当我运行gradle“ run”任务时，我无法完成Java的编译，因为我得到了许多形式的错误：“错误：所有javaFX导入的包javafx.XXXXX不存在”。我的测试项目可以很好地导入，尽管它没有使用gradle进行编译。
我正在尝试在Ubuntu VM上运行客户端程序“ BilliardViewer”。它是通过许多程序员的手中完成的，其中一些程序员可能没有那么多的编码经验。我不确定这是gradle问题，eclipse问题，库问题还是编码问题。我知道JavaFX库已正确安装，因为我可以运行单独的HelloWorld jfx程序。两者之间构建路径的唯一区别是BilliardViewer程序具有一些外部依赖性，因为它使用C ++和Java。该程序目前在他的Mac上运行，我相信MacOS Mojave。
我的HelloWorld程序有效。
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
...
@Override
public void start(Stage primaryStage) {
primaryStage.setTitle("Hello World!");
Button btn = new Button();
btn.setText("Say 'Hello World'");
btn.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent event) {
System.out.println("Hello World!");
}
});
StackPane root = new StackPane();
root.getChildren().add(btn);
primaryStage.setScene(new Scene(root, 300, 250));
primaryStage.show();
}
BilliardViewer程序中的某些代码不起作用（Colors.java）
import java.util.Optional;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Tooltip;
import javafx.scene.layout.GridPane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;
...
public ColorPicker(final int x, final int y) {
stage.setX(x);
stage.setY(y);
stage.focusedProperty().addListener((obs, wasFocused, isNowFocused) -> {
if (!isNowFocused) {
stage.hide();
}
});
stage.setScene(new Scene(grid));
stage.setTitle("SO COLORFUL");
grid.setPadding(new Insets(10));
for (int row = 0; row < ROWS; row++) {
for (int col = 0; col < COLS; col++) {
final Color currentColor = color[row][col];
final Rectangle rect = new Rectangle(RECT_SIZE, RECT_SIZE, currentColor);
rect.setOnMouseClicked(event -> {
selectedColor = Optional.of(currentColor);
stage.close();
});
Tooltip.install(rect, new Tooltip(Colors.colorMap.get(currentColor).get()));
grid.add(rect, col, row);
}
}
}
我希望该版本至少能够编译Java，因为完全相同的代码可以在客户端的Mac笔记本电脑上正常编译。
编辑：build.gradle
apply plugin: 'cpp'
apply plugin: TestingModelBasePlugin
//apply plugin: 'findbugs'
mainClassName = 'billiards.viewer.Main'
repositories {
jcenter()
}
dependencies {
// When getting the version number for a dependency, don't go to Maven Central and
// simply search for the package you want. You will often find many versions of the
// package, most of which are unofficial or out-of-date. Instead, go to the website
// of the package, and they will usually give you the correct Maven information there.
compile 'org.eclipse.collections:eclipse-collections-api:9.2.0' // All the interfaces
compile 'org.eclipse.collections:eclipse-collections:9.2.0' // The actual classes
compile 'com.google.guava:guava:25.1-jre'
compile 'org.apache.commons:commons-math3:3.6.1'
compile 'org.apache.commons:commons-lang3:3.7' // can remove this now I think?
compile 'org.apache.commons:commons-io:1.3.2'
compile 'io.javaslang:javaslang:2.0.5'
compile 'org.xerial:sqlite-jdbc:3.23.1'
compile 'net.java.dev.jna:jna:4.5.1'
testImplementation 'org.junit.jupiter:junit-jupiter-api:5.2.0'
testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.2.0'
}
test {
useJUnitPlatform()
}
compileJava {
options.compilerArgs << '-Xlint' << '-Werror'
}
jar {
baseName = 'billiard-viewer'
manifest.attributes 'Main-Class': 'billiards.viewer.Main'
}
sourceSets {
main {
java {
srcDir 'src/java'
}
//resources {
//srcDir 'css'
//}
}
}
applicationDefaultJvmArgs = ['-server', '-Djna.library.path=./build/libs/backend/shared', '-Xss10000m']
sourceCompatibility = 1.8
targetCompatibility = 1.8
model {
components {
backend(NativeLibrarySpec) {
binaries.all {
cppCompiler.define "NDEBUG"
cppCompiler.args '-O3', '-march=native', '-flto', '-ftrapv'
linker.args '-lgmp', '-lmpfr', '-lmpfi', '-lsqlite3', '-ltbb'
if (toolChain in Clang) {
cppCompiler.args '-Weverything', '-Werror',
'-Wno-padded', '-Wno-comma',
'-Wno-exit-time-destructors', '-Wno-global-constructors',
'-Wno-c++98-compat', '-Wno-c++98-compat-pedantic',
'-std=c++14'
}
if (toolChain in Gcc) {
cppCompiler.args '-Wall', '-Wextra', '-Wpedantic', '-Werror',
'-Wno-c++11-compat', '-Wno-c++14-compat',
'-std=c++14'
}
checkedBy $.tasks.testBackend
}
}
test(NativeExecutableSpec) {
sources.cpp {
lib library: 'backend', linkage: 'static'
}
binaries.all {
cppCompiler.define "NDEBUG"
cppCompiler.args '-O3', '-march=native', '-flto', '-ftrapv'
linker.args '-lgmp', '-lmpfr', '-lmpfi', '-lboost_unit_test_framework'
if (toolChain in Clang) {
cppCompiler.args '-Weverything', '-Werror',
'-Wno-padded', '-Wno-comma',
'-Wno-disabled-macro-expansion', '-Wno-global-constructors',
'-Wno-c++98-compat', '-Wno-c++98-compat-pedantic',
'-std=c++14'
}
if (toolChain in Gcc) {
cppCompiler.args '-Wall', '-Wextra', '-Wpedantic', '-Werror',
'-Wno-c++11-compat', '-Wno-c++14-compat',
'-std=c++14'
}
}
}
}
}
task testBackend(type: Exec, dependsOn: 'testExecutable') {
commandLine 'build/exe/test/test'
// save the results here
//standardOutput = new FileOutputStream('build/test-results/test.out')
//errorOutput = new FileOutputStream('build/test-results/test.err')
}
// Make sure the C++ code is up to date when running the Java program
run.dependsOn "backendSharedLibrary"
//run.dependsOn "coverExecutable"
run.doFirst {
// Having this hardcoded isn't the best, put it works for now
//environment 'LD_PRELOAD', '/usr/local/Cellar/jemalloc/5.0.1/lib/libjemalloc.so.2'
//commandLine "./test.fish"
}
答案 0 :(得分：0)
根据stackoverflow的介绍，我最终通过在我的eclipse项目中添加了gradle.properties文件来解决了这个问题，该文件向gradle显示了在何处查找JDK。因此，为了澄清起见，我必须安装一个JDK，并将gradle指向该JDK。