31 lines
702 B
Go
31 lines
702 B
Go
package main
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import (
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"context"
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"fmt"
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"go.etcd.io/etcd/client/v3"
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"time"
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)
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func main() {
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cli, err := clientv3.New(clientv3.Config{
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Endpoints: []string{"43.143.245.135:2379"},
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DialTimeout: 5 * time.Second,
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})
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if err != nil {
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//handle error!
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fmt.Println("connect etcd server failed,error:", err)
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}
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defer cli.Close()
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//watch
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//派一个哨兵监视wangao这个key的变化（新增修改删除）
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watchchannel := cli.Watch(context.Background(), "wangao")
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//从通道中尝试取值（监视的信息）
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for wresp := range watchchannel {
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for _, evt := range wresp.Events {
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fmt.Printf("Type:%v key:%v value:%v\n", evt.Type, string(evt.Kv.Key), string(evt.Kv.Value))
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}
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}
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}
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