java的IO流的工具包:作用：复制单个文件（文件对文件）/ 复制目录或文件（多个文件）

Apache Commons IO Version 2.6 Release Notes INTRODUCTION: Apache Commons IO is a package of Java utility classes like java.io. Classes in this package are considered to be so standard and of such high reuse as to justify existence in java.io. The Apache Commons IO library contains utility classes, stream implementations, file filters, file comparators, endian transformation classes, and much more. Apache Commons IO 2.6 requires at least Java 7 to build and run. DEPRECATIONS ============ All closeQuietly overloads in org.apache.commons.io.IOUtils have been deprecated. Use the try-with-resources statement or handle suppressed exceptions manually. The class org.apache.commons.io.FileSystemUtils has been deprecated. Use equivalent methods in java.nio.file.FileStore instead, e.g. Files.getFileStore(Paths.get("/home")).getUsableSpace() or iterate over FileSystems.getDefault().getFileStores(). COMPATIBILITY WITH JAVA 9 ================== The MANIFEST.MF now contains an additional entry: Automatic-Module-Name: org.apache.commons.io This should make it possible to use Commons IO 2.6 as a module in the Java 9 module system. For more information see the corresponding issue: https://issues.apache.org/jira/browse/IO-551 Building Commons IO 2.6 should work out of the box with the latest Java 9 release. Please report any Java 9 related issues at: https://issues.apache.org/jira/browse/IO NEW FEATURES ============ o IO-551: Add Automatic-Module-Name MANIFEST entry for Java 9 compatibility. o IO-367: Add convenience methods for copyToDirectory. Thanks to James Sawle. o IO-493: Add infinite circular input stream. Thanks to Piotr Turski. o IO-507: Add a ByteOrderUtils class. o IO-518: Add ObservableInputStream. o IO-519: Add MessageDigestCalculatingInputStream. o IO-513: Add convenience methods for reading class path resources. Thanks to Behrang Saeedzadeh. FIXED BUGS ========== o IO-546: ClosedOutputStream#flush should throw. Thanks to Tomas Celaya. o IO-550: Documentation issue, fix 404 Javadoc issues in the description page. Thanks to Jimi Adrian. o IO-442: Javadoc contradictory for FileFilterUtils.ageFileFilter(cutoff) and the filter it constructs: AgeFileFilter(cutoff). Thanks to Simon Robinson. o IO-534: FileUtilTestCase.testForceDeleteDir() should not delete testDirectory parent. o IO-528: Fix Tailer.run race condition runaway logging. Thanks to Dave Moten. o IO-483: getPrefixLength return -1 if unix file contains colon. Thanks to Marko Vasic. o IO-520: FileUtilsTestCase#testContentEqualsIgnoreEOL fails on Windows. o IO-516: .gitattributes not correctly applied. Thanks to Jason Pyeron. o IO-515: Allow Specifying Initial Buffer Size of DeferredFileOutputStream. Thanks to Brett Lounsbury, Gary Gregory. o IO-512: ThresholdingOutputStream.thresholdReached() results in FileNotFoundException. Thanks to Ralf Hauser. o IO-511: After a few unit tests, a few newly created directories not cleaned completely. Thanks to Ahmet Celik. o IO-502: Exceptions are suppressed incorrectly when copying files. Thanks to Christian Schulte. o IO-503: Update platform requirement to Java 7. o IO-537: BOMInputStream shouldn't sort array of BOMs in-place. Thanks to Borys Zibrov. CHANGES ======= o IO-553: Make code style of hasBOM() consistent with getBOMCharsetName(). Thanks to Michael Ernst. o IO-542: FileUtils#readFileToByteArray: optimize reading of files with known size. Thanks to Ilmars Poikans. o IO-547: Throw a IllegalArgumentException instead of NullPointerException in FileSystemUtils.freeSpaceWindows(). Thanks to Nikhil Shinde, Michael Ernst, Gary Greory. o IO-506: Deprecate methods FileSystemUtils.freeSpaceKb(). Thanks to Christian Schulte. o IO-505: Make LineIterator implement Closeable to support try-with-resources statements. Thanks