when I implement the google map it worked fine, but when I add in the web scraping function it can build but app crashed when run, is the web scraping error? how can I modify it to able scrape the web table content and load into google map snippet? I would like to use the marker with snippet to show the web scraping content and the location together. Thanks.
public class mapActivity extends AppCompatActivity implements OnMapReadyCallback {
GoogleMap map;
private final LatLng PERTH = new LatLng(-31.952854, 115.857342);
private final LatLng SYDNEY = new LatLng(-33.87365, 151.20689);
private final LatLng BRISBANE = new LatLng(-27.47093, 153.0235);
private Marker markerPerth;
private Marker markerSydney;
private Marker markerBrisbane;
String text1 = null;
String text2 = null;
String text3 = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_map);
final
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
getdata();
}
private boolean getdata() {
try {
Document doc = Jsoup.connect("url").get();
Elements data1 = doc.select("table");
text1 = data1.select("tr").get(1).text();
text2 = data1.select("tr").get(2).text();
text3 = data1.select("tr").get(3).text();
} catch (IOException e) {
e.printStackTrace();
}
return true;
}
@Override
public void onMapReady(GoogleMap map) {
// Add some markers to the map, and add a data object to each marker.
markerPerth = map.addMarker(new MarkerOptions()
.position(PERTH)
.title("Perth")
.snippet("details"+ text1));
markerSydney = map.addMarker(new MarkerOptions()
.position(SYDNEY)
.title("Sydney")
.snippet("Details"+text2));
markerBrisbane = map.addMarker(new MarkerOptions()
.position(BRISBANE)
.title("Brisbane")
.snippet("Details"+text3));
}
below are the red error code:
2021-03-25 22:57:58.020 4987-4987/com.example.mpsd E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.mpsd, PID: 4987
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.mpsd/com.example.mpsd.mapActivity}: java.lang.IllegalArgumentException: Malformed URL: url
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3449)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
Caused by: java.lang.IllegalArgumentException: Malformed URL: url
at org.jsoup.helper.HttpConnection.url(HttpConnection.java:131)
at org.jsoup.helper.HttpConnection.connect(HttpConnection.java:70)
at org.jsoup.Jsoup.connect(Jsoup.java:73)
at com.example.mpsd.mapActivity.getdata(mapActivity.java:45)
at com.example.mpsd.mapActivity.onCreate(mapActivity.java:39)
at android.app.Activity.performCreate(Activity.java:8000)
at android.app.Activity.performCreate(Activity.java:7984)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1309)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3422)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
Caused by: java.net.MalformedURLException: no protocol: url
at java.net.URL.<init>(URL.java:601)
at java.net.URL.<init>(URL.java:498)
at java.net.URL.<init>(URL.java:447)
at org.jsoup.helper.HttpConnection.url(HttpConnection.java:129)
at org.jsoup.helper.HttpConnection.connect(HttpConnection.java:70)
at org.jsoup.Jsoup.connect(Jsoup.java:73)
at com.example.mpsd.mapActivity.getdata(mapActivity.java:45)
at com.example.mpsd.mapActivity.onCreate(mapActivity.java:39)
at android.app.Activity.performCreate(Activity.java:8000)
at android.app.Activity.performCreate(Activity.java:7984)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1309)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3422)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
I have solved the problem, can refer to [Answer!](Adding markers from Google Maps in Asynctask)
