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主页 / coding / 问题

问题[vaadin](coding)

Martin Hope
alexanoid
Asked: 2025-04-02 07:22:16 +0800 CST

Vaadin Copilot AI - 解析 JSON 时出错:无法写入文件,JSON 块失败

  • 6

我正在使用 Vaadin Flow 在 Windows 11 上测试 Vaadin Copilot AI 功能,并要求它执行以下命令:

Create an empty LocationView class with one button on the screen named 'Test'.

作为回应,我收到一个错误:

Error parsing JSON: Unable to write file - JSON chunk that failed

细节:

2025-04-02T02:17:19.100+03:00  INFO 32644 --- [ctor-http-nio-7] com.vaadin.copilot.ai.AICommandHandler   : Parsed JSON: StreamResponse[status=VALIDATION, message=Validation finished, exception=, changes={}, code=1]
2025-04-02T02:17:19.757+03:00  INFO 32644 --- [ctor-http-nio-7] com.vaadin.copilot.ai.AICommandHandler   : Parsed JSON: StreamResponse[status=PRE_PROCESS, message=Flow Source modified, exception=, changes={}, code=2]
2025-04-02T02:17:20.478+03:00  INFO 32644 --- [ctor-http-nio-7] com.vaadin.copilot.ai.AICommandHandler   : Parsed JSON: StreamResponse[status=EMBEDDING_CONTEXT, message=Embedding context retrieval finished, exception=, changes={}, code=2]
2025-04-02T02:17:22.617+03:00  INFO 32644 --- [ctor-http-nio-7] com.vaadin.copilot.ai.AICommandHandler   : Parsed JSON: StreamResponse[status=AI_CALL, message=AI call finished, exception=, changes={}, code=2]
2025-04-02T02:17:22.618+03:00  INFO 32644 --- [ctor-http-nio-7] com.vaadin.copilot.ai.AICommandHandler   : Parsed JSON: StreamResponse[status=POST_PROCESS, message=Post-process finished, exception=, changes={src\main\java\ai\example\base\ui\view\LocationView.java=package ai.example.base.ui.view;

import com.vaadin.flow.component.button.Button;
import com.vaadin.flow.component.orderedlayout.VerticalLayout;
import com.vaadin.flow.router.Route;

@Route("location")
public class LocationView extends VerticalLayout {

    public LocationView() {
        Button testButton = new Button("Test");
        add(testButton);
    }
}
}, code=2]
2025-04-02T02:17:22.619+03:00  INFO 32644 --- [ctor-http-nio-7] com.vaadin.copilot.ai.AICommandHandler   : PostProcess finished
2025-04-02T02:17:22.620+03:00 ERROR 32644 --- [ctor-http-nio-7] com.vaadin.copilot.ai.AICommandHandler   : Error parsing JSON: Unable to write file (src\main\java\ai\example\base\ui\view\LocationView.java) with data from copilot server response - JSON chunk that failed: {"status":"POST_PROCESS","message":"Post-process finished","exception":"","changes":{"src\\main\\java\\ai\\example\\base\\ui\\view\\LocationView.java":"package ai.example.base.ui.view;\n\nimport com.vaadin.flow.component.button.Button;\nimport com.vaadin.flow.component.orderedlayout.VerticalLayout;\nimport com.vaadin.flow.router.Route;\n\n@Route(\"location\")\npublic class LocationView extends VerticalLayout {\n\n    public LocationView() {\n        Button testButton = new Button(\"Test\");\n        add(testButton);\n    }\n}\n"},"code":2}

我做错了什么,这可能是什么原因造成的?

vaadin
  • 1 个回答
  • 34 Views
Martin Hope
ulim
Asked: 2025-02-24 19:11:49 +0800 CST

为什么 Vaadin 前端组件版本落后于后端版本?

  • 5

当我使用 Vaadin 24.6.5 构建生产模式并检查构建工件时,我发现前端组件版本落后了。所有后端 Jar 都具有版本 24.6.5,但在package.json:

"@vaadin/bundles": "24.6.4", "@vaadin/react-components": "24.6.4"等等 - 所有组件都落后一个版本。pnpm-lock.yaml

当我降级到 24.6.4 时,发生了同样的事情:后端 jar 都是 24.6.4,而前端组件是 24.6.3。

vaadin
  • 1 个回答
  • 13 Views
Martin Hope
worstAmongThe4SeasonsIsSpring
Asked: 2023-09-24 18:32:28 +0800 CST

从 ubuntu 机器创建的 war 文件无法启动

  • 3

我正在尝试使用从另一个实例(ubuntu)构建的war文件在window10中启动基于springboot的演示vaadin web应用程序。然而,虽然它在ubuntu中工作,但在window10中无法通过以下步骤启动嵌入式Tomcat Web服务器。

