Question

我很难将python请求发布请求与cherrypy服务器组合以便上传文件。

以下是cherrypy服务器内部的服务器端代码：

@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)

客户端（现在）只是一个python请求调用： testfile = open（'testfile'，'r'） request = requests.post（“http：//：8088 / upload /”，files = {'myFile'：testfile}）

不幸的是，我对这两个框架没有太多经验，我想知道错误传达的发生在哪里。执行此操作时，不会填充myFile变量（甚至不确定它是否应该是这样）并且我不确定应该如何接收该文件。感谢所有帮助！

PS。我收到的错误：

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"

所以我尝试使用默认示例执行此操作。以下是我将上传方法更改为：

@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。直接来自cherrypy的文档。

这是我在客户端做的事情：

jlsookiki@justin1:~$ 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
jlsookiki@justin1:~$ 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>

由于某种原因，该文件实际上并未被发送并且未被读取。任何人都知道为什么会这样？

Answer 1

确保在启动服务器时，cherrpy代码具有访问/权限以写入您尝试保存文件的位置。

cherrypy文件上传与请求发布请求相结合

1 个答案: