本篇文章给大家分享的内容是js实现xml到json的转化,有着一定的参考价值,有需要的朋友可以参考一下

<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>js瀹炵幇xml杞琷son</title> <style type="text/css"> html,body{width:100%;height:100%;margin:0;} </style> </head> <body> <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.js"></script> <script type="text/javascript"> // Converts XML to JSON // from: function XMLtoJSON() { var me = this; // stores the object instantce // gets the content of an xml file and returns it in me.fromFile = function(xml, rstr) { // Cretes a instantce of XMLHttpRequest object var xhttp = (window.XMLHttpRequest) ? new XMLHttpRequest() : new ActiveXObject("Microsoft.XMLHTTP"); // sets and sends the request for calling "xml" xhttp.open("GET", xml ,false); xhttp.send(null); // gets the JSON string var json_str = jsontoStr(setJsonObj(xhttp.responseXML)); // sets and returns the JSON object, if "rstr" undefined (not passed), else, returns JSON string return (typeof(rstr) == 'undefined') ? JSON.parse(json_str) : json_str; } // returns XML DOM from string with xml content me.fromStr = function(xml, rstr) { // for non IE browsers if(window.DOMParser) { var getxml = new DOMParser(); var xmlDoc = getxml.parseFromString(xml,"text/xml"); } else { // for Internet Explorer var xmlDoc = new ActiveXObject("Microsoft.XMLDOM"); xmlDoc.async = "false"; } // gets the JSON string var json_str = jsontoStr(setJsonObj(xmlDoc)); // sets and returns the JSON object, if "rstr" undefined (not passed), else, returns JSON string return (typeof(rstr) == 'undefined') ? JSON.parse(json_str) : json_str; } // receives XML DOM object, returns converted JSON object var setJsonObj = function(xml) { var js_obj = {}; if (xml.nodeType == 1) { if (xml.attributes.length > 0) { js_obj["@attributes"] = {}; for (var j = 0; j < xml.attributes.length; j++) { var attribute = xml.attributes.item(j); js_obj["@attributes"][attribute.nodeName] = attribute.value; } } } else if (xml.nodeType == 3) { js_obj = xml.nodeValue; } if (xml.hasChildNodes()) { for (var i = 0; i < xml.childNodes.length; i++) { var item = xml.childNodes.item(i); var nodeName = item.nodeName; if (typeof(js_obj[nodeName]) == "undefined") { js_obj[nodeName] = setJsonObj(item); } else { if (typeof(js_obj[nodeName].push) == "undefined") { var old = js_obj[nodeName]; js_obj[nodeName] = []; js_obj[nodeName].push(old); } js_obj[nodeName].push(setJsonObj(item)); } } } return js_obj; } // converts JSON object to string (human readablle). // Removes '\t\r\n', rows with multiples '""', multiple empty rows, ' "",', and " ",; replace empty [] with "" var jsontoStr = function(js_obj) { var rejsn = JSON.stringify(js_obj, undefined, 2).replace(/(\\t|\\r|\\n)/g, '').replace(/"",[\n\t\r\s]+""[,]*/g, '').replace(/(\n[\t\s\r]*\n)/g, '').replace(/[\s\t]{2,}""[,]{0,1}/g, '').replace(/"[\s\t]{1,}"[,]{0,1}/g, '').replace(/\[[\t\s]*\]/g, '""'); return (rejsn.indexOf('"parsererror": {') == -1) ? rejsn : 'Invalid XML format'; } }; // creates object instantce of XMLtoJSON var xml2json = new XMLtoJSON(); </script> <script type="text/javascript"> var xmlstr = `<alexa ver="0.9" url="" home="0" aid="="> <sd title="a" host="coursesweb.net"> <title>CoursesWeb: php, mysql, html, css, javascript, ajax, jquery, actionscript, flash</title> <linksin num="1102"/> <speed pct="51">4578</speed> </sd> <sd> <popularity>5777</popularity> <reach rank="5952"/> <rank url="">6667</rank> </sd> </alexa>`; // gets JSON object from a string with xml content var objson = xml2json.fromStr(xmlstr); console.log(objson); // gets JSON string from a string with xml content var strjson = xml2json.fromStr(xmlstr, 'string'); console.log(strjson); </script> </body> </html>

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