HTML page did not upload correctly because of the errors-CodePudding

Page "bookUpdate.html" does not work correctly because of the errors. I can open this page from page "bookList.html" via click to button "Edit". On all other pages bootstrap work correctly. I try to add to code something like "link rel="stylesheet" type="text/css" th:href="@{/webjars/bootstrap/css/bootstrap.min.css}" " but it did not work.

bookUpdate.html

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org"
xmlns:layout="http://www.ultraq.net.nz/thymeleaf/layout"
xmlns:sec="https://www.thymeleaf.org/thymeleaf-extras-springsecurity5"
layout:decorate="~{fragments/main_layout}">
<body>
<div layout:fragment="content" >
    <form th:action="@{/bookUpdate/__${book.id}__}" th:object="${book.id}"
        method="post">
        <div >
            <label for="topic" >Topic</label> <input
                type="text"  th:field="${book.topic}"
                id="topic" />
        </div>

        <div >
            <label for="description" >Description</label>
            <textarea  th:field="${book.description}"
                id="description" style="height: 95px"></textarea>
        </div>

        <div >
            <label for="link" >Link</label> <input
                type="text"  th:field="${book.link}" id="link" />
        </div>

        <input type="submit" value="Submit"  />
    </form>
</div>
</body>
</html>

CodePudding user response：

SUGGESTION: Try changing "href" to "src":