  1. 按照本文档的指示创建 war 文件https://docs.spring.io/spring-boot/docs/current/reference/html/howto.html#howto.traditional-deployment.war

  2. 将 war 文件、 target/ 和 node_modules 复制到 window 中的同一目录中

  3. java -jar flowcrmtutorial-1.0-SNAPSHOT.war

  4. 发生错误================================================== =================================================== ==

 _____  _                     ____  ____   __  __   _____         _                 _         _
|  ___|| |  ___  __      __  / ___||  _ \ |  \/  | |_   _| _   _ | |_   ___   _ __ (_)  __ _ | |
| |_   | | / _ \ \ \ /\ / / | |    | |_) || |\/| |   | |  | | | || __| / _ \ | '__|| | / _` || |
|  _|  | || (_) | \ V  V /  | |___ |  _ < | |  | |   | |  | |_| || |_ | (_) || |   | || (_| || |
|_|    |_| \___/   \_/\_/    \____||_| \_\|_|  |_|   |_|   \__,_| \__| \___/ |_|   |_| \__,_||_|


2023-09-24 18:00:27.604  INFO 13272 --- [           main] com.example.application.Application      : Starting Application v1.0-SNAPSHOT using Java 11.0.17 on LAPTOP-1AAIV86V with PID 13272 (C:\Users\alex\Desktop\demoTesting\flowcrmtutorial-1.0-SNAPSHOT.war started by alex in C:\Users\alex\Desktop\demoTesting)
2023-09-24 18:00:27.609  INFO 13272 --- [           main] com.example.application.Application      : No active profile set, falling back to default profiles: default
2023-09-24 18:00:29.395  INFO 13272 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
2023-09-24 18:00:29.617  INFO 13272 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 209 ms. Found 3 JPA repository interfaces.
2023-09-24 18:00:31.081  INFO 13272 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
2023-09-24 18:00:31.106  INFO 13272 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2023-09-24 18:00:31.107  INFO 13272 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.45]
2023-09-24 18:00:33.320  INFO 13272 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2023-09-24 18:00:33.320  INFO 13272 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 5607 ms
2023-09-24 18:00:33.645 ERROR 13272 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Exception sending context initialized event to listener instance of class [com.vaadin.flow.spring.VaadinServletContextInitializer$CompositeServletContextListener]

java.lang.IllegalStateException: Running project in development mode with no access to folder '/home/alex/Documents/vaadinTesting/flow-crm-tutorial'.
Build project in production mode instead, see https://vaadin.com/docs/v14/flow/production/tutorial-production-mode-basic.html
        at com.vaadin.flow.server.DeploymentConfigurationFactory.verifyFolderExists(DeploymentConfigurationFactory.java:453) ~[flow-server-2.9.3.jar!/:2.9.3]
        at com.vaadin.flow.server.DeploymentConfigurationFactory.setInitParametersUsingTokenData(DeploymentConfigurationFactory.java:251) ~[flow-server-2.9.3.jar!/:2.9.3]
        at com.vaadin.flow.server.DeploymentConfigurationFactory.readBuildInfo(DeploymentConfigurationFactory.java:191) ~[flow-server-2.9.3.jar!/:2.9.3]
        at com.vaadin.flow.server.DeploymentConfigurationFactory.createInitParameters(DeploymentConfigurationFactory.java:177) ~[flow-server-2.9.3.jar!/:2.9.3]
        at com.vaadin.flow.server.DeploymentConfigurationFactory.createPropertyDeploymentConfiguration(DeploymentConfigurationFactory.java:139) ~[flow-server-2.9.3.jar!/:2.9.3]
        at com.vaadin.flow.spring.VaadinServletContextInitializer$SpringStubServletConfig.createDeploymentConfiguration(VaadinServletContextInitializer.java:887) ~[vaadin-spring-12.4.5.jar!/:na]
        at com.vaadin.flow.spring.VaadinServletContextInitializer$DevModeServletContextListener.contextInitialized(VaadinServletContextInitializer.java:407) ~[vaadin-spring-12.4.5.jar!/:na]
        at com.vaadin.flow.spring.VaadinServletContextInitializer$CompositeServletContextListener.lambda$contextInitialized$0(VaadinServletContextInitializer.java:180) ~[vaadin-spring-12.4.5.jar!/:na]
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1541) ~[na:na]
        at com.vaadin.flow.spring.VaadinServletContextInitializer$CompositeServletContextListener.contextInitialized(VaadinServletContextInitializer.java:180) ~[vaadin-spring-12.4.5.jar!/:na]
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4714) ~[tomcat-embed-core-9.0.45.jar!/:na]
        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5172) ~[tomcat-embed-core-9.0.45.jar!/:na]
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.45.jar!/:na]
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384) ~[tomcat-embed-core-9.0.45.jar!/:na]
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374) ~[tomcat-embed-core-9.0.45.jar!/:na]
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
        at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.45.jar!/:na]
        at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140) ~[na:na]
        at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909) ~[tomcat-embed-core-9.0.45.jar!/:na]
        at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:843) ~[tomcat-embed-core-9.0.45.jar!/:na]
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.45.jar!/:na]
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384) ~[tomcat-embed-core-9.0.45.jar!/:na]
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374) ~[tomcat-embed-core-9.0.45.jar!/:na]
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
        at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.45.jar!/:na]
        at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140) ~[na:na]
        at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909) ~[tomcat-embed-core-9.0.45.jar!/:na]
        at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) ~[tomcat-embed-core-9.0.45.jar!/:na]
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.45.jar!/:na]
        at org.apache.catalina.core.StandardService.startInternal(StandardService.java:433) ~[tomcat-embed-core-9.0.45.jar!/:na]
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.45.jar!/:na]
        at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930) ~[tomcat-embed-core-9.0.45.jar!/:na]
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.45.jar!/:na]
        at org.apache.catalina.startup.Tomcat.start(Tomcat.java:486) ~[tomcat-embed-core-9.0.45.jar!/:na]
        at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:123) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:104) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:450) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:199) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:181) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:159) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:577) ~[spring-context-5.3.6.jar!/:5.3.6]
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:782) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:774) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:439) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:339) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1340) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1329) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at com.example.application.Application.main(Application.java:22) ~[classes!/:1.0-SNAPSHOT]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
        at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:49) ~[flowcrmtutorial-1.0-SNAPSHOT.war:1.0-SNAPSHOT]
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:108) ~[flowcrmtutorial-1.0-SNAPSHOT.war:1.0-SNAPSHOT]
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:58) ~[flowcrmtutorial-1.0-SNAPSHOT.war:1.0-SNAPSHOT]
        at org.springframework.boot.loader.WarLauncher.main(WarLauncher.java:59) ~[flowcrmtutorial-1.0-SNAPSHOT.war:1.0-SNAPSHOT]

