4

我正在开发一个应用程序,该应用程序使用谷歌 API 来获取传输解决方案,以便在所需时间到达某个位置。

我调用 google API 的代码在“驾驶”和“步行”旅行模式下完美运行,但在“公交”和“骑自行车”的情况下,响应始终标记为“ZERO_RESULTS”状态,并且不计算任何路线。根据谷歌文档,这意味着在必须计算解决方案的国家/地区不提供过境和骑自行车。我尝试了几个国家,我总是得到相同的结果,我也尝试了概述中的谷歌示例(用于过境),但它不起作用。

我通过 HTTPS 请求传递的参数是:出发地、目的地、出行方式、到达时间。我尝试的第一件事是更改arrival_time,以防该值涉及过去或太遥远的未来,但它不起作用。

如果我没有通过“arrival_time”,则响应是完美的,但我不明白,因为在 Google 文档中,arrival_time 是 https 请求的一个可能参数,也适用于过境旅行模式。没有这个论点,这个请求对我的目标毫无用处。

奇怪的是,如果我通过“过境”(到达或离开时间),响应是这样的:

{
   "available_travel_modes" : [ "DRIVING", "WALKING" ],
   "geocoded_waypoints" : [
      {
         "geocoder_status" : "OK",
         "place_id" : "ChIJu46S-ZZhLxMROG5lkwZ3D7k",
         "types" : [ "locality", "political" ]
      },
      {
         "geocoder_status" : "OK",
         "place_id" : "ChIJ53USP0nBhkcRjQ50xhPN_zw",
         "types" : [ "locality", "political" ]
      }
   ],
   "routes" : [],
   "status" : "ZERO_RESULTS"
}

如果我通过“骑自行车”(所有其他参数不变):

{
   "available_travel_modes" : [ "DRIVING", "WALKING", "TRANSIT" ],
   "geocoded_waypoints" : [
      {
         "geocoder_status" : "OK",
         "place_id" : "ChIJu46S-ZZhLxMROG5lkwZ3D7k",
         "types" : [ "locality", "political" ]
      },
      {
         "geocoder_status" : "OK",
         "place_id" : "ChIJ53USP0nBhkcRjQ50xhPN_zw",
         "types" : [ "locality", "political" ]
      }
   ],
   "routes" : [],
   "status" : "ZERO_RESULTS"
}

所以在第二种情况下,API 说 TRANSIT 可用,这根本没有意义!

我使用的位置格式是地理坐标,以避免出现歧义。

希望我提供足够的信息以使您能够帮助我。

编辑:对不起,我认为我的帖子已经足够清楚了。我使用 Google Directions API:https ://developers.google.com/maps/documentation/directions/

我的问题是“过境”和“骑自行车”作为旅行模式,不是代码问题,但问题出现在 https 响应级别,即使在我获得的概述中可以找到“过境”的谷歌示例“ZERO_RESULTS”响应。这是示例的 URL:

https://maps.googleapis.com/maps/api/directions/json?origin=75+9th+Ave+New+York,+NY&destination=MetLife+Stadium+1+MetLife+Stadium+Dr+East+Rutherford,+NJ+07073&mode=transit&arrival_time=1391374800&key=YOUR_API_KEY

这是两个 URL,它让我得到了我上面复制的两个响应:with transit:

https://maps.googleapis.com/maps/api/directions/json?origin=Rome&destination=Milan&mode=transit&arrival_time=1513162800000&key=++API_KEY++

和骑自行车:

https://maps.googleapis.com/maps/api/directions/json?origin=Rome&destination=Milan&mode=transit&arrival_time=1513162800000&key=++API_KEY++

在我用于起点和目的地地理坐标的代码中,如下所示:

https://maps.googleapis.com/maps/api/directions/json?origin=41.9027835,12.496365500000024&destination=45.4642035,9.189981999999986&mode=transit&arrival_time=1513162800000&key=++API_KEY++

唯一的区别是谷歌不识别地理编码的航点:

{
   "available_travel_modes" : [ "DRIVING", "WALKING" ],
   "geocoded_waypoints" : [ {}, {} ],
   "routes" : [],
   "status" : "ZERO_RESULTS"
}

如果我使用“驾驶”作为旅行模式,这行得通:

https://maps.googleapis.com/maps/api/directions/json?origin=41.9027835,12.496365500000024&destination=45.4642035,9.189981999999986&mode=driving&arrival_time=1513162800000&key=++API_KEY++

{
   "geocoded_waypoints" : [
      {
         "geocoder_status" : "OK",
         "place_id" : "EjJQaWF6emEgZGVsbGEgUmVwdWJibGljYSwgMTAsIDAwMTg1IFJvbWEgUk0sIEl0YWxpYQ",
         "types" : [ "street_address" ]
      },
      {
         "geocoder_status" : "OK",
         "place_id" : "ChIJC5u9LazGhkcRXAZQFNDTpKc",
         "types" : [ "street_address" ]
      }
   ],
   "routes" : [
      {
         "bounds" : {
            "northeast" : {
               "lat" : 45.4731019,
               "lng" : 12.6177051
            },
            "southwest" : {
               "lat" : 41.9028523,
               "lng" : 9.1839517
            }
         },
         "copyrights" : "Dati mappa ©2017 Google",
         "legs" : [
            {
               "distance" : {
                  "text" : "573 km",
                  "value" : 572600
               },
               "duration" : {
                  "text" : "5 ore 51 min",
                  "value" : 21069
               },
               "end_address" : "Via Silvio Pellico, 2, 20121 Milano MI, Italia",
               "end_location" : {
                  "lat" : 45.46495119999999,
                  "lng" : 9.1892874
               },
               "start_address" : "Piazza della Repubblica, 10, 00185 Roma RM, Italia",
               "start_location" : {
                  "lat" : 41.9028523,
                  "lng" : 12.4964704
               },
               "steps" : [
                  {
                     "distance" : {
                        "text" : "93 m",
                        "value" : 93
                     },
                     "duration" : {
                        "text" : "1 min",
                        "value" : 19
                     },
                     "end_location" : {
                        "lat" : 41.9035781,
                        "lng" : 12.4959908
                     },
                     "html_instructions" : "Procedi in direzione \u003cb\u003enord\u003c/b\u003e da \u003cb\u003ePiazza della Repubblica\u003c/b\u003e verso \u003cb\u003eVia Giuseppe Romita\u003c/b\u003e",
                     "polyline" : {
                        "points" : "ycw~F}ugkAU?I@E@E@a@RG@EDED_@d@OP"
                     },
                     "start_location" : {
                        "lat" : 41.9028523,
                        "lng" : 12.4964704
                     },
                     "travel_mode" : "DRIVING"
                  },
                  // cut
                  {
                     "distance" : {
                        "text" : "52 m",
                        "value" : 52
                     },
                     "duration" : {
                        "text" : "1 min",
                        "value" : 14
                     },
                     "end_location" : {
                        "lat" : 45.4665738,
                        "lng" : 9.1889772
                     },
                     "html_instructions" : "Continua su \u003cb\u003eVia Santa Margherita\u003c/b\u003e",
                     "polyline" : {
                        "points" : "ogotGoxaw@`@`@j@h@"
                     },
                     "start_location" : {
                        "lat" : 45.4669622,
                        "lng" : 9.189359399999999
                     },
                     "travel_mode" : "DRIVING"
                  },
                  {
                     "distance" : {
                        "text" : "0,2 km",
                        "value" : 192
                     },
                     "duration" : {
                        "text" : "1 min",
                        "value" : 87
                     },
                     "end_location" : {
                        "lat" : 45.46495119999999,
                        "lng" : 9.1892874
                     },
                     "html_instructions" : "Svolta a \u003cb\u003esinistra\u003c/b\u003e e prendi \u003cb\u003eVia Silvio Pellico\u003c/b\u003e",
                     "maneuver" : "turn-left",
                     "polyline" : {
                        "points" : "aeotGcvaw@Xw@DCBAxC@~A?d@A"
                     },
                     "start_location" : {
                        "lat" : 45.4665738,
                        "lng" : 9.1889772
                     },
                     "travel_mode" : "DRIVING"
                  }
               ],
               "traffic_speed_entry" : [],
               "via_waypoint" : []
            }
         ],
         "overview_polyline" : {
            "points" : "//collapsed//"
         },
         "summary" : "A1/E35 e A1",
         "warnings" : [],
         "waypoint_order" : []
      }
   ],
   "status" : "OK"
}

如果我在没有到达时间的情况下使用“过境”,它会起作用:

 https://maps.googleapis.com/maps/api/directions/json?origin=41.9027835,12.496365500000024&destination=45.4642035,9.
189981999999986&mode=transit&key=++API_KEY++

和:

