春季靴和百里角 - 显示所有元素

发布于 2025-01-24 07:11:33 字数 1847 浏览 1 评论 0原文

您能帮我显示“ book-data” .html文件中的所有元素？

我的控制器类是

@Autowired BooksService booksService
@GetMapping("/books")
private List<Books> getAllBooks() throws IOException, InterruptedException {
    return booksService.getAllBooks();
}

，我的服务类是

@Autowired BooksRepository booksRepository;
public List<Books> getAllBooks() throws IOException, InterruptedException {
    return (List<Books>) booksRepository.findAll();
}

我的书籍存储库接口

public interface BooksRepository extends CrudRepository<Books, Integer>
{
}

，我的“ book-data” .html文件

<table class="table">
<thead class="thead-dark">
    <tr>
        <th scope="col">Book ID</th>
        <th scope="col">Book Name</th>
        <th scope="col">Book Author</th>
        <th scope="col">Book Price</th>
    </tr>
</thead>
<tbody>
    <tr>
        <td th:text="${book.bookid}"></td>
        <td th:text="${book.bookname}"></td>
        <td th:text="${book.author}"></td>
        <td th:text="${book.price}"></td>
    </tr>
</tbody>

在HTML页面中，它没有显示任何书籍数据。对于服务课，我看到了下面的另一个解决方案，但没有解决问题。

@RequestMapping("/books")
private String listBooks(Model model){
  model.addAtrribute("books", booksService.getAllBooks());
  return "books";
}

在html中：

<tbody>
    <tr th:each="book : ${books}">
          <td th:text="${book.bookid}"></td>
          <td th:text="${book.bookname}"></td>
          <td th:text="${book.author}"></td>
          <td th:text="${book.price}"></td>
    </tr>
  </tbody>

原文

Can you help me about showing all the elements in "book-data".html file?

My controller class is

@Autowired BooksService booksService
@GetMapping("/books")
private List<Books> getAllBooks() throws IOException, InterruptedException {
    return booksService.getAllBooks();
}

and my service class is

@Autowired BooksRepository booksRepository;
public List<Books> getAllBooks() throws IOException, InterruptedException {
    return (List<Books>) booksRepository.findAll();
}

my book repository interface is

public interface BooksRepository extends CrudRepository<Books, Integer>
{
}

and my "book-data".html file is

<table class="table">
<thead class="thead-dark">
    <tr>
        <th scope="col">Book ID</th>
        <th scope="col">Book Name</th>
        <th scope="col">Book Author</th>
        <th scope="col">Book Price</th>
    </tr>
</thead>
<tbody>
    <tr>
        <td th:text="${book.bookid}"></td>
        <td th:text="${book.bookname}"></td>
        <td th:text="${book.author}"></td>
        <td th:text="${book.price}"></td>
    </tr>
</tbody>

In HTML page, it doesn't show any book data. For service class, I saw another solution like below, but it didn't solve the problem.

@RequestMapping("/books")
private String listBooks(Model model){
  model.addAtrribute("books", booksService.getAllBooks());
  return "books";
}

in html:

<tbody>
    <tr th:each="book : ${books}">
          <td th:text="${book.bookid}"></td>
          <td th:text="${book.bookname}"></td>
          <td th:text="${book.author}"></td>
          <td th:text="${book.price}"></td>
    </tr>
  </tbody>

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彻夜缠绵 2025-01-31 07:11:33

I think something like this is maybe a solution :

in your controller with adding @Controller in class statement :

@Autowired
BooksService booksService

@GetMapping("/books")
private String listBooks(Model model){
  model.addAtrribute("books", booksService.getAllBooks());
  return "views/book-data";
}

your service with adding @Service in class statement :

@Autowired
BooksRepository bookRepository

public List<Books> getAllBooks(){
  return this.booksRepository.findAll();
}

your repository with adding <代码> @repository 在类语句中：
也许您可以拥有@query

@Repository
public interface BooksRepository extends CrudRepository<Books, Long>
{
    public List<Books> findAll();
}

