VAR newString = JSON.stringify(directions);
    //set up area to place drop directionsResponse object string
    var directions_response_panel = document.getElementById("directions_response");
    //dump any contents in directions_response_panel
    directions_response_panel.innerHTML = "";
    //add JSON string to IT 
    directions_response_panel.innerHTML = "<PRe>" + newString + "</pre>";
    //run the ajax
    runAjax(directions);

我一直在做类似的事情,发现这真的很难,但经过几个小时的努力,我设法从User-Dragged路线获取所有航路点并将其保存到数据库中.

所以,我有一个字段,用于以“;”分隔所有路点.

你必须有这个：

directionsDisplay = new google.maps.DirectionsRenderer({
    'map': map,'preserveViewport': true,'draggable': true
});

在你的初始化功能

这是我的JS的一部分：

var currentDirections;
var directionsDisplay;
var waypoints = [];
    function saveWaypoints()
    {
        waypoints = [];
        var waypts_field = document.getElementById('waypoints').value.split(';');
        for(var bo = 0; bo < waypts_field.length; bo++)
        {
            if(waypts_field[bo] == ' ' || waypts_field[bo] == '')
            {
                waypts_field.splice(bo,1);
                bo -= 1;
                continue;
            }

            waypoints.push({ location: waypts_field[bo],stopover: false });
        }
    }


    function getWaypoints()
{
    currentDirections = directionsDisplay.getDirections();
    var route = currentDirections.routes[0];
    totalLegs = route.legs.length;
    for (var i = 0; i < route.legs.length; i++) {
        var routeSegment = i+1;
        if(route.legs[i].via_waypoint[0] === undefined) continue;

        document.getElementById('waypoints').value = '';
        var via_waypoint_count = route.legs[i].via_waypoint.length;
        queue = 0;
        for(var bi = 0; bi < via_waypoint_count; bi++)
        {
            var count = 0;

            var lat;
            var lng;

            for (key in route.legs[i].via_waypoint[bi]['location'])
            {
                if(count > 1) break;
                if(count == 0)
                {
                    lat = route.legs[i].via_waypoint[bi]['location'][key];
                    count++;
                    continue;
                }
                lng = route.legs[i].via_waypoint[bi]['location'][key];

                count++;
            }
            reverseGeoCode(new google.maps.LatLng(lat,lng));
        }
    }
}

        function reverseGeoCode(latlng)
    {
        queue += 60;
        setTimeout(function(){
        geocoder.geocode({ 'latLng': latlng },function(results,status) {
          if (status == google.maps.GeocoderStatus.OK) {
            if (results[1]) {
              document.getElementById('waypoints').value += results[1].formatted_address + '; ';
            }
          } else {
            alert("Geocoder Failed due to: " + status);
          }
        });
        },queue * 10);
    }

我很快把它从我的JS中删除了,所以如果它没有意义,我会发布我的所有JS并一点一点解释它..

谢谢