Wie Sie ein Google Places-Search-Request mit Java

Ich Suche Goolge Places-Seiten durch die long/lat für alle Banken in der Gegend von 20m.
Diese Google Places-Doc beschreibt, wie es zu tun mit JavaScript. Sie werden mit einem google.maps.LatLng Objekt, dass ich nicht in Java.

Hat jemand nun, wie nennen die Service?

Vielleicht gibt es auch eine Java-API für Google Places?

Beste Grüße,
Christian.

Edit 1:

Fand ich jemand Bau der url wie diese:

String url = baseUrl + "location=" + lat + "," + lon + "&" +
                 "radius=" + searchRadius + "&" + types + "&" + "sensor=true" +
                 "&" + "key=" + googleAPIKey;

Antwort: Edit 2:

Ich, weil der Beitrag oben fand ich heraus, wie es zu tun. Dies ist ein Beispiel, wie um die Anfrage zu senden:

public class GooglePlacesClient
{
    private static final String GOOGLE_API_KEY  = "***";

    private final HttpClient    client          = new DefaultHttpClient();

    public static void main(final String[] args) throws ParseException, IOException, URISyntaxException
    {
        new GooglePlacesClient().performSearch("establishment", 8.6668310, 50.1093060);
    }

    public void performSearch(final String types, final double lon, final double lat) throws ParseException, IOException, URISyntaxException
    {
        final URIBuilder builder = new URIBuilder().setScheme("https").setHost("maps.googleapis.com").setPath("/maps/api/place/search/json");

        builder.addParameter("location", lat + "," + lon);
        builder.addParameter("radius", "5");
        builder.addParameter("types", types);
        builder.addParameter("sensor", "true");
        builder.addParameter("key", GooglePlacesClient.GOOGLE_API_KEY);

        final HttpUriRequest request = new HttpGet(builder.build());

        final HttpResponse execute = this.client.execute(request);

        final String response = EntityUtils.toString(execute.getEntity());

        System.out.println(response);
    }

}

InformationsquelleAutor d0x | 2012-09-17

google-places-api java

Hier ein vollständigeres Beispiel (enthält JSON Parsen und einige exception handling) für Orte, API, search, autocomplete, und details. Geschrieben wurde es für Android, kann aber leicht portiert für nicht-Android-Nutzung (Notwendigkeit, org.json-Bibliotheken und die Nutzung verschiedener Protokollierung). Die Place - Klasse ist eine einfache value-Objekt.

package com.example.google.places;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.util.Log;

import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLEncoder;
import java.util.ArrayList;

/**
 * @author saxman
 */
public class PlacesService {
    private static final String LOG_TAG = "ExampleApp";

    private static final String PLACES_API_BASE = "https://maps.googleapis.com/maps/api/place";

    private static final String TYPE_AUTOCOMPLETE = "/autocomplete";
    private static final String TYPE_DETAILS = "/details";
    private static final String TYPE_SEARCH = "/search";

    private static final String OUT_JSON = "/json";

    //KEY!
    private static final String API_KEY = "YOUR KEY";

    public static ArrayList<Place> autocomplete(String input) {
        ArrayList<Place> resultList = null;

        HttpURLConnection conn = null;
        StringBuilder jsonResults = new StringBuilder();
        try {
            StringBuilder sb = new StringBuilder(PLACES_API_BASE);
            sb.append(TYPE_AUTOCOMPLETE);
            sb.append(OUT_JSON);
            sb.append("?sensor=false");
            sb.append("&key=" + API_KEY);
            sb.append("&input=" + URLEncoder.encode(input, "utf8"));

            URL url = new URL(sb.toString());
            conn = (HttpURLConnection) url.openConnection();
            InputStreamReader in = new InputStreamReader(conn.getInputStream());

            int read;
            char[] buff = new char[1024];
            while ((read = in.read(buff)) != -1) {
                jsonResults.append(buff, 0, read);
            }
        } catch (MalformedURLException e) {
            Log.e(LOG_TAG, "Error processing Places API URL", e);
            return resultList;
        } catch (IOException e) {
            Log.e(LOG_TAG, "Error connecting to Places API", e);
            return resultList;
        } finally {
            if (conn != null) {
                conn.disconnect();
            }
        }

        try {
            //Create a JSON object hierarchy from the results
            JSONObject jsonObj = new JSONObject(jsonResults.toString());
            JSONArray predsJsonArray = jsonObj.getJSONArray("predictions");

            //Extract the Place descriptions from the results
            resultList = new ArrayList<Place>(predsJsonArray.length());
            for (int i = 0; i < predsJsonArray.length(); i++) {
                Place place = new Place();
                place.reference = predsJsonArray.getJSONObject(i).getString("reference");
                place.name = predsJsonArray.getJSONObject(i).getString("description");
                resultList.add(place);
            }
        } catch (JSONException e) {
            Log.e(LOG_TAG, "Error processing JSON results", e);
        }

        return resultList;
    }

    public static ArrayList<Place> search(String keyword, double lat, double lng, int radius) {
        ArrayList<Place> resultList = null;