{
   "geocoded_waypoints" : [
      {
         "geocoder_status" : "OK",
         "place_id" : "EjJQaWF6emEgZGVsbGEgUmVwdWJibGljYSwgMTAsIDAwMTg1IFJvbWEgUk0sIEl0YWxpYQ",
         "types" : [ "street_address" ]
      },
      {
         "geocoder_status" : "OK",
         "place_id" : "ChIJRYxePKzGhkcRsgPwamn2Pfo",
         "types" : [ "street_address" ]
      }
   ],
   "routes" : [
      {
         "bounds" : {
            "northeast" : {
               "lat" : 45.4969308,
               "lng" : 12.5528041
            },
            "southwest" : {
               "lat" : 41.892252,
               "lng" : 9.188611
            }
         },
         "copyrights" : "Dati mappa ©2017 Google",
         "legs" : [
            {
               "arrival_time" : {
                  "text" : "13:55",
                  "time_zone" : "Europe/Rome",
                  "value" : 1513169733
               },
               "departure_time" : {
                  "text" : "10:10",
                  "time_zone" : "Europe/Rome",
                  "value" : 1513156231
               },
               "distance" : {
                  "text" : "571 km",
                  "value" : 571467
               },
               "duration" : {
                  "text" : "3 ore 45 min",
                  "value" : 13502
               },
               "end_address" : "Piazza del Duomo, 1, 20121 Milano MI, Italia",
               "end_location" : {
                  "lat" : 45.4639037,
                  "lng" : 9.188611
               },
               "start_address" : "Piazza della Repubblica, 10, 00185 Roma RM, Italia",
               "start_location" : {
                  "lat" : 41.9028429,
                  "lng" : 12.4964793
               },
               "steps" : [
                  {
                     "distance" : {
                        "text" : "0,1 km",
                        "value" : 102
                     },
                     "duration" : {
                        "text" : "1 min",
                        "value" : 87
                     },
                     "end_location" : {
                        "lat" : 41.902193,
                        "lng" : 12.4958041
                     },
                     "html_instructions" : "Cammina fino a Repubblica",
                     "polyline" : {
                        "points" : "wcw~F_vgkA@CBADABA@A@?B?D?B?B@B?B@BBB@@BBBDH@D@H@@?D?BDRBL?@DXBLBJDHBFVM"
                     },
                     "start_location" : {
                        "lat" : 41.9028429,
                        "lng" : 12.4964793
                     },
                     "steps" : [
                        {
                           "distance" : {
                              "text" : "54 m",
                              "value" : 54
                           },
                           "duration" : {
                              "text" : "1 min",
                              "value" : 49
                           },
                           "end_location" : {
                              "lat" : 41.9024775,
                              "lng" : 12.4962611
                           },
                           "html_instructions" : "Procedi in direzione \u003cb\u003esudest\u003c/b\u003e verso \u003cb\u003ePiazza della Repubblica\u003c/b\u003e",
                           "polyline" : {
                              "points" : "wcw~F_vgkA@CBADABA@A@?B?D?B?B@B?B@BBB@@BBBDH@D@H@@?D?B"
                           },
                           "start_location" : {
                              "lat" : 41.9028429,
                              "lng" : 12.4964793
                           },
                           "travel_mode" : "WALKING"
                        },
                        {
                           "distance" : {
                              "text" : "48 m",
                              "value" : 48
                           },
                           "duration" : {
                              "text" : "1 min",
                              "value" : 38
                           },
                           "end_location" : {
                              "lat" : 41.902193,
                              "lng" : 12.4958041
                           },
                           "html_instructions" : "Esci dalla rotonda e prendi \u003cb\u003ePiazza della Repubblica\u003c/b\u003e",
                           "polyline" : {
                              "points" : "oaw~FstgkADRBL?@DXBLBJDHBFVM"
                           },
                           "start_location" : {
                              "lat" : 41.9024775,
                              "lng" : 12.4962611
                           },
                           "travel_mode" : "WALKING"
                        }
                     ],
                     "travel_mode" : "WALKING"
                  },
                  {
                     "distance" : {
                        "text" : "0,4 km",
                        "value" : 437
                     },
                     "duration" : {
                        "text" : "1 min",
                        "value" : 46
                     },
                     "end_location" : {
                        "lat" : 41.9011732,
                        "lng" : 12.4996019
                     },
                     "html_instructions" : "Metropolitana verso Anagnina",
                     "polyline" : {
                        "points" : "u_w~FwqgkAeBIBoA@I|ByM~CmELR"
                     },
                     "start_location" : {
                        "lat" : 41.902193,
                        "lng" : 12.4958041
                     },
                     "transit_details" : {
                        "arrival_stop" : {
                           "location" : {
                              "lat" : 41.9011732,
                              "lng" : 12.4996019
                           },
                           "name" : "Termini"
                        },
                        "arrival_time" : {
                           "text" : "10:12",
                           "time_zone" : "Europe/Rome",
                           "value" : 1513156353
                        },
                        "departure_stop" : {
                           "location" : {
                              "lat" : 41.902193,
                              "lng" : 12.4958041
                           },
                           "name" : "Repubblica"
                        },
                        "departure_time" : {
                           "text" : "10:11",
                           "time_zone" : "Europe/Rome",
                           "value" : 1513156307
                        },
                        "headsign" : "Anagnina",
                        "line" : {
                           "agencies" : [
                              {
                                 "name" : "Atac",
                                 "phone" : "011 39 06 57003",
                                 "url" : "http://www.atac.roma.it/"
                              }
                           ],
                           "color" : "#e27439",
                           "name" : "Metro A",
                           "short_name" : "MEA",
                           "url" : "http://muovi.roma.it/percorso/js?query=MEA&cl=1",
                           "vehicle" : {
                              "icon" : "//maps.gstatic.com/mapfiles/transit/iw2/6/subway2.png",
                              "local_icon" : "//maps.gstatic.com/mapfiles/transit/iw2/6/it-metro.png",
                              "name" : "Metropolitana",
                              "type" : "SUBWAY"
                           }
                        },
                        "num_stops" : 1
                     },
                     "travel_mode" : "TRANSIT"
                  },

