Thymeleaf + Spring MVC - selected date field on HTML5 is null on controller

Question

The following input field for a date object works, apparently, nicely. But when it reaches the controller, the value for executionDate is null.

<form role="form" action="#" th:object="${pojo}" th:action="@{/scheduler/create}" method="post">
<div class="col-lg-5 col-sm-5 col-xs-10" >
    <div class="well with-header">
        <div class="header">
            <label th:for="datepicker0">Execution Date: </label>
        </div>
        <div class="form-group input-group">
            <input id="datepicker0" type="text" name="executionDate" th:field="*{executionDate}" class="form-control"></input>
            <span class="input-group-addon"><i class="fa fa-calendar"></i></span>                               
        </div>
    </div>
</div>
// rest of the page
</form>

Relevant part of controller is:

@RequestMapping(value = "/scheduler/create", method = RequestMethod.POST)
public String createSchedulerPost(@Valid  @ModelAttribute("pojo") SchedulerPojo pojo, BindingResult result, ModelMap model) {

    System.out.println(pojo.getDescription());
    System.out.println(pojo.isRecurrent());
    System.out.println(pojo.getExecutionDate());
    System.out.println(pojo.getStartDate());
    System.out.println(pojo.getTerminationDate());
    System.out.println(pojo.getFailStrategy());
    (...) // I'm just verifying whether the SchedulerPojo pojo object has values for now...
}

The SchedulerPojo DTO is:

public class SchedulerPojo {

    private String id;

    private String description;

    private Date executionDate;

    private boolean recurrent;

    private Date startDate; 

    private Date terminationDate;

    private SchedulerFailStrategy failStrategy;

    // other attributes, getters and setters
}

Other, fields as the description String and recurrent boolean checkbox inputs return the given value on the HTML.

What am I missing here?

Can you please paste your controller code? Of course in your html you use th:object in the same <form>? And if you create datepicker object with inline js you escape code like in this example? — Iwo Kucharski
– Iwo Kucharski, Commented Apr 19, 2016 at 20:11
Yes, the th:object="${pojo}" reference is atop the <form>. Editing the question now. — gtludwig
– gtludwig, Commented Apr 19, 2016 at 20:14
Check if any value is sent to your controller (using for example firebug). — Iwo Kucharski
– Iwo Kucharski, Commented Apr 19, 2016 at 20:54
Some values, namely String description and the booleans, are printed out correctly by the controller... — gtludwig
– gtludwig, Commented Apr 19, 2016 at 20:58
Yes, but maybe there's a value sent to controller, but then java.util.Date constructor cannot handle this value? For now I only guess that problem is not in controller, but 1) the field is always empty so form sends null 2) there's a js problem with datepicker lib you use 3) some bizzare value for this field is sent to controller — Iwo Kucharski
– Iwo Kucharski, Commented Apr 19, 2016 at 21:12

sanluck · Accepted Answer · 2016-04-20 01:31:07Z

1

According to Thymeleaf+Spring tutorial th:field generates code the same as you set id and name tags:

<input type="text" th:field="*{datePlanted}" />

Equivalent code :

<input type="text" id="datePlanted" name="datePlanted" th:value="*{datePlanted}" />

Maybe you need to remove id=datepicker0 to executionDate and bind the class on datepicker?

<input class="date" type="text" th:field="*{executionDate}" class="form-control"></input>
...
<script>
    $(document).ready(function () {
        $('.date').datepicker({dateFormat: 'dd.mm.yy'});
    });
</script>

answered Apr 20, 2016 at 1:31

sanluck

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