google 地图 javascript 正在获取路线但不是 json api
google maps javascript is fetching the route but not the json api
我偶然发现了这个：当我使用 directionsDisplay.getDirections() API 来获取和显示结果时，它有效，但是当我通过 json:
https://maps.googleapis.com/maps/api/directions/json?origin=place_id:ChIJR0FT51wiDogRNuVKiLn9ZLA&destination=place_id:ChIJMWaiY0YpTIYRRdGvCMg7m0g&key=MY_KEY&waypoints=via:place_id:ChIJaWS37r88DIgRu-ak1l7eXAQ
我得到"status" : "ZERO_RESULTS"
我想知道为什么会这样？有什么想法吗？
从 waypoints 中删除“via:”关键字以获得响应。
https://maps.googleapis.com/maps/api/directions/json?origin=place_id:ChIJR0FT51wiDogRNuVKiLn9ZLA&destination=place_id:ChIJMWaiY0YpTIYRRdGvCMg7m0g&key=MY_KEY&waypoints=place_id:ChIJaWS37r88DIgRu-ak1l7eXAQ
The via: prefix is most effective when creating routes in response to the user dragging the waypoints on the map. Doing so allows the user to see how the final route may look in real-time and helps ensure that waypoints are placed in locations that are accessible to the Google Maps Directions API.
Caution: Using the via: prefix to avoid stopovers results in directions that are very strict in their interpretation of the waypoint. This may result in severe detours on the route or ZERO_RESULTS in the response status code if the Google Maps Directions API is unable to create directions through that point.
我偶然发现了这个：当我使用 directionsDisplay.getDirections() API 来获取和显示结果时，它有效，但是当我通过 json:
https://maps.googleapis.com/maps/api/directions/json?origin=place_id:ChIJR0FT51wiDogRNuVKiLn9ZLA&destination=place_id:ChIJMWaiY0YpTIYRRdGvCMg7m0g&key=MY_KEY&waypoints=via:place_id:ChIJaWS37r88DIgRu-ak1l7eXAQ
我得到"status" : "ZERO_RESULTS"
我想知道为什么会这样？有什么想法吗？
从 waypoints 中删除“via:”关键字以获得响应。
https://maps.googleapis.com/maps/api/directions/json?origin=place_id:ChIJR0FT51wiDogRNuVKiLn9ZLA&destination=place_id:ChIJMWaiY0YpTIYRRdGvCMg7m0g&key=MY_KEY&waypoints=place_id:ChIJaWS37r88DIgRu-ak1l7eXAQ
The via: prefix is most effective when creating routes in response to the user dragging the waypoints on the map. Doing so allows the user to see how the final route may look in real-time and helps ensure that waypoints are placed in locations that are accessible to the Google Maps Directions API.
Caution: Using the via: prefix to avoid stopovers results in directions that are very strict in their interpretation of the waypoint. This may result in severe detours on the route or ZERO_RESULTS in the response status code if the Google Maps Directions API is unable to create directions through that point.