MyBatis-Plus系列之代码生成器

代码生成器，也叫逆向工程，是根据数据库里的表结构，自动生成对应的实体类、映射文件和接口。

这和hibernate的自动建表恰好相反。

很早之前，写了一个代码生成器的工程，自己也一直在用，很方便，也经过大量验证，也支持很多数据库。

看到很多小伙伴在为数据库生成实体类发愁，现分享给大家，提高开发效率。

工程地址：mybatis-plus-code-generator：github.com/fengwenyi/mybatis-plus-code-generator

目录结构：

针对每个人的习惯，可以在这个类里进行配置

   
 public static final String PACKAGE_NAME_SERVICE = "repository";  
​  
   
 public static final String PACKAGE_NAME_SERVICE_IMPL = "repository.impl";  
​  
   
 public static final String PACKAGE_NAME_MODEL = "entity";  
​  
   
 public static final String PACKAGE_NAME_DAO = "mapper";  
​  
   
 public static final String PACKAGE_NAME_XML = "xml";  
​  
   
 public static final String FILE_NAME_MODEL = "%sEntity";  
​  
   
 public static final String FILE_NAME_DAO = "I%sMapper";  
​  
   
 public static final String FILE_NAME_XML = "%sMapper";  
​  
   
 public static final String FILE_NAME_SERVICE = "MP%sRepository";  
​  
   
 public static final String FILE_NAME_SERVICE_IMPL = "%sRepositoryImpl";  
​  
   
 public static final String FIELD_LOGIC_DELETe_NAME = "delete_status";  
​  
   
 public static final String AUTHOR = "Erwin Feng";  
​  
   
 public static final Boolean SWAGGER_SUPPORT = false;

DROP TABLE IF EXISTS user;  
​  
CREATE TABLE user  
(  
 id BIGINT(20) NOT NULL COMMENT '主键ID',  
 name VARCHAR(30) NULL DEFAULT NULL COMMENT '姓名',  
 age INT(11) NULL DEFAULT NULL COMMENT '年龄',  
 email VARCHAR(50) NULL DEFAULT NULL COMMENT '邮箱',  
 PRIMARY KEY (id)  
);  
​  
DELETE FROM user;  
​  
INSERT INTO user (id, name, age, email) VALUES  
(1, 'Jone', 18, 'test1@baomidou.com'),  
(2, 'Jack', 20, 'test2@baomidou.com'),  
(3, 'Tom', 28, 'test3@baomidou.com'),  
(4, 'Sandy', 21, 'test4@baomidou.com'),  
(5, 'Billie', 24, 'test5@baomidou.com');

DbType dbType = DbType.MYSQL;  
String dbUrl = "jdbc:mysql://192.168.16.128:3306/study-spring-boot-mybatis-plus";  
String username = "root";  
String password = "123456";  
String driver = "com.mysql.cj.jdbc.Driver";  
// 表前缀，生成的实体类，不含前缀  
String [] tablePrefixes = {};  
// 表名，为空，生成所有的表  
String [] tableNames = {};  
// 字段前缀  
String [] fieldPrefixes = {};  
// 基础包名  
String packageName = "com.fengwenyi.studyspringbootmybatisplus.db";  
CommonUtils.execute(dbType, dbUrl, username, password, driver, tablePrefixes, tableNames, packageName, fieldPrefixes);

@Autowired  
private MPUserRepository mpUserRepository;  
​  
@Test  
public void testSelectList() {  
 List list = mpUserRepository.list();  
 list.forEach(userEntity -> log.info(userEntity.toString()));  
}