Question

我有一个简单的表格来管理我店里的制造商。发布表单后，ajax调用将带有更新数据的json返回到表单。问题是，返回的字符串无效。看起来它是双重逃脱的。整个店铺的工作方式奇怪，没有任何问题。我也使用jquery 1.6作为javascript框架。

模型包含3个字段：名称字符，描述文字和制造商标识图像字段。

功能：

def update_data(request, manufacturer_id):
    """Updates data of manufacturer with given manufacturer id.
    """
    manufacturer = Manufacturer.objects.get(pk=manufacturer_id)
    form = ManufacturerDataForm(request.FILES, request.POST, instance=manufacturer)

    if form.is_valid():
        form.save()

    msg = _(u"Manufacturer data has been saved.")

    html = [
        ["#data", manufacturer_data_inline(request, manufacturer_id, form)],
        ["#selectable-factories-inline", selectable_manufacturers_inline(request, manufacturer_id)],
    ]

    result = simplejson.dumps({
        "html": html
    }, cls=LazyEncoder)
    return HttpResponse(result)

控制台中的错误：无效JSON错误：

uncaught exception: Invalid JSON: {"html": [["#data", "\n<h2>Dane</h2>\n<div class="\"manufacturer-image\"">\n \n</div>\n<form action="\"/manage/update-manufacturer-data/1\"" method="\"post\"">\n \n <div class="\"field\"">\n <div class="\"label\"">\n <label for="\"id_name\"">Nazwa</label>:\n </div>\n \n \n <div class="\"error\"">\n <input id="\"id_name\"" name="\"name\"" maxlength="\"50\"" type="\"text\"">\n <ul class="\"errorlist\""><li>Pole wymagane</li></ul>\n </div>\n \n </div>\n\n <div class="\"field\"">\n <div class="\"label\"">\n <label for="\"id_image\"">Zdjecie</label>:\n </div>\n \n \n <div>\n <input name="\"image\"" id="\"id_image\"" type="\"file\"">\n </div>\n \n </div>\n\n <div class="\"field\"">\n <div class="\"label\"">\n <label for="\"id_description\"">Opis</label>:\n </div>\n \n \n <div>\n <textarea id="\"id_description\"" rows="\"10\"" cols="\"40\"" name="\"description\""></textarea>\n </div>\n \n </div>\n \n <div class="\"buttons\"">\n <input class="\"ajax-save-button" button\"="" type="\"submit\"">\n </div>\n</form>"], ["#selectable-factories-inline", "\n <div>\n <a class="\"selectable" selected\"\n="" href="%5C%22/manage/manufacturer/1%5C%22">\n L1\n </a>\n </div>\n\n <div>\n <a class="\"selectable" \"\n="" href="%5C%22/manage/manufacturer/4%5C%22">\n KR3W\n </a>\n </div>\n\n <div>\n <a class="\"selectable" \"\n="" href="%5C%22/manage/manufacturer/3%5C%22">\n L1TA\n </a>\n </div>\n\n"]]}

有什么想法吗？

Answer 1

在json文本区域中有双引号及其html编码。例如，错误输出中的所有类属性都是这样的：

class="\&quote;classname\&quote;"

以上内容应为：

class=\"classname\"

原始json.dumps将输出：

>>> json.dumps(["#data", '<div class="classname"></div>'])
'["#data", "<div class=\\"classname\\"></div>"]'

我怀疑您的manufacturer_data_inline或selectable_manufacturers_inline来电正在加倍引用"\&quote;或者LazyEncoder类做错了。

simplejson double转义导致无效JSON字符串的数据

1 个答案: