MyBatis 根据表结构自动生成代码

需要mybatis-generator-core-1.3.2.jar文件，还需要数据库驱动，比如oracle就是ojdbc6-11.1.0.7.0.jar

编辑generator的配置文件

<?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>
    <!-- 数据库驱动包位置 -->
    <classPathEntry location="ojdbc6-11.1.0.7.0.jar"/>
 
    <context id="OracleTables" targetRuntime="MyBatis3">
        <commentGenerator>
            <property name="suppressAllComments" value="true"/>
        </commentGenerator>
 
        <!-- 数据库链接URL、用户名、密码 -->
        <jdbcConnection driverClass="oracle.jdbc.driver.OracleDriver" connectionURL="jdbc:oracle:thin:@xxx.xx.xxx.xxx:1521:orcl"
                        userId="xxx" password="xxx">
        </jdbcConnection>
 
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false"/>
        </javaTypeResolver>
 
        <!-- 生成模型的包名和位置 -->
        <javaModelGenerator targetPackage="com.xxx.model" targetProject="src">
            <property name="enableSubPackages" value="true"/>
            <property name="trimStrings" value="true"/>
        </javaModelGenerator>

        <!-- 生成的映射文件包名和位置 -->
        <sqlMapGenerator targetPackage="com.xxx.mapper" targetProject="src">
            <property name="enableSubPackages" value="true"/>
        </sqlMapGenerator>
 
        <!-- 生成DAO的包名和位置 -->
        <javaClientGenerator type="XMLMAPPER" targetPackage="com.xxx.mapper" targetProject="src">
            <property name="enableSubPackages" value="true"/>
        </javaClientGenerator>
 
        <!-- 要生成那些表(更改tableName和domainObjectName就可以) -->
        <table tableName="xxx" domainObjectName="xxx" enableCountByExample="false" enableUpdateByExample="false"
               enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"/>
    </context>
</generatorConfiguration>

执行命令就可以生成代码了

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