JQuery xml2Json/text2xml

裴哲
2023-12-01

此代码 官方网站:http://www.fyneworks.com/jquery/xml-to-json/

不知道怎么添加附加,只好把 源代码贴出来:

自定义载入xml函数

function loadXMLDoc(dname) {
    try //Internet Explorer
{
        xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
    }
    catch (e) {
        try //ff, Mozilla, Opera, etc.
  {
            xmlDoc = document.implementation.createDocument("", "", null);
        }
        catch (e) { alert(e.message) }
    }
    try {
        xmlDoc.async = false;
        xmlDoc.load(dname);
        return (xmlDoc);
    }
    catch (e) { alert(e.message) }
    return (null);
}

 

//获取xmlDocument

  var xmlDoc = loadXMLDoc("f1.xml"); // 参数是 xml文件地址

var json = $.xml2json(xmlDoc); // firebug查看 json,即可看到 转换后的结果. xml2json函数在下方定义,http://www.fyneworks.com/jquery/xml-to-json/提供!

 

if(window.jQuery) (function($){
 
// Add function to jQuery namespace
$.extend({
 
  // converts xml documents and xml text to json object
  xml2json: function(xml, extended) {
   if(!xml) return {}; // quick fail
  
   //### PARSER LIBRARY
   // Core function
   function parseXML(node, simple){
    if(!node) return null;
    var txt = '', obj = null, att = null;
    var nt = node.nodeType, nn = jsVar(node.localName || node.nodeName);
    var nv = node.text || node.nodeValue || '';
    /*DBG*/ //if(window.console) console.log(['x2j',nn,nt,nv.length+' bytes']);
    if(node.childNodes){
     if(node.childNodes.length>0){
      /*DBG*/ //if(window.console) console.log(['x2j',nn,'CHILDREN',node.childNodes]);
      $.each(node.childNodes, function(n,cn){
       var cnt = cn.nodeType, cnn = jsVar(cn.localName || cn.nodeName);
       var cnv = cn.text || cn.nodeValue || '';
       /*DBG*/ //if(window.console) console.log(['x2j',nn,'node>a',cnn,cnt,cnv]);
       if(cnt == 8){
        /*DBG*/ //if(window.console) console.log(['x2j',nn,'node>b',cnn,'COMMENT (ignore)']);
        return; // ignore comment node
       }
       else if(cnt == 3 || cnt == 4 || !cnn){
        // ignore white-space in between tags
        if(cnv.match(/^\s+$/)){
         /*DBG*/ //if(window.console) console.log(['x2j',nn,'node>c',cnn,'WHITE-SPACE (ignore)']);
         return;
        };
        /*DBG*/ //if(window.console) console.log(['x2j',nn,'node>d',cnn,'TEXT']);
        txt += cnv.replace(/^\s+/,'').replace(/\s+$/,'');
                                // make sure we ditch trailing spaces from markup
       }
       else{
        /*DBG*/ //if(window.console) console.log(['x2j',nn,'node>e',cnn,'OBJECT']);
        obj = obj || {};
        if(obj[cnn]){
         /*DBG*/ //if(window.console) console.log(['x2j',nn,'node>f',cnn,'ARRAY']);
        
                                    // http://forum.jquery.com/topic/jquery-jquery-xml2json-problems-when-siblings-of-the-same-tagname-only-have-a-textnode-as-a-child
                                    if(!obj[cnn].length) obj[cnn] = myArr(obj[cnn]);
                                    obj[cnn] = myArr(obj[cnn]);
        
                                    obj[cnn][ obj[cnn].length ] = parseXML(cn, true/* simple */);
         obj[cnn].length = obj[cnn].length;
        }
        else{
         /*DBG*/ //if(window.console) console.log(['x2j',nn,'node>g',cnn,'dig deeper...']);
         obj[cnn] = parseXML(cn);
        };
       };
      });
     };//node.childNodes.length>0
    };//node.childNodes
    if(node.attributes){
     if(node.attributes.length>0){
      /*DBG*/ //if(window.console) console.log(['x2j',nn,'ATTRIBUTES',node.attributes])
      att = {}; obj = obj || {};
      $.each(node.attributes, function(a,at){
       var atn = jsVar(at.name), atv = at.value;
       att[atn] = atv;
       if(obj[atn]){
        /*DBG*/ //if(window.console) console.log(['x2j',nn,'attr>',atn,'ARRAY']);
       