和您的html：

<table class="table">
    <thead class="thead-dark">
        <tr>
            <th scope="col">Book ID</th>
            <th scope="col">Book Name</th>
            <th scope="col">Book Author</th>
            <th scope="col">Book Price</th>
        </tr>
    </thead>
    <tbody>
        <tr th:each="book : ${books}">
          <td th:text="${book.bookid}"></td>
          <td th:text="${book.bookname}"></td>
          <td th:text="${book.author}"></td>
          <td th:text="${book.price}"></td>
        </tr>
    </tbody>
</table>

I think something like this is maybe a solution :

in your controller with adding @Controller in class statement :

@Autowired
BooksService booksService

@GetMapping("/books")
private String listBooks(Model model){
  model.addAtrribute("books", booksService.getAllBooks());
  return "views/book-data";
}

your service with adding @Service in class statement :

@Autowired
BooksRepository bookRepository

public List<Books> getAllBooks(){
  return this.booksRepository.findAll();
}

your repository with adding @Repository in class statement :
maybe you could had @Query

@Repository
public interface BooksRepository extends CrudRepository<Books, Long>
{
    public List<Books> findAll();
}

And your html :

<table class="table">
    <thead class="thead-dark">
        <tr>
            <th scope="col">Book ID</th>
            <th scope="col">Book Name</th>
            <th scope="col">Book Author</th>
            <th scope="col">Book Price</th>
        </tr>
    </thead>
    <tbody>
        <tr th:each="book : ${books}">
          <td th:text="${book.bookid}"></td>
          <td th:text="${book.bookname}"></td>
          <td th:text="${book.author}"></td>
          <td th:text="${book.price}"></td>
        </tr>
    </tbody>
</table>

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那支青花 2025-01-31 07:11:33

首先，我创建了另一个显示“所有书籍”的HTML文件。此文件命名为allbooks.html。然后，下面的服务方法解决了问题，以获取您的信息。

<html lang="en" xmlns:th="http://www.thymeleaf.org">
<html xmlns:th="https://thymeleaf.org">
<style>
    table, th, td {
        border: 1px solid black;
        text-align: center;
    }
</style>
<table class="table">
<thead class="thead-dark">
    <tr>
        <th scope="col">Book ID</th>
        <th scope="col">Book Name</th>
        <th scope="col">Book Author</th>
        <th scope="col">Book Price</th>
    </tr>
</thead>
<tbody>
    <tr  th:each="book : ${books}">
        <td th:text="${book.bookid}"></td>
        <td th:text="${book.bookname}"></td>
        <td th:text="${book.author}"></td>
        <td th:text="${book.price}"></td>
    </tr>
</tbody>

@GetMapping("/books")
private ModelAndView getAllBooks() throws IOException, InterruptedException {
    ModelAndView mav = new ModelAndView();
    mav.setViewName("allBooks");
    mav.addObject("books", booksService.getAllBooks());
    return mav;
}

First, I created another html file that shows "all books". This file is named allBooks.html. Then, the service method below solved the problem, for your information.

<html lang="en" xmlns:th="http://www.thymeleaf.org">
<html xmlns:th="https://thymeleaf.org">
<style>
    table, th, td {
        border: 1px solid black;
        text-align: center;
    }
</style>
<table class="table">
<thead class="thead-dark">
    <tr>
        <th scope="col">Book ID</th>
        <th scope="col">Book Name</th>
        <th scope="col">Book Author</th>
        <th scope="col">Book Price</th>
    </tr>
</thead>
<tbody>
    <tr  th:each="book : ${books}">
        <td th:text="${book.bookid}"></td>
        <td th:text="${book.bookname}"></td>
        <td th:text="${book.author}"></td>
        <td th:text="${book.price}"></td>
    </tr>
</tbody>

@GetMapping("/books")
private ModelAndView getAllBooks() throws IOException, InterruptedException {
    ModelAndView mav = new ModelAndView();
    mav.setViewName("allBooks");
    mav.addObject("books", booksService.getAllBooks());
    return mav;
}

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