graphhopper GHRequest未获取

Question

我对这段代码有一个问题：

    GraphHopperAPI gh = new GraphHopperWeb();
    gh.load("http://localhost:8989/api/route");
    GHResponse ph = gh.route(new GHRequest(45.104546,7.69043,45.104546,7.69043));

它给出了这个错误：

2014-03-29 09:33:00,036 [main] INFO  graphhopper.http.GraphHopperWeb - Full request     took:0.037406, API took:0.0

Exception in thread "main" java.lang.RuntimeException: Problem while fetching path 45.104546, 7.69043->45.104546, 7.69043   
        at com.graphhopper.http.GraphHopperWeb.route(GraphHopperWeb.java:119)
    at provaMain.main(provaMain.java:23)

Caused by: org.json.JSONException: A JSONObject text must begin with '{' at character 0
    at org.json.JSONTokener.syntaxError(JSONTokener.java:410)
    at org.json.JSONObject.<init>(JSONObject.java:179)
    at org.json.JSONObject.<init>(JSONObject.java:402)
    at com.graphhopper.http.GraphHopperWeb.route(GraphHopperWeb.java:95)
    ... 1 more

Answer 1

文档目前正在发生变化(将其从wiki转移到源代码)。你在哪里找到那段视频的？请在此之前尝试使用gh.load("http://localhost:8989/");和gh.load("http://localhost:8989/api");获取最新的分支。