2012-08-08 58 views
0

我正在试用Google Maps API,并试图做一个准系统路线应用。表单调用calcRoute()函数,使用警报,我可以看到确实有有正确的'start'和'end'变量定义。但是,页面只需重新加载,表格已清除并且地图不变。对于我的生活,我无法弄清楚什么是错的。有人看到任何明显/可能导致问题的东西吗?谢谢!有人可以告诉我如何调试这个HTML表单/ JavaScript组合?

而且,显然我吸在计算器降价,所以这里的一个引擎收录链接:http://pastebin.com/BMThntPz

<!DOCTYPE html> 
<html lang="en"> 
    <head> 
    <!-- Google Maps script --> 
    <script type="text/javascript" <google maps api> </script> 
    <script type="text/javascript"> 
     var directionDisplay; 
     var directionsService = new google.maps.DirectionsService(); 
     var map; 

     function initialize() { 
     directionsDisplay = new google.maps.DirectionsRenderer(); 
     var philadelphia = new google.maps.LatLng(39.9522, -75.1642); 
     var mapOptions = { 
      center: philadelphia, 
      zoom: 7, 
      mapTypeId: google.maps.MapTypeId.ROADMAP, 
      disableDefaultUI: true, 
     }; 
     map = new google.maps.Map(document.getElementById('map_canvas'), mapOptions); 
     directionsDisplay.setMap(map); 
     } 

     function calcRoute() { 
     var start = document.getElementById('start').value;  
     var end = document.getElementById('end').value; 
     var request = { 
      origin:start, 
      destination:end, 
      travelMode: google.maps.DirectionsTravelMode.DRIVING, 
     }; 
     directionsService.route(request, function(response, status) { 
      if (status == google.maps.DirectionsStatus.OK) { 
      directionsDisplay.setDirections(response); 
      } 
     }); 
     } 
    </script> 
    </head> 

    <body onload="initialize()"> 
    <div class="container" style="height: 100%"> 
     <div> 
     <form class="form-horizontal" onsubmit="return calcRoute()"> 
      <input type="text" class="input-xlarge" id="start"> 
      <input type="text" class="input-xlarge" id="end"> 
     <input class="btn" type="submit" value="Let's go!"> 
     </form> <!-- /trip info --> 
    </div> 

    <div> 
     <div id="map_canvas" ></div> 
    </div> 

    </div> <!-- /container --> 
    </body> 
</html> 
+0

待办事项您是否启用了Firebug(Firefox)或Chrome开发者工具?如果你还没有使用过这些工具,那么学习它们是非常值得的(它们很容易学习)。 – 2012-08-08 03:51:09

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