В настоящее время мы пишем, как показано ниже. Есть ли какой -нибудь лучше < /strong> способ сделать то же самое? < /P>
Код: Выделить всё
public void writeToFile(Long limit) throws IOException{
String fileName = "/xyz/test.txt";
File file = new File(fileName);
FileOutputStream fileOutputStream = new FileOutputStream(file, true);
FileChannel fileChannel = fileOutputStream.getChannel();
ByteBuffer byteBuffer = null;
String messageToWrite = null;
for(int i=1; i
Изменить: Пробое оба параметра. Ниже приведены результаты. < /P>
@Test
public void testWritingStringToFile() {
DiagnosticLogControlManagerImpl diagnosticLogControlManagerImpl = new DiagnosticLogControlManagerImpl();
try {
File file = diagnosticLogControlManagerImpl.createFile();
long startTime = System.currentTimeMillis();
writeToFileNIOWay(file);
//writeToFileIOWay(file);
long endTime = System.currentTimeMillis();
System.out.println("Total Time is " + (endTime - startTime));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
*
* @param limit
* Long
* @throws IOException
* IOException
*/
public void writeToFileNIOWay(File file) throws IOException {
FileOutputStream fileOutputStream = new FileOutputStream(file, true);
FileChannel fileChannel = fileOutputStream.getChannel();
ByteBuffer byteBuffer = null;
String messageToWrite = null;
for (int i = 1; i < 1000000; i++) {
messageToWrite = "This is a test üüüüüüööööö";
byteBuffer = ByteBuffer.wrap(messageToWrite.getBytes(Charset
.forName("ISO-8859-1")));
fileChannel.write(byteBuffer);
}
}
/**
*
* @param limit
* Long
* @throws IOException
* IOException
*/
public void writeToFileIOWay(File file) throws IOException {
FileOutputStream fileOutputStream = new FileOutputStream(file, true);
BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(
fileOutputStream, 128 * 100);
String messageToWrite = null;
for (int i = 1; i < 1000000; i++) {
messageToWrite = "This is a test üüüüüüööööö";
bufferedOutputStream.write(messageToWrite.getBytes(Charset
.forName("ISO-8859-1")));
}
bufferedOutputStream.flush();
fileOutputStream.close();
}
private File createFile() throws IOException {
File file = new File(FILE_PATH + "test_sixth_one.txt");
file.createNewFile();
return file;
}
Использование буферизации: 563 мс
Подробнее здесь: https://stackoverflow.com/questions/736 ... g-java-nio