记一次IDEA利用mybatis-generator自动生成dao和mapper

注：基于SpringBoot下

第一步：pom文件

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.thinkbar.Hello</groupId>
    <artifactId>Hello</artifactId>
    <version>1.0-SNAPSHOT</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.0.RELEASE</version>
    </parent>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>

    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.2</version>
            </plugin>
        </plugins>
    </build>

</project>

第二步：generatorConfig.xml

<?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>
    <!--数据库驱动mysql jar 这个地方要注意确保jar的位置正确，要区分在IDEA中jar在.m2中还是自定义的文件夹中-->
    <classPathEntry
            location="D:\repository\mysql\mysql-connector-java\5.1.45\mysql-connector-java-5.1.45.jar"/>
    <!--数据库驱动oracle jar -->
    <!--
    <classPathEntry
            location="E:\app\Acer\product\11.2.0\client_2\jdbc\lib\ojdbc5.jar"/>-->
    <context id="Tables" targetRuntime="MyBatis3">
        <!--去除注释 -->

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

        <!--mysql数据库连接 -->

        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/user"
                        userId="root"
                        password="root">
        </jdbcConnection>
        <!--oracle数据库连接 -->
        <!--
       <jdbcConnection driverClass="oracle.jdbc.driver.OracleDriver"
                       connectionURL="jdbc:oracle:thin:@172.16.36.23:1521/FOKF"
                       userId="YCGCE" password="YCGCE">
           <property name="remarksReporting" value="true"></property>
       </jdbcConnection>-->

        <!--默认false Java type resolver will always use java.math.BigDecimal if
            the database column is of type DECIMAL or NUMERIC. -->
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false"/>
        </javaTypeResolver>

        <!--生成实体类 指定包名 以及生成的地址 （可以自定义地址，但是路径不存在不会自动创建 使用Maven生成在target目录下，会自动创建） -->
        <javaModelGenerator targetPackage="com.thinkbar"
                            targetProject="E:\development_tools\javaProject\Hello\src\main\java">
            <property name="enableSubPackages" value="true"/>
            <property name="trimStrings" value="true"/>
        </javaModelGenerator>
        <!--生成SQLMAP文件 -->
        <sqlMapGenerator targetPackage="mapper"
                         targetProject="E:\development_tools\javaProject\Hello\src\main\resources">
            <property name="enableSubPackages" value="false"/>
        </sqlMapGenerator>
        <!--生成Dao文件 可以配置 type="XMLMAPPER"生成xml的dao实现 context id="DB2Tables" 修改targetRuntime="MyBatis3" -->
        <javaClientGenerator type="XMLMAPPER"
                             targetPackage="com.dao"
                             targetProject="E:\development_tools\javaProject\Hello\src\main\java">
            <property name="enableSubPackages" value="false"/>
        </javaClientGenerator>

        <!--对应数据库表 mysql可以加入主键自增 字段命名 忽略某字段等 -->
        <table tableName="user" domainObjectName="User"
               enableCountByExample="false" enableUpdateByExample="false"
               enableDeleteByExample="false" enableSelectByExample="false"
               selectByExampleQueryId="false"/>


    </context>
</generatorConfiguration>

第三步：右侧插件中找到 generatorConfig双击运行即可，注意的时当对应的包不存在时，该插件不会自动创建