Question

我正在尝试从XML文件或JSON文件中加载用于谷歌地图的坐标列表（我在本地测试服务器上都托管在同一目录中）。到目前为止，我已使用硬编码的JSON对象加载地图坐标进行测试。我的问题是，如何用我服务器上的XML / JSON文件替换伪/硬编码的JSON？这是我的代码：

  (function() {

  // Creating an array that will contain all of our product icons
  var productIcons = [];

  productIcons['bulletin'] = new google.maps.MarkerImage(
    'icons/Bulletin-sm.png', 
    new google.maps.Size(48, 48), 
    null, 
    new google.maps.Point(24, 24)
  );

  productIcons['bus'] = new google.maps.MarkerImage(
    'icons/busicon.png', 
    new google.maps.Size(48, 48), 
    null, 
    new google.maps.Point(24, 24)
  );

  productIcons['bench'] = new google.maps.MarkerImage(
    'icons/BusBench-sm.png', 
    new google.maps.Size(48, 48), 
    null, 
    new google.maps.Point(24, 24)
  );

  productIcons['junior'] = new google.maps.MarkerImage(
    'icons/JuniorPoster-sm.png', 
    new google.maps.Size(48, 48), 
    null, 
    new google.maps.Point(24, 24)
  );

  productIcons['poster'] = new google.maps.MarkerImage(
    'icons/Poster-sm.png', 
    new google.maps.Size(48, 48), 
    null, 
    new google.maps.Point(24, 24)
  );


  productIcons['shelter'] = new google.maps.MarkerImage(
    'icons/TransitShelter-sm.png', 
    new google.maps.Size(48, 48), 
    null, 
    new google.maps.Point(24, 24)
  );

  window.onload = function() {

    // Creating a map
    var options = {  
      zoom: 3,  
      center: new google.maps.LatLng(37.09, -95.71),  
      mapTypeId: google.maps.MapTypeId.ROADMAP  
    };  
    var map = new google.maps.Map(document.getElementById('map'), options);  


// Creating a JSON object with fake product data (to be replaced by XML or JSON)
var productData = {'product': [
{
'lat': 40.756054,
'lng': -119.986951,
'productType': 'junior'
},
{
'lat': 35.620973,
'lng': -121.347276,
'productType': 'shelter'
},
{
'lat': 40.620973,
'lng': -121.347276,
'productType': 'bus'
},
{
'lat': 39.120973,
'lng': -122.847276,
'productType': 'bench'
},
{
'lat': 35.920973,
'lng': -122.347276,
'productType': 'bulletin'
},
{
'lat': 37.775206,
'lng': -122.419209,
'productType': 'poster'
}
]};
// Looping through the product array in productData
for (var i = 0; i < productData.product.length; i++) {
// creating a variable that will hold the current product object
var product = productData.product[i];
// Creating marker
var marker = new google.maps.Marker({
position: new google.maps.LatLng(product.lat, product.lng),
map: map,
icon: productIcons[product.productType]
});

}
}
})();

Answer 1

我认为您可以在服务器上设置RESTFUL Web服务，然后使用jquery的ajax功能从中获取JSON内容。

ajax教程： Ajax tutorial for post and get

对于RESTFUL Web服务端，您可以探索许多技术。只需搜索“java restful web service tutorial”或“.NET WCF RESTFUL”

从本地服务器上的文件读取XML或JSON

1 个答案: