如何从谷歌地图地理编码json数据中读取城市，州，国家 [英] how to read city ,state,country from google map geocoding json data

问题描述

我正在使用.net MVC 3和Google Maps v3.我想在一个动作中进行地理编码.那是将有效地址传递给Google，并返回城市，州和国家/地区.您将如何在使用C#的操作中做到这一点?

I'm using .net MVC 3 and Google Maps v3. I'd like to do geocoding in an action. That is passing a valid address to Google and getting the city,state and country back. How would you do this in an action using C#?

    [HttpPost]
    public ActionResult getLocation(string pincode)
    {
        string url = "http://maps.googleapis.com/maps/api/geocode/json?
         sensor=true&address=";
        var data="";
        dynamic googleResults = new Uri(url + 
         pincode).GetDynamicJsonObject();
        foreach (var result in googleResults.results)
        {

            data= "[" + result.geometry.location.lat + "," + 
         result.geometry.location.lng + "] " + result.formatted_address;
        }
        return Json("Successful" + data, JsonRequestBehavior.AllowGet);
    }

这是我从google地理编码中获取的json数据，我想从其中读取来自address_components类型管理_area_level_2，administrative_area_level_1，国家/地区的城市，州和国家

this is json data which i am getting from google geocoding from which i wants to read city,state and country from address_components types administrative_area_level_2,administrative_area_level_1,country

{
   "results" : [
      {
         "address_components" : [
            {
               "long_name" : "411022",
               "short_name" : "411022",
               "types" : [ "postal_code" ]
            },
            {
               "long_name" : "SRPF",
               "short_name" : "SRPF",
               "types" : [ "political", "sublocality", "sublocality_level_2" ]
            },
            {
               "long_name" : "Wanowrie",
               "short_name" : "Wanowrie",
               "types" : [ "political", "sublocality", "sublocality_level_1" ]
            },
            {
               "long_name" : "Pune",
               "short_name" : "Pune",
               "types" : [ "locality", "political" ]
            },
            {
               "long_name" : "Pune",
               "short_name" : "Pune",
               "types" : [ "administrative_area_level_2", "political" ]
            },
            {
               "long_name" : "Maharashtra",
               "short_name" : "MH",
               "types" : [ "administrative_area_level_1", "political" ]
            },
            {
               "long_name" : "India",
               "short_name" : "IN",
               "types" : [ "country", "political" ]
            }
         ],
         "formatted_address" : "SRPF, Wanowrie, Pune, Maharashtra 411022, India",
         "geometry" : {
            "bounds" : {
               "northeast" : {
                  "lat" : 18.5065017,
                  "lng" : 73.9128001
               },
               "southwest" : {
                  "lat" : 18.4966367,
                  "lng" : 73.90290019999999
               }
            },
            "location" : {
               "lat" : 18.4986371,
               "lng" : 73.9074389
            },
            "location_type" : "APPROXIMATE",
            "viewport" : {
               "northeast" : {
                  "lat" : 18.5065017,
                  "lng" : 73.9128001
               },
               "southwest" : {
                  "lat" : 18.4966367,
                  "lng" : 73.90290019999999
               }
            }
         },
         "place_id" : "ChIJQ1UppdzBwjsRPIND-6yqBNI",
         "types" : [ "postal_code" ]
      }
   ],
   "status" : "OK"
}

推荐答案

I solved this problem by sending json data to client side like this
 var data = "";
            dynamic googleResults = new Uri(url + pincode).GetDynamicJsonObject();
            var status = googleResults.status;
            foreach (var result in googleResults.results)
            {
                              data += result;
            }
            return Json(data, "application/json",Encoding.UTF8, JsonRequestBehavior.AllowGet);


and then process this data in javascript ,code given below

 data = JSON.parse(result);

                for(var i=0;i<data.address_components.length;i++)
                {

                    if(data.address_components[i].types[0]=="administrative_area_level_2")
                    {
                        alert("City:" + data.address_components[i].long_name);
                        document.getElementById("pin_city").value = data.address_components[i].long_name;
                    }
                    if (data.address_components[i].types[0] == "administrative_area_level_1") {
                        alert("State:" + data.address_components[i].long_name);
                        document.getElementById("pin_state").value = data.address_components[i].long_name;
                    }
                    if (data.address_components[i].types[0] == "country") {
                        alert("Country:" + data.address_components[i].long_name);
                    }

                }

这篇关于如何从谷歌地图地理编码json数据中读取城市，州，国家的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！