@Controller返回空页“ok”

Question

我正在尝试使用模态窗口中的js保存文件。我把它保存好了然后我被重定向到只写有“ok”的页面。 我的意思是：

我的js看起来像：

var name = $('#upload-track-name').val();
var description = $('#upload-track-description').val();
var file = document.getElementById('input-file').files[0];

var isValidate = true;

if (name.trim() == '') {
    $('#error-upload-track-name').show();
    isValidate = false;
}
if (!file) {
    $('#error-upload-track-file').show();
    isValidate = false;
}
if (!isValidate) {
    return;
}

$.ajax({
    url: '/tracks/upload',//I see this empty page on this url
    type: 'post',
    data: {
        file: file,
        name: name,
        description: description
    },
    success: function (data){

        if (data == 1) {
            $('#error-upload-track-file').hide();
            $('#error-upload-track-name').show();
        } else if (data == 2) {
            $('#error-upload-track-name').hide();
            $('#error-upload-track-file').show();
        } else {
            $('#modal-upload-success').show();
        }
    }) 

这是我的@Controller：

@ResponseBody
@RequestMapping(value = TracksGeopointsRoutes.UPLOAD, method = RequestMethod.POST)
public String uploadTrack(@RequestParam MultipartFile file,
              @RequestParam String name,
              @RequestParam(required = false, defaultValue = "") String description,
                  Model model){

    TracksGeopointsDoc tracksGeopointsDoc = new TracksGeopointsDoc();

    if (name.equals("")) {
        return "1";
    }
    if (file.getSize() == 0 || file == null){
        return "2";
    }
    ObjectId fileId = fileService.saveWithDelete(file, null);
    tracksGeopointsDoc.setFile(fileId);
    tracksGeopointsDoc.setUploadDate(new Date());
    tracksGeopointsDoc.setName(name);
    tracksGeopointsDoc.setDescription(description);
    tracksGeopointsService.saveTrack(tracksGeopointsDoc);
    try {
        File convFile = tracksGeopointsService.convert(file);

        String s = convFile.getAbsolutePath();

        mySaxParser.setUpMySaxParser(convFile.getAbsolutePath(), tracksGeopointsDoc.getId(), convFile.getName());
    } catch (IOException e) {
        e.printStackTrace();
    }

    return "ok";

}

我怀疑这是因为@ResponseBody注释。如果我是对的，任何人都可以告诉我如何避免这种情况。