Ajax通用函数

 

function Ajax_new(recvType,url,str,method,recvFunc){//recvType:格式 url：地址 method：方式 recvFunc：处理结果函式

       var aj = new Object();

       aj.result = '';

       aj.targetUrl = url+'?'+str;

       aj.sendString = '';

       aj.recvType = recvType ? recvType : 'HTML';//HTML XML

       aj.resultHandle = null;

       /*创建ajax组件*/

       aj.createXMLHttpRequest = function() {//create Ajax 组件

              var request = false;

              if(window.XMLHttpRequest) {

                     request = new XMLHttpRequest();

                     if(request.overrideMimeType) {//设置mime 类别

                            request.overrideMimeType('text/xml');

                     }

              } else if(window.ActiveXObject) {

                     var versions = ['Microsoft.XMLHTTP', 'MSXML.XMLHTTP', 'Microsoft.XMLHTTP', 'Msxml2.XMLHTTP.7.0', 'Msxml2.XMLHTTP.6.0', 'Msxml2.XMLHTTP.5.0', 'Msxml2.XMLHTTP.4.0', 'MSXML2.XMLHTTP.3.0', 'MSXML2.XMLHTTP'];

                     for(var i=0; i<versions.length; i++) {

                            try {

                                   request = new ActiveXObject(versions[i]);

                                   if(request) {

                                          return request;

                                   }

                            } catch(e) {

                                   //alert(e.message);

                            }

                     }

              }

              return request;

       }

       aj.XMLHttpRequest = aj.createXMLHttpRequest();

       /*数据处理*/

       if (method == 'get'){

              aj.XMLHttpRequest.onreadystatechange = function (){aj_test(aj,recvFunc);};

              if(window.XMLHttpRequest) {

                     aj.XMLHttpRequest.open('GET', aj.targetUrl, false);

                     aj.XMLHttpRequest.send(null);

              } else {

                     aj.XMLHttpRequest.open("GET", targetUrl, false);

                     aj.XMLHttpRequest.send();

              }

       }

       else{

             

       }

       return aj;

}

function aj_test(obj,recvFunc){//调用相应的结果处理

       if(obj.XMLHttpRequest.readyState == 4) {

              if(obj.XMLHttpRequest.status == 200) {

                     if(obj.recvType == 'HTML') {

                            recvFunc(obj.XMLHttpRequest.responseText);

                     } else if(obj.recvType == 'XML') {

                            recvFunc(obj.XMLHttpRequest.responseXML);

                     }

              }

       }

}

页面调用： Ajax_new('XML',url,str,'get',ajax_result1);

                     Function ajax_result1(obj){

                            。。。。。。。。。。。。。。处理

}