我比OO更像数据库人(即使我能做到)。所以,我有一个数据库作为sql字符串,以及很多查询(当然也包括内容)。实际上,我并不想“将其键入”到OO模型(例如class Person int id get/set(int id)
等) - SQL非常快而不是那样。客户要求使用ORM。
是否有可以为我做到这一点的工具? (我宁愿编写自己的解析器来执行该过程,而不是“编写”所有的)。另外,如果mybatis无法做到,是否有其他ORM软件可以这样做? (任何ORM软件都可以,实际上,只是说mybatis是轻量级的,与sql类似)。
答案 0 :(得分:1)
你可以使用Mybatis generator plugin非常简单。
如果您在项目中使用maven,那么基本的插件配置
<pluginManagement>
<plugins>
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<versionRange>[1.3.2,)</versionRange>
<goals>
<goal>generate</goal>
</goals>
</pluginExecutionFilter>
<action>
<execute />
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.2</version>
<configuration>
<configurationFile>${basedir}/src/main/resources/kp-mybatis-generator.xml</configurationFile>
<outputDirectory>${basedir}/src/main/java</outputDirectory>
<overwrite>true</overwrite>
</configuration>
<executions>
<execution>
<id>Generate MyBatis Artifacts</id>
<goals>
<goal>generate</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
生成器xml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>
<classPathEntry location="C:\down\ojdbc6.jar" />
<context id="kpOracleGens" targetRuntime="MyBatis3Simple">
<jdbcConnection driverClass="oracle.jdbc.driver.OracleDriver"
connectionURL="jdbc:oracle:thin:@localhost:1521:KPORACLE" userId="******"
password="******">
</jdbcConnection>
<javaModelGenerator targetPackage="com.kp.swasthik.db.domain"
targetProject="MAVEN">
<property name="enableSubPackages" value="false" />
<property name="trimStrings" value="false" />
</javaModelGenerator>
<sqlMapGenerator targetPackage="com.kp.swasthik.db.persistence"
targetProject="MAVEN">
<property name="enableSubPackages" value="false" />
</sqlMapGenerator>
<javaClientGenerator type="XMLMAPPER"
targetPackage="com.kp.swasthik.db.mapper" targetProject="MAVEN"
implementationPackage="com.kp.swasthik.db.service">
<property name="enableSubPackages" value="true" />
</javaClientGenerator>
<table tableName="%KPC%" catalog="*" schema="kprasad">
<property name="useActualColumnNames" value="true" />
</table>
<table tableName="FOO" catalog="*" schema="kprasad">
<property name="useActualColumnNames" value="true" />
</table>
</context>
</generatorConfiguration>