Fiddler capture it under normal HttpURLConnection

Such as unfamiliar street HttpURLConnection use for communication APP can not do it

Fiddler also need to be set as follows:

点击"Rules->CustomizeRules";

Added after the function OnBeforeResponse

if (oSession.oRequest["User-Agent"].indexOf("Android")> -1 && oSession.HTTPMethodIs("CONNECT")) {oSession.oResponse.headers["Connection"] = "Keep-Alive"; }

As shown below:

Here's "Android" can be replaced with a User-Agent in the other characters, to ensure that the match on the line User-Agent

The following is an example of packet capture: