Go 链接失效问题解决A connection attempt

具体报错

A connection 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.、

问题解决：

运行命令 设置GOPROXY代理：

go env -w GOPROXY=https://goproxy.cn,direct

设置GOPRIVATE跳转私有库：

go env -w GOPRIVATE=.gitlab.com,.gitee.com

关闭GOSUMDB

go env -w GOSUMDB=off

设置GOSUMDB

go env -w GOSUMDB=“sum.golang.google.cn”

解决