Update SrcJySet.js

SrcJySet.js

@@ -1,108 +1,75 @@
 //个人学习代码
 function SRCSet() {
     let xmlhtml = request('http://f2dcj6.com/sapi?ac=videolist&pg=1&t=3');
-
-    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);
+    
+    function getXmlDocumentByXmlString(xmlString) {
+        var xmlDoc = null;
+        if (window.DOMParser) {
+            var parser = new DOMParser();
+            xmlDoc = parser.parseFromString(xmlString, "text/xml");
+        } else {
+            //IE
+            xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
+            xmlDoc.async = "false";
+            xmlDoc.loadXML(xmlString);
         }
-        return doc;
+        return xmlDoc;
     }
 
-    //xml数据转成json对象的数据
-    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;
-                    }
+    function convertToJSON(xmlDoc) {
+        //准备JSON字符串和缓存（提升性能）
+        var jsonStr = "";
+        var buffer = new Array();
+
+        buffer.push("{");
+        //获取xml文档的所有子节点
+        var nodeList = xmlDoc.childNodes;
+
+        generate(nodeList);
+
+        /**
+         * 中间函数，用于递归解析xml文档对象，并附加到json字符串中
+         * @param node_list xml文档的的nodeList
+         */
+        function generate(node_list) {
+
+            for (var i = 0; i < node_list.length; i++) {
+                var curr_node = node_list[i];
+                //忽略子节点中的换行和空格
+                if (curr_node.nodeType == 3) {
+                    continue;
                 }
-                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;
+                //如果子节点还包括子节点，则继续进行遍历
+                if (curr_node.childNodes.length > 1) {
+                    buffer.push("\"" + curr_node.nodeName + "\": {");
+                    generate(curr_node.childNodes);
+                } else {
+                    var firstChild = curr_node.childNodes[0];
+
+                    if (firstChild != null) {
+                        //nodeValue不为null
+                        buffer.push("\"" + curr_node.nodeName + "\":\"" + firstChild.nodeValue + "\"");
+                    } else {
+                        //nodeValue为null
+                        buffer.push("\"" + curr_node.nodeName + "\":\"\"");
                     }
+
                 }
-           }else{
-                _itemobj = (node.textContent == undefined) ? node.text : node.textContent;
-           }
-           return _itemobj;
-        };
- 
-        if(nodename){
-            nodenames = nodename.split("/")
-        }
-        for(var i = 0;i < nodenames.length; i++){
-            obj = obj.find(nodenames[i]);
-        }
-        $(obj).each(function(key, item){
-            if(itemobj[item.nodeName] != undefined){
-                if(!(itemobj[item.nodeName] instanceof Array)){
-                    var a = itemobj[item.nodeName];
-                    itemobj[item.nodeName] = [a];
-                }
-                itemobj[item.nodeName].push(getAllAttrs(item));
-            }else{
-                if(nodenames.length > 0){
-                    itemobj[item.nodeName] = getAllAttrs(item);
-                }else{
-                    itemobj[item.firstChild.nodeName] = getAllAttrs(item.firstChild);
+                if (i < (node_list.length - 2)) {
+                    buffer.push(",");
+                } else {
+                    break;
                 }
             }
-        });
-
-        if(nodenames.length > 1){
-            itemobj = itemobj[nodenames[nodenames.length-1]];
+            //添加末尾的"}"
+            buffer.push("}");
         }
-        if(isarray && !(itemobj instanceof Array) && itemobj != undefined){
-            itemobj = [itemobj];
-        }
-        return itemobj;
+
+        jsonStr = buffer.join("");
+        return jsonStr;
     }
-    var xmlObj = loadXml(xmlhtml);
-    var jsonData = xmlTojson(xmlObj, 'userList/user', true);
-    log(jsonData)
-    
+    let xmljosn = convertToJSON(getXmlDocumentByXmlString(xmlhtml));
+    log(xmljosn);
 
 
     addListener("onClose", $.toString(() => {