Pobieranie pogody - druga wersja

20240509_Pogoda/src/main/java/pobieranie/PobierzPogodeDlaMiasta.java

+package pobieranie;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.util.Scanner;
+
+import jakarta.json.Json;
+import jakarta.json.JsonArray;
+import jakarta.json.JsonObject;
+import jakarta.json.JsonReader;
+import jakarta.json.JsonValue;
+
+public class PobierzPogodeDlaMiasta {
+    private Scanner scanner = new Scanner(System.in);
+    private double lat;
+    private double lon;
+    private String miasto;
+
+
+    public static void main(String[] args) {
+   	 new PobierzPogodeDlaMiasta().run();
+    }
+
+    public void run() {
+   	 try {
+   	 System.out.print("Podaj nazwę miasta: ");
+   	 String szukane = scanner.nextLine();
+   	 if(znajdzMiasto(szukane)) {
+   		 pobierzIWypiszPogode();
+   	 }
+   	 } catch (Exception e) {
+   		 e.printStackTrace();
+   	 }
+    }
+
+    private boolean znajdzMiasto(String szukane) throws IOException {
+   	 URL url = new URL("https://geocoding-api.open-meteo.com/v1/search?name=" + szukane);
+   	 try(InputStream input = url.openStream();
+   		 JsonReader reader = Json.createReader(input)) {
+   		 JsonObject json = reader.readObject();
+   		 JsonArray results = json.getJsonArray("results");
+   		 if(results.isEmpty()) {
+   			 System.out.println("Brak znalezionych lokalizacji");
+   			 return false;
+   		 }
+   		 System.out.println("Znalezione lokalizacje:");
+   		 int i = 0;
+   		 for(JsonValue result : results) {
+   			 JsonObject resulto = result.asJsonObject();
+   			 //System.out.print(result);
+   			 System.out.printf("%2d: <%+.3f %+.3f> → %s, %s%n", i++,
+   					 resulto.getJsonNumber("latitude").doubleValue(),
+   					 resulto.getJsonNumber("longitude").doubleValue(),
+   					 resulto.getString("name"), resulto.getString("country"));
+   		 }
+   		 System.out.print("Wybierz numer lokalizacji: ");
+   		 i = scanner.nextInt();
+   		 if(i < 0 || i >= results.size()) {
+   			 return false;
+   		 }
+   		 JsonObject loc = results.getJsonObject(i);
+   		 lat = loc.getJsonNumber("latitude").doubleValue();
+   		 lon = loc.getJsonNumber("longitude").doubleValue();
+   		 miasto = loc.getString("name");
+   		 return true;
+   	 }
+    }
+
+    private void pobierzIWypiszPogode() throws IOException {
+   	 URL url = new URL("https://api.open-meteo.com/v1/forecast?latitude=" + lat + "&longitude="+ lon +"&current_weather=true&hourly=temperature_2m");
+   	 try(InputStream input = url.openStream();
+   		 JsonReader reader = Json.createReader(input)) {
+   		 JsonObject json = reader.readObject();
+   		 JsonObject weather = json.getJsonObject("current_weather");
+
+   		 System.out.printf("Bieżąca pogoda dla miasta %s:%n", miasto);
+   		 System.out.println(weather);
+   		 System.out.printf("Temperatura %.1f °C%n", weather.getJsonNumber("temperature").doubleValue());
+   		 System.out.printf("Wiatr:  	%.1f km/h%n", weather.getJsonNumber("windspeed").doubleValue());
+   	 }
+    }
+
+}
+
+

20240509_Pogoda/src/main/java/pogoda/WyswietlPogodeDlaWspolrzednych.form

@@ -68,7 +68,7 @@
                   <Component id="jLabel3" alignment="3" min="-2" pref="31" max="-2" attributes="0"/>
                   <Component id="jLabel_Temperatura" alignment="3" min="-2" pref="31" max="-2" attributes="0"/>
               </Group>
-              <EmptySpace pref="259" max="32767" attributes="0"/>
+              <EmptySpace pref="61" max="32767" attributes="0"/>
           </Group>
       </Group>
     </DimensionLayout>

20240509_Pogoda/src/main/java/pogoda/WyswietlPogodeDlaWspolrzednych.java

@@ -112,7 +112,7 @@ public class WyswietlPogodeDlaWspolrzednych extends javax.swing.JFrame {
                 .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                     .addComponent(jLabel3, javax.swing.GroupLayout.PREFERRED_SIZE, 31, javax.swing.GroupLayout.PREFERRED_SIZE)
                     .addComponent(jLabel_Temperatura, javax.swing.GroupLayout.PREFERRED_SIZE, 31, javax.swing.GroupLayout.PREFERRED_SIZE))
-                .addContainerGap(259, Short.MAX_VALUE))
+                .addContainerGap(61, Short.MAX_VALUE))
         );
 
         pack();