Ajax的get/post请求服务器响应
Ajax的get/post方式http请求代码
1.服务器端响应AJAX的同步请求，添加一个类继承IhttpHandler接口
public class server:IHttpHandler
{
public server()
{ }
#region IHttpHandler 成员
bool IHttpHandler.IsReusable
{
get { return true; }
}
void IHttpHandler.ProcessRequest(HttpContext context)
{
//获取get请求方式提交的cardid参数
string id= context.Request["cardid"];
//设置客户端不缓存，每次都请求服务器
context.Response.CacheControl = "no-cache";
//返回的客户端信息
context.Response.Write(“测试通过！”);
//post请求方式的处理
//Stream se= context.Request.InputStream;
// StreamReader streamreader = new StreamReader(se);
// String str = streamreader.ReadToEnd();
// se.Close();
// streamreader.Close();
// context.Response.Write(str);
}
#endregion
}
Web.config 还要配置如下
2. 服务器端响应AJAX的异步请求，添加一个类继承IhttpAsyncHandler接口
public class server : IHttpAsyncHandler
{
public server()
{
//
//TODO: 在此处添加构造函数逻辑
//
}
public bool IsReusable { get { return false; } }
public IAsyncResult BeginProcessRequest(HttpContext context, AsyncCallback cb, Object extraData)
{
context.Response.Write("
Begin IsThreadPoolThread is " + Thread.CurrentThread.IsThreadPoolThread + "
\r\n");AsynchOperation asynch = new AsynchOperation(cb, context, extraData);
asynch.StartAsyncWork();
return asynch;
}
public void EndProcessRequest(IAsyncResult result)
{
}
public void ProcessRequest(HttpContext context)
{
throw new InvalidOperationException();
}
}
class AsynchOperation : IAsyncResult
{
private bool _completed;
private Object _state;
private AsyncCallback _callback;
private HttpContext _context;
bool IAsyncResult.IsCompleted { get { return _completed; } }
WaitHandle IAsyncResult.AsyncWaitHandle { get { return null; } }
Object IAsyncResult.AsyncState { get { return _state; } }
bool IAsyncResult.CompletedSynchronously { get { return false; } }
public AsynchOperation(AsyncCallback callback, HttpContext context, Object state)
{
_callback = callback;
_context = context;
_state = state;
_completed = false;
}
public void StartAsyncWork()
{
ThreadPool.QueueUserWorkItem(new WaitCallback(StartAsyncTask), null);
}
private void StartAsyncTask(Object workItemState)
{
_context.Response.Write("
Completion IsThreadPoolThread is " + Thread.CurrentThread.IsThreadPoolThread + "
\r\n");
_context.Response.Write("Hello World from Async Handler!");
_completed = true;
_callback(this);
}
}
参考文献：http://msdn.microsoft.com/zh-cn/library/system.web.httpcontext.aspx
http://msdn.microsoft.com/zh-cn/library/system.web.httpcontext.aspx