鸿蒙编译框架@ohos/hvigor FileUtil用法

@ohos/hvigor FileUtil用法
 

在鸿蒙(HarmonyOS)开发中,@ohos/hvigor 的 FileUtil 是用于文件操作的实用工具类,提供了跨平台的文件读写、路径处理等常用方法。以下是其核心用法和示例:


一、核心方法说明

方法名 功能描述 --------------------------------- --------------------------------------------------------------------------

|  readFile(path: string) | 异步读取文件内容(返回 Promise<string>) |

|  writeFile(path: string, content: string) | 异步写入文件内容(自动创建目录) |   

|  copyFile(src: string, dest: string) | 异步复制文件(支持覆盖) |    

 deleteFile(path: string)&nb

"C:\Program Files\Java\jdk-21\bin\java.exe" -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:53025,suspend=y,server=n -Dcool.request.port=54072 -javaagent:C:\Users\MR\AppData\Local\JetBrains\IntelliJIdea2023.1\captureAgent\debugger-agent.jar -Dfile.encoding=UTF-8 -Dsun.stdout.encoding=UTF-8 -Dsun.stderr.encoding=UTF-8 -classpath "D:\repository_JAVAFX\org\openjfx\javafx-controls\21.0.1\javafx-controls-21.0.1.jar;D:\repository_JAVAFX\org\openjfx\javafx-graphics\21.0.1\javafx-graphics-21.0.1.jar;D:\repository_JAVAFX\org\openjfx\javafx-base\21.0.1\javafx-base-21.0.1.jar;D:\repository_JAVAFX\org\openjfx\javafx-fxml\21.0.1\javafx-fxml-21.0.1.jar;D:\repository_JAVAFX\org\openjfx\javafx-web\21.0.1\javafx-web-21.0.1.jar;D:\repository_JAVAFX\org\openjfx\javafx-media\21.0.1\javafx-media-21.0.1.jar;D:\repository_JAVAFX\com\alibaba\easyexcel\3.3.2\easyexcel-3.3.2.jar;D:\repository_JAVAFX\com\alibaba\easyexcel-support\3.3.2\easyexcel-support-3.3.2.jar;D:\repository_JAVAFX\org\apache\poi\poi\4.1.2\poi-4.1.2.jar;D:\repository_JAVAFX\org\apache\commons\commons-collections4\4.4\commons-collections4-4.4.jar;D:\repository_JAVAFX\org\apache\commons\commons-math3\3.6.1\commons-math3-3.6.1.jar;D:\repository_JAVAFX\com\zaxxer\SparseBitSet\1.2\SparseBitSet-1.2.jar;D:\repository_JAVAFX\org\apache\poi\poi-ooxml\4.1.2\poi-ooxml-4.1.2.jar;D:\repository_JAVAFX\org\apache\commons\commons-compress\1.19\commons-compress-1.19.jar;D:\repository_JAVAFX\com\github\virtuald\curvesapi\1.06\curvesapi-1.06.jar;D:\repository_JAVAFX\org\apache\poi\poi-ooxml-schemas\4.1.2\poi-ooxml-schemas-4.1.2.jar;D:\repository_JAVAFX\org\apache\xmlbeans\xmlbeans\3.1.0\xmlbeans-3.1.0.jar;D:\repository_JAVAFX\org\ehcache\ehcache\3.9.9\ehcache-3.9.9.jar;C:\Users\MR\.config\.cool-request\request\lib\spring-invoke-starter.jar;D:\install\IntelliJ IDEA 2023.1.3\lib\idea_rt.jar" -p D:\repository_JAVAFX\org\openjfx\javafx-base\21.0.1\javafx-base-21.0.1-win.jar;D:\repository_JAVAFX\org\controlsfx\controlsfx\11.1.2\controlsfx-11.1.2.jar;D:\repository_JAVAFX\org\openjfx\javafx-web\21.0.1\javafx-web-21.0.1-win.jar;D:\repository_JAVAFX\org\openjfx\javafx-controls\21.0.1\javafx-controls-21.0.1-win.jar;D:\repository_JAVAFX\commons-codec\commons-codec\1.16.1\commons-codec-1.16.1.jar;D:\repository_JAVAFX\ch\qos\logback\logback-core\1.4.14\logback-core-1.4.14.jar;D:\repository_JAVAFX\commons-io\commons-io\2.16.1\commons-io-2.16.1.jar;D:\repository_JAVAFX\ch\qos\logback\logback-classic\1.4.14\logback-classic-1.4.14.jar;D:\repository_JAVAFX\org\openjfx\javafx-media\21.0.1\javafx-media-21.0.1-win.jar;D:\repository_JAVAFX\org\slf4j\slf4j-api\2.0.13\slf4j-api-2.0.13.jar;D:\repository_JAVAFX\org\kordamp\ikonli\ikonli-core\12.3.1\ikonli-core-12.3.1.jar;D:\repository_JAVAFX\org\openjfx\javafx-graphics\21.0.1\javafx-graphics-21.0.1-win.jar;D:\work\IPEZMCX\target\classes;D:\repository_JAVAFX\org\kordamp\bootstrapfx\bootstrapfx-core\0.4.0\bootstrapfx-core-0.4.0.jar;D:\repository_JAVAFX\org\apache\commons\commons-csv\1.11.0\commons-csv-1.11.0.jar;D:\repository_JAVAFX\eu\hansolo\tilesfx\17.0.0\tilesfx-17.0.0.jar;D:\repository_JAVAFX\com\alibaba\easyexcel-core\3.3.2\easyexcel-core-3.3.2.jar;D:\repository_JAVAFX\com\dlsc\formsfx\formsfx-core\11.6.0\formsfx-core-11.6.0.jar;D:\repository_JAVAFX\org\openjfx\javafx-fxml\21.0.1\javafx-fxml-21.0.1-win.jar;D:\repository_JAVAFX\org\kordamp\ikonli\ikonli-javafx\12.3.1\ikonli-javafx-12.3.1.jar -m com.example.ipezmcx/com.example.ipezmcx.HelloApplication 已连接到目标 VM, 地址: ''127.0.0.1:53025',传输: '套接字'' 9月 30, 2025 2:24:19 下午 javafx.fxml.FXMLLoader$ValueElement processValue 警告: Loading FXML document with JavaFX API of version 25 by JavaFX runtime of version 21.0.1 找到 2 个 csv 文件 14:24:22.833 [JavaFX Application Thread] DEBUG com.alibaba.excel.metadata.property.ExcelHeadProperty -- The initialization sheet/table 'ExcelHeadProperty' is complete , head kind is CLASS 14:24:22.848 [JavaFX Application Thread] DEBUG com.alibaba.excel.context.AnalysisContextImpl -- Initialization 'AnalysisContextImpl' complete 14:24:22.860 [JavaFX Application Thread] DEBUG com.alibaba.excel.util.SheetUtils -- The first is read by default. 14:24:22.860 [JavaFX Application Thread] DEBUG com.alibaba.excel.metadata.property.ExcelHeadProperty -- The initialization sheet/table 'ExcelHeadProperty' is complete , head kind is CLASS 14:24:22.861 [JavaFX Application Thread] DEBUG com.alibaba.excel.context.AnalysisContextImpl -- Began to read:com.alibaba.excel.read.metadata.holder.csv.CsvReadSheetHolder@5262ddc1 Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException at javafx.fxml@21.0.1/javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1858) at javafx.fxml@21.0.1/javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1726) at javafx.base@21.0.1/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86) at javafx.base@21.0.1/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:232) at javafx.base@21.0.1/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:189) at javafx.base@21.0.1/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59) at javafx.base@21.0.1/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58) at javafx.base@21.0.1/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) at javafx.base@21.0.1/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) at javafx.base@21.0.1/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) at javafx.base@21.0.1/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) at javafx.base@21.0.1/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) at javafx.base@21.0.1/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74) at javafx.base@21.0.1/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49) at javafx.base@21.0.1/javafx.event.Event.fireEvent(Event.java:198) at javafx.graphics@21.0.1/javafx.scene.Node.fireEvent(Node.java:8875) at javafx.controls@21.0.1/javafx.scene.control.Button.fire(Button.java:203) at javafx.controls@21.0.1/com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:207) at javafx.controls@21.0.1/com.sun.javafx.scene.control.inputmap.InputMap.handle(InputMap.java:274) at javafx.base@21.0.1/com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:247) at javafx.base@21.0.1/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80) at