java - 以编程方式创建源文件夹

Question

我尝试使用以下代码在 java 项目中创建一个源文件夹。

    IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
    IProject project = root.getProject(projectName);
    project.create(null);
    project.open(null);
    IProjectDescription description = project.getDescription();
    description.setNatureIds(new String[] { JavaCore.NATURE_ID });
    project.setDescription(description, null);
    IJavaProject javaProject = JavaCore.create(project); 
    IFolder sourceFolder = project.getFolder("src");
    sourceFolder.create(false, true, null);
    IPackageFragmentRoot root = javaProject.getPackageFragmentRoot(sourceFolder);
    IClasspathEntry[] oldEntries = javaProject.getRawClasspath();
    IClasspathEntry[] newEntries = new IClasspathEntry[oldEntries.length + 1];
    System.arraycopy(oldEntries, 0, newEntries, 0, oldEntries.length);
    newEntries[oldEntries.length] = JavaCore.newSourceEntry(root.getPath());
    javaProject.setRawClasspath(newEntries, null);

但它在最后一行给出了 Java 模型异常:javaProject.setRawClasspath(newEntries, null);

Java Model Exception: Java Model Status [Cannot nest 'ProjectName/src' inside 'ProjectName'. To enable the nesting exclude 'src/' from 'ProjectName']
    at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:784)
    at org.eclipse.jdt.internal.core.JavaProject.setRawClasspath(JavaProject.java:3102)
    at org.eclipse.jdt.internal.core.JavaProject.setRawClasspath(JavaProject.java:3064)
    at org.eclipse.jdt.internal.core.JavaProject.setRawClasspath(JavaProject.java:3117)

谁能告诉我如何以编程方式创建源文件夹？

Answer 1

当您调用 javaProject.getPackageFragmentRoot() 时，您使用自身作为源文件夹为项目创建了构建路径。跳过它，您可以从您的 IFolder 实例中获取项目相对路径并从中创建您的 newSourceEntry。