PYTHON如何在内存中生成ZIP文件[python高级教程]

PYTHON如何在内存中生成ZIP文件[python高级教程]

如题,代码如下:

class MemoryZipFile(object):

def __init__(self):

#创建内存文件

self._memory_zip = StringIO.StringIO()

def append_content(self, filename_in_zip, file_content):

"""

description: 写文本内容到zip

"""

zf = zipfile.ZipFile(self._memory_zip, "a", zipfile.ZIP_DEFLATED, False)

zf.writestr(filename_in_zip, file_content)

for zfile in zf.filelist: zfile.create_system = 0

return self

def append_file(self, filename_in_zip, local_file_full_path):

"""


      description:写文件内容到zip

      注意这里的第二个参数是本地磁盘文件的全路径(windows:c/demo/1.jpg | linux: /usr/local/test/1.jpg)

      """

      zf = zipfile.ZipFile(self._memory_zip, "a", zipfile.ZIP_DEFLATED, False)

      zf.write(local_file_full_path, filename_in_zip)

      for zfile in zf.filelist: zfile.create_system = 0      

      return self

     

  def read(self):

      """

      description: 读取zip文件内容

      """

      self._memory_zip.seek(0)

      return self._memory_zip.read()

 

  def write_file(self, filename):

      """

      description:写zip文件到磁盘

      """

      f = file(filename, "wb")

      f.write(self.read())

      f.close()




使用方法如下:


python;toolbar:false;">        mem_zip_file = MemoryZipFile()

mem_zip_file.append_content("mimetype", "application/epub+zip")

mem_zip_file.append_content("META-INF/container.xml", """<?xml version="1.0" encoding="UTF-8" ?>

<container version="1.0" xmlns="urn:oasis:names:tc:opendocument:xmlns:container"> </container>""");

#追加磁盘上的文件内容到内存,注意这里的第二个参数是本地磁盘文件的全路径(windows:c/demo/1.jpg | linux: /usr/local/test/1.jpg)

mem_zip_file.append_file("1.jpg", "c:1.jpg")

#将内存中的zip文件写入磁盘

mem_zip_file.write_file("c:test.zip")

#获取内存zip文件内容

data = mem_zip_file.read()

#上传到fdfs

my_fdfs_client.upload_by_buffer(data, "zip")


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