问使用Javascript预填充字段在Spring MVC表单提交时返回NULL

EN

    var fullDate = new Date()
    var twoDigitMonth = ((fullDate.getMonth().length+1) === 1)? (fullDate.getMonth()+1) :(fullDate.getMonth()+1);
    var currentDate = fullDate.getDate() + "/" + twoDigitMonth + "/" + fullDate.getFullYear();
    $("#declarationSignature").prop("disabled",true);
    $("#declartionDate").prop("disabled",true);
    $("#declarationSignature").val($("#title").val() + " " + $("#firstName").val()+ " " + $("#lastName").val());
    $("#declartionDate").val(currentDate);

var selectedLocations = JSON.parse(storedValue);
console.log("parsing selected locations")
console.log(selectedLocations )
$('#storesAppliedFor').val(selectedLocations );