Apache Commons Compress 1.9 發布
Apache Commons Compress 1.9 發布,此版本現已提供下載,在沒有 GZIP 的情況下支持原始壓縮流;修復了 7z 和 tar 包相關的 bug;改進了對 Java 庫 XZ 的檢測。
更新內容如下:
新特性 o Added support for DEFLATE streams without any gzip framing. Issue: COMPRESS-263. Thanks to Matthias Stevens.Bugs 修復 o When reading 7z files unknown file properties and properties of type kDummy are now ignored. Issue: COMPRESS-287. o Expanding 7z archives using LZMA compression could cause an EOFException. Issue: COMPRESS-286. o Long-Name and -link or PAX-header entries in TAR archives always had the current time as last modfication time, creating archives that are different at the byte level each time an archive was built. Issue: COMPRESS-289. Thanks to Bob Robertson.
改進 o Checking for XZ for Java may be expensive. The result will now be cached outside of an OSGi environment. You can use the new XZUtils#setCacheXZAvailability to overrride this default behavior. Issue: COMPRESS-285.</pre>
Commons Compress 用以實現將文件壓縮或解壓成 tar、zip、bzip2 等格式。
下面代碼將文件壓縮成zip格式:
</div>ArArchiveEntry entry = new ArArchiveEntry(name, size); arOutput.putArchiveEntry(entry); arOutput.write(contentOfEntry); arOutput.closeArchiveEntry();
Zip文件的解壓縮:
ArArchiveEntry entry = (ArArchiveEntry) arInput.getNextEntry(); byte[] content = new byte[entry.getSize()]; LOOP UNTIL entry.getSize() HAS BEEN READ { arInput.read(content, offset, content.length - offset); }
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