用python将.zip blob从xml提取到文件

pn9klfpd  于 2021-09-08  发布在  Java
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我有一个从数据库输出的大xml文件,其中包含用于附加zip文件的blob字段。示例(很抱歉输出的文本太长,我选择了最短的一个):

<Attach><FileName>Protocols.zip</FileName><Type>zip</Type><Blob>UEsDBBQAAAAIAAEXolL0xX1/dggAAEEZAAA2AAAAj+Cu4q6qrqsgrqEgrq/gpaSlq6WtqKgg4+eg
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IPwgNzEwNzM4LmRvY1BLBQYAAAAAAQABAGQAAADKCAAAAAA=</Blob></Attach>

我正在尝试使用python解压缩:

with open("file.zip", "wb") as f_zip:
    f_zip.write(base64.b64encode(my_blob.encode('utf-8')))

文件已创建,但尝试打开时出现错误“无法展开”file.zip。它的格式不受支持“

3duebb1j

3duebb1j1#

maurice建议的最终解决方案,以及减少可能的不正确填充错误:

with open("file2.zip", "wb") as f_zip:
    f_zip.write(base64.b64decode(my_blob+ "==="))

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