In most cases, the methods defined here will delegate to the associated file system provider to perform the file operations.
下面就通过几个简单的操作演示NIO的强大功能吧！
package test.jse.io.nio2.demo1;
import java.io.FileOutputStream;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.List;
public class NIO2Test
{
public static void main(String[] args) throws Exception
{
//testPath();
testFiles();
}
public static void testPath()
{
//以当前路径创建Path对象
Path path=Paths.get(".");
System.out.println("当前Path对象里包含的路径数量: "+path.getNameCount());
System.out.println("当前Path对象的根路径: "+path.getRoot());
//获取path对应的绝对路径
Path absolutePath=path.toAbsolutePath();
System.out.println("path对应的绝对路径: "+absolutePath);
System.out.println("当前absolutePath对象里包含的路径数量: "+absolutePath.getNameCount());
}
public static void testFiles() throws Exception
{
//复制文件
Files.copy(Paths.get("src/test/jse/io/nio2/demo1/NIO2Test.java"),new FileOutputStream("src/test/jse/io/nio2/demo1/new_NIO2Test.java"));
//判断NIO2Test.java文件是否为隐藏文件
System.out.println("NIO2Test.java文件是否为隐藏文件:\t"+Files.isHidden(Paths.get("src/test/jse/io/nio2/demo1/NIO2Test.java")));
//一次读取NIO2Test.java文件的所有行
List<String> lines=Files.readAllLines(Paths.get("src/test/jse/io/nio2/demo1/NIO2Test.java"), Charset.forName("gbk"));
for (String line : lines)
{
System.out.println(line);
}
}
}原文地址：http://blog.csdn.net/sinat_26342009/article/details/45895887
