IntelliJ IDEA MyBatis-Plugin插件的使用

使用IntelliJ IDEA安装MyBatis-Plugin插件。

http://myoss.github.io/2016/MyBatis-Plugin-学习使用/

通过简单的配置就可以生成所需的实体类、mapper映射文件和接口。

在src/main/resources目录下新建mybatis-generator配置文件。

生成文件如下所示：

<?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>    <!-- !!!! Driver Class Path !!!! -->    <classPathEntry location=""/>    <context id="context" targetRuntime="MyBatis3">        <commentGenerator>            <property name="suppressAllComments" value="false"/>            <property name="suppressDate" value="true"/>        </commentGenerator>        <!-- !!!! Database Configurations !!!! -->        <jdbcConnection driverClass="" connectionURL="" userId="" password=""/>        <javaTypeResolver>            <property name="forceBigDecimals" value="false"/>        </javaTypeResolver>        <!-- !!!! Model Configurations !!!! -->        <javaModelGenerator targetPackage="" targetProject="THIS_CONFIGURATION_IS_NOT_REQUIRED">            <property name="enableSubPackages" value="false"/>            <property name="trimStrings" value="true"/>        </javaModelGenerator>        <!-- !!!! Mapper XML Configurations !!!! -->        <sqlMapGenerator targetPackage="" targetProject="THIS_CONFIGURATION_IS_NOT_REQUIRED">            <property name="enableSubPackages" value="false"/>        </sqlMapGenerator>        <!-- !!!! Mapper Interface Configurations !!!! -->        <javaClientGenerator targetPackage="" targetProject="THIS_CONFIGURATION_IS_NOT_REQUIRED" type="XMLMAPPER">            <property name="enableSubPackages" value="false"/>        </javaClientGenerator>        <!-- !!!! Table Configurations !!!! -->        <table tableName="" enableCountByExample="false" enableDeleteByExample="false" enableSelectByExample="false"               enableUpdateByExample="false"/>    </context></generatorConfiguration>

<properties url="file:///D:/N3verL4nd/Desktop/M/src/main/resources/jdbc.properties"/>

<!-- !!!! Database Configurations !!!! --><jdbcConnection driverClass="${jdbc.driverClassName}" connectionURL="${jdbc.url}" userId="${jdbc.username}" password="${jdbc.password}"/>

可以如上加载数据库配置文件，貌似使用resource不能使用。

详细配置说明：

http://www.jianshu.com/p/e09d2370b796

http://luoxianming.cn/2016/03/15/mybatis0/

作如下配置：

<?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>    <!-- !!!! Driver Class Path !!!! -->    <classPathEntry location="D:\Java\gradle\home\caches\modules-2\files-2.1\mysql\mysql-connector-java\5.1.40\ef2a2ceab1735eaaae0b5d1cccf574fb7c6e1c52\mysql-connector-java-5.1.40.jar "/>    <context id="context" targetRuntime="MyBatis3">        <property name="javaFileEncoding" value="UTF-8"/>        <commentGenerator>            <property name="suppressAllComments" value="true"/>            <property name="suppressDate" value="false"/>        </commentGenerator>        <!-- !!!! Database Configurations !!!! -->        <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost/test" userId="root" password="lgh123"/>        <javaTypeResolver>            <property name="forceBigDecimals" value="false"/>        </javaTypeResolver>        <!-- !!!! Model Configurations !!!! -->        <javaModelGenerator targetPackage="cn.bjut.entity" targetProject="src/main/java">            <property name="enableSubPackages" value="true"/>            <property name="trimStrings" value="true"/>        </javaModelGenerator>        <!-- !!!! Mapper XML Configurations !!!! -->        <sqlMapGenerator targetPackage="mapper" targetProject="src/main/resources">            <property name="enableSubPackages" value="true"/>        </sqlMapGenerator>        <!-- !!!! Mapper Interface Configurations !!!! -->        <javaClientGenerator targetPackage="cn.bjut.mapper" targetProject="src/main/java" type="XMLMAPPER">            <property name="enableSubPackages" value="true"/>        </javaClientGenerator>        <!-- !!!! Table Configurations !!!! -->        <table tableName="persons" enableCountByExample="false" enableDeleteByExample="false" enableSelectByExample="false"               enableUpdateByExample="false" domainObjectName="Person"/>    </context></generatorConfiguration>

domainObjectName：生成实体类、映射的名称（此处就是Person.java、PersonMapper.java、PersonMapper.xml）

在配置该xml文件前你得先创建相应的目录结构。

在该xml文件上右键：

就会自动生成实体类、mapper映射文件和相应的接口了。

生成前后对应的目录结构：

不知道是不是该插件本身的bug还是破解导致的bug：

<sqlMapGenerator targetPackage="cn.bjut.mapper" targetProject="src/main/resources">    <property name="enableSubPackages" value="true"/></sqlMapGenerator>

如上配置，经测试，该插件将mapper映射文件生成在src/main/java路径下，而不是在src/main/resources目录下。

后来使用官方的生成代码则没有问题，这也证实了该bug的存在。

package cn.bjut;import org.mybatis.generator.api.MyBatisGenerator;import org.mybatis.generator.config.Configuration;import org.mybatis.generator.config.xml.ConfigurationParser;import org.mybatis.generator.exception.InvalidConfigurationException;import org.mybatis.generator.exception.XMLParserException;import org.mybatis.generator.internal.DefaultShellCallback;import java.io.IOException;import java.io.InputStream;import java.sql.SQLException;import java.util.ArrayList;import java.util.List;/** * Created by N3verL4nd on 2017/7/6. */public class MyBatisGene {    public static void main(String[] args) throws IOException, XMLParserException, InvalidConfigurationException, SQLException, InterruptedException {        List<String> warnings = new ArrayList<>();        boolean overwrite = true;        InputStream in = MyBatisGene.class.getClassLoader().getResourceAsStream("mybatis-generator-config.xml");        ConfigurationParser cp = new ConfigurationParser(warnings);        Configuration config = cp.parseConfiguration(in);        DefaultShellCallback callback = new DefaultShellCallback(overwrite);        MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings);        myBatisGenerator.generate(null);    }}