[Unity3d]socket通訊切換到web版本時報錯SecurityException解決辦法

時間 2019-11-13

標籤 unity3d unity socket 通訊切換 web 版本報錯 securityexception 解決辦法欄目系統網絡简体版

原文原文鏈接

今天苦戰了一天，就跟一個Unity切換到web平臺的socket通訊出錯苦苦糾纏了一天，問了好多大牛，但他們的回覆都是我沒搞過web平臺下的通訊或者我只專研於pc或者移動平臺。看來沒辦法了，只能本身硬着頭皮往下探究了，貌似以前flash開發就是這樣，凡事碰到要跟服務器通訊的都會出現老大難的權限不足的錯誤。 html

具體錯誤以下： web

SecurityException: Unable to connect, as no valid crossdomain policy was found
System.Net.Sockets.Socket.Connect_internal (IntPtr sock, System.Net.SocketAddress sa, System.Int32& error, Boolean requireSocketPolicyFile)
System.Net.Sockets.Socket.Connect (System.Net.EndPoint remoteEP, Boolean requireSocketPolicy)
System.Net.Sockets.Socket.Connect (System.Net.EndPoint remoteEP)
System.Net.Sockets.UdpClient.DoConnect (System.Net.IPEndPoint endPoint)
System.Net.Sockets.UdpClient.Connect (System.Net.IPEndPoint endPoint)
安全

System.Net.Sockets.UdpClient.Connect (System.String hostname, Int32 port) 服務器

這印象太深入了，搞得我快吐血了，但這時終於搞定了，真欣慰。

以前我寫過一篇有關於www訪問web服務器的相同的問題，但那個稍微好解決一點，只要參考着官方文檔就能解決了，我在這以前也有解決過該類問題的博客，官方的文檔是：http://docs.unity3d.com/Documentation/Manual/SecuritySandbox.html，雖然全是英文，但學搞IT的看不了英文還真的很蛋疼，誰叫老美IT發達的呢，但願何時，互聯網上技術先進的博客或者論壇都是中文的，固然有點想固然了，若是真有那麼一天不知道是何時呢？！只能期待，下面迴歸正題。 dom

我建立的服務器是C#的控制檯程序，在項目工程文件裏面添加如下crossdomain.xml文件，而後打開843的端口，切記這個必須打開，否則就會報錯，客戶端是經過這個端口來查找配置文件的。而後在運行unity切換到web平臺就不會報錯了。 socket

怎麼打開843端口呢？工具

解決辦法：咱們在unity的安裝目錄下找到一個sockpol.exe的這個一個工具，具體路徑是在「...\Unity\Editor\Data\Tools\SocketPolicyServer「路徑下有sockpol.exe和它的源碼。若是你的服務器端是Windows平臺的話，直接Copy一個sockpol.exe到服務器端，在CMD中執行
sockpol.exe --all
便可爲服務器端配置好Security SandBox安全策略。測試

運行了以後咱們會看到Hit Return to stop the server，而後若是有一我的鏈接上的話就會提示 ui

incoming connection this

got policy request,sending response

若是作到這一步恭喜你能鏈接了。

測試地址：http://114.92.230.107/aspnet_client/system_web/chat/newchat.html

還有一個問題就是端口衍射的問題，要綁定外網IP和內網服務器的端口，否則的話外網仍是不能使用聊天功能的，只能看到頁面而已！

源碼之後有空再上傳，這時困了，睡覺覺！

源碼：

Server端：

ChatClient：

[csharp] view plain copy print ?

