我们假定基于 OpenJDK 11 + OpenJFX 11 的应用程序。该代码库是在单个Java模块中组织的(请参阅A Guide to Java 9 Modularity作为参考)。
直到现在,我将所有基于 JavaFX 的项目与Google的依赖项注入框架 Guice 结合在一起。对于模块化项目,这似乎不起作用...
SQLiteCompassApplication.java
public class SQLiteCompassApplication extends Application {
public static void main(String[] args) {
launch(args);
}
public void start(Stage stage) throws Exception {
Injector injector = Guice.createInjector(new MyModule());
FXMLLoader fxmlLoader = injector.getInstance(FXMLLoader.class);
try(InputStream fxmlStream = getclass().getResourceAsStream("/view/View.fxml")) {
Parent root = fxmlLoader.load(fxmlStream);
stage.setScene(new Scene(root));
stage.setTitle("SQLite Compass");
stage.setOnCloseRequest(event -> system.exit(0));
stage.show();
}
}
}
module-info.java
module org.x1c1b.sqlitecompass {
requires javafx.controls;
requires javafx.fxml;
requires com.google.guice;
exports org.x1c1b.sqlitecompass;
}
为了简化 Guice 配置,这意味着声明的 Guice 模块(与Java模块混淆的 not )不是粘贴但仍可用于非模块化项目。
执行此代码时,我收到以下异常:
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make field com.google.inject.Injector org.x1c1b.sqlitecompass.config.provider.FXMLLoaderProvider.injector accessible: module org.x1c1b.sqlitecompass does not "opens org.x1c1b.sqlitecompass.config.provider" to module com.google.guice
at java.base/java.lang.reflect.accessibleObject.checkCanSetaccessible(accessibleObject.java:340)
at java.base/java.lang.reflect.accessibleObject.checkCanSetaccessible(accessibleObject.java:280)
at java.base/java.lang.reflect.Field.checkCanSetaccessible(Field.java:176)
at java.base/java.lang.reflect.Field.setaccessible(Field.java:170)
at com.google.guice@4.2.2/com.google.inject.internal.SingleFieldInjector.<init>(SingleFieldInjector.java:38)
at com.google.guice@4.2.2/com.google.inject.internal.MembersInjectorStore.getInjectors(MembersInjectorStore.java:126)
at com.google.guice@4.2.2/com.google.inject.internal.MembersInjectorStore.createWithListeners(MembersInjectorStore.java:93)
at com.google.guice@4.2.2/com.google.inject.internal.MembersInjectorStore.access$000(MembersInjectorStore.java:36)
at com.google.guice@4.2.2/com.google.inject.internal.MembersInjectorStore$1.create(MembersInjectorStore.java:45)
at com.google.guice@4.2.2/com.google.inject.internal.MembersInjectorStore$1.create(MembersInjectorStore.java:41)
at com.google.guice@4.2.2/com.google.inject.internal.FailableCache$1.load(FailableCache.java:40)
at com.google.common@25.1-android/com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3444)
at com.google.common@25.1-android/com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2193)
at com.google.common@25.1-android/com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2152)
at com.google.common@25.1-android/com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2042)
... 39 more
Exception running application org.x1c1b.sqlitecompass.SQLiteCompassApplication
我可以通过将opens org.x1c1b.sqlitecompass.config.provider;
粘贴到module-info.java
来解决此问题。但这会导致进一步的例外...
我应该如何配置我的模块/ module-info.java
,使其通常与 Google Guice 一起使用?可以结合使用 Google Guice 和 Modularity 吗?
编辑
当我更改以下几行时,它似乎可以工作:
- 将{}声明了我的 Guice 模块的
exports org.x1c1b.sqlitecompass.config
添加到module-info.java
- 使用附加的VM选项
--add-opens java.base/java.lang=com.google.guice
执行程序
但是我想这是找到here而不是官方解决方案的解决方法。