这是一些简单的代码,将流式传输CSV;您可能可以从这里转到您需要做的一切:
import cStringIO as StringIO
import csv
def csv(request):
def data():
for i in xrange(10):
csvfile = StringIO.StringIO()
csvwriter = csv.writer(csvfile)
csvwriter.writerow([i,"a","b","c"])
yield csvfile.getvalue()
response = HttpResponse(data(), mimetype="text/csv")
response["Content-Disposition"] = "attachment; filename=test.csv"
return response
这只是将每一行写入内存文件中,读取并产生该行。
此版本对于生成批量数据更有效,但是在使用它之前请务必了解以上内容:
import cStringIO as StringIO
import csv
def csv(request):
csvfile = StringIO.StringIO()
csvwriter = csv.writer(csvfile)
def read_and_flush():
csvfile.seek(0)
data = csvfile.read()
csvfile.seek(0)
csvfile.truncate()
return data
def data():
for i in xrange(10):
csvwriter.writerow([i,"a","b","c"])
data = read_and_flush()
yield data
response = HttpResponse(data(), mimetype="text/csv")
response["Content-Disposition"] = "attachment; filename=test.csv"
return response