public class AttributeDemo {
    // jdk6读取文件属性
    public static void getAttribute(String path) {
	File file = new File(path);
	System.out.println("最后一次更改日期："
		+ new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date(
			file.lastModified())));
	System.out.printf("文件大小:%.3fKB", file.length() / 1024.0);// 字节
	// System.out.printf("\n文件大小:%d字节", file.length());//字节
    }

    // jdk7读取文件属性方式1：
    public static void geFileInfo(String srcFile) throws IOException {
	Path path = Paths.get(srcFile);
	System.out.println(Files.isDirectory(path));
	System.out.println(Files.isExecutable(path));// 是否是可执行文件 true
	System.out.println(Files.isHidden(path));
	System.out.println(Files.isReadable(path));
	System.out.println(Files.isWritable(path));
	System.out.println(Files.isRegularFile(path));// 是否是常规文件
	System.out.println(Files.isSymbolicLink(path));// 是否是符号链接
	System.out.println(Files.size(path));// 
	System.out.println("默认获取的是中心时区（0）的时间："+ Files.getLastModifiedTime(path));// 2016-01-12T05:20:44.466277Z
	//格式化时间
	Date date = new Date(Files.getLastModifiedTime(path).toMillis());
	String time = DateUtil.dateToString(date, "yyyy-MM-dd HH:mm:ss");
	System.out.println("使用默认的东八区格式化：" + time);
	System.out.println(Files.getOwner(path));
    }

    // jdk7读取文件属性方式2：
    public static void getAttribute1(String path) {
	Path filePath = Paths.get(path);
	try {
	    BasicFileAttributes ra = Files.readAttributes(filePath, BasicFileAttributes.class);
	    System.out.println("CREATION TIME:" + ra.creationTime());
	    System.out.println("LAST ACCESS TIME:" + ra.lastAccessTime());
	    System.out.println("FILE SIZE:" + ra.size());// 字节
	    System.out.println("LAST MODIFIED:" + ra.lastModifiedTime());
	    System.out.println("IS SYSBOLIC LINK:" + ra.isSymbolicLink());
	    System.out.println("IS FOLDER:" + ra.isDirectory());
	    System.out.println("IS FILE:" + ra.isRegularFile());
	} catch (IOException e) {
	    e.printStackTrace();
	}
    }

    // jdk7读取文件属性方式3：
    public static void getAttribute2(String path) {
	Path fp = Paths.get(path);
	try {
	    Files.getAttribute(fp, "basic:size");
	    System.out.println("CREATION TIME:"+ Files.getAttribute(fp, "basic:creationTime"));//创建时间
	    System.out.println("LAST ACCESS TIME:"+ Files.getAttribute(fp, "basic:lastAccessTime"));//访问时间
	    System.out.println("FILE SIZE:"+ Files.getAttribute(fp, "basic:size").toString());
	    System.out.println("LAST MODIFIED:"+ Files.getAttribute(fp, "basic:lastModifiedTime"));//修改时间
	    System.out.println("IS SYSBOLIC LINK:"+ Files.getAttribute(fp, "basic:isSymbolicLink"));
	    System.out.println("IS FOLDER:"+ Files.getAttribute(fp, "basic:isDirectory"));
	    System.out.println("IS FILE:"+ Files.getAttribute(fp, "basic:isRegularFile"));
	} catch (IOException e) {
	    e.printStackTrace();
	}
    }

    
    //修改文件属性,比如修改文件的创建时间
    //同理可以修改文件的修改时间
//    Files.setAttribute(fp, "basic:lastAccessTime", fileTime);  
    //修改方式1：
    public static void  update1(String path){
	Path fp = Paths.get(path);  
        try{  
            BasicFileAttributes ra = Files.readAttributes(fp, BasicFileAttributes.class);  
            long currentTimeMillis = System.currentTimeMillis();  
            FileTime fileTime = FileTime.fromMillis(currentTimeMillis);  
            Files.setAttribute(fp, "basic:creationTime", fileTime);  
            FileTime creationTime = (FileTime)Files.getAttribute(fp, "basic:creationTime");  
            System.out.println("NEW CREATION TIME:" + creationTime.toString());  
            System.out.println("OLD CREATION TIME:" + ra.creationTime());  
        }catch(IOException e){  
           e.printStackTrace();
        }  
    }  
    
    //修改方式2：setLastModifiedTime直接修改文件的修改时间
    public static void  update2(String path){
	Path fp = Paths.get("D:\\test.txt");  
        try{  
            BasicFileAttributes ra = Files.readAttributes(fp, BasicFileAttributes.class);  
            long currentTimeMillis = System.currentTimeMillis();  
            FileTime fileTime = FileTime.fromMillis(currentTimeMillis);  
            //直接修改文件的 修改时间
            Files.setLastModifiedTime(fp, fileTime);  
//          Files.setAttribute(path, attribute, value, options)
            FileTime time = (FileTime)Files.getAttribute(fp, "basic:lastModifiedTime");  
            System.out.println("NEW LAST-MODIFIED-TIME:" + time.toString());  
            System.out.println("OLD LAST-MODIFIED-TIME:" + ra.lastModifiedTime());  
        }catch(IOException e){  
            e.printStackTrace();
        }  
    }  
   
    public static void main(String[] args) throws IOException {
	// getAttribute("C:\\Users\\Administrator\\Desktop\\模板.txt");
	// geFileInfo("C:\\Users\\Administrator\\Desktop\\模板.txt");
	// getAttribute1("C:\\Users\\Administrator\\Desktop\\模板.txt");
//	getAttribute2("C:\\Users\\Administrator\\Desktop\\模板.txt");
//	update1("C:\\Users\\Administrator\\Desktop\\模板.txt");
    }
}