mybatis-generator 自动生成增删改查（CRUD）代码，包含Oracle和MySQL

Mybatis + MySQL

新建项目

为了更加清晰的知道这个工具的构成，新建一个maven干净的项目。

next后，填上自己的artifactId和groupId,然后next、finish。OK，一个空项目就新建成功了。

pom.xml添加依赖和插件

添加依赖：

 <dependencies>
        
        <dependency>
            <groupId>mysqlgroupId>
            <artifactId>mysql-connector-javaartifactId>
            <version>5.1.32version>
        dependency>

        <dependency>
            <groupId>org.mybatis.generatorgroupId>
            <artifactId>mybatis-generator-coreartifactId>
            <version>1.3.6version>
        dependency>

    dependencies>

添加插件：

  <build>
        <finalName>taotao-code-generatorfinalName>
        <plugins>
            <plugin>
                <groupId>org.mybatis.generatorgroupId>
                <artifactId>mybatis-generator-maven-pluginartifactId>
                <version>1.3.2version>
                <configuration>
                    
                    <configurationFile>F:\project-java\taotao-code-generate\src\main\resources\generator\generatorConfig.xmlconfigurationFile>
                    <verbose>trueverbose>
                    <overwrite>trueoverwrite>
                configuration>
            plugin>
        plugins>
    build>

为了避免错误，这里的configurationFile，我用的时绝对路径，即是generatorConfig.xml配置文件的位置。

配置generatorConfig.xml

由于上面的插件配置中，我用的是绝对路径，所以这里，这个文件，你可以建在任意的目录下，不多一般新建在resources目录下就行了。

<generatorConfiguration>
    
    <classPathEntry
            location="D:\programs\apache-maven-3.5.2\my-repository\repo\mysql\mysql-connector-java\5.1.32\mysql-connector-java-5.1.32.jar" />
    <context id="default" targetRuntime="MyBatis3">

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

        
        <jdbcConnection
                driverClass="com.mysql.jdbc.Driver"
                connectionURL="jdbc:mysql://127.0.0.1:3306/taotao"
                userId="root"
                password="123456">
        jdbcConnection>


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


        
        <javaModelGenerator targetPackage="com.sqlb.pojo"
                            targetProject="src/main/java">

            
            <property name="enableSubPackages" value="false"/>
            
            <property name="constructorBased" value="true"/>
            
            <property name="trimStrings" value="true"/>
            
            <property name="immutable" value="false"/>
        javaModelGenerator>

        
        <sqlMapGenerator targetPackage="com.sqlb.mapper"
                         targetProject="src/main/java">
            <property name="enableSubPackages" value="false"/>
        sqlMapGenerator>

        
        <javaClientGenerator targetPackage="com.sqlb.mapper"
                             targetProject="src/main/java" type="XMLMAPPER">
            <property name="enableSubPackages" value="true"/>
        javaClientGenerator>


        <table tableName="reguser" domainObjectName="User"
               enableCountByExample="false" enableUpdateByExample="false"
               enableDeleteByExample="false" enableSelectByExample="false"
               selectByExampleQueryId="false">
        table>

        
        <table schema="" tableName="tb_content">table>
        <table schema="" tableName="tb_content_category">table>
        <table schema="" tableName="tb_item">table>
        <table schema="" tableName="tb_item_cat">table>
        <table schema="" tableName="tb_item_desc">table>
        <table schema="" tableName="tb_item_param">table>
        <table schema="" tableName="tb_item_param_item">table>
        <table schema="" tableName="tb_order">table>
        <table schema="" tableName="tb_order_item">table>
        <table schema="" tableName="tb_order_shipping">table>
        <table schema="" tableName="tb_user">table>
    
    context>
generatorConfiguration>

配置当中，classPathEntry表示的是mysql-connector-java-5.1.32.jar的绝对路径，不要搞错了。什么？你找不到该jar包的路径。好吧，File---->settings---->Maven，如下图：

去这个路径找吧，根据依赖的坐标，就可以找到对应的jar包了。

运行

运行有很多种方法，这里推荐一个最简单的：

因为之前添加了插件，就会产生mybatis-generator，就是刚才添加的哪个插件，好了，双击运行，代码就出来了。

Mybatis + Oracle

Oracle与Mysql同理。

pom.xml添加依赖

    <dependencies>
        
        <dependency>
            <groupId>com.oraclegroupId>
            <artifactId>ojdbcartifactId>
            <version>6version>
        dependency>

        <dependency>
            <groupId>org.mybatis.generatorgroupId>
            <artifactId>mybatis-generator-coreartifactId>
            <version>1.3.6version>
        dependency>
    dependencies>

    <repositories>
        
        <repository>
            <id>TalanRepositoryid>
            <url>http://nexus.talanlabs.com/content/repositories/releases/url>
        repository>
    repositories>


    <build>
        <finalName>taotao-code-generatorfinalName>
        <plugins>
            <plugin>
                <groupId>org.mybatis.generatorgroupId>
                <artifactId>mybatis-generator-maven-pluginartifactId>
                <version>1.3.2version>
                <configuration>
                    
                    <configurationFile>
                        G:\bankproject\mybatis-generator\src\main\resources\generator\generatorConfig.xml
                    configurationFile>
                    <verbose>trueverbose>
                    <overwrite>trueoverwrite>
                configuration>
            plugin>

            <plugin>
                <groupId>org.springframework.bootgroupId>
                <artifactId>spring-boot-maven-pluginartifactId>
            plugin>

        plugins>
    build>

generatorConfig.xml配置

<generatorConfiguration>
    
    <classPathEntry
            location="C:\Programs\apache-maven-3.5.2\local\repo\com\oracle\ojdbc\6\ojdbc-6.jar"/>
    <context id="default" targetRuntime="MyBatis3">

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

        
        <jdbcConnection
                driverClass="oracle.jdbc.OracleDriver"
                connectionURL="jdbc:oracle:thin:@192.168.10.56:1521:sxlib"
                userId="tt_rdv2"
                password="tt_rdv2oracle">
        jdbcConnection>


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


        
        <javaModelGenerator targetPackage="com.sx.mybatisgenerator.pojo"
                            targetProject="src/main/java">

            
            <property name="enableSubPackages" value="false"/>
            
            <property name="constructorBased" value="true"/>
            
            <property name="trimStrings" value="true"/>
            
            <property name="immutable" value="false"/>
        javaModelGenerator>

        
        <sqlMapGenerator targetPackage="com.sx.mybatisgenerator.mapper"
                         targetProject="src/main/java">
            <property name="enableSubPackages" value="false"/>
        sqlMapGenerator>

        
        <javaClientGenerator targetPackage="com.sx.mybatisgenerator.mapper"
                             targetProject="src/main/java" type="XMLMAPPER">
            <property name="enableSubPackages" value="true"/>
        javaClientGenerator>


        
        <table tableName="BK_PASSPORT_INFO" domainObjectName="PassportInfo"
               enableCountByExample="false" enableUpdateByExample="false"
               enableDeleteByExample="false" enableSelectByExample="false"
               selectByExampleQueryId="false">
        table>
    context>
generatorConfiguration>