go下载依赖报错：DIAL TCP 34.64.4.113:443: CONNECTEX: A CONNECTION ATTEMPT FAILED BECAUSE THE CONNECTED

用 go build 创建项目，拉取go第三方扩展包的时候报如下错误：

dial tcp 34.64.4.113:443: connectex: 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.

解决办法：

1. 查看 GOSUMDB 的配置

最后是因为：set GOSUMDB=sum.golang.org

2. 关掉GOSUMDB

go env -w GOSUMDB=off

3. 配置代理

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

再次运行项目，依赖下载成功~