Python + django implements file download,

Python + django implements file download,

(1) Method 1: directly use the file address in the href + database of tag a to download the file. Disadvantage: word excel is directly downloaded in a pop-up box. For image txt and other files, the download method is directly opened on the new page.

(2) Method 2: process the input items of the downloaded content in the python background, and a download box is displayed for the returned content.

# Background processing function def downloadFile (req): filename = basePath + req. GET ['url'] def file_iterator (file_name, chunk_size = 512): with open (file_name) as f: while True: c = f. read (chunk_size) if c: yield c else: break response = StreamingHttpResponse (file_iterator (filename )) response ['content-type'] = 'application/octet-stream' response ['content-disposition'] = 'attachment; filename = "{0 }"'. format (filename) return response

(3) Foreground Functions

① A tag calls the function input path <a href = '/downloadFile/url = path'>

②. The button label calls the jq method to call the background function.

<input type='button' class='download'> 

# Download button click event $ ("body"). on ("click", ". download", function () {3 location. href = "/downloadFile /? Url = "+ path ;});

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