2013-03-25 82 views
1

我很難將python請求發佈請求與cherrypy服務器結合起來以上傳文件。cherrypy文件上傳結合請求發佈請求

下面介紹一下CherryPy的服務器內部的服務器端的代碼如下所示:

@cherrypy.expose 
def upload(self, myFile=None): 
    out = """<html> 
    <body> 
    myFile length: %s<br /> 
    myFile filename: %s<br /> 
    myFile mime-type: %s 
    </body> 
    </html>""" 

    size = 0 
    allData='' 
    logging.info('myfile: ' + str(myFile)) 
    while True: 
      data = myFile.file.read(8192) 
      allData+=data 
      if not data: 
        break 
      size += len(data) 
    savedFile=open(myFile.filename, 'wb') 
    logging.info('writing file: ' + myFile.filename) 
    savedFile.write(allData) 
    savedFile.close() 
    return out % (size, myFile.filename, myFile.type) 

和客戶端(現在)是一個簡單的蟒蛇請求撥打: testfile的=開放(「testfile的」,「R ') request = requests.post(「http://:8088/upload /」,files = {'myFile':testfile})

不幸的是我對這兩個框架沒有太多的經驗,我很想知道錯誤交流在哪裏。當這個被執行時,myFile變量沒有被填充(甚至不知道它是否應該是),我也不確定cherrypy應該如何接收文件。所有幫助表示讚賞!

PS。我收到的錯誤:

File "/usr/lib/pymodules/python2.7/cherrypy/_cprequest.py", line 656, in respond 
response.body = self.handler() 
File "/usr/lib/pymodules/python2.7/cherrypy/lib/encoding.py", line 188, in __call__ 
self.body = self.oldhandler(*args, **kwargs) 
File "/usr/lib/pymodules/python2.7/cherrypy/_cpdispatch.py", line 34, in __call__ 
return self.callable(*self.args, **self.kwargs) 
File "/usr/bin/apt-repo", line 194, in upload 
data = myFile.file.read(8192) 
AttributeError: 'NoneType' object has no attribute 'file' 

10.136.26.168 - - [25/Mar/2013:15:51:37] "POST /upload/ HTTP/1.1" 500 1369 "" "python- requests/0.8.2" 

所以我試着用默認的例子做這件事。以下是我將上傳方法更改爲:

@cherrypy.expose 
def upload(self, myFile=None): 
    out = """<html> 
    <body> 
     myFile length: %s<br /> 
     myFile filename: %s<br /> 
     myFile mime-type: %s 
    </body> 
    </html>""" 

    # Although this just counts the file length, it demonstrates 
    # how to read large files in chunks instead of all at once. 
    # CherryPy reads the uploaded file into a temporary file; 
    # myFile.file.read reads from that. 
    size = 0 
    while True: 
     data = myFile.file.read(8192) 
     if not data: 
      break 
     size += len(data) 
    print out % (size, myFile.filename, myFile.content_type) 
    return out % (size, myFile.filename, myFile.content_type) 
""" 

非常基本。直接從cherrypy的文檔中找到。

這裏是我做的客戶端是什麼:

[email protected]:~$ ls -lh bnt-beapi_1.9.6_amd64.deb 
-rw-r--r-- 1 jlsookiki users 30K Mar 26 11:20 bnt-beapi_1.9.6_amd64.deb 
[email protected]:~$ python 
>>> import requests 
>>> files = open('bnt-beapi_1.9.6_amd64.deb', 'rb') 
>>> url = "http://0.0.0.0:8089/upload" 
>>> r = requests.post(url, files={'myFile': files}) 
>>> print r.text 
<html> 
     <body> 
      myFile length: 0<br /> 
      myFile filename: bnt-beapi_1.9.6_amd64.deb<br /> 
      myFile mime-type: application/x-debian-package 
     </body> 
</html> 

出於某種原因,該文件實際上並未得到送過來,並沒有被讀取。任何人都知道爲什麼會發生這種情況?

+0

您的代碼完全適合我。 – 2013-03-26 04:56:25

+0

它呢?你能夠正確地將文件保存在服務器端? – jsookiki 2013-03-26 17:51:10

+0

是的。對不起,我希望我遇到了一個錯誤。 :) – 2013-03-26 20:20:00

回答

0

確保在啓動服務器時,cherrpy代碼有權訪問/寫入您要保存文件的位置。