/// <summary>
/// 批量计算多个起点到一个终点的距离
/// </summary>
/// <param name="orignLocation">起点，多个起点用|分隔</param>
/// <param name="destination">终点</param>
/// <param name="key"></param>
/// <param name="sk"></param>
/// <param name="type">计算的方式，0：直线距离；1：驾车距离</param>
/// <returns></returns>
public static List <string> CalcGroupDistance(string orignLocation, string destination, string key, string sk, string type = "0")
{
string url = "https://restapi.amap.com/v3/distance";
string sign = AKSNCaculater.GDCaculateSN(sk, new Dictionary <string, string>()
{
{ "destination", destination },
{ "key", key },
{ "origins", orignLocation },
{ "type", type }
});
string jsonResult = HTTPClientHelper.GetResponseByGet(new List <KeyValuePair <string, string> >()
{
new KeyValuePair <string, string>("destination", destination),
new KeyValuePair <string, string>("key", key),
new KeyValuePair <string, string>("origins", orignLocation),
new KeyValuePair <string, string>("type", type),
new KeyValuePair <string, string>("sig", sign),
}, url);
//解析JSON
JObject jo = (JObject)JsonConvert.DeserializeObject(jsonResult);
var code = jo.Properties().Where(p => p.Name == "status").Select(p => p.Value.ToString()).FirstOrDefault();
//请求成功
if (code == "1")
{
var distances = new List <string>();
string value = jo.Properties().Where(p => p.Name == "results").Select(p => p.Value.ToString()).FirstOrDefault();
JArray ja = (JArray)JsonConvert.DeserializeObject(value);
foreach (var item in ja)
{
distances.Add(item["distance"].ToString());
}
return(distances);
}
else //请求失败
{
return(null);
}
}
/// <summary>
/// 根据地名查询经纬度
/// </summary>
/// <param name="url">api地址</param>
/// <param name="key">申请的appKey</param>
/// <param name="sk">私钥</param>
/// <param name="address">查询的地址(省市区+具体地址)</param>
/// <param name="city">查询的城市</param>
/// <returns></returns>
public static string QueryGDLocationByName(string url, string key, string sk, string address, string city)
{
//计算数字签名
string sign = AKSNCaculater.GDCaculateSN(sk, new Dictionary <string, string>()
{
{ "address", address },
{ "city", city },
{ "key", key }
});
//发送请求
string jsonResult = HTTPClientHelper.GetResponseByGet(new List <KeyValuePair <string, string> >()
{
new KeyValuePair <string, string>("address", address),
new KeyValuePair <string, string>("city", city),
new KeyValuePair <string, string>("key", key),
new KeyValuePair <string, string>("sig", sign),
}, url);
//解析JSON
JObject jo = (JObject)JsonConvert.DeserializeObject(jsonResult);
//JObject jo = JObject.Parse(jsonResult);
var code = jo.Properties().Where(p => p.Name == "status").Select(p => p.Value.ToString()).FirstOrDefault();
//jo.Remove();
//请求成功
if (code == "1")
{
string value = jo.Properties().Where(p => p.Name == "geocodes").Select(p => p.Value.ToString()).FirstOrDefault();
JArray ja = (JArray)JsonConvert.DeserializeObject(value);
return(ja[0]["location"].ToString());
}
else //请求失败
{
return(null);
}
}
