错误请求，HttpMessageNotReadableException无法读取文档

Question

我使用spring boot，spring数据，twitter bootstrap，并使用rest。 我试着发表一份表格

  <form id="contactInformationForm" class="form-horizontal" role="form" data-fv-framework="bootstrap" data-fv-icon-valid="glyphicon glyphicon-ok" data-fv-icon-invalid="glyphicon glyphicon-remove" data-fv-icon-validating="glyphicon glyphicon-refresh">

        <div class="form-group">
            <label for="lodgerFirstName" class="col-sm-3 control-label">Prénom</label>
            <div class="col-sm-9">
                <input type="text" class="form-control" id="lodgerFirstName" name="firstName" placeholder="Entrer le prénom">
            </div>
        </div>

        <div class="form-group">
            <label for="lodgerLastName" class="col-sm-3 control-label">Nom</label>
            <div class="col-sm-9">

                <input type="text" class="form-control" id="lodgerLastName" name="lastName" placeholder="Entrer le nom">
            </div>
        </div>
        ...

    $('#lodgerSave').on('click', function (e) {

        jQuery.ajax({
            type: "post",
            url: "http://localhost:8080/lodgers",
            contentType: "application/json",
            data: $('#contactInformationForm').serialize(),
            dataType: 'json',
            success: function (data, status, jqXHR) {

            },
            error: function (jqXHR, status) {

            }
        });
        e.preventDefault();
    });

在服务器端

@RequestMapping(value = "/lodgers", method = RequestMethod.POST)
public LodgerInformation createLodger(@RequestBody @Valid final LodgerInformation lodgerDto) {
    return lodgerService.save(lodgerDto);
}

我的dto

public class LodgerInformation {

    private long lodgerId;

    private String firstName;

    private String lastName;

    private Date birthdate;

    private long statusId;

    private Date startDate;

    private Date releaseDate;

    private Phone contactPersonelMobile;

    private List<IdentityCardDto> identityCardList;

当我发布时，我收到此错误消息

"{"timestamp":1436293673415,"status":400,"error":"Bad Request","exception":"org.springframework.http.converter.HttpMessageNotReadableException","message":"Could not read document: Unrecognized token 'firstName': was expecting 'null', 'true', 'false' or NaN\n at [Source: java.io.PushbackInputStream@424485fa; line: 1, column: 11]; nested exception is com.fasterxml.jackson.core.JsonParseException: Unrecognized token 'firstName': was expecting 'null', 'true', 'false' or NaN\n at [Source: java.io.PushbackInputStream@424485fa; line: 1, column: 11]","path":"/lodgers"}"

firstName字段存在于web部分和dto，任何想法？