https://github.com/0xcaffebabe/orm

一个简单ORM框架实现
https://github.com/0xcaffebabe/orm

Last synced: about 1 month ago
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一个简单ORM框架实现

• Host: GitHub
• URL: https://github.com/0xcaffebabe/orm
• Owner: 0xcaffebabe
• Created: 2019-02-01T05:20:53.000Z (almost 6 years ago)
• Default Branch: master
• Last Pushed: 2022-01-06T10:44:55.000Z (almost 3 years ago)
• Last Synced: 2024-10-16T00:43:49.230Z (3 months ago)
• Language: Java
• Size: 7.81 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
# orm

2019-2-1

根据个人对ORM框架理解的一个简单实现

#

2019-2-6

###第一个应用:

定义接口:

```java

public interface EntityRepository {

    @Select(value = "SELECT * FROM entity",entity = Entity.class)

    List selectAll();

    @Update(value = "UPDATE entity SET name = 'java' WHERE name = ?")

    int updateByName(String name);

    @Delete("DELETE FROM entity WHERE name = ?")

    int deleteByName(String name);

    @Insert(value = "INSERT INTO entity(name) VALUES(?)",entity = Entity.class)

    int insert(String name);

}

```

使用:

```java

public class MyRepositoryFactoryTest {

    @Test

    public void getRepositoryAgent() {

        // 设置数据源

        DruidDataSource dataSource = new DruidDataSource();

        dataSource.setUsername("root");

        dataSource.setPassword("123456");

        dataSource.setUrl("jdbc:mysql:///orm?serverTimezone=Hongkong");

        // 创建仓库工厂

        MyRepositoryFactory factory = new MyRepositoryFactory(dataSource);

        // 通过工厂获取仓库代理类

        EntityRepository repository = factory.getRepositoryAgent(EntityRepository.class);

        

        assertEquals(1,repository.insert("kkk"));

        assertEquals(2,repository.selectAll().size());

    }

}

```