Question

有没有办法在执行期间更改HttpWebResponse / Request允许的连接数？我理解如何在程序启动时初始设置此值，但是一旦程序执行，更改服务点管理器类的defaultConnectionLimit就不起作用。

感谢任何指导！

Answer 1

在网上查看更多资料，我能够找到适合我的解决方案。为了在执行期间更改连接限制，您无法使用

import pandas as pd
from collections import OrderedDict

read_this = OrderedDict({"970":{"0.0":0.0,"0.975301809":0.153,"1.950603618":0.711,"2.925905427":1.269,"3.901207236":1.7775,"4.876509045":1.3125,"5.851810854":0.8475,"6.827112663":0.3825,"7.802414472":0.0,"8.777716281":0.0,"9.75301809":0.0},"1250":{"0.0":0.72,"0.975301809":0.6608,"1.950603618":0.5616,"2.925905427":0.4624,"3.901207236":0.3632,"4.876509045":0.36,"5.851810854":0.36,"6.827112663":0.36,"7.802414472":0.36,"8.777716281":0.36,"9.75301809":0.36},"2000":{"0.0":0.36,"0.975301809":1.18368,"1.950603618":3.50496,"2.925905427":5.383636362,"3.901207236":6.398181817,"4.876509045":9.031304347,"5.851810854":12.91304348,"6.827112663":14.7792,"7.802414472":15.8208,"8.777716281":16.56,"9.75301809":16.56},"3000":{"0.0":2.16,"0.975301809":5.03712,"1.950603618":9.85824,"2.925905427":13.33152,"3.901207236":15.83136,"4.876509045":18.57375,"5.851810854":21.50325,"6.827112663":24.43275,"7.802414472":818.440258,"8.777716281":1625.416258,"9.75301809":2041.92},"4000":{"0.0":8.64,"0.975301809":10.95428571,"1.950603618":16.26857143,"2.925905427":24.38666667,"3.901207236":33.48,"4.876509045":36.50666666,"5.851810854":34.85333333,"6.827112663":387.6812305,"7.802414472":1301.771077,"8.777716281":2215.860923,"9.75301809":2908.8},"5000":{"0.0":7.2,"0.975301809":134.1889811,"1.950603618":492.0670188,"2.925905427":849.9450564,"3.901207236":1207.823094,"4.876509045":1632.171428,"5.851810854":2814.281143,"6.827112663":3996.390856,"7.802414472":5178.500572,"8.777716281":6360.610284,"9.75301809":7542.72},"5500":{"0.0":285.48,"0.975301809":548.6879999,"1.950603618":1290.456,"2.925905427":2032.224,"3.901207236":2773.992,"4.876509045":3515.76,"5.851810854":5088.96,"6.827112663":6662.16,"7.802414472":8235.36,"8.777716281":9808.56,"9.75301809":11381.76},"6000":{"0.0":563.76,"0.975301809":963.1870186,"1.950603618":2088.844981,"2.925905427":3214.502943,"3.901207236":4340.160906,"4.876509045":5399.348572,"5.851810854":7363.638857,"6.827112663":9327.929144,"7.802414472":11292.21943,"8.777716281":13256.50972,"9.75301809":15220.8}})
df = pd.DataFrame.from_dict(read_this)

这部分是因为一旦连接首先尝试使用前一行进行更改，它将起作用，因为已经使用默认限制建立了对主机限制的连接，但在此之后将不起作用它只会更改需要新默认限制的新连接。

但您可以使用

ServicePointManager.DefaultConnectionLimit = number

如何在程序执行期间更改HttpWebRequest / Response的连接限制

1 个答案: