jacob-dan

GitHub: https://github.com/PaulusChang/jacob-dan

Gitee: https://gitee.com/paulusgit/jacob-dan

simple springboot+jpa

要求实体类继承jacob.dan.base.beanBaseEntity，根据《阿里巴巴Java开发手册》，

三、MySQL规约【强制】表必备三字段：id, gmt_create, gmt_modified。说明：其中id必为主键，类型为unsigned bigint、单表时自增、步长为1。gmt_create, gmt_modified的类型均为date_time类型。

BaseEntity中id为String类型，由SnowflakeIdFactory产生，除了上述字段，还增加了is_deleted字段作为删除标识

创建实体类，并调用方法生成相应的 service/repository 代码，以 jacob.dan.user.entity.UserRole 为例

在 jacob.dan.user.entity 包下添加 UserRole.java

 package jacob.dan.user.entity;

 import javax.persistence.Entity;
 import javax.persistence.ManyToOne;
 import javax.persistence.Table;

 import jacob.dan.base.bean.BaseEntity;

 [@Entity](https://my.oschina.net/u/1260961)
 @Table(name = "dan_user_row")
 public class UserRole extends BaseEntity {

 	@ManyToOne
 	private User user;
 	@ManyToOne
 	private Role role;

 	public User getUser() {
 		return user;
 	}
 	public void setUser(User user) {
 		this.user = user;
 	}
 	public Role getRole() {
 		return role;
 	}
 	public void setRole(Role role) {
 		this.role = role;
 	}

 }

代码生成工具 jacob.dan.generator.code.Generator.main(String[]) 可以生成指定包、类、目标类型的代码文件，参见对象中的方法

 generate(Category, Class<?>)
 generate(CategoryList, Class<?>)
 generate(Category, Package)
 generate(CategoryList, Package)

代码地址：https://github.com/PaulusChang/jacob-dan/blob/master/src/test/java/jacob/dan/test/GenerateDataTest.java

测试封装好的查询方法

测试示例中注入的 UserService 是自动生成的，继承了 BaseService。完事测试代码参见 https://github.com/PaulusChang/jacob-dan/blob/master/src/test/java/jacob/dan/test/QueryTest.java，简单的调用示例如下

 /**
  * 测试排序
  * [@author](https://my.oschina.net/arthor) ChangJian
  * @date 2019年2月26日
  */
 @Test
 public void testSort() {
 	User user = new User();
 	//birthday desc
 	user.setOrderBean(new OrderBean(Direction.DESC, "birthday"));
 	List<User> users = userService.findAll(user);
 	assertThat(users.size(), Matchers.greaterThan(0));
 	for (int i = 1; i < users.size(); i++) {
 		assertThat(users.get(i - 1).getBirthday(), Matchers.greaterThanOrEqualTo(users.get(i).getBirthday()));
 	}
 }

 /**
  * 测试普通的约束
  * @author ChangJian
  * @date 2019年2月25日
  */
 @Test
 public void testNormal() {
 	User user = new User();
 	int age = 22;
 	user.setAge(age);
 	List<User> users = userService.findAll(user);
 	assertThat(users.size(), Matchers.greaterThan(0));
 	for (User user2 : users) {
 		assertThat(user2.getAge(), equalTo(age));
 	}
 }

 @Test
 public void testArray() {
 	User user = new User();
 	Integer[] ageArray = new Integer[] {22, 23, 25};
 	List<Integer> ageList = Arrays.asList(ageArray);

 	user.setAgeArray(ageArray);

 	List<User> users = userService.findAll(user);
 	assertThat(users.size(), Matchers.greaterThan(0));
 	for (User user2 : users) {
 		Assert.assertTrue(ageList.contains(user2.getAge()));
 	}
 }

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