Question

以下是我的简化代码：

#coding=utf-8
...

def api_call(method, token, params=[], payload=None):
    ...
    headers = {
        'Content-Type': 'application/json; charset=utf-8'
    }
    try:
        response = urlfetch.Fetch(url, headers=headers, method=urlfetch.POST, payload=payload, deadline=60)
    ...

payload = '{"search":"%s"}' % ('тест') # UNICODE HERE!

result = api_call(method=method, token=MY_TOKEN, payload=payload)

此代码适用于非unicode字符，但是当使用unicode时，我得到：

  File "/Users/me/Documents/Dev/GAE/app.py", line 38, in api_call
    response = urlfetch.Fetch(url, headers=headers, method=urlfetch.POST, payload=payload, deadline=60)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/urlfetch.py", line 271, in fetch
    return rpc.get_result()
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/apiproxy_stub_map.py", line 613, in get_result
    return self.__get_result_hook(self)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/urlfetch.py", line 378, in _get_fetch_result
    rpc.check_success()
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/apiproxy_stub_map.py", line 579, in check_success
    self.__rpc.CheckSuccess()
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/apiproxy_rpc.py", line 157, in _WaitImpl
    self.request, self.response)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/ext/remote_api/remote_api_stub.py", line 201, in MakeSyncCall
    self._MakeRealSyncCall(service, call, request, response)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/ext/remote_api/remote_api_stub.py", line 219, in _MakeRealSyncCall
    request_pb.set_request(request.Encode())
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/net/proto/ProtocolBuffer.py", line 103, in Encode
    self.Output(e)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/net/proto/ProtocolBuffer.py", line 347, in Output
    self.OutputUnchecked(e)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/urlfetch_service_pb.py", line 478, in OutputUnchecked
    out.putPrefixedString(self.payload_)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/net/proto/ProtocolBuffer.py", line 607, in putPrefixedString
    v = str(v)
UnicodeEncodeError: 'ascii' codec can't encode characters in position 92-93: ordinal not in range(128)

这里有什么问题？

Answer 1

payload ='{“search”：“％s”}'％（'тест'）＃UNICODE HERE！

这不是创建JSON序列化对象的好方法。除了字符编码问题之外，如果模板化字符串包含字符串文字中特殊的字符（如引号或反斜杠），则也会出现问题。建议使用json模块创建序列化表单并同时处理编码：

search = u'тест'
payload = json.dumps({'search': search})

'Content-Type'：'application / json;字符集= UTF-8'

charset媒体类型没有application/json参数;这没什么。无论如何，JSON始终是UTF，默认情况下是UTF-8。

如何将unicode值作为urlfetch有效负载传递？

1 个答案: