MyBatis Generator ORM层面的代码自动生成器(推荐)

<dependency>         
<groupId>Mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
</dependency> 
<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-api</artifactId>
    <version>1.7.25</version>
</dependency>
<!-- mybatis-generator -->
<dependency>
    <groupId>org.mybatis.generator</groupId>
    <artifactId>mybatis-generator-core</artifactId>
    <version>1.3.7</version>
</dependency>

<?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>
<!--targetRuntime="MyBatis3"-->
<context id="mysql" defaultModelType="hierarchical" targetRuntime="MyBatis3Simple">
    <!-- 生成的Java文件的编码 -->
    <property name="javaFileEncoding" value="UTF-8" />
    <!-- beginningDelimiter和endingDelimiter：指明数据库的用于标记数据库对象名的符号，比如oracle就是双引号，MYSQL默认是`反引号； -->
    <property name="beginningDelimiter" value="`" />
    <property name="endingDelimiter" value="`" />

    <!-- 注释生成器 -->
    <commentGenerator>
        <property name="suppressDate" value="true" />
        <property name="suppressAllComments" value="true" />
    </commentGenerator>

    <!-- 必须要有的，使用这个配置链接数据库 @TODO:是否可以扩展 -->
    <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                    connectionURL="jdbc:mysql://localhost:3306/mybatis"
                    userId="root"
                    passWord="1111">
    </jdbcConnection>

    <!-- 生成domain对象 -->
    <javaModelGenerator targetPackage="com.sunny.domain" targetProject="mybatis-11_MBG/src/main/java">
        <property name="enableSubPackages" value="true" />
    </javaModelGenerator>

    <!-- 生成Mapper文件 -->
    <sqlMapGenerator targetPackage="com.sunny.mapper" targetProject="mybatis-11_MBG/\src\main\resources">
        <property name="enableSubPackages" value="true" />
    </sqlMapGenerator>

    <!-- 生成Mapper接口 -->
    <javaClientGenerator targetPackage="com.sunny.mapper" type="XMLMAPPER"
                         targetProject="mybatis-11_MBG/src/main/java">
        <property name="enableSubPackages" value="true" />
    </javaClientGenerator>


    <!-- Table   To   POJO -->
    <!--domainObjectName="User"-->
    <table tableName="user2" delimitIdentifiers="true">
        <property name="useActualColumnNames" value="true" />
        <generatedKey column="id" sqlStatement="JDBC" />
    </table>
  
</context>
</generatorConfiguration>

public class Generator {
	public static void main(String[] args) throws Exception {
		//MBG执行过程中的警告信息
		List<String> warnings = new ArrayList<String>();
		//生成代码重复时，是否覆盖源代码
		boolean override = false;
		InputStream in = Thread.currentThread().getContextClassLoader().getResourceAsStream("generatorConfig.xml");
		ConfigurationParser cp = new ConfigurationParser(warnings);
		Configuration config = cp.parseConfiguration(in);

		DefaultshellCallback callback = new DefaultShellCallback(override);
		//创建MBG
		MyBatisGenerator mbg = new MyBatisGenerator(config, callback, warnings);
		mbg.generate(null);
		//输出警告信息
		for (String warn : warnings) {
			System.out.println(warn);
		}
	}
}

<plugins>
    <plugin>
        <groupId>org.mybatis.generator</groupId>
        <artifactId>mybatis-generator-maven-plugin</artifactId>
        <version>1.4.0</version>
        <executions>
            <execution>
                <id>Generate MyBatis Artifacts</id>
                <Goals>
                    <goal>generate</goal>
                </goals>
            </execution>
        </executions>
        <configuration>
            <!-- 输出详细信息 -->
            <verbose>true</verbose>
            <!-- 覆盖生成文件 -->
            <overwrite>true</overwrite>
            <!-- 定义配置文件 -->
            <configurationFile>${basedir}/src/main/resources/generator-configuration.xml</configurationFile>
        </configuration>
    </plugin>
</plugins>