filedeal.java

自己写的一个struts+spring+hibernate测试程序

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

/*
 * Created on 2005-12-20
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */

/**
 * @author Administrator
 * 
 * TODO To change the template for this generated type comment go to Window -
 * Preferences - Java - Code Style - Code Templates
 */
public class FileDeal {

	public static void main(String[] args) {
		//FileDeal f=new FileDeal();
		//File file = new File("C:\\test\\J2EE");
		//System.out.println(file.getAbsolutePath()+" "+file.getPath());
		
		//FileDeal.delNotEmptyDir(file);
		//copyNotEmptyDir("C:\\test\\J2EE","C:\\TEMP");
		//moveDir("C:\\test\\J2EE","C:\\TEMP");
	}

	/**
	 * delete not empty directory
	 * 
	 * @param file
	 * @return -1 denote fail,other:success
	 */
	public static void delNotEmptyDir(File dir) {
		//		删除目录下的所有文件
		delAllfile(dir);

		//		删除自己
		dir.delete();
	}

	/**
	 * delete all file in one directory
	 * 
	 * @param file
	 * @return
	 */
	public static void delAllfile(File dir) {
		if (!dir.exists()) {
			return;
		} else {
			File files[] = dir.listFiles();
			for (int i = 0; i < files.length; i++) {
				if (files[i].isFile()) {
					files[i].delete();
				} else if (files[i].isDirectory()) {
					delAllfile(files[i]);
					files[i].delete();
				}
			}
			////// test
			/*
			 * for(int i=0;i <files.length;i++){
			 * System.out.println(files[i].getAbsolutePath()); }
			 * System.out.println(File.separator);
			 */
			////////
		}
	}

	/**
	 * 
	 * @param dir
	 * @param targetDir
	 */
	public static void copyNotEmptyDir(String oldPaht,String newPath) {
		File dir=new File(oldPaht);
		File targetDir=new File(newPath);
		copyNotEmptyDir(dir,targetDir);
	}
	/**
	 * precondition:the first directory is exist and not empty, copy not empty
	 * directory to target directory
	 * 
	 * @param dirName
	 */
	public static void copyNotEmptyDir(File dir, File targetDir) {
		if (!targetDir.exists()){
			System.out.println("指定的目标目录不存在");
			return ;
		}else{
			if (!targetDir.isDirectory()){
				System.out.println("指定的不是目录");
				return ;
			}else{
				String subFileName=dir.getName();
				File subDir=new File(targetDir.getPath()+File.separator+subFileName);
				System.out.println("生成 "+targetDir.getPath()+" 子目录 "+subDir.getName());
				subDir.mkdir();
				copyAllFile(dir,subDir);
			}
		}
	}

	/**
	 * copy 当前目录下的文件和空目录到指定的目录
	 * @param oldPath
	 * @param newPath
	 */
	public static void copyAllFile(String oldPath, String newPath) {
		File dir=new File(oldPath);
		File targetDir=new File(newPath);
		copyAllFile(dir,targetDir);
	}
	/**
	 * copy 当前目录下的文件和空目录到指定的目录
	 * 
	 * @param dir
	 * @param targetDir
	 */
	public static void copyAllFile(File dir, File targetDir) {
		String subFileName="";
		File newFile=null;
		if (!dir.exists()) {
			return;
		} else {
			File files[] = dir.listFiles();
			for (int i = 0; i < files.length; i++) {
				subFileName=files[i].getName();
				newFile=new File(targetDir.getPath()+File.separator+subFileName);
				if (files[i].isFile()) {
					copyFile(files[i],newFile);					
				}else if (files[i].isDirectory()){
					System.out.println("the old directory :"+files[i].getPath());
					System.out.println("make new directory :"+newFile.getPath());
					newFile.mkdir();
					copyAllFile(files[i],newFile);
				}
			}
		}
	}
	
	/**
	 * copy single file
	 * @param oldPath
	 * @param newPath
	 */
	public static void copyFile(String oldPath,String newPath){
		File oldFile=new File(oldPath);
		File newFile=new File(newPath);
		copyFile(oldFile,newFile);
	}
/**
 * copy single file
 * @param oldFile
 * @param newFile
 */
	public static void copyFile(File oldFile, File newFile) {
		System.out.println("拷贝文件");
		System.out.println("原文件　"+oldFile.getPath());
		System.out.println("新文件　"+newFile.getPath());
		
		//int bytesum = 0;
		//int byteread = 0;
		if (oldFile.exists()) { //文件存在时
			try {
				InputStream inStream = new FileInputStream(oldFile); //读入原文件
				FileOutputStream fs = new FileOutputStream(newFile);
				byte[] buffer = new byte[1024];
				while (inStream.read(buffer)!= -1) {
					//bytesum += byteread; //字节数 文件大小
					//System.out.println(bytesum);
					fs.write(buffer);
				}
				inStream.close(); 
			} catch (FileNotFoundException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}

		}
	}
	
	/**
	 *precondition: the oldFile is exist 
	 * @param oldFile
	 * @param newFile
	 */
	public static void moveFile(File oldFile,File newFile){
		copyFile(oldFile,newFile);
		oldFile.delete();
	}
	
	/**
	 *precondition :the oldPath of the Directory is exist; 
	 * @param oldPath
	 * @param newPath
	 */
	public static void moveDir(String oldPath,String newPath){
		File oldDir=new File(oldPath);
		File targetDir=new File(newPath);
		moveDir(oldDir,targetDir);
	}
	/**
	 * precondition: the oldDir is exist
	 * @param oldDir
	 * @param newDir
	 */
	public static void moveDir(File oldDir,File targetDir){
		copyNotEmptyDir(oldDir,targetDir);
		delNotEmptyDir(oldDir);
	}
	/**
	 * 前提:该文件是目录且存在 //-1代表该目录为空目录,其它代表非空目录
	 * 
	 * @param file
	 * @return
	 */

	public static int dirIsEmpty(File file) {
		String[] fileNames = file.list();
		if (fileNames == null) {
			return -1;
		} else {
			return 1;
		}
	}
}