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I'm having a few issues with getting a date from a controller because I don't understand what's the right format for it to work.

Controller:

@RequestMapping(value = "/findFlights", method = RequestMethod.POST)
    public String findFlights(@RequestParam("from") String from, @RequestParam("to") String to,
            @RequestParam("departureDate") @DateTimeFormat(pattern = "YYYY-MM-DD") LocalDate departureDate, Model model) {}

Form:

<form th:action="@{/findFlights}" method="POST">
        From:<input type="text" name="from" required/>
        To:<input type="text" name="to" required/>
        Departure Date:<input type="date" name="departureDate"  required />
        <input type="submit" value="Search"/>
</form>

When I submit the form it always gives me an error no matter what the format of the date is :( Here is the error:

Failed to convert value of type 'java.lang.String' to required type 'java.time.LocalDate'; nested exception is org.springframework.core.convert.ConversionFailedException: Failed to convert from type [java.lang.String] to type [@org.springframework.web.bind.annotation.RequestParam @org.springframework.format.annotation.DateTimeFormat java.time.LocalDate] for value '2018-11-05'; nested exception is java.lang.IllegalArgumentException: Parse attempt failed for value [2018-11-05]

If I specify the @DateTimeFormat annotation I thought that the conversion would be done automatically.

Karol Dowbecki
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Truica Sorin
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  • Related (but not the same): [“EEE MMM dd HH:mm:ss ZZZ yyyy” date format to java.sql.Date](https://stackoverflow.com/questions/43933597/eee-mmm-dd-hhmmss-zzz-yyyy-date-format-to-java-sql-date) – Ole V.V. Nov 07 '18 at 11:39

1 Answers1

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In YYYY-MM-DD pattern Y is a week year and D is day in a year as per SimpleDateFormat javadoc. For standard dates the pattern should be yyyy-MM-dd:

@DateTimeFormat(pattern = "yyyy-MM-dd")

or if you want to use DateTimeFormat.ISO enum:

@DateTimeFormat(iso = DateTimeFormat.ISO.DATE)
Karol Dowbecki
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