從XML文檔解析標記而不使用GXmlHttp

-1

我已經將大部分Google Maps演示從API的v2升級到v3。從XML文檔解析標記而不使用GXmlHttp

我有一個工作Handler.ashx從SQL Server數據，摘錄其中的如下返回的XML文件：

<root> 
 
<marker INSTITUTION_KEY="100433" Latitude="40.735772366619301" Longitude="-73.994402766599904" INSTITUTION="New School, The" STREET="65 5th Avenue, Room M107A" CITY="New York" STATE="New York" ZIP="10011" ZIP4="????" WEBSITE="www.newschool.edu"> 
 
<Awards AreaID="12" AWARD="N71131B511" WORLDAREA="Western Europe"/> 
 
<Awards AreaID="12" AWARD="N71131B511" WORLDAREA="Western Europe"/> 
 
</marker> 
 
<marker INSTITUTION_KEY="1022" Latitude="25.760174462957600" Longitude="-80.371959517777100" INSTITUTION="Florida International University" STREET="11220 SW 8TH ST" CITY="MIAMI" STATE="FL" ZIP="33184" ZIP4="0000" WEBSITE="www.fiu.edu"> 
 
<Awards AreaID="7" AWARD="F91131B511" WORLDAREA="Latin America"/> 
 
<Awards AreaID="7" AWARD="F91131B511" WORLDAREA="Latin America"/> 
 
</marker> 
 
</root>

我讀過GXmlHttp不再存在和我努力嘗試轉換此代碼段：

var request = GXmlHttp.create(); 
 
     request.open("GET", urlRequest, true); 
 
     request.onreadystatechange = function() { 
 
      if (request.readyState == 4) { 
 
       var xmlDoc = request.responseXML; 
 
       var markers = xmlDoc.documentElement.getElementsByTagName("marker"); 
 
       for (var i = 0; i < markers.length; i++) {

這是我迄今爲止得到了和我堅持：

//  Load the xml file using ajax 
 
    $.ajax({ 
 
     type: "GET", 
 
     async: true, 
 
     url: urlRequest, 
 
     dataType: "xml", 
 
     success: 
 
      function (xml) { 
 
       // Parse the xml file and get data 
 
       var xmlDoc = $.parseXML(xml); 
 
       var markers = xmlDoc.documentElement.getElementsByTagName("marker"); 
 
       for (var i = 0; i < markers.length; i++) {

Uncaught TypeError: Cannot read property 'documentElement' of null(…)

希望瞭解如何使這種轉變小費。我發現了一個錯誤：

Uncaught TypeError: Cannot read property 'documentElement' of null

在試圖創建一個數組稱爲標記從行與標記的節點。

來源

2016-11-15 John Adams

你並不需要調用$.parseXML在$.ajax調用的結果，當你設置dataType: xml

從the documentation：

"xml": Returns a XML document that can be processed via jQuery.

// Read the data 
$.ajax({ 
    type: "GET", 
    async: true, 
    url: urlRequest, 
    dataType: "xml", 
    success: 
    function (xml) { 
     // Parse the xml file and get data 
     var markers = xml.documentElement.getElementsByTagName("marker"); 
     for (var i = 0; i < markers.length; i++) {

proof of concept

來源

2016-11-16 00:20:34 geocodezip

從XML文檔解析標記而不使用GXmlHttp

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