public void ProcessRequest(HttpContext context)
{
//这里并未设置contextType,而是使用了默认的text格式
context.Response.ResponseBody =
Encoding.UTF8.GetBytes(string.Format("<html><body><h3>{0}</h3></body></ html>",DateTime.Now.ToString()));
context.Response.ResponseStatus = 200;
}
/// <summary>
/// 处理http上下文
/// </summary>
/// <param name="context"></param>
public void ProcessRequest(HttpContext context)
{
//获得文件扩展名
string ex = Path.GetExtension(context.Request.Url);
//获得exe文件的位置
string binPath = AppDomain.CurrentDomain.BaseDirectory;
//http报文url范例:/FirstWeb/FirstShower.ashx
string filePath=Path.Combine(binPath,context.Request.Url.TrimStart(new char[]{'/'}));
//处理动态页面
if (ex==".aspx")
{
string className=Path.GetFileNameWithoutExtension(filePath);
//加载当前项目程序集,因为整个项目的代码都在exe文件中,从该exe中反射出类,并实例化,调用接口方法
IHttpProcess demo =
Assembly.Load("SocketProgram").CreateInstance("SocketProgram.IISClass." + className) as IHttpProcess;
demo.ProcessRequest(context);
return;
}
//处理静态页面
//如果文件存在
if (File.Exists(filePath))
{
byte[] bodyByte=File.ReadAllBytes(filePath);
context.Response.ResponseBody = bodyByte;
context.Response.ResponseStatus = 200;
}
else//如果没有找到文件返回错误页面
{
//把要访问的页面改成错误页面的Url,保证获取到正确的ContextType
context.Request.Url = "/WebSite/404.htm";
string errorPagePath = Path.Combine(binPath, "WebSite\\404.htm");
byte[] errorBodyByte = File.ReadAllBytes(errorPagePath);
context.Response.ResponseBody = errorBodyByte;
context.Response.ResponseStatus = 404;
}
}
/// <summary>
/// 等待浏览器请求,连接一次就断开
/// </summary>
/// <param name="sokect">监听socket</param>
public void WaitForRequest(object sokect)
{
Socket listenSocket = sokect as Socket;
byte[] receiveData=new byte[2*1024*1024];
while (true)
{
//这里一直监听请求,但是浏览器可能会发送0字节请求,以表示断开连接
//但下面代码已经自动断开连接,所以0字节数据会当做普通请求处理,所以加个判断
Socket connectSocket=listenSocket.Accept();
int length=connectSocket.Receive(receiveData, receiveData.Length, SocketFlags.None);
if (length<=0)
{
continue;
}
//获取请求报文
string respondStr = Encoding.UTF8.GetString(receiveData, 0, length);
HttpContext context = new HttpContext(respondStr);
//把报文和连接信息显示在文本框
AppendTextToMsg(String.Format("{0}:连接成功", connectSocket.RemoteEndPoint.ToString()));
AppendTextToMsg(string.Format("接收客户端{0}的消息:{1}", connectSocket.RemoteEndPoint.ToString(), respondStr));
//处理报文
ProcessDemo1 process = new ProcessDemo1();
process.ProcessRequest(context);
//返回响应报文
connectSocket.Send(context.Response.GetResponseHead());
connectSocket.Send(context.Response.ResponseBody);
//关闭sockect
connectSocket.Shutdown(SocketShutdown.Both);
connectSocket.Close();
}
}