filedeal.java

自己做的Jsp网页版文件管理

package cumt.file;
import java.io.*;
import java.util.regex.Pattern;
public class FileDeal {
	public static boolean isEmpty(String s){
		if(s==null)
			return false;
		else{
			s=s.trim();
			return s.equals("");
		}
	}
public static String convertToCN(String s){
		
		try{
		return s==null?"":new String( s.toString().getBytes("8859_1"),"gbk" );
		}catch(Exception e){
			return "";
		}
		
	}
public static boolean isValidName(String s){
	if(s==null)
		return false;
	else{
		String str="[#】\\[\\]\\s\"']+";
		return !Pattern.matches(str, s);
	}
}
public static boolean exists(String path){
 	File file=new File(path);
 	return file.exists();
}
public static boolean delete(String path){
 	File file=new File(path);
 	if( file.exists()){
 		if(file.isDirectory()){
 		File files[]=file.listFiles();
 		for(int i=0;i<files.length;i++){
 			delete(path+"/"+files[i].getName());
 		}
 		return file.delete();
 		}
 		else 
 			return file.delete();
 	}
 	else
 		return true;
}
public static boolean isDirectory(String path){
	File file=new File(path);
	return file.isDirectory();
}
public static boolean isFile(String path){
	File file=new File(path);
	return file.isFile();
}
public static boolean replace(String path,File temp){
	File file=new File(path);
	if(delete(path)){
		temp.renameTo(file);
		return true;
	}else
		return false;
}
public static boolean createFolder(String path) throws IOException{
	if(!isValidName(path))
		return false;
	File file=new File(path);
	if(!file.exists()){
		return file.mkdir();
	}else
		return false;
}
public static boolean rename(String path,String dest){
	File file=new File(path);
	if(file.exists() && isValidName(dest)){
		try{
		return file.renameTo(new File(file.getParent()+"\\"+dest));
		}catch(Exception e){
			return false;
		}
	}
	return false;
}
}