apache.commons.io 노트 1
3707 단어 commons
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1.4 。
public static void main(String[] args) throws IOException {
// org.apache.commons.io.comparator.PathFileComparator
// org.apache.commons.io.comparator.LastModifiedFileComparator
// org.apache.commons.io.comparator.SizeFileComparator
// org.apache.commons.io.filefilter.SuffixFileFilter
// org.apache.commons.io.input.NullInputStream
// org.apache.commons.io.input.AutoCloseInputStream
// org.apache.commons.io.FilenameUtils.getExtension(filename)
// org.apache.commons.io.FilenameUtils.removeExtension(filename)
// org.apache.commons.io.FilenameUtils.getFullPathNoEndSeparator(filename)
// org.apache.commons.io.FilenameUtils.indexOfExtension(filename)
long f = org.apache.commons.io.FileSystemUtils.freeSpaceKb("c:");
System.out.println(f);
//org.apache.commons.io.FileSystemUtils cmd ,List performCommand(String[] cmdAttribs, int max) throws IOException {
}
public static void test_FileUtils() throws IOException {
long begin = System.currentTimeMillis();
// String content = org.apache.commons.io.FileUtils.readFileToString(new File("c:/a.txt"), "UTF-8");
// org.apache.commons.io.FileUtils.writeByteArrayToFile(file, data)
// org.apache.commons.io.FileUtils.cleanDirectory(arg0)
// org.apache.commons.io.FileUtils.copyDirectory(srcDir, destDir)
// org.apache.commons.io.FileUtils.copyURLToFile(arg0, arg1)
// org.apache.commons.io.FileUtils.copyFileToDirectory(srcFile, destDir)
// org.apache.commons.io.FileUtils.lineIterator(file)
// org.apache.commons.io.FileUtils.moveDirectory(srcDir, destDir)
// org.apache.commons.io.FileUtils.moveFile(srcFile, destFile)
//
// org.apache.commons.io.FileUtils.touch(arg0)
// org.apache.commons.io.FileUtils.writeLines(file, lines)
// org.apache.commons.io.FileUtils.writeStringToFile(file, data, encoding)
// 58 , 6s
long dirsize = org.apache.commons.io.FileUtils.sizeOfDirectory(new File("I:/ / "));
long end = System.currentTimeMillis();
System.out.println(dirsize + " " + ((end - begin)/1000) + "s");
FileUtils.checksumCRC32(file);
System.out.println(FileUtils.byteCountToDisplaySize(584235));// M K
//FileUtils.contentEquals(file1, file2)
FileUtils.cleanDirectory(directory);
FileUtils.writeStringToFile(file, data, encoding);
File destination=new File("c:/new.html");
URL source = new URL("http://news.baidu.com/");
FileUtils.copyURLToFile(source, destination);
FileUtils.isFileNewer(file, date);
FileUtils.isFileOlder(file, reference);
FileUtils.isFileOlder(file, timeMillis);
FileUtils.iterateFiles(directory, fileFilter, dirFilter);
LineIterator i = FileUtils.lineIterator(new File("c:/abcd.txt"));
while(i.hasNext()){
System.out.println(i.nextLine());
}
FileUtils.listFiles(directory, extensions, recursive);
FileUtils.listFiles(directory, fileFilter, dirFilter);
FileUtils.readFileToString(file);
System.out.println(FileUtils.sizeOfDirectory(new File("E:/photo")));//
System.out.println(FileSystemUtils.freeSpaceKb("E:")+"k");
System.out.println(freeSpaceWindows("E:"));
}