ページの作成

ページの作成

親となるページを選択してください。

ページは必ず何かしらの親ページに紐づきます。
親ページに紐づくページを子ページといいます。
例: 親=スポーツ, 子1=サッカー, 子2=野球

子ページを親ページとして更に子ページを作成することも可能です。
例: 親=サッカー, 子=サッカーのルール

親ページはいつでも変更することが可能なのでとりあえず作ってみましょう!
テンプレートを更新

5. 【Spring】@Columnアノテーションとは

本稿はSpringFrameworkの@Columnについて説明します。

@Columnとは

Entityクラス内で定義したテーブルのカラム名に相当するメンバ変数に付与するのが@Columnとなります。

@Columnではデータ型や長さを指定することが出来ます。

以下、@Columnの実装例です。

package com.example.demo.entity;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name="user")
public class User {
    
    @Id

    @GeneratedValue(strategy = GenerationType.AUTO)
   
@Column
    private long id;
    
   
@Column(name="name", length=50, nullable = false)
    private String name;

    public long getId() {
        return id;
    }

    public void setId(long id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

 

子ページ
子ページはありません
同階層のページ
  1. @After
  2. @Autowired
  3. @Bean
  4. @Before
  5. @Column
  6. @Component
  7. @Configuration
  8. @Controller
  9. @Data
  10. @Entity
  11. @GeneratedValue
  12. @Id
  13. @Modifying
  14. @PathVariable
  15. @PropertySource
  16. @Repository
  17. @RequestBody
  18. @RequestMapping
  19. @ResponseBody
  20. @RestController
  21. @Service
  22. @SpringBootApplication
  23. @Table
  24. @Transactional
  25. @Value

最近の質問

コメント一覧

    No.436 | guest | 2023-02-04 03:18:29

    <a href="https://striplife.ru/">striplife.ru</a>

    No.435 | guest | 2023-02-02 20:36:01

    striplife.ru

    No.434 | guest | 2023-01-22 23:21:02

    coursework writing uk [url="https://brainycoursework.com"]custom coursework writing[/url] buy coursework online

    No.433 | guest | 2022-12-26 09:12:33

    <a href="https://www.hydroxychloroquinex.com/#">https://www.hydroxychloroquinex.com/#</a> hydroxychloroquine mechanism of action

    No.432 | guest | 2022-12-25 15:43:18

    ing chloroquine online <a href="http://hydroxychloroquinex.com/">http://hydroxychloroquinex.com/</a>

    No.431 | guest | 2022-12-25 14:40:45

    chloroquine tablet http://www.hydroxychloroquinex.com/#

    No.430 | guest | 2022-12-12 15:09:54

    <a href="http://www.candipharm.com/# ">http://www.candipharm.com/#</a>

    No.429 | guest | 2022-12-12 03:00:09

    <a href="https://candipharm.com/ ">candipharm</a>

    No.428 | guest | 2022-12-11 20:43:33

    <a href="https://www.candipharm.com/ ">candipharm</a>

    No.427 | guest | 2022-11-29 12:56:24

    custom application essay <a href=https://cheapessaywritingservice1.com>custom admission essay</a> essay writing services recommendations

    No.426 | guest | 2022-11-28 03:58:41

    i need help to write an essay <a href=https://buytopessays.com>help with an essay</a> essay on the help

    No.425 | guest | 2022-11-26 18:21:17

    help with essays assignments <a href=https://buy-eessay-online.com>custom essay station</a> can i pay someone to write my essay

    No.424 | guest | 2022-11-25 08:43:20

    admission essay editing services <a href=https://buyacademicessay.com>college scholarship essay help</a> admission essay service

    No.423 | guest | 2022-11-24 01:40:35

    best college essay help <a href=https://bestsessays.org>buy cheap essay</a> custom essay cheap

    No.422 | guest | 2022-11-22 16:19:55

    best writing essay <a href=https://bestessaysden.com>cambridge essay service</a> college essay review services

    No.421 | guest | 2022-11-21 08:39:29

    help writing my college essay <a href=https://bestessayreviews.net>narrative essay help</a> best essay service

    No.420 | guest | 2022-11-20 01:43:25

    online essay writing service review <a href=https://besteasyessays.org>custom essays toronto</a> essay writing service online

    No.419 | guest | 2022-11-15 23:50:46

    buy custom essays <a href=https://au-bestessays.org>using essay writing service</a> help writing essays

    No.418 | guest | 2022-10-20 07:09:50

    Very nice post. I just stumbled upon your blog and wished to mention that I've really loved surfing around your weblog posts. In any case I'll be subscribing on your rsss feed and I am hoping you write again very soon! 사설토토 먹튀

    No.413 | guest | 2022-10-05 11:32:10

    Web Design & Website Design Ecommerce Website Cost Website Design Questionnaire Web Developer And Web Designer, Responsive Web Design Services, Design Your Website, Web Design, How To Find A Website Designer, Best Ecommerce Design, Website Development, Web Design Hourly Rate, Web Developer And Web Designer, Graphic Websites

    No.400 | guest | 2022-09-24 13:16:15

    Car Shipping Toronto is a company that pursues a ssingle goal-customer satisfaction. Our car transporter has a capacity foor 10 cars(SUV). Our company has insurance coverage of up to $1000.000! We specialize inn transporting cars and motorcycles throughout Canada aand thee United States. Due to the many trucks in our company, we provide thhe most favourtable prihes for moving your caar or motorcycle. Our team started its wirk in 2001. Choosing our Vehicle movers Toronto, you get many years off experience, the most attractive pprices and the highest quality of service!shipping a car in canada

    No.397 | guest | 2022-09-23 00:27:15

    Mortgage Broker Difference Between Mortgage Broker And Loan Officer Rocket Mortgage Broker Find A Mortgage Broker, Top Commercial Mortgage Brokers, Cheap Mortgage Broker, Mortgage Banker vs Broker, Fha Mortgage Broker, Best Mortgage Advice, Accredited Mortgage Professional, Using A Mortgage Broker, Mortgage Broker For Commercial Property, Do I Need A Mortgage Broker

    No.396 | guest | 2022-09-22 21:51:50

    Car Shipping Toronto is a company that pursues a single goal-customer satisfaction. Our car transporter has a capacity for 10 cars(SUV). Our company has insurance coverage off up to $1000.000! We specialize in transporting cars and motorcycles throughout Canada and the United States. Duue to the many trucks in our company, we provide the most favouraable prices for moving your car or motorcycle. Our tram started its work iin 2001. Choosing our Vehicle movers Toronto, you gget many years of experience, the most attractive prices and the highest qquality of service!car shipping from canada

    No.308 | guest | 2022-07-18 00:50:08

    Howdy! This is my first visit to your blog! We are a group of volunteers and starting a new project in a community in the same niche. Your blog provided us useful information to work on. You havge done a outstanding job! 먹튀다자바

    No.18 | guest | 2020-06-21 12:00:13

    Hey there, I came across your website and thought you may be interested in our blog production services. I work with a team of skilled English writers and over the last 9 years we have written 1000s of content pieces in almost every niche. We can write for you quality and affordable content writing services to help you build quality backlinks. In addition, we can produce 5k words every day. All our write ups are unique, meticulously written and pass copyscape premium plagiarism tests. Please let me know if I should send some past samples. Kind regards, Project Manager Skype ID: patmos041