我需要在我的Python-Tornado服务器上接收一个Protocol Buffers消息,并从二进制消息中提取内容。
在某些情况下,它会出现以下错误 -
可能的原因是什么?
postContent = self.request.body
message = prototemp.ReqMessage()
message.ParseFromString(postContent)
使用测试工具时它能完美运行。但当我在沙盒环境下模拟1000个客户端请求时,它在某些情况下可以正常工作,但在大多数请求中会抛出异常 -
File "server1.py", line 21, in post
message.ParseFromString(postContent)
File "/usr/lib/python2.6/site-packages/protobuf-2.4.1-py2.6.egg/google/protobuf/message.py", line 179, in ParseFromString
self.MergeFromString(serialized)
File "/usr/lib/python2.6/site-packages/protobuf-2.4.1-py2.6.egg/google/protobuf/internal/python_message.py", line 755, in MergeFromString
if self._InternalParse(serialized, 0, length) != length:
File "/usr/lib/python2.6/site-packages/protobuf-2.4.1-py2.6.egg/google/protobuf/internal/python_message.py", line 782, in InternalParse
pos = field_decoder(buffer, new_pos, end, self, field_dict)
File "/usr/lib/python2.6/site-packages/protobuf-2.4.1-py2.6.egg/google/protobuf/internal/decoder.py", line 544, in DecodeField
if value._InternalParse(buffer, pos, new_pos) != new_pos:
File "/usr/lib/python2.6/site-packages/protobuf-2.4.1-py2.6.egg/google/protobuf/internal/python_message.py", line 782, in InternalParse
pos = field_decoder(buffer, new_pos, end, self, field_dict)
File "/usr/lib/python2.6/site-packages/protobuf-2.4.1-py2.6.egg/google/protobuf/internal/decoder.py", line 410, in DecodeField
field_dict[key] = local_unicode(buffer[pos:new_pos], 'utf-8')
UnicodeDecodeError: 'utf8' codec can't decode byte 0xce in position 1: invalid continuation byte
在某些情况下,它会出现以下错误 -
UnicodeDecodeError: 'utf8' codec can't decode byte 0xbf in position 3: invalid start byte
UnicodeDecodeError: 'utf8' codec can't decode byte 0xe7 in position 3: unexpected end of data
可能的原因是什么?
pdb
查看那个点上的变量是什么?因为它告诉你问题所在:在字符串中指定位置有一些字符无法用utf-8编码。所以你需要处理这个字符。(如果你能找出它是什么,并确定是否需要通常处理它,你就能处理它了) - Jeff Tratner