        HttpURLConnection conn = null;
        StringBuilder jsonResults = new StringBuilder();
        try {
            StringBuilder sb = new StringBuilder(PLACES_API_BASE);
            sb.append(TYPE_SEARCH);
            sb.append(OUT_JSON);
            sb.append("?sensor=false");
            sb.append("&key=" + API_KEY);
            sb.append("&keyword=" + URLEncoder.encode(keyword, "utf8"));
            sb.append("&location=" + String.valueOf(lat) + "," + String.valueOf(lng));
            sb.append("&radius=" + String.valueOf(radius));

            URL url = new URL(sb.toString());
            conn = (HttpURLConnection) url.openConnection();
            InputStreamReader in = new InputStreamReader(conn.getInputStream());

            int read;
            char[] buff = new char[1024];
            while ((read = in.read(buff)) != -1) {
                jsonResults.append(buff, 0, read);
            }
        } catch (MalformedURLException e) {
            Log.e(LOG_TAG, "Error processing Places API URL", e);
            return resultList;
        } catch (IOException e) {
            Log.e(LOG_TAG, "Error connecting to Places API", e);
            return resultList;
        } finally {
            if (conn != null) {
                conn.disconnect();
            }
        }

        try {
            //Create a JSON object hierarchy from the results
            JSONObject jsonObj = new JSONObject(jsonResults.toString());
            JSONArray predsJsonArray = jsonObj.getJSONArray("results");

            //Extract the Place descriptions from the results
            resultList = new ArrayList<Place>(predsJsonArray.length());
            for (int i = 0; i < predsJsonArray.length(); i++) {
                Place place = new Place();
                place.reference = predsJsonArray.getJSONObject(i).getString("reference");
                place.name = predsJsonArray.getJSONObject(i).getString("name");
                resultList.add(place);
            }
        } catch (JSONException e) {
            Log.e(LOG_TAG, "Error processing JSON results", e);
        }

        return resultList;
    }

    public static Place details(String reference) {
        HttpURLConnection conn = null;
        StringBuilder jsonResults = new StringBuilder();
        try {
            StringBuilder sb = new StringBuilder(PLACES_API_BASE);
            sb.append(TYPE_DETAILS);
            sb.append(OUT_JSON);
            sb.append("?sensor=false");
            sb.append("&key=" + API_KEY);
            sb.append("&reference=" + URLEncoder.encode(reference, "utf8"));

            URL url = new URL(sb.toString());
            conn = (HttpURLConnection) url.openConnection();
            InputStreamReader in = new InputStreamReader(conn.getInputStream());

            //Load the results into a StringBuilder
            int read;
            char[] buff = new char[1024];
            while ((read = in.read(buff)) != -1) {
                jsonResults.append(buff, 0, read);
            }
        } catch (MalformedURLException e) {
            Log.e(LOG_TAG, "Error processing Places API URL", e);
            return null;
        } catch (IOException e) {
            Log.e(LOG_TAG, "Error connecting to Places API", e);
            return null;
        } finally {
            if (conn != null) {
                conn.disconnect();
            }
        }

        Place place = null;
        try {
            //Create a JSON object hierarchy from the results
            JSONObject jsonObj = new JSONObject(jsonResults.toString()).getJSONObject("result");

            place = new Place();
            place.icon = jsonObj.getString("icon");
            place.name = jsonObj.getString("name");
            place.formatted_address = jsonObj.getString("formatted_address");
            if (jsonObj.has("formatted_phone_number")) {
                place.formatted_phone_number = jsonObj.getString("formatted_phone_number");
            }
        } catch (JSONException e) {
            Log.e(LOG_TAG, "Error processing JSON results", e);
        }

        return place;
    }
}

Danke, mein Leben zu retten 🙂
Thnks you very much!!!

InformationsquelleAutor saxman

12

Einer Java-Bibliothek für die Arbeit mit der Google Places API ist verfügbar auf GitHub und in Maven-Central (Offenlegung: ich bin der Entwickler.) Abrufen einer Liste von Orten (oder details, Fotos, etc.) getan werden kann in einer oder zwei Zeilen. Siehe die Projekt-Seite für Beispiele und set-up-details.

https://github.com/pushbit/sprockets

cool, danke 🙂
Das ist cool, danke dafür 🙂

InformationsquelleAutor pushbit
1

Dort gibt es nicht offizielle Java-Bibliothek für die Google Places API. Es gibt jedoch mehrere Projekte gehostet auf Github. Eine andere ist diese:
Google Places-API-Java-Library auf Github

Es sollte angemerkt werden, dass die verlinkten repository ist ein fork des ursprünglichen Projekts. Das original-repo befindet sich hier
Es ist. github.com/googlemaps/google-maps-services-java

InformationsquelleAutor CapeAndCowl

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