                  {
                     "distance" : {
                        "text" : "2,6 km",
                        "value" : 2641
                     },
                     "duration" : {
                        "text" : "6 min",
                        "value" : 330
                     },
                     "end_location" : {
                        "lat" : 45.4639037,
                        "lng" : 9.188611
                     },
                     "html_instructions" : "Metropolitana verso San Donato",
                     "polyline" : {
                        "points" : "//collapsed//"
                     },
                     "start_location" : {
                        "lat" : 45.4844397,
                        "lng" : 9.202612799999999
                     },
                     "transit_details" : {
                        "arrival_stop" : {
                           "location" : {
                              "lat" : 45.4639037,
                              "lng" : 9.188611
                           },
                           "name" : "Duomo"
                        },
                        "arrival_time" : {
                           "text" : "13:55",
                           "time_zone" : "Europe/Rome",
                           "value" : 1513169730
                        },
                        "departure_stop" : {
                           "location" : {
                              "lat" : 45.4844397,
                              "lng" : 9.202612799999999
                           },
                           "name" : "Centrale FS"
                        },
                        "departure_time" : {
                           "text" : "13:50",
                           "time_zone" : "Europe/Rome",
                           "value" : 1513169400
                        },
                        "headsign" : "San Donato",
                        "line" : {
                           "agencies" : [
                              {
                                 "name" : "COMUNE DI MILANO",
                                 "phone" : "011 39 02 0202",
                                 "url" : "http://www.muoversi.milano.it/"
                              }
                           ],
                           "color" : "#ffea00",
                           "name" : "M3 - Linea Gialla",
                           "short_name" : "3",
                           "vehicle" : {
                              "icon" : "//maps.gstatic.com/mapfiles/transit/iw2/6/subway2.png",
                              "local_icon" : "//maps.gstatic.com/mapfiles/transit/iw2/6/it-metro.png",
                              "name" : "Metropolitana",
                              "type" : "SUBWAY"
                           }
                        },
                        "num_stops" : 4
                     },
                     "travel_mode" : "TRANSIT"
                  }
               ],
               "traffic_speed_entry" : [],
               "via_waypoint" : []
            }
         ],
         "overview_polyline" : {
            "points" : "//collapsed//"
         },
         "summary" : "",
         "warnings" : [
            "Le indicazioni per tragitti a piedi sono in versione beta. Presta attenzione – questo percorso potrebbe non disporre di marciapiede o aree pedonali."
         ],
         "waypoint_order" : []
      }
   ],
   "status" : "OK"
}
4

1 回答 1

4

您的请求中的问题是您作为arrival_time参数传递的值。请注意,此值必须以秒为单位:

到达时间 - 指定公交路线的所需到达时间,以UTC 1970 年 1 月 1 日午夜后的秒数为单位。您可以指定离开时间或到达时间,但不能同时指定两者。请注意,arrival_time 必须指定为整数。

https://developers.google.com/maps/documentation/directions/intro#DirectionsRequests

您正在传递1513162800000对应于03/22/49920 @ 8:00am (UTC)的毫秒,正确的值是1513162800对应于12/13/2017 @ 11:00am (UTC)

请求应该是:

https://maps.googleapis.com/maps/api/directions/json?origin=41.9027835%2C12.496365500000024&destination=45.4642035%2C9.189981999999986&mode=transit&arrival_time=1513162800&key=YOUR_API_KEY

方向计算器中的相同请求:

https://directionsdebug.firebaseapp.com/?origin=41.9027835%2C12.496365500000024&destination=45.4642035%2C9.189981999999986&mode=transit&arrival_time=1513162800

我希望这有帮助!

于 2017-12-14T13:18:13.030 回答