jquery收集页面参数生成xml，用于与server做数据交互

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　　　　http://www.cnblogs.com/king-xg/p/6382603.html
　　通过jquery来手机页面隐藏域或含有name属性的input标签值，生成XML字符串传送到服务器，可通过dom4j的xml解析技术进行参数获取
<!DOCTYPE html>

<html>

    <head>

        <meta charset="utf-8" />

        <script type="text/javascript" src="js/jquery-1.8.2.js" ></script>

        <title>页面参数收集插件</title>

        <script type="text/javascript">

            function clickBT(){

                var str = collect();

                $("#text").text(str);

            }

            function collect(){

                var head = '<?xml version="1.0" encoding="UTF-8"?>';

                var root = $("<root></root>");

                var arr = $(document).find(":input[type='hidden'][path],:text[path],:hidden[path],:password[path],input[path],span[path],textarea[path],select[path]");

                var xml = "";

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

                    if(i+ >= arr.length){

                        xml = splitArr($(arr[i]),root);

                        break;

                    }

                    splitArr($(arr[i]),root);

                }

                return (head+"<root>"+xml+"</root>");

            }

            function splitArr(obj,root){

                var path = obj.attr('path').toLowerCase();

                // 拆分path

                var paths = path.split("/");

                var reg = /\[[A-Za-z0-]+\]/;

                var pnode = root;

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

                    if(reg.test(paths[i])){

                        var tagName = paths[i].substring(,paths[i].indexOf('['));

                        var index_str = paths[i].substring(paths[i].indexOf('[')+,paths[i].indexOf(']'))

                        var index = parseInt(index_str);

                        // 存在[],多层次节点

                        // 判断是否存在该索引的节点

                        if(pnode.children(tagName).length < index+){

                            // 不存在该标签

                            var node = $("<"+tagName+">"+"</"+tagName+">");

                            pnode.append(node);

                            pnode = node;

                        }else{

                            // 存在该标签

                            pnode = pnode.children(tagName).eq(index);

                        }

                    }else{

                        // 不存在[]

                        // 判断是否存在该标签

                        if(pnode.children(paths[i]).length==){

                            pnode = pnode.children(paths[i]).eq();

                        }else{

                            // 打印错误

                            if(pnode.children(paths[i]).length>){

                                throw new Error("标签:"+paths[i]+"--存在多层次节点");

                                return null;

                            }

                            var node = $("<"+paths[i]+">"+"</"+paths[i]+">");

                            pnode.append(node);

                            // 初始化pnode

                            pnode = node;

                        }

                    }

                }

                //pnode.text("<![CDATA["+obj.val()+"]]>");

                pnode.text(obj.val());

                return root.html();

            }

        </script>

    </head>

    <body>

        <input type="hidden" path="project/persons/person[0]/name" value="king"/>

        <input type="hidden" path="project/persons/person[0]/age" value=""/>

        <input type="hidden" path="project/persons/person[1]/name" value="arise"/>

        <input type="hidden" path="project/persons/person[1]/age" value=""/>

        <input path="project/base_info/project_name" value="功能性项目"/>

        <input path="project/base_info/create_time" value="2017-02-07"/>

        <input type="text" path="project/base_info/money" value="" />

        <input type="text" value="xxx" />

        <textarea path="project/base_info/msg">king</textarea>

        <select id="sele" path="second_message/sec_msg">

            <option></option>

            <option></option>

            <option></option>

            <option></option>

        </select>

        <span path="message/text">it is only text!</span>

        <input path="project/books/book[0]/menu/section[0]" value="章节0"/>

        <input path="project/books/book[0]/menu/section[1]" value="章节1"/>

        <input path="project/books/book[1]/menu/section[0]" value="</section>"/>

        <input path="project/books/book[1]/menu/section[1]" value="章节1"/>

        <input path="project/books/book[2]/menu/section[0]" value="章/r/n节0"/>

        <input path="project/books/book[2]/menu/section[1]"/>

        <input path="project/books/book[2]/menu/section[2]" value="章节2"/>

        <input type="button" name="collection" value="collect" onclick="javascript:clickBT()" />

        <textarea id="text" style="width: 500px;height: 400px;"></textarea>

    </body>

</html>
若有不足之处，还望指出!
　　　　　　　　　　　　　　　　　　　