我尝试将自定义网络消息从我的客户端发送到我的服务器，并且我在行client.Send(AnimalDataMsgType.animalData, animalData);上的SendTexture（）函数中收到错误
NetworkClient Send with no connection UnityEngine.Networking.NetworkClient:Send(Int16, MessageBase) Client:SendTexture(Texture2D, String, String, Int32, Int32) (at Assets/Scripts/Client.cs:158) Client:SendOnButtonPress() (at Assets/Scripts/Client.cs:141) UnityEngine.EventSystems.EventSystem:Update()
我刚刚开始学习团结网络的各个方面，所以我不知道我在哪里出错了。我已经完成了初始化NetworkTransport的一切，而我的客户端正在连接到我的服务器，所以我很困惑为什么我没有连接错误。我真的很感激任何可以帮助我解决这个问题的人。下面附带客户端和服务器端脚本。谢谢！
客户端
public class Client : NetworkBehaviour {
NetworkClient client = new NetworkClient();
private const int MAX_CONNECTION = 100;
private string serverIP = "127.0.0.1";
private int port = 5708;
private int hostId;
private int webHostId;
private int reliableChannel;
private int reliableSeqChannel;
private int reliableFragChannel;
private int unreliableChannel;
private int unreliableSeqChannel;
private string playerName;
private int connectionId;
private float connectionTime;
private bool isStarted = false;
private bool isConnected = false;
private byte error;
private GameObject infoDisplayText;
public Texture2D texToSend;
string typeToSend = "Deer";
string idToSend = "1";
int strengthToSend = 80;
int hitPointsToSend = 2;
private void Start()
{
infoDisplayText = GameObject.Find("InfoDisplay");
}
public void Connect()
{
NetworkTransport.Init();
ConnectionConfig cc = new ConnectionConfig();
reliableChannel = cc.AddChannel(QosType.Reliable);
reliableSeqChannel = cc.AddChannel(QosType.ReliableSequenced);
reliableFragChannel = cc.AddChannel(QosType.ReliableFragmented);
unreliableChannel = cc.AddChannel(QosType.Unreliable);
unreliableSeqChannel = cc.AddChannel(QosType.UnreliableSequenced);
HostTopology topo = new HostTopology(cc, MAX_CONNECTION);
hostId = NetworkTransport.AddHost(topo, 0);
// Run client/server on different machines
//hostID = NetworkTransport.AddHost(topo, port, null);
connectionId = NetworkTransport.Connect(hostId, serverIP, port, 0, out error);
infoDisplayText = GameObject.Find("InfoDisplay");
infoDisplayText.GetComponent<Text>().text += playerName + " connected.\n";
connectionTime = Time.time;
isConnected = true;
}
private void Update()
{
if (!isConnected)
return;
int recHostId, connectionId, channelId;
byte[] recBuffer = new byte[1024];
int bufferSize = 1024;
int dataSize;
byte error;
NetworkEventType recData = NetworkTransport.Receive(out recHostId, out connectionId, out channelId, recBuffer, bufferSize, out dataSize, out error);
switch (recData)
{
case NetworkEventType.ConnectEvent:
Debug.Log("Player " + connectionId + " has connected");
infoDisplayText.GetComponent<Text>().text += "Connected to Server.\n";
break;
}
}
public void SendOnButtonPress()
{
SendTexture(texToSend, typeToSend, idToSend, strengthToSend, hitPointsToSend);
}
public void SendTexture(Texture2D tex, string type, string id, int strength, int hitpoints)
{
AnimalData animalData = new AnimalData();
animalData.Tex = tex.GetRawTextureData();
animalData.Type = type;
animalData.Id = id;
animalData.Strength = strength;
animalData.Hitpoints = hitpoints;
client.Connect(serverIP, port);
client.Send(AnimalDataMsgType.animalData, animalData);
}
}
服务器
public class Server : NetworkBehaviour
{
private const int MAX_CONNECTION = 100;
private int port = 5708;
private int hostId;
private int webHostId;
