SpringBoot - Mybatis Generator

最新推荐文章于 2020-09-10 17:05:36 发布

阿塬

最新推荐文章于 2020-09-10 17:05:36 发布

阅读量206

点赞数

分类专栏： SpringBoot

本文链接：https://blog.youkuaiyun.com/weixin_44050303/article/details/103899650

版权

SpringBoot 专栏收录该内容

6 篇文章

订阅专栏

本文详细介绍了如何在SpringBoot项目中使用MyBatisGenerator自动生成代码，包括配置maven依赖、generatorConfig.xml文件、application.yml配置、MapperScan注解及生成命令，帮助开发者快速上手。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

SpringBoot - Mybatis Generator

1、maven 依赖

 		<!--    mybatis generator    -->
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.4.0</version>
                <dependencies>
                    <dependency>
                        <groupId>mysql</groupId>
                        <artifactId>mysql-connector-java</artifactId>
                        <version>8.0.18</version>
                    </dependency>
                </dependencies>
            </plugin>

需要注意的是，jdbc要指定版本

2、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>

    <context id="DB2Tables" targetRuntime="MyBatis3">

        <plugin type="org.mybatis.generator.plugins.RowBoundsPlugin"></plugin>
        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/coummity?serverTimezone=UTC"
                        userId="root"
                        password="123456">
            //当实体类生成缺失的时候加上这句就好了
            <property name="nullCatalogMeansCurrent" value="true"/>
        </jdbcConnection>

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

        <javaModelGenerator targetPackage="com.gyy.community.model" targetProject="src\main\java">
            <property name="enableSubPackages" value="true" />
            <property name="trimStrings" value="true" />
        </javaModelGenerator>

        <sqlMapGenerator targetPackage="mapper"  targetProject="src\main\resources">
            <property name="enableSubPackages" value="true" />
        </sqlMapGenerator>

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

        <table tableName="user" domainObjectName="User" ></table>
        <table tableName="question" domainObjectName="Question" ></table>

    </context>
</generatorConfiguration>

注意，要将它放在resources文件夹下

3、application.yml

# mybatis
mybatis:
  configuration:
  	#驼峰命名
    map-underscore-to-camel-case: true
    #别名配置
  type-aliases-package: com.gyy.community.mapper
  	#mapper 文件目录
  mapper-locations: classpath:mapper/*.xml

4、MapperScan

在主配置类加入MapperScan 扫描的是mapper接口

@SpringBootApplication
@MapperScan("com.gyy.community.mapper")
public class CommunityApplication {

    public static void main(String[] args) {
        SpringApplication.run(CommunityApplication.class, args);
    }

}

5、命令

在控制台中输入以下命令

mvn -Dmybatis.generator.overwrite=true mybatis-generator:generate