Django 文件下载功能

 def file_download(request):
     con= MySQLdb.connect(host='192.168.xxx.xxx',user='root',passwd='xxxx',db='test')
     cursor = con.cursor()
     query = "SELECT * FROM xxxx"
     cursor.execute(query)
     with open('xxxx.csv','w') as f:
         writer = csv.writer(f)
         for row in cursor.fetchall():
             writer.writerow(row)
     with open('xxxx.csv') as f:
         c = f.read()
     response = HttpResponse(c)
     response['Content-Type'] = 'application/octet-stream'
     response['Content-Disposition'] = 'attachment;filename="{0}"'.format('xxxx.csv')
     return response

上述代码是django下载文件的功能。

因为我使用的是MYSQL 数据库，先连接数据库，打开并导出文件writer, 然后使用open,read，读出文件，后HTTPRESPONE将文件下载导出。