javafx.base@21.0.1/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:232) at javafx.base@21.0.1/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:189) at javafx.base@21.0.1/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59) at javafx.base@21.0.1/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58) at javafx.base@21.0.1/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) at javafx.base@21.0.1/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) at javafx.base@21.0.1/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) at javafx.base@21.0.1/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) at javafx.base@21.0.1/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) at javafx.base@21.0.1/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74) at javafx.base@21.0.1/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54) at javafx.base@21.0.1/javafx.event.Event.fireEvent(Event.java:198) at javafx.graphics@21.0.1/javafx.scene.Scene$MouseHandler.process(Scene.java:3984) at javafx.graphics@21.0.1/javafx.scene.Scene.processMouseEvent(Scene.java:1890) at javafx.graphics@21.0.1/javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2708) at javafx.graphics@21.0.1/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:411) at javafx.graphics@21.0.1/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:301) at java.base/java.security.AccessController.doPrivileged(AccessController.java:400) at javafx.graphics@21.0.1/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(GlassViewEventHandler.java:450) at javafx.graphics@21.0.1/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:424) at javafx.graphics@21.0.1/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:449) at javafx.graphics@21.0.1/com.sun.glass.ui.View.handleMouseEvent(View.java:551) at javafx.graphics@21.0.1/com.sun.glass.ui.View.notifyMouse(View.java:937) at javafx.graphics@21.0.1/com.sun.glass.ui.win.WinApplication._runLoop(Native Method) at javafx.graphics@21.0.1/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:185) at java.base/java.lang.Thread.run(Thread.java:1583) Caused by: java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:118) at java.base/java.lang.reflect.Method.invoke(Method.java:580) at com.sun.javafx.reflect.Trampoline.invoke(MethodUtil.java:72) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) at java.base/java.lang.reflect.Method.invoke(Method.java:580) at javafx.base@21.0.1/com.sun.javafx.reflect.MethodUtil.invoke(MethodUtil.java:270) at javafx.fxml@21.0.1/com.sun.javafx.fxml.MethodHelper.invoke(MethodHelper.java:84) at javafx.fxml@21.0.1/javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1853) ... 46 more Caused by: com.alibaba.excel.support.cglib.core.CodeGenerationException: java.lang.IllegalAccessException-->module com.example.ipezmcx does not open com.example.ipezmcx.dto to unnamed module @670002 at com.alibaba.excel.support.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:511) at com.alibaba.excel.support.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:363) at com.alibaba.excel.support.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:110) at com.alibaba.excel.support.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:108) at com.alibaba.excel.support.cglib.core.internal.LoadingCache$2.call(LoadingCache.java:54) at java.base/java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:317) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java) at com.alibaba.excel.support.