将双引号 " " 连接到 URL 时出现 URISyntaxException

Question

我有

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;
    }

这是给了我

URISyntaxException

我该如何解决？我认为问题出在 "" （双引号）。

编辑

这是包含异常和详细信息的完整堆栈跟踪：

线程“JavaFX 应用程序线程”中出现异常

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$buttonConfermaClicked(CrudAttractionController.java:451)
    at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
    at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
    at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
    at javafx.base/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
    at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
    at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
    at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
    at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
    at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
    at javafx.base/javafx.event.Event.fireEvent(Event.java:198)
    at javafx.graphics/javafx.scene.Node.fireEvent(Node.java:8879)
    at javafx.controls/javafx.scene.control.Button.fire(Button.java:200)
    at javafx.controls/com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:206)
    at javafx.controls/com.sun.javafx.scene.control.inputmap.InputMap.handle(InputMap.java:274)
    at javafx.base/com.sun.javafx.event.CompositeEventHandler$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.access00(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(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$runLoop(GtkApplication.java:277)
    at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.net.URISyntaxException: Illegal character in query at index 126: http://Troppadvisorserver-env.eba-pfsmp3kx.us-east-1.elasticbeanstalk.com/attraction/search-by-rsql-no-point?query=name=='Casa Lucio Dalla';certificateOfExcellence==false&page=0&size=100
    at java.base/java.net.URI$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

其次是：

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

请注意，如果我使用不带空格的查询，例如 Casa 而不是 Casa Lucio Dalla，它会完美运行。

EDIT2

如果我使用 URL += "query=" + URLEncoder.encode(query, StandardCharsets.UTF_8) + "&page=" + page + "&size=" + size;，它会给我错误 500 内部服务器错误

Answer 1

您需要 URL 编码 URL 的 query 部分。

如果URL要包含一个"字符，则必须是%22.

的形式

这是一些代码：

import java.net.URLEncoder;

...

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

更新：

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

这意味着 URL 已正确创建，并且请求已到达服务器。如果您无法解决问题，请 post 提出一个关于服务器端错误的新问题。

将双引号 " " 连接到 URL 时出现 URISyntaxException

URISyntaxException while concatenating double quotes " " to a URL

java

url

exception

ioexception

interrupted-exception

更新：