Javascript combined with ajax to read the content of txt file_javascript skills

The code is very concise, so there will be no more nonsense here, just go to the source code

html code

Copy code The code is as follows:

         


                                                                                                                                                                                                                       .                                      
                                                                                                    function show(){
Ajax('read.txt?datetime=new Date.getTime ',function(str){alert(str);},function(){alert('failed');})
            };
                                                                                         




javascript code

Copy code The code is as follows:

function Ajax(url,fnSucc,fnFaild)
                 {
//1. Create ajax object
If(window.XMLHttpRequest)
                                                                                                                                                                                                                                            {// code for IE7, Firefox, Chrome, Opera, Safari
                        var oAjax=new XMLHttpRequest();
                 }
Else                                                                                                                   {// code for IE6, IE5
                      var oAjax=new ActiveXObject("Microsoft.XMLHTTP");
                 }
//2. Link to the server (open the connection to the server)
//open(method, file name, asynchronous transmission)
                   oAjax.open('GET',url,true);
//3.Send
                  oAjax.send();
//4.Receive return
oAjax.onreadystatechange=function()
                                                       {
If (oAjax.readyState==4)
                                                               {
If(oAjax.status==200)
                                                                                                                                                                                                                                                                                                             through fnSucc(oAjax.responseText);
                                                                                                       }                                                      else                                                                                                                                                                                                                                                                                                    through fnFaild(oAjax.status);
                                                                                                       }                        };
                  };
              }



The requested file is read.txt

Fill in the content as you like