Jquery 请求ashx

 做了一个文章列表,要实现增删改查功能,以前常用用ajax方法中的(ajaxpro),jquery也行,那就用jquery吧,小试一下牛刀

以前做数据删除的时候都有去aspx页请求的,后来知道用ashx会更快些,以下是方法

jquery方法

 

代码

function buildxml()
     {
      
             $.ajax({
                type:  " get " ,
                url:  " /db/AjaxHelp.ashx " ,
                data: ' buildxml=1 ' ,
                beforeSend: function(XMLHttpRequest){             
                  
                  
                     // ShowLoading();
                },
                success: function(data, textStatus){               
                  alert( ' OK ' ); alert(data);
                },
                complete: function(XMLHttpRequest, textStatus){
                     // HideLoading();
                },
                error: function(){
                    alert( ' error ' );
                }
                    });

 

 

 

 

以下是ashx方法

代码

   public   void  ProcessRequest(HttpContext context)
        {
            context.Response.ContentType  =   " text/plain " ;
            //  context.Response.Write("Hello World");
             string  buildxml  = context.Request.QueryString[ " buildxml " ].ToString();
             if  (buildxml  ==   " 1 " )
            {
                 if  (CreateXML())
                {
                    context.Response.Write( " 生成成功! " );
                }
                 else
                {
                    context.Response.Write( " 生成失败! " );
                }
            }
        }



         private   bool  CreateXML()
        {
             try
            {

                DB.DBHelperDataContext bll  =   new  DBHelperDataContext();
                var q  =  (from s  in  bll.IndexNews
                          where  s.Types == 1
                         orderby s.ID descending
                         select  new {s.ID,s.Title}).Take( 3 );
               

                 string  topNews  =  System.Configuration.ConfigurationManager.AppSettings[ " topNews " ].ToString();

               //   DataSet ds = SqlHelper.ExecuteDataset(SqlHelper.SSCSConnectString, CommandType.Text, sqlStr);




                 int  i = 0 ;

                foreach (var m  in  q)
               {
                  
                    string  id  =  m.ID.ToString();
                    string  name  =  m.Title.Length > 18 ? m.Title.Substring( 0 , 18 ):m.Title;
                  
                     if  (i  ==   0 )
                    {
                        XmlParameter[] param  =  {  new  XmlParameter( " id " , id),  new  XmlParameter( " name " , name) };
                        XMLHelper.CreateXMLFile(topNews,  new  XmlParameter( " books " ),  " chapter " , param);
                    }
                     else
                    {
                        XmlParameter[] aparam  =  {  new  XmlParameter( " id " , id),  new  XmlParameter( " name " , name) };
                        XMLHelper.AddNewNode(topNews,  " books " , aparam);

                    }
                    i ++ ;
                }
             
            }
             catch  (Exception ex) { PageHelper.Alert(ex.ToString());  return   false ; }
             return   true ;

        }