                                // http://forum.jquery.com/topic/jquery-jquery-xml2json-problems-when-siblings-of-the-same-tagname-only-have-a-textnode-as-a-child
                                //if(!obj[atn].length) obj[atn] = myArr(obj[atn]);//[ obj[ atn ] ];
        obj[cnn] = myArr(obj[cnn]);
                               
                                obj[atn][ obj[atn].length ] = atv;
        obj[atn].length = obj[atn].length;
       }
       else{
        /*DBG*/ //if(window.console) console.log(['x2j',nn,'attr>',atn,'TEXT']);
        obj[atn] = atv;
       };
      });
      //obj['attributes'] = att;
     };//node.attributes.length>0
    };//node.attributes
    if(obj){
     obj = $.extend( (txt!='' ? new String(txt) : {}),/* {text:txt},*/ obj || {}/*, att || {}*/);
     txt = (obj.text) ? (typeof(obj.text)=='object' ? obj.text : [obj.text || '']).concat([txt]) : txt;
     if(txt) obj.text = txt;
     txt = '';
    };
    var out = obj || txt;
    //console.log([extended, simple, out]);
    if(extended){
     if(txt) out = {};//new String(out);
     txt = out.text || txt || '';
     if(txt) out.text = txt;
     if(!simple) out = myArr(out);
    };
    return out;
   };// parseXML
   // Core Function End
   // Utility functions
   var jsVar = function(s){ return String(s || '').replace(/-/g,"_"); };
  
            // NEW isNum function: 01/09/2010
            // Thanks to Emile Grau, GigaTecnologies S.L., www.gigatransfer.com, www.mygigamail.com
            function isNum(s){
                // based on utility function isNum from xml2json plugin (http://www.fyneworks.com/ - diego@fyneworks.com)
                // few bugs corrected from original function :
                // - syntax error : regexp.test(string) instead of string.test(reg)
                // - regexp modified to accept  comma as decimal mark (latin syntax : 25,24 )
                // - regexp modified to reject if no number before decimal mark  : ".7" is not accepted
                // - string is "trimmed", allowing to accept space at the beginning and end of string
                var regexp=/^((-)?([0-9]+)(([\.\,]{0,1})([0-9]+))?$)/
                return (typeof s == "number") || regexp.test(String((s && typeof s == "string") ? jQuery.trim(s) : ''));
            };
            // OLD isNum function: (for reference only)
            //var isNum = function(s){ return (typeof s == "number") || String((s && typeof s == "string") ? s : '').test(/^((-)?([0-9]*)((\.{0,1})([0-9]+))?$)/); };
                                                               
   var myArr = function(o){
   
                // http://forum.jquery.com/topic/jquery-jquery-xml2json-problems-when-siblings-of-the-same-tagname-only-have-a-textnode-as-a-child
                //if(!o.length) o = [ o ]; o.length=o.length;
    if(!$.isArray(o)) o = [ o ]; o.length=o.length;
               
                // here is where you can attach additional functionality, such as searching and sorting...
    return o;
   };
   // Utility functions End
   //### PARSER LIBRARY END
  
   // Convert plain text to xml
   if(typeof xml=='string') xml = $.text2xml(xml);
  
   // Quick fail if not xml (or if this is a node)
   if(!xml.nodeType) return;
   if(xml.nodeType == 3 || xml.nodeType == 4) return xml.nodeValue;
  
   // Find xml root node
   var root = (xml.nodeType == 9) ? xml.documentElement : xml;
  
   // Convert xml to json
   var out = parseXML(root, true /* simple */);
  
   // Clean-up memory
   xml = null; root = null;
  
   // Send output
   return out;
  },
 
  // Convert text to XML DOM
  text2xml: function(str) {
   // NOTE: I'd like to use jQuery for this, but jQuery makes all tags uppercase
   //return $(xml)[0];
   var out;
   try{
    var xml = ($.browser.msie)?new ActiveXObject("Microsoft.XMLDOM"):new DOMParser();
    xml.async = false;
   }catch(e){ throw new Error("XML Parser could not be instantiated") };
   try{
    if($.browser.msie) out = (xml.loadXML(str))?xml:false;
    else out = xml.parseFromString(str, "text/xml");
   }catch(e){ throw new Error("Error parsing XML string") };
   return out;
  }
       
}); // extend $

})(jQuery);

转载于:https://www.cnblogs.com/Mr-Joe/archive/2012/03/22/2411625.html

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