xml字符串转xml对象：

 

function loadXml(str) {  if (str == null) {   return null;  }  var doc = str;  try{   doc = createXMLDOM();   doc.async = false;   doc.loadXML(str);  }catch(e){   doc = $.parseXML(str);  }  return doc;}

 

/***xml对象转json对象*xmlObj:xml对象*nodename:节点路径('ROOT/ITEM')*isarray:true,强制返回数组对象**/function xmltojson(xmlObj,nodename,isarray){   var obj=$(xmlObj);   var itemobj={};   var nodenames="";   var getAllAttrs=function(node){
   //递归解析xml 转换成json对象      var _itemobj={};      var notNull=false;      var nodechilds=node.childNodes;      var childlenght=nodechilds.length;      var _attrs=node.attributes;      var firstnodeName="#text";      try{        firstnodeName=nodechilds[0].nodeName;      }catch(e){}      if((childlenght>0&&firstnodeName!="#text")||_attrs.length>0){         var _childs=nodechilds;         var _childslength=nodechilds.length;         var _fileName_="";         if(undefined!=_attrs){           var _attrslength=_attrs.length;           for(var i=0; i<_attrslength; i++){
   //解析xml节点属性            var attrname=_attrs[i].nodeName;            var attrvalue=_attrs[i].nodeValue;            _itemobj[attrname]=attrvalue;           }         }       for (var j = 0; j < _childslength; j++) {
   //解析xml子节点          var _node = _childs[j];          var _fildName = _node.nodeName;          if("#text"==_fildName){
   break;};          if(_itemobj[_fildName]!=undefined){
   //如果有重复的节点需要转为数组格式            if(!(_itemobj[_fildName] instanceof Array)){              var a=_itemobj[_fildName];              _itemobj[_fildName]=[a];//如果该节点出现大于一个的情况 把第一个的值存放到数组中            }          }          var _fildValue=getAllAttrs(_node);          try{            _itemobj[_fildName].push(_fildValue);          }catch(e){            _itemobj[_fildName]=_fildValue;            _itemobj["length"]=1;          }         }      }else{        _itemobj=(node.textContent==undefined)?node.text:node.textContent;      }      return _itemobj;    };   if(nodename){    nodenames=nodename.split("/")   }   for(var i=0;i
     
      0){         itemobj[item.nodeName]=getAllAttrs(item);       }else{         itemobj[item.firstChild.nodeName]=getAllAttrs(item.firstChild);       }     }   });   if(nodenames.length>1){     itemobj=itemobj[nodenames[nodenames.length-1]];   }   if(isarray&&!(itemobj instanceof Array)&&itemobj!=undefined){     itemobj=[itemobj];   }  return itemobj;};
     

使用方法:

var xmlstr="
     
      " +        "
      
       " +        "
       
        张三
       " +        "
       
        00001
       " +        "
      " +        "
      
       " +        "
       
        李四
       " +        "
       
        00002
       " +        "
      " +        "
      
       " +        "
       
        李四
       " +        "
       
        00002
       " +        "
      " +        "
     ";var xmlobj=loadXml(xmlstr);

 

xmltojson(xmlobj);//返回结果如下

{  "USERS": {    "USER": [      {        "state": "0",        "USERNAME": {          "type": "String"        },        "length": 1,        "USERID": {          "type": "String"        }      },      {        "state": "1",        "USERNAME": {          "type": "String",          "size": "100"        },        "length": 1,        "USERID": "00002"      },      {        "USERNAME": "李四",        "length": 1,        "USERID": "00002"      }    ],    "length": 1  }}

(2)xmltojson(xmlobj,'USERS/USER',true);返回结果如下:

 

[  {   "state": "0",   "USERNAME": {     "type": "String"   },   "length": 1,   "USERID": {     "type": "String"   }  },  {   "state": "1",   "USERNAME": {     "type": "String",     "size": "100"   },   "length": 1,   "USERID": "00002"  },  {   "USERNAME": "李四",   "length": 1,   "USERID": "00002"  }]

PS：这里再为大家提供几款关于xml操作的在线工具供大家参考使用：

在线XML/JSON互相转换工具：

在线格式化XML/在线压缩XML：

XML在线压缩/格式化工具：

XML代码在线格式化美化工具：