go语言操作etcd

首先在后台启动etcd

写一段go代码

package main

import (
	"context"
	"fmt"
	clientv3 "go.etcd.io/etcd/client/v3"
	"time"
)

func main() {
	// 创建客户端，连接etcd
	cli, err := clientv3.New(clientv3.Config{
		Endpoints:   []string{"127.0.0.1:2379"},
		DialTimeout: 5 * time.Second,
	})
	if err != nil {
		fmt.Printf("connect to etcd failed, err:%v\n", err)
		return
	}
	fmt.Println("connect to etcd success")
	defer cli.Close()
	str := `[{"path":"d:/logs/s4.logs","topic":"s4_logs"},{"path":"d:/logs/web.logs","topic":"web_logs"}`
	// put操作
	_, err = cli.Put(context.TODO(), "collect_log_conf", str)
	if err != nil {
		fmt.Printf("put to etcd failed, err:%v\n", err)
		return
	}
	 get操作
	resp, err := cli.Get(context.TODO(), "collect_log_conf") // 获取指定Key的值
	if err != nil {
		fmt.Printf("get to etcd failed")
		return
	}
	for _, ev := range resp.Kvs {
		fmt.Printf("key：%s，value：%s\n", ev.Key, ev.Value)
	}
	 delete 删除key
	//if _,err = cli.Delete(context.TODO(), "testetcd");err != nil{
	//	fmt.Println("delete key failed")
	//}else{
	//	fmt.Println("delete key success")
	//}
}

也可以直接使用ectdctl工具查看key

etcdctl.exe --endpoints=127.0.0.1:2379 get collect_log_conf