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:61) at com.alibaba.excel.support.cglib.core.internal.LoadingCache.get(LoadingCache.java:34) at com.alibaba.excel.support.cglib.core.AbstractClassGenerator$ClassLoaderData.get(AbstractClassGenerator.java:134) at com.alibaba.excel.support.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:319) at com.alibaba.excel.support.cglib.beans.BeanMap$Generator.create(BeanMap.java:140) at easyexcel.core@3.3.2/com.alibaba.excel.util.BeanMapUtils.create(BeanMapUtils.java:29) at easyexcel.core@3.3.2/com.alibaba.excel.read.listener.ModelBuildEventListener.buildUserModel(ModelBuildEventListener.java:141) at easyexcel.core@3.3.2/com.alibaba.excel.read.listener.ModelBuildEventListener.invoke(ModelBuildEventListener.java:42) at easyexcel.core@3.3.2/com.alibaba.excel.read.listener.ModelBuildEventListener.invoke(ModelBuildEventListener.java:35) at easyexcel.core@3.3.2/com.alibaba.excel.read.processor.DefaultAnalysisEventProcessor.dealData(DefaultAnalysisEventProcessor.java:104) at easyexcel.core@3.3.2/com.alibaba.excel.read.processor.DefaultAnalysisEventProcessor.endRow(DefaultAnalysisEventProcessor.java:51) at easyexcel.core@3.3.2/com.alibaba.excel.analysis.csv.CsvExcelReadExecutor.dealRecord(CsvExcelReadExecutor.java:138) at easyexcel.core@3.3.2/com.alibaba.excel.analysis.csv.CsvExcelReadExecutor.execute(CsvExcelReadExecutor.java:77) at easyexcel.core@3.3.2/com.alibaba.excel.analysis.ExcelAnalyserImpl.analysis(ExcelAnalyserImpl.java:124) at easyexcel.core@3.3.2/com.alibaba.excel.ExcelReader.read(ExcelReader.java:66) at easyexcel.core@3.3.2/com.alibaba.excel.ExcelReader.read(ExcelReader.java:56) at easyexcel.core@3.3.2/com.alibaba.excel.read.builder.ExcelReaderSheetBuilder.doReadSync(ExcelReaderSheetBuilder.java:80) at com.example.ipezmcx/com.example.ipezmcx.utils.FileUtil.parseCsvWithEasyExcel(FileUtil.java:178) at com.example.ipezmcx/com.example.ipezmcx.service.IpeService.fileVL(IpeService.java:55) at com.example.ipezmcx/com.example.ipezmcx.service.IpeService.clcsv(IpeService.java:44) at com.example.ipezmcx/com.example.ipezmcx.HelloController.startYYOnClic(HelloController.java:47) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ... 53 more Caused by: java.lang.IllegalAccessException: module com.example.ipezmcx does not open com.example.ipezmcx.dto to unnamed module @670002 at java.base/java.lang.invoke.MethodHandles.privateLookupIn(MethodHandles.java:287) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) at java.base/java.lang.reflect.Method.invoke(Method.java:580) at com.alibaba.excel.support.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:505) ... 81 more
最新发布
10-01
<think>我们面对的问题是:模块 `com.example.ipezmcx` 没有将 `com.example.ipezmcx.dto` 包开放给未命名模块(`unnamed module`),导致在运行时出现异常。 根据Java模块系统的规则,如果我们的模块要允许其他模块(特别是未命名模块,即那些没有声明模块的JAR包)通过反射访问某个包,我们需要明确地使用`opens`指令。 在当前的`module-info.java`中,我们已经将`com.example.ipezmcx.dto`包开放给了所有模块(通过`opens com.example.ipezmcx.dto;`),但这并不包括未命名模块。因为默认情况下,`opens`指令只对显式声明的模块有效。为了允许未命名模块访问,我们需要使用`to`关键字指定未命名模块,即`ALL-UNNAMED`。 因此,我们需要将: `opens com.example.ipezmcx.dto;` 修改为: `opens com.example.ipezmcx.dto to ALL-UNNAMED;` 同时,考虑到我们在项目中使用EasyExcel这个库,它可能是一个未命名模块(如果它的JAR没有模块描述的话),所以这样做是必要的。 另外,我们还可以考虑将包开放给特定的模块(例如`easyexcel.core`),但由于EasyExcel可能依赖一些底层的字节码操作库(如cglib,这些库可能是未命名模块),所以开放给`ALL-UNNAMED`是最稳妥的方式。 