mybatis-generator插件实现代码自动生成

1、安装插件 Free MyBatis plugin

 2、在pom.xml中引入mybatis-generator-maven-plugin插件依赖

<build>
        <plugins>
        
            <!--Mybatis代码自动生成器-->
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.5</version>
                <dependencies>
                    <dependency>
                        <groupId> mysql</groupId>
                        <artifactId> mysql-connector-java</artifactId>
                        <version>8.0.28</version>
                        <!--  <version> 5.1.39</version>  -->
                    </dependency>
                </dependencies>
                <executions>
                    <execution>
                        <id>Generate MyBatis Artifacts</id>
                        <phase>package</phase>
                        <goals>
                            <goal>generate</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <!--允许移动生成的文件 -->
                    <verbose>true</verbose>
                    <!-- 是否覆盖 -->
                    <overwrite>true</overwrite>
                    <!-- 自动生成的配置 -->
                    <configurationFile>src/main/resources/generatorConfig.xml</configurationFile>
                </configuration>
            </plugin>

        </plugins>
    </build>

3、在resources文件夹下新建 generatorConfig.xml 配置文件

（参考如下，需要修改的地方有⑥处，需要修改的值已经标注出来，改成自己的就行）

<?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="MysqlTables" targetRuntime="MyBatis3">
        <commentGenerator>
            <property name="suppressDate" value="true"/>
            <property name="suppressAllComments" value="true"/>
        </commentGenerator>
        <!--数据库链接地址账号密码 ①-->
        <jdbcConnection driverClass="com.mysql.cj.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/testdb?useUnicode=true&amp;serverTimezone=GMT%2b8&amp;characterEncoding=UTF-8&amp;useSSL=false&amp;failOverReadOnly=false"
                        userId="root" password="123456">
        </jdbcConnection>
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false"/>
        </javaTypeResolver>
        <!--生成Model类存放位置 ②pojo路径：com.xpf.distributelock.pojo-->
        <javaModelGenerator targetPackage="com.xpf.distributelock.pojo" targetProject="src/main/java">
            <property name="enableSubPackages" value="true"/>
            <property name="trimStrings" value="true"/>
        </javaModelGenerator>
        <!--生成映射文件存放位置 ③xml路径：com.xpf.distributelock.dao-->
        <!--这个位置一定要和下面的dao接口的路径一样才能找到-->
        <sqlMapGenerator targetPackage="com.xpf.distributelock.dao" targetProject="src/main/resources">
            <property name="enableSubPackages" value="true"/>
        </sqlMapGenerator>
        <!--生成Dao类存放位置 ④dao路径：com.xpf.distributelock.dao-->
        <!-- 客户端代码，生成易于使用的针对Model对象和XML配置文件 的代码
                type="ANNOTATEDMAPPER",生成Java Model 和基于注解的Mapper对象
                type="MIXEDMAPPER",生成基于注解的Java Model 和相应的Mapper对象
                type="XMLMAPPER",生成SQLMap XML文件和独立的Mapper接口
        -->
        <javaClientGenerator type="XMLMAPPER" targetPackage="com.xpf.distributelock.dao" targetProject="src/main/java">
            <property name="enableSubPackages" value="true"/>
        </javaClientGenerator>

        <!--生成对应表及类名 ⑤表名：distribute_lock ⑥程序对应表的实体名：DistributeLock-->
        <table tableName="distribute_lock" domainObjectName="DistributeLock" enableCountByExample="false" enableUpdateByExample="false"
               enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false">
            <!--添加属性useActualColumnNames为true,那么生成的对象字段就跟表一样-->
<!--            <property name="useActualColumnNames" value="true"/>-->
        </table>
        <!--<table tableName="test_table" domainObjectName="TestTable"></table>-->
    </context>
</generatorConfiguration>

4、修改完后，点击右边maven -> mybatis-generator -> mybatis-genarator:generate

 over !!!

---

附上pom.xml完整文件

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.5.13</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.xpf</groupId>
    <artifactId>distribute_lock</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>distribute_lock</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.2.2</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>

            <!--Mybatis代码自动生成器-->
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.5</version>
                <dependencies>
                    <dependency>
                        <groupId> mysql</groupId>
                        <artifactId> mysql-connector-java</artifactId>
                        <version>8.0.28</version>
                        <!--  <version> 5.1.39</version>  -->
                    </dependency>
                </dependencies>
                <executions>
                    <execution>
                        <id>Generate MyBatis Artifacts</id>
                        <phase>package</phase>
                        <goals>
                            <goal>generate</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <!--允许移动生成的文件 -->
                    <verbose>true</verbose>
                    <!-- 是否覆盖 -->
                    <overwrite>true</overwrite>
                    <!-- 自动生成的配置 -->
                    <configurationFile>src/main/resources/generatorConfig.xml</configurationFile>
                </configuration>
            </plugin>

        </plugins>
    </build>

</project>