Question

我有一个基本的SpringBoot 2.0.5.RELEASE应用程序。使用Spring Initializer，JPA，嵌入式Tomcat，Thymeleaf模板引擎并将其打包为可执行JAR文件。我有这个模板，我想根据条件禁用选择对象

<form id="menuFormId" class="form-style-9" action="#" th:action="@{/menu/save}" th:object="${menu}" method="post">
    <ul>
        <li th:each="e : ${#fields.detailedErrors()}" th:class="${e.global}? globalerr : fielderr">
            <span th:text="${e.global}? '*' : ${e.fieldName}" ><b>The field name</b></span> : <span th:text="${e.message}" class="red">
                <font color="red">The error message</font>
            </span>
        </li>
    </ul>
    <ul class="tab_form">
        <li>        
            <select id="selectMenuId" th:field="*{resto}" th:classappend="${menu.id == null} ?  disabled='disabled'">
                <option value="0">PLEASE SELECT A MENU</option>
            </select>
...

但是我得到了这个错误：

Could not parse as expression: "${menu.id == null} ?  disabled='disabled'"

Answer 1

嗯，有两个问题：

1。）禁用是属性而不是类。因此，请使用以下代码段：

Traceback (most recent call last):
File "test_td.py", line 103, in <module>
     upload_file_to_td_folder(folder_id, file, FILE_MIME)
File "test_td.py", line 46, in upload_file_to_td_folder
     supportsTeamDrives=True, fields='id').execute().get('id')
File "/home/bo/anaconda3/lib/python3.6/site-packages/oauth2client/_helpers.py", line 133, in positional_wrapper
     return wrapped(*args, **kwargs)
File "/home/bo/anaconda3/lib/python3.6/site-packages/googleapiclient/http.py", line 840, in execute
     raise HttpError(resp, content, uri=self.uri) googleapiclient.errors.HttpError:
     <HttpError 400 when requesting https://www.googleapis.com/upload/drive/v3/files?supportsTeamDrives=true&fields=id&alt=json&uploadType=multipart
       returned "Bad Request">

2。）您不能定义一个类disable ='disabled'。

第二个问题并不重要。不需要这样的类定义。

Thymeleaf：禁用组件

1 个答案: