I need to search Goolge Places Pages by long/lat for any banks in the area of 20m.
This Google Places Doc describes how to do it with JavaScript. They are using a google.maps.LatLng
Object that i don't have in Java.
Does anyone now how to call the Service?
Maybe there is also an Java API for Goolge Places?
Best Regards, Christian.
Edit 1:
I found someone constructing the url like this:
String url = baseUrl + "location=" + lat + "," + lon + "&" +
"radius=" + searchRadius + "&" + types + "&" + "sensor=true" +
"&" + "key=" + googleAPIKey;
Answer: Edit 2:
I because of the post above i found out how to do it. This is a example how to send the request:
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);
}
}
Here's a more complete example (includes JSON parsing and some exception handling) for Places API search, autocomplete, and details. It was written for Android, but can be easily ported for non-Android use (need to include org.json libs and use different logging). The Place
class is a simple value object.
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;
}
}