using System;
using System.Web;
using System.Text;
using System.Threading;
namespace WebTest
{
public class AutoCompleteHandler : IHttpHandler
{
//原文：http://www.cnblogs.com/woodyy/archive/2010/02/03/1662370.html
public void ProcessRequest(HttpContext context)
{
string keyWord = string.Empty;
if (!string.IsNullOrEmpty(context.Request["KeyWord"]))
{
keyWord = context.Request["KeyWord"].Trim();
ProcessRequest(context, keyWord);
}
}
private void ProcessRequest(HttpContext context, string keyWord)
{
try
{
context.Response.ClearContent();
context.Response.ContentType = ("text/xml;charset=UTF-8"); // 这里必须要设置，否则客户端接收不到这里写好的xml文件
context.Response.Cache.SetCacheability(HttpCacheability.NoCache); //没有缓存
string result = CreateXmlResult(keyWord);
context.Response.Write(result);
context.Response.Flush();
context.Response.End();
}
catch (ThreadAbortException ex)//这个异常不用处理
{
string err = ex.Message;
}
catch (Exception ex)
{
string err = ex.Message;
//Logger.WriteFileLog(ex, Config.logDir);
}
}
/// <summary>
/// 生成返回提示结果对应的xml文件(实际编程重点关注这里就可以了)
/// </summary>
/// <param name="keyWord">实际项目中，应该使用返回的结果集，如泛型集合等等</param>
/// <returns></returns>
private string CreateXmlResult(string keyWord)
{
StringBuilder sb = new StringBuilder(300);
sb.Append("<?xml version=\"1.0\" encoding=\"utf-8\" ?>");
sb.Append("<Results>");
for (int i = 0; i < 10; i++)
{
sb.AppendFormat("<KeyWord>{0}_{1}</KeyWord>", keyWord, i);
}
sb.Append("</Results>");
return sb.ToString().Trim();
}
public bool IsReusable
{
get
{
return false;
}
}
}
}