to Christian Schulte. o IO-504: Deprecated of all IOUtils.closeQuietly() methods and use try-with-resources internally. Thanks to Christian Schulte. REMOVED ======= o IO-514: Remove org.apache.commons.io.Java7Support. COMPATIBILITY WITH OLDER VERSIONS ================================= Compatibility with 2.5: Binary compatible: Yes. Source compatible: Yes. Semantic compatible: Yes. Compatibility with 2.6 and 1.4: Binary compatible: Yes. Source compatible: No, see the rare case in https://issues.apache.org/jira/browse/IO-318. Semantic compatible: No, see the rare case in https://issues.apache.org/jira/browse/IO-318. Commons IO 2.6 requires JDK 1.7 or later. Commons IO 2.5 requires JDK 1.6 or later. Commons IO 2.4 requires JDK 1.6 or later. Commons IO 2.3 requires JDK 1.6 or later. Commons IO 2.2 requires JDK 1.5 or later. Commons IO 1.4 requires JDK 1.3 or later. ============================================================================== Apache Commons IO Version 2.5 ============================================================================== New features and bug fixes. Changes in this version include: New features: o IO-487: Add ValidatingObjectInputStream for controlled deserialization o IO-471: Support for additional encodings in ReversedLinesFileReader Thanks to Leandro Reis. o IO-425: Setter method for threshold on ThresholdingOutputStream Thanks to Craig Swank. o IO-406: Introduce new class AppendableOutputStream Thanks to Niall Pemberton. o IO-459: Add WindowsLineEndingInputStream and UnixLineEndingInputStream. Thanks to Kristian Rosenvold. o IO-457: Add a BoundedReader, a wrapper that can be used to constrain access to an underlying stream when used with mark/reset - to avoid overflowing the mark limit of the underlying buffer. Thanks to Kristian Rosenvold. o IO-426: Add API IOUtils.closeQuietly(Closeable...) o IO-410: Readfully() That Returns A Byte Array Thanks to Beluga Behr. o IO-395: Overload IOUtils buffer methods to accept buffer size Thanks to Beluga Behr. o IO-382: Chunked IO for large arrays. Added writeChunked(byte[], OutputStream) and writeChunked(char[] Writer) Added ChunkedOutputStream, ChunkedWriter o IO-233: Add Methods for Buffering Streams/Writers To IOUtils Added overloaded buffer() methods - see also IO-330 o IO-330: IOUtils#toBufferedOutputStream/toBufferedWriter to conditionally wrap the output Added overloaded buffer() methods - see also IO-233 o IO-381: Add FileUtils.copyInputStreamToFile API with option to leave the source open. See copyInputStreamToFile(final InputStream source, final File destination, boolean closeSource) o IO-379: CharSequenceInputStream - add tests for available() Fix code so it really does reflect a minimum available. o IO-346: Add ByteArrayOutputStream.toInputStream() o IO-341: A constant for holding the BOM character (U+FEFF) o IO-361: Add API FileUtils.forceMkdirsParent(). o IO-360: Add API Charsets.requiredCharsets(). o IO-359: Add IOUtils.skip and skipFully(ReadableByteChannel, long). Thanks to yukoba. o IO-358: Add IOUtils.read and readFully(ReadableByteChannel, ByteBuffer buffer). Thanks to yukoba. o IO-353: Add API IOUtils.copy(InputStream, OutputStream, int) Thanks to ggregory. o IO-349: Add API with array offset and length argument to FileUtils.writeByteArrayToFile. Thanks to scop. o IO-348: Missing information in IllegalArgumentException thrown by org.apache.commons.io.FileUtils#validateListFilesParameters. Thanks to plcstpierre. o IO-345: Supply a hook method allowing Tailer actively determining stop condition. Thanks to mkresse. o IO-437: Make IOUtils.EOF public and reuse it in various classes. Fixed Bugs: o IO-446: adds an endOfFileReached method to the TailerListener Thanks to Jeffrey Barrus. o IO-484: FilenameUtils should handle embedded null bytes Thanks to Philippe Arte