MyBatisGenerator使用

1. 创建 Maven 工程, pom.xml 如下:

   <?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>
   
       <parent>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-parent</artifactId>
           <version>2.2.4.RELEASE</version>
           <relativePath/> <!-- lookup parent from repository -->
       </parent>
   
       <groupId>cool.gkj</groupId>
       <artifactId>mbg</artifactId>
       <version>1.0-SNAPSHOT</version>
   
       <properties>
           <java.version>1.8</java.version>
       </properties>
   
       <dependencies>
           <dependency>
               <groupId>mysql</groupId>
               <artifactId>mysql-connector-java</artifactId>
           </dependency>
           <dependency>
               <groupId>org.mybatis.spring.boot</groupId>
               <artifactId>mybatis-spring-boot-starter</artifactId>
               <version>2.1.1</version>
           </dependency>
   
           <dependency>
               <groupId>org.mybatis.generator</groupId>
               <artifactId>mybatis-generator-core</artifactId>
               <version>1.4.0</version>
           </dependency>
   
           <dependency>
               <groupId>org.joda</groupId>
               <artifactId>joda-money</artifactId>
               <version>LATEST</version>
           </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>
               </plugin>
           </plugins>
   
           <resources>
               <resource>
                   <directory>src/main/java</directory>
                   <includes>
                       <include>**/*.xml</include>
                   </includes>
               </resource>
           </resources>
       </build>
   
   </project>
   

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.FluentBuilderMethodsPlugin" />
           <plugin type="org.mybatis.generator.plugins.ToStringPlugin" />
           <plugin type="org.mybatis.generator.plugins.SerializablePlugin" />
           <plugin type="org.mybatis.generator.plugins.RowBoundsPlugin" />
   
           <commentGenerator>
               <property name="suppressAllComments" value="true"/>
           </commentGenerator>
   
           <jdbcConnection driverClass="com.mysql.cj.jdbc.Driver"
                           connectionURL="jdbc:mysql://127.0.0.1/mbg"
                           userId="root"
                           password="">
           </jdbcConnection>
   
           <javaModelGenerator targetPackage="cool.gkj.model" targetProject="src/main/java">
               <property name="enableSubPackages" value="true"/>
               <property name="trimStrings" value="true"/>
           </javaModelGenerator>
   
           <sqlMapGenerator targetPackage="cool.gkj.mapper" targetProject="src/main/resources">
               <property name="enableSubPackages" value="true"/>
           </sqlMapGenerator>
   
           <javaClientGenerator type="XMLMAPPER" targetPackage="cool.gkj.mapper" targetProject="src/main/java">
               <property name="enableSubPackages" value="true"/>
           </javaClientGenerator>
   
           <!-- 要生成的表 tableName是数据库中的表名或视图名 domainObjectName是实体类名-->
           <table tableName="t_coffee" domainObjectName="Coffee" enableCountByExample="false"
                  enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"
                  selectByExampleQueryId="false"/>
   
       </context>
   </generatorConfiguration>
   

3. MBGApplication

   public class MBGApplication implements ApplicationRunner {
   
       public static void main(String[] args) {
           SpringApplication.run(MBGApplication.class, args);
       }
   
       @Override
       public void run(ApplicationArguments args) throws Exception {
           generateArtifacts();
       }
   
       private void generateArtifacts() throws Exception {
           List<String> warnings = new ArrayList<>();
           ConfigurationParser cp = new ConfigurationParser(warnings);
           Configuration config = cp.parseConfiguration(this.getClass().getResourceAsStream("/generatorConfig.xml"));
           DefaultShellCallback callback = new DefaultShellCallback(true);
           MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings);
           myBatisGenerator.generate(null);
       }
   }
   

4. Run MBGApplication.main()