Question

我正在使用python 2.7和cherrypy 3.7，并在Ubuntu 14.04上运行它们。我正在使用大学桌面时，无法为此项目安装新模块。

将此行添加到函数后：

    in_dict = json.loads(parameters)

按我的应用程序中导致调用此功能的按钮导致“500内部服务器错误”。参数是一个字典翻转的json对象。这肯定是导致错误的这一行。

以下是完整的错误消息：

500内部服务器错误

服务器遇到意外情况，导致无法完成请求。

Traceback (most recent call last):
  File "/afs/ec.auckland.ac.nz/users/h/r/hril230/unixhome/Documents/hril230/Project/cherrypy/_cprequest.py", line 670, in respond
    response.body = self.handler()
  File "/afs/ec.auckland.ac.nz/users/h/r/hril230/unixhome/Documents/hril230/Project/cherrypy/lib/encoding.py", line 217, in __call__
    self.body = self.oldhandler(*args, **kwargs)
  File "/afs/ec.auckland.ac.nz/users/h/r/hril230/unixhome/Documents/hril230/Project/cherrypy/_cpdispatch.py", line 61, in __call__
    return self.callable(*self.args, **self.kwargs)
  File "mainFile.py", line 146, in sendMessage
    msgResponse = urllib2.urlopen(req).read()
  File "/usr/lib/python2.7/urllib2.py", line 127, in urlopen
    return _opener.open(url, data, timeout)
  File "/usr/lib/python2.7/urllib2.py", line 410, in open
    response = meth(req, response)
  File "/usr/lib/python2.7/urllib2.py", line 523, in http_response
    'http', request, response, code, msg, hdrs)
  File "/usr/lib/python2.7/urllib2.py", line 448, in error
    return self._call_chain(*args)
  File "/usr/lib/python2.7/urllib2.py", line 382, in _call_chain
    result = func(*args)
  File "/usr/lib/python2.7/urllib2.py", line 531, in http_error_default
    raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
HTTPError: HTTP Error 500: Internal Server Error

以下是我的导入：

# -*- coding: utf-8 -*-
import cherrypy
import urllib2
import hashlib
import urllib
#import ipgetter TODO:Uncomment before handing in
import socket
import json

以下是发送的功能：

#This function sends a message TODO: Finish this, delete temp link
@cherrypy.expose
def sendMessage(self, sender, info, message):
    destination = info[:7] #destination obtained
    relevant = info[10:]
    i = 0
    while (relevant[i] != ","):
        i += 1
    ip = relevant[:i] #IP obtained
    portUnfinished = relevant[(i+1):]
    i = 0
    while (portUnfinished[i] != ","):
        i += 1
    port = portUnfinished[:i] #port obtained
    out_dict = {"sender":sender, "destination":destination, "message":message}
    parameters = json.dumps(out_dict) #all parameters are now combined into a json object
    req = urllib2.Request("http://127.0.0.1:8080/receiveMessage", parameters, {'Content-Type':'application/json'})
    msgResponse = urllib2.urlopen(req).read()
    return msgResponse

以下是接收的功能：

#API IMPLEMENTED: /receiveMessage TODO: Complete this function
@cherrypy.expose
@cherrypy.tools.json_in()
def receiveMessage(self):
    in_dict = json.loads(parameters)
    return "0"

为什么行“in_dict = json.loads（parameters）”会导致此错误？

更新：非常有用的Eli Rose引起了我的注意，参数不应该是json.loads（）的参数。为了找出应该是什么，我回到了使用json的指令，并意识到我在错误的地方使用了错误的指令。我应该使用：

var = cherrypy.request.json

感谢所有评论过的人！

Python：json.loads（）导致'500内部服务器错误'

0 个答案: