golang的rpc有两种方法进行调用，一种是rpc例子中给的：

1

23456789101112131415161718192021222324252627282930313233343536373839404142434445464748package main

import (

"net/rpc"    "net/http"    "log"    "net"    "time"

)

type Args struct {

A, B int

}

type Arith int

func (t Arith) Multiply(args Args, reply *([]string)) error {

*reply = append(*reply, "test")    return nil

}

func main() {

arith := new(Arith)    rpc.Register(arith)    rpc.HandleHTTP()         l, e := net.Listen("tcp", ":1234")    if e != nil {            log.Fatal("listen error:", e)    }    go http.Serve(l, nil)    time.Sleep(5 * time.Second)    client, err := rpc.DialHTTP("tcp", "127.0.0.1" + ":1234")    if err != nil {            log.Fatal("dialing:", err)    }         args := &Args{7,8}    reply := make([]string, 10)    err = client.Call("Arith.Multiply", args, &reply)    if err != nil {            log.Fatal("arith error:", err)    }    log.Println(reply)

}

另一种是使用NewServer

这种是当rpc已经注册的时候就要使用了另外一种了。即一个server只能在DefaultRPC中注册一种类型。

当Server使用rpc.NewServer的时候，client也需要进行下改动了

1

234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253package main

import (

"net/rpc"    //"net/http"    "log"    "net"    "time"

)

type Args struct {

A, B int

}

type Arith int

func (t Arith) Multiply(args Args, reply *([]string)) error {

*reply = append(*reply, "test")    return nil

}

func main() {

newServer := rpc.NewServer()    newServer.Register(new(Arith))    l, e := net.Listen("tcp", "127.0.0.1:1234") // any available address    if e != nil {            log.Fatalf("net.Listen tcp :0: %v", e)    }    go newServer.Accept(l)    newServer.HandleHTTP("/foo", "/bar")    time.Sleep(2 * time.Second)    address, err := net.ResolveTCPAddr("tcp", "127.0.0.1:1234")    if err != nil {            panic(err)    }    conn, _ := net.DialTCP("tcp", nil, address)    defer conn.Close()    client := rpc.NewClient(conn)    defer client.Close()    args := &Args{7,8}    reply := make([]string, 10)    err = client.Call("Arith.Multiply", args, &reply)    if err != nil {            log.Fatal("arith error:", err)    }    log.Println(reply)

}

1第二个例子中的1newServer.HandleHTTP("/foo", "/bar")1可以任意设置，第一个例子其实是设置了默认的两个1

1

这里也顺便将reply作为[]slice的例子给演示了下1

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