simplejson双重转义数据导致无效的JSON字符串
我有一个简单的表单,用来管理我店里的制造商。在提交表单后,ajax调用会返回一个包含更新数据的json格式的字符串。但问题是,这个返回的字符串是无效的,感觉像是被双重转义了。奇怪的是,整个店里用的类似方法都没有问题。我还在用jquery 1.6作为我的JavaScript框架。
这个模型包含三个字段:一个字符型字段用于名称,一个文本型字段用于描述,还有一个图像字段用于制造商的logo。
这个函数:
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)
控制台中的错误信息:无效的JSON错误:
未捕获的异常:无效的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?
1 个回答
在你的json文本中,既有双引号,也有它的html编码。例如,错误输出中的所有类属性都是这样的:
class="\"e;classname\"e;"
上面的内容应该是:
class=\"classname\"
一个普通的 json.dumps
会输出这个:
>>> json.dumps(["#data", '<div class="classname"></div>'])
'["#data", "<div class=\\"classname\\"></div>"]'
我怀疑你的 manufacturer_data_inline
或者 selectable_manufacturers_inline
调用可能导致了引号的重复 "\"e;
,或者是LazyEncoder类出了问题。