server

type HelloService struct{}
func (h *HelloService) SayHi(greeting string, reply *string) error {
    *reply = "Hello, " + greeting
    return nil
}
func main() {
    // 1.实例化一个server
    listener, _ := net.Listen("tcp", ":8080")
    // 2.注册处理逻辑
    _ = rpc.RegisterName("HelloService", &HelloService{})
    // 3.启动服务
    for {
        conn, _ := listener.Accept()    // 这个方法只监听一次
        rpc.ServeConn(conn)
    }
}

client

func main() {
    // 1.建立连接
    client, _ := rpc.Dial("tcp", ":8080")
    // 2.调用方法
    var reply string
    err := client.Call("HelloService.SayHi", "Felix", &reply)
    if err != nil {
        panic("远程调用失败")
    }
    fmt.Println("reply: ", reply)
}