将双引号“”连接到URL时发生URISyntaxException

问题描述

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;
    }

• 这给了我

URISyntaxException

我该如何解决？我认为问题出在""（双引号）上。

编辑

这是完整的堆栈跟踪，带有异常和详细信息：

线程“ JavaFX Application Thread”中的异常

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$9(CrudAttractionController.java:451)
    at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
    at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
    at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
    at javafx.base/com.sun.javafx.event.CompositeEventdispatcher.dispatchBubblingEvent(CompositeEventdispatcher.java:59)
    at javafx.base/com.sun.javafx.event.BasicEventdispatcher.dispatchEvent(BasicEventdispatcher.java:58)
    at javafx.base/com.sun.javafx.event.EventdispatchChainImpl.dispatchEvent(EventdispatchChainImpl.java:114)
    at javafx.base/com.sun.javafx.event.BasicEventdispatcher.dispatchEvent(BasicEventdispatcher.java:56)
    at javafx.base/com.sun.javafx.event.EventdispatchChainImpl.dispatchEvent(EventdispatchChainImpl.java:114)
    at javafx.base/com.sun.javafx.event.BasicEventdispatcher.dispatchEvent(BasicEventdispatcher.java:56)
    at javafx.base/com.sun.javafx.event.EventdispatchChainImpl.dispatchEvent(EventdispatchChainImpl.java:114)
    at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
    at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
    at javafx.base/javafx.event.Event.fireEvent(Event.java:198)
    at javafx.graphics/javafx.scene.Node.fireEvent(Node.java:8879)
    at javafx.controls/javafx.scene.control.Button.fire(Button.java:200)
    at javafx.controls/com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:206)
    at javafx.controls/com.sun.javafx.scene.control.inputmap.InputMap.handle(InputMap.java:274)
    at javafx.base/com.sun.javafx.event.CompositeEventHandler$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

其次：

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，如果我使用的查询没有空格，例如使用Casa而不是Casa Lucio Dalla，那么它就可以正常工作。

EDIT2

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

解决方法

您需要对URL的query部分进行URL编码。

如果URL应包含"字符，则其形式必须为%22。

这是一些代码：

import java.net.URLEncoder;

...

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

更新：

如果我使用 [以上建议] ，它会给我Error 500内部服务器错误

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，请发布一个服务器端错误的新问题。