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections;
using System.Net.Sockets;
namespace TestServer
{
class ChatClient
{
public static Hashtable ALLClients = new Hashtable(); // 客戶列表
private TcpClient _client; // 客戶端實體
public string _clientIP; // 客戶端IP
private string _clientNick; // 客戶端暱稱
private byte[] data; // 消息數據
private bool ReceiveNick = true;
public ChatClient(TcpClient client)
{
this._client = client;
this._clientIP = client.Client.RemoteEndPoint.ToString();
// 把當前客戶端實例添加到客戶列表當中
ALLClients.Add(this._clientIP, this);
data = new byte[this._client.ReceiveBufferSize];
// 從服務端獲取消息
client.GetStream().BeginRead(data, 0, System.Convert.ToInt32(this._client.ReceiveBufferSize), ReceiveMessage, null);
}
// 從客戶端獲取消息
public void ReceiveMessage(IAsyncResult ar)
{
int bytesRead;
try
{
lock (this._client.GetStream())
{
bytesRead = this._client.GetStream().EndRead(ar);
}
if (bytesRead < 1)
{
ALLClients.Remove(this._clientIP);
Broadcast(this._clientNick + " has left the chat");
return;
}
else
{
string messageReceived = System.Text.Encoding.ASCII.GetString(data, 0, bytesRead);
if (ReceiveNick)
{
this._clientNick = messageReceived;
Broadcast(this._clientNick + " has joined the chat.");
//this.sendMessage("hello");
ReceiveNick = false;
}
else
{
Broadcast(this._clientNick + ">" + messageReceived);
}
}
lock (this._client.GetStream())
{
this._client.GetStream().BeginRead(data, 0, System.Convert.ToInt32(this._client.ReceiveBufferSize), ReceiveMessage, null);
}
}
catch (Exception ex)
{
ALLClients.Remove(this._clientIP);
Broadcast(this._clientNick + " has left the chat.");
}
}
// 向客戶端發送消息
public void sendMessage(string message)
{
try
{
System.Net.Sockets.NetworkStream ns;
lock (this._client.GetStream())
{
ns = this._client.GetStream();
}
// 對信息進行編碼
byte[] bytesToSend = System.Text.Encoding.ASCII.GetBytes(message);
ns.Write(bytesToSend, 0, bytesToSend.Length);
ns.Flush();
}
catch (Exception ex)
{
}
}
// 向客戶端廣播消息
public void Broadcast(string message)
{
Console.WriteLine(message);
foreach (DictionaryEntry c in ALLClients)
{
((ChatClient)(c.Value)).sendMessage(message + Environment.NewLine);
}
}
}
}

Program：

[csharp] view plain copy print ?

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Sockets;
using TestServer;
namespace ConsoleApplication1
{
class Program
{
//設置鏈接端口
const int portNo = 5001;
static void Main(string[] args)
{
// 初始化服務器IP
System.Net.IPAddress localAdd = System.Net.IPAddress.Parse("114.92.245.173");
// 建立TCP偵聽器
TcpListener listener = new TcpListener(localAdd, portNo);
//開始啓動監聽
listener.Start();
// 顯示服務器啓動信息
Console.WriteLine("Server is starting...\n");
// 循環接受客戶端的鏈接請求
while (true)
{
ChatClient user = new ChatClient(listener.AcceptTcpClient());
// 顯示鏈接客戶端的IP與端口
Console.WriteLine(user._clientIP + " is joined...\n");
}
}
}
}

Client端：

[csharp] view plain copy print ?

using UnityEngine;
using System.Collections;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;
using System.Net.Sockets;
public class ClientHandler : MonoBehaviour
{
//端口號
const int portNo = 50001;
private TcpClient _client; //當前socket客戶端
byte[] data;
// Use this for initialization
void Start()
{
}
// Update is called once per frame
void Update()
{
}
//名字
public string nickName = "";
//信息
public string message = "";
//要發送的消息
public string sendMsg = "";
void OnGUI()
{
//用戶名
nickName = GUI.TextField(new Rect(10, 10, 100, 20), nickName);
//聊天消息
message = GUI.TextArea(new Rect(10, 40, 300, 200), message);
//發送的消息
sendMsg = GUI.TextField(new Rect(10, 250, 210, 20), sendMsg);
if (GUI.Button(new Rect(120, 10, 150, 20), "填寫用戶名以後鏈接"))
{
//建立一個新的鏈接
this._client = new TcpClient();
this._client.Connect("114.92.245.173", portNo);
if(this._client.Connected)
{
Debug.Log("登錄成功");
}
//接受多大的字節數據
data = new byte[this._client.ReceiveBufferSize];
//發送用戶名
SendMessage(nickName);
this._client.GetStream().BeginRead(data, 0, System.Convert.ToInt32(this._client.ReceiveBufferSize), ReceiveMessage, null);
};
if (GUI.Button(new Rect(230, 250, 80, 20), "發送"))
{
SendMessage(sendMsg);
sendMsg = "";
};
}
//發送消息（ASCII碼）
public void SendMessage(string message)
{
try
{
//建立流
NetworkStream ns = this._client.GetStream();
byte[] data = System.Text.Encoding.ASCII.GetBytes(message);
ns.Write(data, 0, data.Length);
ns.Flush();
}
catch (Exception ex)
{
//MessageBox.Show(ex.ToString());
}
}
//接受消息
public void ReceiveMessage(IAsyncResult ar)
{
try
{
int bytesRead;
bytesRead = this._client.GetStream().EndRead(ar);
//若是沒有信息則返回
if (bytesRead < 1)
{
return;
}
else
{
Debug.Log(System.Text.Encoding.ASCII.GetString(data, 0, bytesRead));
//message是不斷的加的，而後顯示到中間的框中
message += System.Text.Encoding.ASCII.GetString(data, 0, bytesRead);
}
//開始讀取接收到的信息保存到data中
this._client.GetStream().BeginRead(data, 0, System.Convert.ToInt32(this._client.ReceiveBufferSize), ReceiveMessage, null);
}
catch (Exception ex)
{
}
}
}