protobuf3 any用法

package main

import (
    "github.com/golang/protobuf/ptypes/any"
    "github.com/gogo/protobuf/proto"
    "github.com/davecgh/go-spew/spew"
    "fmt"
)

func main() {
    ws := new(WebSocketMessage)
    v := make(map[string]*any.Any)
    a := new(any.Any)
    a.Value = []byte("ddd")
    v["a"] = a
    v["b"] = a
    ws.Value = v

    dd, _ := proto.Marshal(ws)

    ws2 := new(WebSocketMessage)
    proto.Unmarshal(dd, ws2)
    spew.Dump(ws2)
    fmt.Printf(" %s", ws2.GetValue())
}