Intellij IDEA中使用MyBatis-generator自动生成MyBatis代码（Oracle）

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我是靠谱客的博主自然巨人，最近开发中收集的这篇文章主要介绍Intellij IDEA中使用MyBatis-generator自动生成MyBatis代码（Oracle），觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

原文地址：http://blog.csdn.net/z69183787/article/details/46560071

Intellij IDEA 14 作为JavaIDE 神器，接触后发现，非常好用，对它爱不释手，打算离开eclipse和myeclipse，投入Intellij IDEA的怀抱。

然而在使用的过程中会发现Intellij IDEA也有一些不尽如意的地方，难免会有些不爽：Intellij IDEA 的插件库远不及eclipse的丰富。 mybatis-generator在eclipse中有专门的插件，而没有开发出Intellij IDEA能够使用的插件。

不过不用灰心，如果你的项目是使用maven组织的，那么我们可以在Intellij IDEA中使用 mybatis-generator-maven-plugin插件来完成MyBatis model 和Mapper文件的自动生成。

STEP 0.在Intellij IDEA创建maven项目（本过程比较简单，略）

STEP 1. 在maven项目的pom.xml 添加mybatis-generator-maven-plugin 插件

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<build>
  <finalName>xxx</finalName>
  <plugins>
    <plugin>
      <groupId>org.mybatis.generator</groupId>
      <artifactId>mybatis-generator-maven-plugin</artifactId>
      <version>1.3.2</version>
      <configuration>
        <verbose>true</verbose>
        <overwrite>true</overwrite>
      </configuration>
    </plugin>
  </plugins>
</build>

STEP 2. 在maven项目下的src/main/resources 目录下建立名为 generatorConfig.xml的配置文件，作为mybatis-generator-maven-plugin 插件的执行目标，模板如下：

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<?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="generator.properties"></properties>

    
    <classPathEntry location="${jdbc.driverLocation}"/>

    <context id="default" targetRuntime="MyBatis3">


        
        <commentGenerator>
            <property name="suppressDate" value="true" />
        </commentGenerator>


        
        <jdbcConnection driverClass="${jdbc.driverClass}" connectionURL="${jdbc.connectionURL}" userId="${jdbc.userId}" password="${jdbc.password}">
        </jdbcConnection>



        
        <javaTypeResolver >
            <property name="forceBigDecimals" value="false" />
        </javaTypeResolver>

        
        <javaModelGenerator targetPackage="org.louis.hometutor.po" targetProject="src/main/java">
            
            <property name="constructorBased" value="true"/>

            
            <property name="enableSubPackages" value="false"/>

            
            <property name="immutable" value="true"/>

            
            <property name="rootClass" value="com.foo.louis.Hello"/>

            
            <property name="trimStrings" value="true"/>
        </javaModelGenerator>

        
        <sqlMapGenerator targetPackage="org.louis.hometutor.domain" targetProject="src/main/java">
            <property name="enableSubPackages" value="false"/>
        </sqlMapGenerator>


        
        <javaClientGenerator targetPackage="com.foo.tourist.dao" targetProject="src/main/java" type="MIXEDMAPPER">
            <property name="enableSubPackages" value=""/>
            
            <property name="exampleMethodVisibility" value=""/>
            
            <property name="methodNameCalculator" value=""/>

            
            <property name="rootInterface" value=""/>

        </javaClientGenerator>



        <table tableName="lession" schema="louis">

            
            <generatedKey column="" sqlStatement="" identity="" type=""/>


            
            <columnRenamingRule searchString="" replaceString=""/>



            
            <ignoreColumn column="PLAN_ID"  delimitedColumnName="true" />


            
            <columnOverride column="" javaType=""    jdbcType="" typeHandler=""  delimitedColumnName="" />

        </table>
    </context>
</generatorConfiguration>

这里使用了外置的配置文件generator.properties，可以将一下属性配置到properties文件之中，增加配置的灵活性：

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jdbc.driverLocation=D:\maven\com\oracle\ojdbc14\10.2.0.4.0\ojdbc14-10.2.0.4.0.jar
jdbc.driverClass=oracle.jdbc.driver.OracleDriver
jdbc.connectionURL=jdbc:oracle:thin:@//localhost:1521/XE
jdbc.userId=LOUIS
jdbc.password=123456

项目目录如下：

STEP 3. 在Intellij IDEA添加一个“Run运行”选项，使用maven运行mybatis-generator-maven-plugin插件：

之后弹出运行配置框，为当前配置配置一个名称，这里其名为"generator",然后在 “Command line” 选项中输入“mybatis-generator:generate -e”

这里加了“-e ”选项是为了让该插件输出详细信息，这样可以帮助我们定位问题。

如果添加成功，则会在run 选项中有“generator” 选项，如下：

点击运行，然后不出意外的话，会在控制台输出：

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C:Javajdk1.7.0_71binjava -Dmaven.home=D:softwareapache-maven-3.0.5-bin -Dclassworlds.conf=D:softwareapache-maven-3.0.5-binbinm2.conf -Didea.launcher.port=7533 "-Didea.launcher.bin.path=D:applicationsJetBrainsIntelliJ IDEA 14.0.2bin" -Dfile.encoding=UTF-8 -classpath "D:softwareapache-maven-3.0.5-binbootplexus-classworlds-2.4.jar;D:applicationsJetBrainsIntelliJ IDEA 14.0.2libidea_rt.jar" com.intellij.rt.execution.application.AppMain org.codehaus.classworlds.Launcher -Didea.version=14.0.2 -s D:softwareapache-maven-3.0.5-binconfsettings.xml mybatis-generator:generate -e
[INFO] Error stacktraces are turned on.
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building hometutor Maven Webapp 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- mybatis-generator-maven-plugin:1.3.2:generate (default-cli) @ hometutor ---
[INFO] Connecting to the Database
[INFO] Introspecting table louis.lession
log4j:WARN No appenders could be found for logger (org.mybatis.generator.internal.db.DatabaseIntrospector).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[INFO] Generating Example class for table LOUIS.LESSION
[INFO] Generating Record class for table LOUIS.LESSION
[INFO] Generating Mapper Interface for table LOUIS.LESSION
[INFO] Generating SQL Map for table LOUIS.LESSION
[INFO] Saving file LessionMapper.xml
[INFO] Saving file LessionExample.java
[INFO] Saving file Lession.java
[INFO] Saving file LessionMapper.java
[WARNING] Root class com.foo.louis.Hello cannot be loaded, checking for member overrides is disabled for this class
[WARNING] Existing file E:sourcestutorsrcmainjavaorglouishometutorpoLession.java was overwritten
[WARNING] Existing file E:sourcestutorsrcmainjavacomfootouristdaoLessionMapper.java was overwritten
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.334s
[INFO] Finished at: Tue Jan 27 12:04:08 CST 2015
[INFO] Final Memory: 8M/107M
[INFO] ------------------------------------------------------------------------

Process finished with exit code 0

好，看到BUILD SUCCESS，则大功告成，如果有错误的话，由于添加了-e 选项，会把具体的详细错误信息打印出来的，根据错误信息修改即可