CodePudding user response:
Supplement: IP and port number two can access to the Internet, but the use of domain name only WiFi access, use the traffic is notCodePudding user response:
Found that when you use the flow inside a Tomcat log record is a 400 error,,,,,,,400 Bad Request, the background is not an error, 400 refers to the Request is invalid (Request have grammar question or cannot meet the Request),
But why use a flow is the request is invalid or not understand