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javaurlexceptionioexceptioninterrupted-exception

URISyntaxException while concatenating double quotes " " to a URL

I have

public List<Attraction> retrieveByQuery(String query, int page, int size) throws IOException, InterruptedException {
        String URL = "http://mydomain/get-by-query?";    
    URL += "query=" + query + "&page=" + page + "&size=" + size;

        HttpClient httpClient = HttpClient.newHttpClient();
        HttpRequest httpRequest = HttpRequest
                .newBuilder()
                .GET()
                .header("accept", "application/json")
                .uri(URI.create(URL)) // thows URISyntaxException
                .build();

        HttpResponse<String> httpResponses = httpClient.send(httpRequest, HttpResponse.BodyHandlers.ofString());


        return null;
    }
  • This is giving me

URISyntaxException

how can I fix? I think the problem is with "" (double quotes).

EDIT

This is the full stack strace with exceptions and details:

Exception in thread "JavaFX Application Thread"

java.lang.IllegalArgumentException: Illegal character in query at index 126: http://.../get-by-query?query=name=="Casa Lucio Dalla"&page=0&size=100
    at java.base/java.net.URI.create(URI.java:883)
    at dao_implementations.AttractionDAO_MongoDB.retrieveByQuery(AttractionDAO_MongoDB.java:119)
    at controllers.CrudAttractionController.doRetrieveByQuery(CrudAttractionController.java:505)
    at controllers.CrudAttractionController.lambda$buttonConfermaClicked$9(CrudAttractionController.java:451)
    at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
    at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
    at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
    at javafx.base/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
    at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
    at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
    at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
    at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
    at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
    at javafx.base/javafx.event.Event.fireEvent(Event.java:198)
    at javafx.graphics/javafx.scene.Node.fireEvent(Node.java:8879)
    at javafx.controls/javafx.scene.control.Button.fire(Button.java:200)
    at javafx.controls/com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:206)
    at javafx.controls/com.sun.javafx.scene.control.inputmap.InputMap.handle(InputMap.java:274)
    at javafx.base/com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
    at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
    at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
    at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
    at javafx.base/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
    at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
    at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
    at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
    at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
    at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
    at javafx.base/javafx.event.Event.fireEvent(Event.java:198)
    at javafx.graphics/javafx.scene.Scene$MouseHandler.process(Scene.java:3851)
    at javafx.graphics/javafx.scene.Scene$MouseHandler.access$1200(Scene.java:3579)
    at javafx.graphics/javafx.scene.Scene.processMouseEvent(Scene.java:1849)
    at javafx.graphics/javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2588)
    at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:397)
    at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:295)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(GlassViewEventHandler.java:434)
    at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:390)
    at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:433)
    at javafx.graphics/com.sun.glass.ui.View.handleMouseEvent(View.java:556)
    at javafx.graphics/com.sun.glass.ui.View.notifyMouse(View.java:942)
    at javafx.graphics/com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
    at javafx.graphics/com.sun.glass.ui.gtk.GtkApplication.lambda$runLoop$11(GtkApplication.java:277)
    at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.net.URISyntaxException: Illegal character in query at index 126: http://Troppadvisorserver-env.eba-pfsmp3kx.us-east-1.elasticbeanstalk.com/attraction/search-by-rsql-no-point?query=name=='Casa Lucio Dalla';certificateOfExcellence==false&page=0&size=100
    at java.base/java.net.URI$Parser.fail(URI.java:2913)
    at java.base/java.net.URI$Parser.checkChars(URI.java:3084)
    at java.base/java.net.URI$Parser.parseHierarchical(URI.java:3172)
    at java.base/java.net.URI$Parser.parse(URI.java:3114)
    at java.base/java.net.URI.<init>(URI.java:600)
    at java.base/java.net.URI.create(URI.java:881)
    ... 49 more

followed by:

Caused by: java.net.URISyntaxException: Illegal character in query at index 126: http://.../get-by-query?query=name=="Casa Lucio Dalla"&page=0&size=100

Note that if I use a query with no spaces, for example Casa instead of Casa Lucio Dalla it works perfectly.

EDIT2

If I use URL += "query=" + URLEncoder.encode(query, StandardCharsets.UTF_8) + "&page=" + page + "&size=" + size;, it gives me Error 500 internal server error

Solution

  • You need to URL encode the query part of the URL.

    If the URL should contain a " character, it must be in the form of %22.

    Here's some code:

    import java.net.URLEncoder;

...

URL += "query=" + URLEncoder.encode(query, StandardCharsets.UTF_8) + "&page=" + page + "&size=" + size;
//                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

    Update:

    If I use [the above suggestion], it gives me Error 500 internal server error

    This means that the URL in created properly, and that the request reaches the server. Please post a new question with the server side error if you can't figure that out.