2023-09-24 18:00:33.647 ERROR 13272 --- [           main] o.apache.catalina.core.StandardContext   : One or more listeners failed to start. Full details will be found in the appropriate container log file
2023-09-24 18:00:33.648 ERROR 13272 --- [           main] o.apache.catalina.core.StandardContext   : Context [] startup failed due to previous errors
2023-09-24 18:00:33.911  INFO 13272 --- [           main] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]
2023-09-24 18:00:33.916  WARN 13272 --- [           main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
2023-09-24 18:00:33.927  INFO 13272 --- [           main] ConditionEvaluationReportLoggingListener :

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2023-09-24 18:00:33.958 ERROR 13272 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:162) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:577) ~[spring-context-5.3.6.jar!/:5.3.6]
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:782) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:774) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:439) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:339) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1340) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1329) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at com.example.application.Application.main(Application.java:22) ~[classes!/:1.0-SNAPSHOT]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
        at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:49) ~[flowcrmtutorial-1.0-SNAPSHOT.war:1.0-SNAPSHOT]
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:108) ~[flowcrmtutorial-1.0-SNAPSHOT.war:1.0-SNAPSHOT]
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:58) ~[flowcrmtutorial-1.0-SNAPSHOT.war:1.0-SNAPSHOT]
        at org.springframework.boot.loader.WarLauncher.main(WarLauncher.java:59) ~[flowcrmtutorial-1.0-SNAPSHOT.war:1.0-SNAPSHOT]
Caused by: org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
        at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:142) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:104) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:450) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:199) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:181) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:159) ~[spring-boot-2.4.5.jar!/:2.4.5]
        ... 17 common frames omitted
Caused by: java.lang.IllegalStateException: StandardEngine[Tomcat].StandardHost[localhost].TomcatEmbeddedContext[] failed to start
        at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.rethrowDeferredStartupExceptions(TomcatWebServer.java:187) ~[spring-boot-2.4.5.jar!/:2.4.5]
        at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:126) ~[spring-boot-2.4.5.jar!/:2.4.5]
        ... 22 common frames omitted

=====================================================================================================

我认为问题的原因是“java.lang.IllegalStateException:在开发模式下运行项目,无法访问文件夹'/home/alex/Documents/vaadinTesting/flow-crm-tutorial'”。

如果是这种情况,我如何配置路径,以便我可以使用 war 文件在开发中运行 vaadin ?或者我需要其他文件/文件夹吗?

vaadin
  • 1 个回答
  • 28 Views

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