go get -u github.com/astaxie/beego
attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
go get 换源
$ go env -w GO111MODULE=on $ go env -w GOPROXY=https://goproxy.cn,direct
$ export GO111MODULE=on $ export GOPROXY=https://goproxy.cn