golang http client 配置连接池

func SetHttpProxy() (httpclient http.Client) {
    ProxyURL, _ := url.Parse(global.HttpProxyUrl)
    httpclient = http.Client{
        //设置10s超时时间
        Timeout: 10 * time.Second,
        //http连接池配置
        Transport: &http.Transport{
            Proxy: http.ProxyURL(ProxyURL),
            DialContext: (&net.Dialer{
                Timeout:   30 * time.Second,
                KeepAlive: 30 * time.Second,
            }).DialContext,
            ForceAttemptHTTP2:     true,
            MaxIdleConns:          100,              //默认连接池有100个连接
            IdleConnTimeout:       90 * time.Second, //每个连接默认的空闲时间90s(90s内有请求过来，可以复用该连接)
            TLSHandshakeTimeout:   10 * time.Second,
            ExpectContinueTimeout: 1 * time.Second,
        },
    }
    return httpclient
}