2018/07/06 18:10:51 call err: gob: type not registered for interface: map[string]interface {} panic: call err: gob: type not registered for interface: map[string]interface {} 确定原因是，map赋值给interface{}字段 也就是说，rpc调用不支持interface{}字段咯

x.go

package main

import (
	"net/rpc"
	"log"
	"fmt"
)

func failOnErr(err error, s string) {
	if err != nil {
		s := fmt.Sprintf("%s: %s", s, err)
		log.Print(s)
		panic(s)
	}
}

type Args struct {
	X interface{}
}

type Reply struct {

}

func main() {
	conn, err := rpc.Dial("tcp", ":9876")
	failOnErr(err, "dail fail")

	args := Args{
		X:map[string]interface{}{},
	}
	reply := &Reply{}
	err = conn.Call("R.T", args, reply)
	failOnErr(err, "call err")
}