.mediaCapital.program.dao" targetProject="src">  
            <property name="enableSubPackages" value="true"/>  
        </javaClientGenerator>  
        <!-- 要生成的表 tableName:是数据库中表名或视图名 domainObjectName:是实体类名 schema="数据库用户名" schema如果加上,则生成的mapping文件会有数据库前缀  -->  
        <table tableName="STUDENT" domainObjectName="Student" enableCountByExample="false" 
        enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" 
        selectByExampleQueryId="false"></table>
    </context>  
</generatorConfiguration>  

 generatorConfig.xml(Mysql数据库)

<?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>  
    <!-- 数据库驱动-->  
    <classPathEntry  location="mysql-connector-java-8.0.17.jar"/>
    
    <context id="DB2Tables"  targetRuntime="MyBatis3">  
        <commentGenerator>  
            <property name="suppressDate" value="true"/>  
            <!-- 是否去除自动生成的注释 true:是  false:否 -->  
            <property name="suppressAllComments" value="true"/>  
        </commentGenerator> 
 
        <!--数据库连接url,用户名,密码-->  
        <jdbcConnection driverClass="com.mysql.jdbc.Driver" 
            connectionURL="jdbc:mysql://localhost/dataBaseName" 
            userId="root" password="123456">
        </jdbcConnection>
        
        <javaTypeResolver>  
            <property name="forceBigDecimals" value="false"/>  
        </javaTypeResolver>  
        <!-- 生成模型的包名和位置-->  
        <javaModelGenerator targetPackage="com.jeeplus.modules.mediaCapital.program.entity" targetProject="src">  
            <property name="enableSubPackages" value="true"/>  
            <property name="trimStrings" value="true"/>  
        </javaModelGenerator>  
        <!-- 生成映射文件的包名和位置-->  
        <sqlMapGenerator targetPackage="com.jeeplus.modules.mediaCapital.program.mapper" targetProject="src">  
            <property name="enableSubPackages" value="true"/>  
        </sqlMapGenerator>  
        <!-- 生成DAO的包名和位置-->  
        <javaClientGenerator type="XMLMAPPER" targetPackage="com.jeeplus.modules.mediaCapital.program.dao" targetProject="src">  
            <property name="enableSubPackages" value="true"/>  
        </javaClientGenerator>  
        <!-- 要生成的表 tableName:是数据库中表名或视图名 domainObjectName:是实体类名 schema="数据库用户名" schema如果加上,则生成的mapping文件会有数据库前缀  -->  
        <table tableName="STUDENT" domainObjectName="Student" enableCountByExample="false" 
        enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" 
        selectByExampleQueryId="false"></table>
    </context>  
</generatorConfiguration>  

点击run-mybatis-generator.bat运行

或者在该目录打开CMD,运行以下命令:

java -jar mybatis-generator-core-1.3.2.jar -configfile generatorConfig.xml -overwrite

原文地址:https://www.cnblogs.com/xmm2017/p/13944139.html