springboot中使用利用mybatis-generator自动生成代码（很详细）

川长思鸟来 2022-03-25 15:13 420阅读 0赞

首先在pom.xml的<plugins></plugins>中添加代码自动生成插件

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代码如下：

<plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.2</version> <configuration> <configurationFile>${basedir}/src/main/resources/generator/generatorConfig.xml</configurationFile> <overwrite>true</overwrite> <verbose>true</verbose> </configuration> </plugin>

然后在resource包下创建generator包，接着创建generatorConfig.xml

![20190121161131812.png][]

generatorConfig.xml的代码如下

<?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>
        
        <classPathEntry  location="G:/jdbc/mysql-connector-java-8.0.11.jar"/>
        <context id="DB2Tables"  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/springboot" userId="root" password="admin">
            </jdbcConnection>
            <javaTypeResolver>
                <property name="forceBigDecimals" value="false"/>
            </javaTypeResolver>
            
            <javaModelGenerator targetPackage="com.winter.model" targetProject="src/main/java">
                <property name="enableSubPackages" value="true"/>
                <property name="trimStrings" value="true"/>
            </javaModelGenerator>
            
            <sqlMapGenerator targetPackage="mapping" targetProject="src/main/resources">
                <property name="enableSubPackages" value="true"/>
            </sqlMapGenerator>
            
            <javaClientGenerator type="XMLMAPPER" targetPackage="com.winter.mapper" targetProject="src/main/java">
                <property name="enableSubPackages" value="true"/>
            </javaClientGenerator>
            
            <table tableName="t_user" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
            <table tableName="student" domainObjectName="Student" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
        </context>
    </generatorConfiguration>

然后，点击idea的run->editConfiguration

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2FiY18xMjM0NTZfX18_size_16_color_FFFFFF_t_70 1][]

点击左边的绿色\+加号，添加maven，然后在右边填上  mybatis-generator:generate -e，一般会自动提示的

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2FiY18xMjM0NTZfX18_size_16_color_FFFFFF_t_70 2][]

好了之后，就可以回到界面，点击运行了

![20190121161706776.png][]

接着说一下，generatorConfig.xml里面的内容，画箭头的就是要注意和改动的地方

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2FiY18xMjM0NTZfX18_size_16_color_FFFFFF_t_70 3][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2FiY18xMjM0NTZfX18_size_16_color_FFFFFF_t_70 4][]

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[20190121161131812.png]: /images/20220325/a9242d70f52f43138994a58f575d9793.png
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[20190121161706776.png]: /images/20220325/763e65aaed004130833896c24307ba3f.png
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