there is a parameter in model. Can I still get it in the request field after redirect? 
I just want to ask, can I get this token in this request? why do I always get null
there is a parameter in model. Can I still get it in the request field after redirect?
I just want to ask, can I get this token in this request? why do I always get null
redirect and forward are different. Redirect tells the client that you want to visit the next link. At this time, if you don't put the parameters in areas such as session, you can't save the information. At this time, if you want to pass token, either put token on url redirect; or use a place on the server to save the token,. Generally, session, looks at your needs and uses redirect before you can access token.
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