9.5 使用Zinx-V0.9完成应用程序

好了，现在我们基本上已经将全部的连接管理的功能集成到Zinx中了，接下来就需要测试一下链接管理模块是否可以使用了。

写一个服务端:

Server.go

package main

import (
    "fmt"
    "zinx/ziface"
    "zinx/znet"
)

//ping test 自定义路由
type PingRouter struct {
    znet.BaseRouter
}

//Ping Handle
func (this *PingRouter) Handle(request ziface.IRequest) {
    fmt.Println("Call PingRouter Handle")
    //先读取客户端的数据，再回写ping...ping...ping
    fmt.Println("recv from client : msgId=", request.GetMsgID(), ", data=", string(request.GetData()))

    err := request.GetConnection().SendBuffMsg(0, []byte("ping...ping...ping"))
    if err != nil {
        fmt.Println(err)
    }
}

type HelloZinxRouter struct {
    znet.BaseRouter
}

//HelloZinxRouter Handle
func (this *HelloZinxRouter) Handle(request ziface.IRequest) {
    fmt.Println("Call HelloZinxRouter Handle")
    //先读取客户端的数据，再回写ping...ping...ping
    fmt.Println("recv from client : msgId=", request.GetMsgID(), ", data=", string(request.GetData()))

    err := request.GetConnection().SendBuffMsg(1, []byte("Hello Zinx Router V0.8"))
    if err != nil {
        fmt.Println(err)
    }
}

//创建连接的时候执行
func DoConnectionBegin(conn ziface.IConnection) {
    fmt.Println("DoConnecionBegin is Called ... ")
    err := conn.SendMsg(2, []byte("DoConnection BEGIN..."))
    if err != nil {
        fmt.Println(err)
    }
}

//连接断开的时候执行
func DoConnectionLost(conn ziface.IConnection) {
    fmt.Println("DoConneciotnLost is Called ... ")
}

func main() {
    //创建一个server句柄
    s := znet.NewServer()

    //注册链接hook回调函数
    s.SetOnConnStart(DoConnectionBegin)
    s.SetOnConnStop(DoConnectionLost)

    //配置路由
    s.AddRouter(0, &PingRouter{})
    s.AddRouter(1, &HelloZinxRouter{})

    //开启服务
    s.Serve()
}

我们这里注册了两个Hook函数一个是链接初始化之后DoConnectionBegin()和链接停止之前DoConnectionLost()。

DoConnectionBegin()会发给客户端一个消息2的文本，并且在服务端打印一个调试信息"DoConnecionBegin is Called ... "

DoConnectionLost()在服务端打印一个调试信息"DoConneciotnLost is Called ... "

客户端：

Client.go

package main

import (
    "fmt"
    "io"
    "net"
    "time"
    "zinx/znet"
)

/*
    模拟客户端
 */
func main() {

    fmt.Println("Client Test ... start")
    //3秒之后发起测试请求，给服务端开启服务的机会
    time.Sleep(3 * time.Second)

    conn,err := net.Dial("tcp", "127.0.0.1:7777")
    if err != nil {
        fmt.Println("client start err, exit!")
        return
    }

    for {
        //发封包message消息
        dp := znet.NewDataPack()
        msg, _ := dp.Pack(znet.NewMsgPackage(0,[]byte("Zinx V0.8 Client0 Test Message")))
        _, err := conn.Write(msg)
        if err !=nil {
            fmt.Println("write error err ", err)
            return
        }

        //先读出流中的head部分
        headData := make([]byte, dp.GetHeadLen())
        _, err = io.ReadFull(conn, headData) //ReadFull 会把msg填充满为止
        if err != nil {
            fmt.Println("read head error")
            break
        }
        //将headData字节流 拆包到msg中
        msgHead, err := dp.Unpack(headData)
        if err != nil {
            fmt.Println("server unpack err:", err)
            return
        }

        if msgHead.GetDataLen() > 0 {
            //msg 是有data数据的，需要再次读取data数据
            msg := msgHead.(*znet.Message)
            msg.Data = make([]byte, msg.GetDataLen())

            //根据dataLen从io中读取字节流
            _, err := io.ReadFull(conn, msg.Data)
            if err != nil {
                fmt.Println("server unpack data err:", err)
                return
            }

            fmt.Println("==> Recv Msg: ID=", msg.Id, ", len=", msg.DataLen, ", data=", string(msg.Data))
        }

        time.Sleep(1*time.Second)
    }
}

代码不变。

启动服务端

$go run Server.go

启动客户端

$go run Client.go

服务端结果:

$ go run Server.go 
Add api msgId =  0
Add api msgId =  1
[START] Server name: zinx v-0.8 demoApp,listenner at IP: 127.0.0.1, Port 7777 is starting
[Zinx] Version: V0.4, MaxConn: 3, MaxPacketSize: 4096
start Zinx server   zinx v-0.8 demoApp  succ, now listenning...
Worker ID =  9  is started.
Worker ID =  5  is started.
Worker ID =  6  is started.
Worker ID =  7  is started.
Worker ID =  8  is started.
Worker ID =  1  is started.
Worker ID =  0  is started.
Worker ID =  2  is started.
Worker ID =  3  is started.
Worker ID =  4  is started.
connection add to ConnManager successfully: conn num =  1
---> CallOnConnStart....
DoConnecionBegin is Called ... 
[Writer Goroutine is running]
[Reader Goroutine is running]
Add ConnID= 0  request msgID= 0 to workerID= 0
Call PingRouter Handle
recv from client : msgId= 0 , data= Zinx V0.8 Client0 Test Message
Add ConnID= 0  request msgID= 0 to workerID= 0
Call PingRouter Handle
recv from client : msgId= 0 , data= Zinx V0.8 Client0 Test Message
Add ConnID= 0  request msgID= 0 to workerID= 0
Call PingRouter Handle
recv from client : msgId= 0 , data= Zinx V0.8 Client0 Test Message
Add ConnID= 0  request msgID= 0 to workerID= 0
Call PingRouter Handle
recv from client : msgId= 0 , data= Zinx V0.8 Client0 Test Message
Add ConnID= 0  request msgID= 0 to workerID= 0
Call PingRouter Handle
recv from client : msgId= 0 , data= Zinx V0.8 Client0 Test Message
read msg head error  read tcp4 127.0.0.1:7777->127.0.0.1:49510: read: connection reset by peer
Conn Stop()...ConnID =  0
---> CallOnConnStop....
DoConneciotnLost is Called ... 
connection Remove ConnID= 0  successfully: conn num =  0
127.0.0.1:49510 [conn Reader exit!]
127.0.0.1:49510 [conn Writer exit!]

客户端结果：

$ go run Client0.go 
Client Test ... start
==> Recv Msg: ID= 2 , len= 21 , data= DoConnection BEGIN...
==> Recv Msg: ID= 0 , len= 18 , data= ping...ping...ping
==> Recv Msg: ID= 0 , len= 18 , data= ping...ping...ping
==> Recv Msg: ID= 0 , len= 18 , data= ping...ping...ping
==> Recv Msg: ID= 0 , len= 18 , data= ping...ping...ping
^Csignal: interrupt

客户端创建成功，回调Hook已经执行，并且Conn被添加到ConnManager 中， conn num = 1，

当我们手动CTRL+C 关闭客户端的时候， 服务器ConnManager已经成功将Conn摘掉，conn num = 0.

同时服务端也打印出 conn停止之后的回调信息。