从文档和示例开始,我一直在尝试使用 JDK7 中的新通配符功能
我可以获得诸如"glob:*.dat"
与
Files.walkFileTree(startingDir, finder);
示例,但我一直无法使"**"
语法正常工作。我希望能够创建类似的东西:
matcher = FileSystems.getDefault().getPathMatcher("glob:" + "foo/**/bar/*.dat");
并会感谢一个简单的例子。我正在使用 Windows 7。
更新:@Oleg 和@JBNizet 清楚地表明“/”语法是独立于操作系统的。请注意,Javadocs建议依赖于操作系统的语法也是可能的(?必需的)
仍然存在的问题:已采取@Nizet 并编辑如下:
@Test
public void testStackoverflowGlobber() throws IOException {
final PathMatcher matcher =
FileSystems.getDefault().getPathMatcher("glob:*.cml");
Files.walkFileTree(Paths.get("d:/petermr-workspace/jumbo-converters/jumbo-converters-cli/src/test/resources"), new SimpleFileVisitor<Path>() {
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
System.out.println("try>> "+file);
if (matcher.matches(file)) {
System.out.println("MATCHES>>"+file);
}
return FileVisitResult.CONTINUE;
}
@Override
public FileVisitResult visitFileFailed(Path file, IOException exc) throws IOException {
return FileVisitResult.CONTINUE;
}
});
}
这给出了如下输出:
try>> d:\petermr-workspace\jumbo-converters\jumbo-converters-cli\src\test\resources\examples\cdx\r19.cdx
try>> d:\petermr-workspace\jumbo-converters\jumbo-converters-cli\src\test\resources\examples\cdx\r19.cdxml
try>> d:\petermr-workspace\jumbo-converters\jumbo-converters-cli\src\test\resources\examples\cdx\r19.cml
try>> d:\petermr-workspace\jumbo-converters\jumbo-converters-cli\src\test\resources\examples\cdx\r19.ref.cdxml
try>> d:\petermr-workspace\jumbo-converters\jumbo-converters-cli\src\test\resources\examples\cdx\r19.ref.cml
try>> d:\petermr-workspace\jumbo-converters\jumbo-converters-cli\src\test\resources\examples\cif\aa2004.cml
但没有匹配的证据