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我正在尝试在我的应用程序上加载 google 地方。目前我正在使用下面的方法提出请求

public PlacesList performSearch() throws IOException {
        PlacesList places = null;
        HttpRequestFactory httpRequestFactory = createRequestFactory(transport);
        HttpRequest request = httpRequestFactorybuildGetRequest(new GenericUrl(PLACES_SEARCH_URL));
        request.url.put("key", API_KEY);
        request.url.put("location", latitude + "," + longitude);
        request.url.put("radius", area);
        request.url.put("sensor", "true");
        request.url.put("types","night_club|bar|cafe"); 
        places = request.execute().parseAs(PlacesList.class);
        return places;
}

问题是没有返回数据。有没有其他方法可以加载附近的地方,因为如您所知,Places 应用程序可以完美地加载附近的地方?

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