依赖

<!--mybatis-->
       <dependency>
           <groupId>com.baomidou</groupId>
           <artifactId>mybatis-plus</artifactId>
           <version>2.1.9</version>
       </dependency>
       <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-jdbc</artifactId>
       </dependency>
       <dependency>
           <groupId>com.baomidou</groupId>
           <artifactId>mybatisplus-spring-boot-starter</artifactId>
           <version>1.0.5</version>
       </dependency>

       <dependency>
           <groupId>org.apache.velocity</groupId>
           <artifactId>velocity</artifactId>
           <version>1.7</version>
       </dependency>

一些配置（和代码自动生成无关）

mybatis-plus.mapper-locations=classpath:/mapper/*.xml
mybatis-plus.typeAliasesPackage=com.example.model
mybatis-plus.global-config.id-type=2
mybatis-plus.global-config.field-strategy=2
mybatis-plus.global-config.db-column-underline=true
mybatis-plus.global-config.refresh-mapper=true
mybatis-plus.global-config.key-generator=com.baomidou.mybatisplus.incrementer.OracleKeyGenerator
mybatis-plus.configuration.map-underscore-to-camel-case=true
mybatis-plus.configuration.cache-enabled=false

导出设置类

public class MyGenerator {

    public static void main(String[] args) {
        String packageName = "com.example";
        generateByOracleTables(packageName,"TABLE_NAME");
    }

    /**
     * oracle
     *
     * @param packageName
     * @param tableNames
     */
    private static void generateByOracleTables(String packageName, String... tableNames) {
        GlobalConfig config = new GlobalConfig();
        String dbUrl = "数据库地址";
        DataSourceConfig dataSourceConfig = new DataSourceConfig();
        dataSourceConfig.setDbType(DbType.ORACLE)
                .setUrl(dbUrl)
                .setUsername("用户名")
                .setPassword("密码")
                .setDriverName("oracle.jdbc.driver.OracleDriver");
        StrategyConfig strategyConfig = new StrategyConfig();
        strategyConfig
//                .setTablePrefix("表名前缀(生成的实体会省略这个前缀)")
                .setCapitalMode(true)//驼峰命名
                .setEntityLombokModel(true)//使用lombk
                .setDbColumnUnderline(true)//驼峰命名
                .setRestControllerStyle(true)
                .setNaming(NamingStrategy.underline_to_camel)
                .setSuperEntityClass("com.example.common.SuperEntity")
                .setSuperMapperClass("com.example.common.SuperMapper")
                .setSuperControllerClass("com.example.common.SuperController")
                .setInclude(tableNames);//修改替换成你需要的表名，多个表名传数组

        config.setActiveRecord(false)
                .setAuthor("作者名")
                .setOutputDir("生成文件导出地址")
                .setEnableCache(false)
                .setBaseColumnList(true)
                .setBaseResultMap(true)
                .setFileOverride(true);

        new AutoGenerator().setGlobalConfig(config)
                .setDataSource(dataSourceConfig)
                .setStrategy(strategyConfig)
                .setPackageInfo(
                        new PackageConfig()
                                .setParent(packageName)
                                .setController("controller")
                                .setService("service")
                                .setServiceImpl("serviceImp")
                                .setEntity("model")
                ).execute();

    }

    /**
     * mysql
     *
     * @param packageName
     * @param tableNames
     */
    private static void generateByTables(String packageName, String... tableNames) {
        GlobalConfig config = new GlobalConfig();
        String dbUrl = "数据库地址";
        DataSourceConfig dataSourceConfig = new DataSourceConfig();
        dataSourceConfig.setDbType(DbType.MYSQL)
                .setUrl(dbUrl)
                .setUsername("root")
                .setPassword("123456")
                .setDriverName("com.mysql.jdbc.Driver");
        StrategyConfig strategyConfig = new StrategyConfig();
        strategyConfig
                .setCapitalMode(true)
                .setEntityLombokModel(false)
                .setDbColumnUnderline(true)
                .setNaming(NamingStrategy.underline_to_camel)
                .setSuperEntityClass("com.example.common.SuperEntity")
                .setSuperMapperClass("com.example.common.SuperMapper")
                .setInclude(tableNames);//修改替换成你需要的表名，多个表名传数组
        config.setActiveRecord(false)
                .setAuthor("作者名")
                .setOutputDir("生成目录")
                .setFileOverride(true);
        new AutoGenerator().setGlobalConfig(config)
                .setDataSource(dataSourceConfig)
                .setStrategy(strategyConfig)
                .setPackageInfo(
                        new PackageConfig()
                                .setParent(packageName)
                                .setController("controller")
                                .setService("service")
                                .setServiceImpl("serviceImp")
                                .setEntity("model")
                ).execute();
    }


}