private int reliableChannel;
private int reliableSeqChannel;
private int reliableFragChannel;
private int unreliableChannel;
private int unreliableSeqChannel;
private bool isStarted = false;
private byte error;
private GameObject infoDisplayText;
private void Awake()
{
infoDisplayText = GameObject.Find("InfoDisplay");
}
private void Start()
{
NetworkTransport.Init();
ConnectionConfig cc = new ConnectionConfig();
reliableChannel = cc.AddChannel(QosType.Reliable);
reliableSeqChannel = cc.AddChannel(QosType.ReliableSequenced);
reliableFragChannel = cc.AddChannel(QosType.ReliableFragmented);
unreliableChannel = cc.AddChannel(QosType.Unreliable);
unreliableSeqChannel = cc.AddChannel(QosType.UnreliableSequenced);
HostTopology topo = new HostTopology(cc, MAX_CONNECTION);
hostId = NetworkTransport.AddHost(topo, port, null);
if (NetworkTransport.IsStarted)
{
isStarted = true;
Debug.Log("NetworkTransport is Started.");
infoDisplayText.GetComponent<Text>().text += "NetworkTransport is Started.\n";
}
Debug.Log("Server Started.");
infoDisplayText.GetComponent<Text>().text += "Server Started.\n";
setupRegisterHandler();
}
private void Update()
{
if (!isStarted)
return;
int recHostId, connectionId, channelId;
byte[] recBuffer = new byte[1024];
int bufferSize = 1024;
int dataSize;
byte error;
NetworkEventType recData = NetworkTransport.Receive(out recHostId, out connectionId, out channelId, recBuffer, bufferSize, out dataSize, out error);
switch (recData)
{
case NetworkEventType.ConnectEvent:
Debug.Log("Player " + connectionId + " has connected");
infoDisplayText.GetComponent<Text>().text += "Player " + connectionId + " has connected\n";
break;
}
}
// Create a client and connect to the server port
public void setupRegisterHandler()
{
NetworkServer.Listen(port);
Debug.Log("Registering server callbacks");
NetworkServer.RegisterHandler(AnimalDataMsgType.animalData, OnTextureReceive);
}
//Called when texture is received
public void OnTextureReceive(NetworkMessage netMsg)
{
AnimalData animalData = netMsg.ReadMessage<AnimalData>();
string type = animalData.Type;
Debug.Log("Type : " + type);
string id = animalData.Id;
Debug.Log("ID : " + id);
int strength = animalData.Strength;
Debug.Log("Strength : " + strength);
int hitpoints = animalData.Hitpoints;
Debug.Log("Hit Points : " + hitpoints);
//Your Received Texture2D
Texture2D receivedtexture = new Texture2D(1280, 1024);
receivedtexture.LoadRawTextureData(animalData.Tex);
receivedtexture.Apply();
Debug.Log(type + " data received!");
infoDisplayText.GetComponent<Text>().text += type + " data received!\n";
}
}
玩家类
public class Player : MessageBase
{
public GameObject Avatar;
public byte[] Tex; // data coming from CanvasController
public string Type; // data coming from CanvasController
public string Id; // data coming from GameManager
public int Strength; // data coming from PlayerController
public int Hitpoints; // data coming from PlayerController
public bool IsAlive; // data coming from PlayerController
}
答案 0 :(得分：1)
您同时调用这两行：
client.Connect(serverIP, port);
client.Send(AnimalDataMsgType.animalData, animalData);
通常，连接功能需要一些时间来建立连接。因此，当您在连接功能之后调用发送功能时，连接尚未建立。
所以，你可以遵循这种方法：
1.首先调用连接功能
2.连接成功后，它会调用回调方法 OnConnected
3.你在 OnConnected 中制作一个bool true，就像isConnected = true;
4.在致电发送之前，检查isConnected是否为真;
更多详情：https://docs.unity3d.com/ScriptReference/Networking.NetworkClient.Connect.html