commons-fileupload实现jsp上传实例(源码)

Apache Commons IO Version 2.4 Release Notes INTRODUCTION: 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 Commons IO library contains utility classes, stream implementations, file filters, file comparators, endian transformation classes, and much more. ============================================================================== Apache Commons IO Version 2.4 ============================================================================== New features and bug fixes. Changes in this version include: New features: o IO-269: Tailer locks file from deletion/rename on Windows. Thanks to sebb. o IO-333: Export OSGi packages at version 1.x in addition to 2.x. Thanks to fmeschbe. o IO-320: Add XmlStreamReader support for UTF-32. Thanks to ggregory. o IO-331: BOMInputStream wrongly detects UTF-32LE_BOM files as UTF-16LE_BOM files in method getBOM(). Thanks to ggregory. o IO-327: Add byteCountToDisplaySize(BigInteger). Thanks to ggregory. o IO-326: Add new FileUtils.sizeOf[Directory] APIs to return BigInteger. Thanks to ggregory, kinow. o IO-325: Add IOUtils.toByteArray methods to work with URL and URI. Thanks to raviprak. o IO-324: Add missing Charset sister APIs to method that take a String charset name. Thanks to raviprak. Fixed Bugs: o IO-336: Yottabyte (YB) incorrectly defined in FileUtils. Thanks to rleavelle. o IO-279: Tailer erroneously considers file as new. Thanks to Sergio Bossa, Chris Baron. o IO-335: Tailer#readLines - incorrect CR handling. o IO-334: FileUtils.toURLs throws NPE for null parameter; document the behavior. o IO-332: Improve tailer's reading performance. Thanks to liangly. o IO-279: Improve Tailer performance with buffered reads (see IO-332). o IO-329: FileUtils.writeLines uses unbuffered IO. Thanks to tivv. o IO-319: FileUtils.sizeOfDirectory follows symbolic links. Thanks to raviprak. Compatibility with 2.3: Binary compatible: Yes. Source compatible: Yes. Semantic compatible: Yes. Compatibility with 2.2 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 2.4 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 2.3 ============================================================================== Changes in this version include: New features: o IO-322: Add and use class Charsets. Thanks to ggregory. o IO-321: ByteOrderMark UTF_32LE is incorrect. Thanks to ggregory. o IO-318: Add Charset sister APIs to method that take a String charset name. Thanks to ggregory. Compatibility with 2.2 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 2.3 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 2.2 ============================================================================== Changes in this version include: New features: o Add IOUTils.toBufferedReader(Reader) Issue: IO-313. Thanks to ggregory. o Allow applications to provide buffer (or size) for copyLarge methods. Issue: IO-308. Thanks to Manoj Mokashi. o New copyLarge() method in IOUtils that takes additional offset, length arguments Issue: IO-305. Thanks to Manoj Mokashi. o Use terabyte (TB), petabyte (PB) and exabyte (EB) in FileUtils.byteCountToDisplaySize(long size) Issue: IO-287. Thanks to Ron Kuris, Gary Gregory. o FileUtils.listFiles() doesn't return directories Issue: IO-173. Thanks to Marcos Vin�cius da Silva. o CharSequenceInputStream to efficiently stream content of a CharSequence Issue: IO-297. Thanks to Oleg Kalnichevski. o The second constructor of Tailer class does not pass 'delay' to the third one Issue: IO-304. Thanks to liangly. o TeeOutputStream does not call branch.close() when main.close() throws an exception Issue: IO-303. Thanks to fabian.barney. o ArrayIndexOutOfBoundsException in BOMInputStream when reading a file without BOM multiple times Issue: IO-302. Thanks to jsteuerwald, detinho. o Add IOUtils.closeQuietly(Selector) necessary Issue: IO-301. Thanks to kaykay.unique. o IOUtils.closeQuietly() should take a ServerSocket as a parameter Issue: IO-292. Thanks to sebb. o Add read/readFully methods to IOUtils Issue: IO-290. Thanks to sebb. o Supply a ReversedLinesFileReader Issue: IO-288. Thanks to Georg Henzler. o Add new function FileUtils.directoryContains. Issue: IO-291. Thanks to ggregory. o FileUtils.contentEquals and IOUtils.contentEquals - Add option to ignore "line endings" Added contentEqualsIgnoreEOL methods to both classes Issue: IO-275. Thanks to CJ Aspromgos. Fixed Bugs: o IOUtils.read(InputStream/Reader) ignores the offset parameter Issue: IO-311. Thanks to Robert Muir. o CharSequenceInputStream(CharSequence s, Charset charset, int bufferSize) ignores bufferSize Issue: IO-312. o FileUtils.moveDirectoryToDirectory removes source directory if destination is a subdirectory Issue: IO-300. o ReaderInputStream#read(byte[] b, int off, int len) should check for valid parameters Issue: IO-307. o ReaderInputStream#read(byte[] b, int off, int len) should always return 0 for length == 0 Issue: IO-306. o "FileUtils#deleteDirectoryOnExit(File)" does not work Issue: IO-276. Thanks to nkami. o BoundedInputStream.read() treats max differently from BoundedInputStream.read(byte[]...) Issue: IO-273. Thanks to sebb. o Various methods of class 'org.apache.commons.io.FileUtils' incorrectly suppress 'java.io.IOException' Issue: IO-298. Thanks to Christian Schulte. Changes: o ReaderInputStream optimization: more efficient reading of small chunks of data Issue: IO-296. Thanks to Oleg Kalnichevski. Compatibility with 2.1 and 1.4: Binary compatible: Yes Source compatible: Yes Semantic compatible: Yes. Check the bug fixes section for semantic bug fixes Commons IO 2.2 requires a minimum of JDK 1.5. Commons IO 1.4 requires a minimum of JDK 1.3. ============================================================================== Apache Commons IO Version 2.1 ============================================================================== New features: o Use standard Maven directory layout Issue: IO-285. Thanks to ggregory. o Add IOUtils API toString for URL and URI to get contents Issue: IO-284. Thanks to ggregory. o Add API FileUtils.copyFile(File input, OutputStream output) Issue: IO-282. Thanks to ggregory. o FileAlterationObserver has no getter for FileFilter Issue: IO-262. o Add FileUtils.getFile API with varargs parameter Issue: IO-261. o Add new APPEND parameter for writing string into files Issue: IO-182. o Add new read method "toByteArray" to handle InputStream with known size. Issue: IO-251. Thanks to Marco Albini. Fixed Bugs: o Dubious use of mkdirs() return code Issue: IO-280. Thanks to sebb. o ReaderInputStream enters infinite loop when it encounters an unmappable character Issue: IO-277. o FileUtils.moveFile() JavaDoc should specify FileExistsException thrown Issue: IO-264. o ClassLoaderObjectInputStream does not handle Proxy classes Issue: IO-260. o Tailer returning partial lines when reaching EOF before EOL Issue: IO-274. Thanks to Frank Grimes. o FileUt