thymeleaf th:value 多个值拼接 使用+号(不适用于th:field)

字符串拼接
拼接字符串通过 + 或者 | 进行拼接

th:text="$a+${b}">
th:text="|${a} ${b}|">

<select name="docId" id="docId" lay-search>
                        <option th:each="doctor:${doctor}"
                                th:text="${doctor.docName} + '('+${doctor.hospital} +')'" th:value="${doctor.id}"></option>
                    </select>

thymeleaf th:value 可以使用+号拼接两个字符串

    <label th:each="brand:${brands}" class="check-box">
    <input id="brands" name="brands" type="checkbox" th:value="${brand.brandId}+','+${brand.brandShortName}" th:text="${brand.brandShortName}">
    </label>