修改后的`module-info.java`应该如下: ```java module com.example.ipezmcx { requires javafx.controls; requires javafx.fxml; requires javafx.web; requires org.slf4j; requires org.controlsfx.controls; requires com.dlsc.formsfx; requires org.kordamp.ikonli.javafx; requires org.kordamp.bootstrapfx.core; requires eu.hansolo.tilesfx; requires org.apache.commons.csv; requires easyexcel.core; // 开放dto包给未命名模块,以解决反射访问问题 opens com.example.ipezmcx.dto to ALL-UNNAMED; opens com.example.ipezmcx to javafx.fxml; exports com.example.ipezmcx; } ``` 这样修改后,未命名模块(也就是那些没有模块声明文件`module-info.class`的JAR包)就可以通过反射访问`com.example.ipezmcx.dto`包中的类了。 注意:这种方法会降低该包的安全性,因为它允许任何未命名模块反射访问。但在实际应用中,如果我们需要使用反射库(如EasyExcel),这是必要的。 如果还有其他包需要被反射访问,也应该同样处理。 另外,如果EasyExcel.core是一个自动模块(automatic module),那么它会被视为一个命名模块,我们可以通过`opens ... to easyexcel.core;`来开放。但考虑到EasyExcel可能内部使用了一些未命名模块的库(如cglib),所以开放给`ALL-UNNAMED`更保险。 最后,重新编译并运行项目,应该可以解决该异常。 ### 相关问题 1. 如何检查一个JAR文件是否是模块化的? 2. 在Java模块系统中,`opens`和`exports`有什么区别? 3. 什么是Java的未命名模块?它在模块系统中的地位如何? 4. 为什么EasyExcel需要访问我的DTO包? 5. 除了开放包给未命名模块,还有哪些方法可以解决模块访问问题? </think>### 解决JavaFX模块访问错误的完整指南 您遇到的 `module com.example.ipezmcx does not open com.example.ipezmcx.dto to unnamed module` 错误是由于Java模块系统对反射访问的限制导致的。以下是分步解决方案: #### 1. **核心修复:添加未命名模块访问权限** 在您的 `module-info.java` 中: ```diff module com.example.ipezmcx { // ...其他requires保持不变 opens com.example.ipezmcx.dto; + opens com.example.ipezmcx.dto to ALL-UNNAMED; // 关键修复 // ...其他配置 } ``` **原理**:`ALL-UNNAMED` 允许未模块化的库(如EasyExcel)通过反射访问您的DTO类[^1]。 #### 2. **完整模块配置优化** ```java module com.example.ipezmcx { requires javafx.controls; requires javafx.fxml; requires javafx.web; requires javafx.base; // 必须添加,支持BeanMap操作 requires org.slf4j; requires org.controlsfx.controls; requires com.dlsc.formsfx; requires org.kordamp.ikonli.javafx; requires org.kordamp.bootstrapfx.core; requires eu.hansolo.tilesfx; requires org.apache.commons.csv; requires easyexcel.core; // 层级化开放策略 opens com.example.ipezmcx to javafx.fxml; opens com.example.ipezmcx.dto to easyexcel.core, ALL-UNNAMED, org.apache.cglib; // EasyExcel的字节码依赖 opens com.example.ipezmcx.controllers to javafx.fxml; // 如有控制器 exports com.example.ipezmcx; } ``` #### 3. **运行时附加参数(可选)** 如果仍有问题,在VM选项中添加: ```bash --add-opens com.example.ipezmcx/com.example.ipezmcx.dto=ALL-UNNAMED --add-exports javafx.base/com.sun.javafx.beans=ALL-UNNAMED ``` #### 4. **验证解决方案** 1. 清理并重建项目:`mvn clean install` 2. 检查模块可见性: ```bash jar --describe-module --file=target/your-app.jar | grep "opens" ``` 3. 测试DTO类反射访问: ```java Class.forName("com.example.ipezmcx.dto.MyDTO").getDeclaredFields(); ``` ### 模块关系示意图 ```mermaid graph LR A[您的模块] -->|opens| B[未命名模块] A -->|requires| C[JavaFX base] A -->|opens| D[EasyExcel] B -->|包含| E[CGLIB] D -->|依赖| E C -->|提供| F[BeanMap API] E -->|需要访问| F ``` ### 根本原因分析 1. **未命名模块限制**:EasyExcel等非模块化库在Jigsaw模块系统中被视为"未命名模块" 2. **反射访问需求**:EasyExcel通过反射访问DTO类属性来生成Excel列映射 3. **JavaFX依赖**:`javafx.base` 模块提供BeanMap支持(必须显式声明) ### 相关问题 1. 如何诊断Java模块系统的访问违例(IllegalAccessError)的具体源头? 2. Java未命名模块和自动模块有何区别?哪种更适合兼容传统库? 3. 在模块化项目中如何安全地使用非模块化的第三方库(如EasyExcel)? 4. JavaFX 21的模块化配置有哪些特殊要求?特别是关于反射操作的 5. 如何验证特定包是否已被正确开放(opens)给其他模块? 6. 使用`jdeps --jdk-internals`分析模块依赖冲突的正确方法是什么? 7. 在大型JavaFX应用中,模块化架构与事件驱动设计如何协同工作[^4]? > 提示:使用`--illegal-access=warn`运行程序可显示所有非法反射访问位置,帮助精确定位问题模块。 [^1]: Java模块系统规范
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