etcdv3出错

你的Endpoints写错了，localhost不是loca lhost

请检查下etcd的版本；如果是docker，默认镜像好像是v2，用etcdctl看看。 使用git clone项目，然后自己docker build的镜像是最新的。 我的docker启动命令，使用自己build的镜像，和go代码例子。 docker run -d --restart=always -p 2379:2379 -p 2380:2380 -v /data/docker/etcd/node1:/node1.etcd -e ETCD_NAME=node1 -e ETCD_ADVERTISE_CLIENT_URLS=http://0.0.0.0:2379 -e ETCD_LISTEN_CLIENT_URLS=http://0.0.0.0:2379 etcd ```golang package main import ( "log" "time" "context" "github.com/coreos/etcd/client" ) func main() { cfg := client.Config{ Endpoints: []string{"http://127.0.0.1:2379"}, Transport: client.DefaultTransport, // set timeout per request to fail fast when the target endpoint is unavailable HeaderTimeoutPerRequest: time.Second, } c, err := client.New(cfg) if err != nil { log.Fatal(err) } kapi := client.NewKeysAPI(c) // set "/foo" key with "bar" value log.Print("Setting '/foo' key with 'bar' value") resp, err := kapi.Set(context.Background(), "/foo", "bar", nil) if err != nil { log.Fatal(err) } else { // print common key info log.Printf("Set is done. Metadata is %q\n", resp) } // get "/foo" key's value log.Print("Getting '/foo' key value") resp, err = kapi.Get(context.Background(), "/foo", nil) if err != nil { log.Fatal(err) } else { // print common key info log.Printf("Get is done. Metadata is %q\n", resp) // print value log.Printf("%q key has %q value\n", resp.Node.Key, resp.Node.Value) } } ```