Spring Boot with Thymeleaf post list

Question

I want to post a list of strings to my controller. But it always only take the first selected value.

my thymeleaf html form:

<form action="/add" method="post">
    <div class="form-group">
        <label for="roleId">ID</label> <input type="text" class="form-control" id="roleId" name="id" required="required" />
    </div>
    <div class="form-group">
        <label for="rolePrivileges">Privileges</label>
        <select class="form-control" id="rolePrivileges" name="privileges" multiple="multiple" size="10" required="required">
            <option th:each="type : ${privilegesList}" th:value="${type}" th:text="${type}">Privilege</option>
        </select>
    </div>
    <button type="submit" class="btn btn-default">Create</button>
</form>

my controller:

@RequestMapping(value = "/add", method = RequestMethod.POST)
public String addSomething(Model model, @ModelAttribute("id") String id,
        @ModelAttribute("privileges") List<String> privileges) {
    // add something with a service
    return "redirect:/roles";
}

Thomas Pawlitzki beat me by a few minutes, you should validate his answer. — Marc Tarin, Feb 20 '17 at 10:20

score 5 · Accepted Answer · edited May 23 '17 at 12:31

5

I think you have to Annotate the privilges with

@RequestParam("privileges")

It is not a ModelAttribute but you receive it from the request

Edit: two SO threads to better understand the difference between @RequestParam and @ModelAttribute.

edited May 23 '17 at 12:31

Community

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answered Feb 20 '17 at 10:03

thopaw

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Spring Boot with Thymeleaf post list

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