[스프링 부트 기초] 스프링 메모장 만들기

1. API

 

2. JPA 쿼리 참고

https://docs.spring.io/spring-data/jpa/docs/current/reference/html/#jpa.query-methods

Spring Data JPA - Reference Documentation

5.1.3 Query Methods

Query Creation

Query Creation

Generally, the query creation mechanism for JPA works as described in “Query Methods”. The following example shows what a JPA query method translates into:

Example 55. Query creation from method names

public interface UserRepository extends Repository<User, Long> {

  List<User> findByEmailAddressAndLastname(String emailAddress, String lastname);
}

We create a query using the JPA criteria API from this, but, essentially, this translates into the following query: select u from User u where u.emailAddress = ?1 and u.lastname = ?2. Spring Data JPA does a property check and traverses nested properties, as described in “Property Expressions”.

The following table describes the keywords supported for JPA and what a method containing that keyword translates to:

Table 3. Supported keywords inside method namesKeywordSampleJPQL snippet

Distinct	findDistinctByLastnameAndFirstname	select distinct …​ where x.lastname = ?1 and x.firstname = ?2
And	findByLastnameAndFirstname	… where x.lastname = ?1 and x.firstname = ?2
Or	findByLastnameOrFirstname	… where x.lastname = ?1 or x.firstname = ?2
Is, Equals	findByFirstname,findByFirstnameIs,findByFirstnameEquals	… where x.firstname = ?1
Between	findByStartDateBetween	… where x.startDate between ?1 and ?2
LessThan	findByAgeLessThan	… where x.age < ?1
LessThanEqual	findByAgeLessThanEqual	… where x.age <= ?1
GreaterThan	findByAgeGreaterThan	… where x.age > ?1
GreaterThanEqual	findByAgeGreaterThanEqual	… where x.age >= ?1
After	findByStartDateAfter	… where x.startDate > ?1
Before	findByStartDateBefore	… where x.startDate < ?1
IsNull, Null	findByAge(Is)Null	… where x.age is null
IsNotNull, NotNull	findByAge(Is)NotNull	… where x.age not null
Like	findByFirstnameLike	… where x.firstname like ?1
NotLike	findByFirstnameNotLike	… where x.firstname not like ?1
StartingWith	findByFirstnameStartingWith	… where x.firstname like ?1 (parameter bound with appended %)
EndingWith	findByFirstnameEndingWith	… where x.firstname like ?1 (parameter bound with prepended %)
Containing	findByFirstnameContaining	… where x.firstname like ?1 (parameter bound wrapped in %)
OrderBy	findByAgeOrderByLastnameDesc	… where x.age = ?1 order by x.lastname desc
Not	findByLastnameNot	… where x.lastname <> ?1
In	findByAgeIn(Collection<Age> ages)	… where x.age in ?1
NotIn	findByAgeNotIn(Collection<Age> ages)	… where x.age not in ?1
True	findByActiveTrue()	… where x.active = true
False	findByActiveFalse()	… where x.active = false
IgnoreCase	findByFirstnameIgnoreCase	… where UPPER(x.firstname) = UPPER(?1)

 

 

 

3. HTML 기초

https://www.codecademy.com/learn/learn-html

Learn HTML | Codecademy

 

https://opentutorials.org/course/2039

HTML 수업 - 생활코딩

 

4. JQuery

CDN : <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
보이기 : $('#post-box').show();
숨기기 : $('#post-box').hide();
값 가져오기 : $('#post-url').val();
값 넣기 : $('#post-url').val('new text');
HTML 요소 비우기 : $('#cards-box').empty();
HTML 요소 추가하기 : $('#cards-box').append(temp_html);

 

 

5. 숙제 

서비스가 불러오는 메모 목록의 시간을 조회 시간으로부터 24시간 이내로 바꿔보자

힌트1) spring jpa localtime between 구글링

힌트2) 지금은 LocalDateTime.now(), 어제는 LocalDateTime.now().minusDays(1)