mybatis-generator和TKmybatis的结合使用

mybatis-generator可以自动生成mapper和entity文件，mybatis-generator有三种用法：命令行、eclipse插件、maven插件。这里使用的是maven插件方式，可以在eclipse/intellij idea等ide上可以通用。

TKmybatis提供一种通用mapper，它不需要针对每个mapper写sql语句，只需继承通用mapper调用相应的接口来完成单表的增删改查。

配置步骤：

1.pom文件中增加代码：

<plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>${mybatis.generator.version}</version>
                <configuration>
                    <configurationFile>src/main/resources/conf/generatorConfig.xml</configurationFile>
                    <verbose>true</verbose>
                    <overwrite>true</overwrite>
                </configuration>

                <dependencies>
                    <dependency>
                        <groupId>org.mybatis.generator</groupId>
                        <artifactId>mybatis-generator-core</artifactId>
                        <version>${mybatis.generator.version}</version>
                    </dependency>
                    <dependency>
                        <groupId>tk.mybatis</groupId>
                        <artifactId>mapper</artifactId>
                        <version>${tk.mybatis.version}</version>
                    </dependency>
                </dependencies>
        </plugin>

<properties>
        <!-- MyBatis Generator -->
        <mybatis.generator.version>1.3.2</mybatis.generator.version>
        <targetJavaProject>${basedir}/src/main/java</targetJavaProject>
        <targetMapperPackage>com.wdcloud.fayu.mapper</targetMapperPackage>
        <targetEntityPackage>com.wdcloud.fayu.entity</targetEntityPackage>
        <!-- tk.mybatis -->
        <tk.mybatis.version>3.3.6</tk.mybatis.version>
        <persistence.version>1.0</persistence.version>
　　　　 <mapper.plugin>tk.mybatis.mapper.generator.MapperPlugin</mapper.plugin>
        <mapper.Mapper>tk.mybatis.mapper.common.Mapper</mapper.Mapper>
</properties>
　　　　　
        <!--通用Mapper -->
        <dependency>
            <groupId>tk.mybatis</groupId>
            <artifactId>mapper</artifactId>
            <version>${tk.mybatis.version}</version>
        </dependency>
        <!-- eitity注解 -->
        <dependency>
            <groupId>javax.persistence</groupId>
            <artifactId>persistence-api</artifactId>
            <version>${persistence.version}</version>
        </dependency>

2.创建配置文件generatorConfig.xml，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> 

    <properties resource="conf/config.properties"/> 
    
    <!-- 数据库驱动包位置 -->  
    <classPathEntry  
        location="D:\程序\mysql-5.6.26-winx64\mysql-connector-java-5.1.17.jar" />
    
    <context id="Mysql" targetRuntime="MyBatis3Simple" defaultModelType="flat">
        <!-- TKmybatis配置 -->
        <property name="javaFileEncoding" value="UTF-8"/>
        <property name="beginningDelimiter" value="`"/>
        <property name="endingDelimiter" value="`"/>
        <plugin type="${mapper.plugin}">
          <property name="mappers" value="${mapper.Mapper}"/>
        </plugin>
     
        <commentGenerator>  
            <!-- 是否去除自动生成的注释 true：是 ： false:否 -->
            <property name="suppressAllComments" value="true"/>  
        </commentGenerator>  
        <!-- 数据库链接URL、用户名、密码 -->  
        <jdbcConnection driverClass="${jdbc.driver}"  
            connectionURL="${jdbc.url}" userId="${jdbc.username}" password="${jdbc.password}" />  
        <!-- 生成模型的包名和位置 -->  
        <javaModelGenerator targetPackage="${targetEntityPackage}" targetProject="${targetJavaProject}" />  
        <!-- 生成的映射文件包名和位置 -->  
        <sqlMapGenerator targetPackage="${targetMapperPackage}" targetProject="${targetJavaProject}" />  
        <!-- 生成service的包名和位置 -->  
        <javaClientGenerator targetPackage="${targetMapperPackage}" targetProject="${targetJavaProject}" type="XMLMAPPER" />  
        <!-- 要生成的那些表 -->  
        <table tableName="wd_resource" domainObjectName="WdResource" >
            <generatedKey column="id" sqlStatement="Mysql" identity="true"/>            
        </table>
        <table tableName="wd_course" domainObjectName="WdCourse" >
            <generatedKey column="id" sqlStatement="Mysql" identity="true"/>            
        </table>
        <table tableName="wd_solr" domainObjectName="WdSolr" >
              <generatedKey column="id" sqlStatement="Mysql" identity="true"/>              
        </table>
    </context>  
</generatorConfiguration> 

${targetEntityPackage}等在pom文件的properties中做了配置。

3.修改applicationContext.xml的MapperScannerConfigurer，代码如下：

　　<!-- 自动扫描注册Mybatis mapper -->
    <!-- <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property 
        name="basePackage" value="com.wdcloud.fayu.mapper" /> </bean> -->
            
    <!-- TKmybatis自动扫描注册Mybatis mapper -->
    <bean class="tk.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.wdcloud.fayu.mapper"/>
    </bean>

最后使用maven命令即可使用：

mvn mybatis-generator:generate

配置文件generatorConfig.xml详解：http://blog.csdn.net/isea533/article/details/42102297