public void delFile(String path,String flag)
{
int count = 0;
File dirRec = new File(path);
String dir_list[] = dirRec.list(); for (int i=0;i<dir_list.length;i++)
{
File tmpname = new File(dir_list[i]);
if(tmpname.isDirectory())
{
System.out.println(tmpname);
delFile(dir_list[i],flag);
}else{
if(dir_list[i].indexOf(flag)>=0){
System.out.println(tmpname);
boolean re = tmpname.delete();
count++;
System.out.println("result:"+re+"--number:"+count);
}
}
}上面是一个删除path目录下有flag标志文件的方法,里面有访问目录下文件以及其子文件夹方法,你可以改写一下就是那!
{
int count = 0;
File dirRec = new File(path);
String dir_list[] = dirRec.list(); for (int i=0;i<dir_list.length;i++)
{
File tmpname = new File(dir_list[i]);
if(tmpname.isDirectory())
{
System.out.println(tmpname);
delFile(dir_list[i],flag);
}else{
if(dir_list[i].indexOf(flag)>=0){
System.out.println(tmpname);
boolean re = tmpname.delete();
count++;
System.out.println("result:"+re+"--number:"+count);
}
}
}上面是一个删除path目录下有flag标志文件的方法,里面有访问目录下文件以及其子文件夹方法,你可以改写一下就是那!
* Created on 2004-6-28
*
* TODO To change the template for this generated file go to
* Window - Preferences - Java - Code Style - Code Templates
*/
package e20040628;
import java.io.*;
import java.util.*;/**
* @author Administrator
*
* TODO To change the template for this generated type comment go to
* Window - Preferences - Java - Code Style - Code Templates
*/
public class DirList { public static void main(String[] args) {
DirList dlist= new DirList();
if (args.length!=0)
dlist.showAllfile("E:\\eclipse-SDK-3.0-win32\\eclipse",args[0]);
else
dlist.showAllfile(".","");
}
public void showAllfile(String directoryname,String filter){
File path = new File(directoryname);
String[] list;
if(filter.length()==0)
list = path.list();
else
list = path.list(new DirFilter(filter));
Arrays.sort(list,new AlphabeticComparator());
for(int i=0 ;i<list.length;i++)
{
File enumfilename = new File(list[i]);
if (enumfilename.isDirectory())
{
System.out.println("Directory: "+list[i]);
showAllfile(list[i],filter);
}
else
System.out.println(list[i]);
}
}
}class DirFilter implements FilenameFilter{
String afn;
DirFilter(String afn){
this.afn=afn;
}
public boolean accept(File dir,String name){
String f = new File(name).getName();
if (afn.length()==0)
return true;
else
return f.indexOf(afn)!=-1;
}
}class AlphabeticComparator implements Comparator{
public int compare(Object o1,Object o2){
String s1=(String)o1;
String s2=(String)o2;
return s1.toLowerCase().compareTo(s2.toLowerCase());
}
}
/*
* Created on 2004-6-28
*
* TODO To change the template for this generated file go to
* Window - Preferences - Java - Code Style - Code Templates
*/
package e20040628;
import java.io.*;
import java.util.*;/**
* @author Administrator
*
* TODO To change the template for this generated type comment go to
* Window - Preferences - Java - Code Style - Code Templates
*/
public class DirList { public static void main(String[] args) {
DirList dlist= new DirList();
if (args.length!=0)
dlist.showAllfile(".",args[0]);
else
dlist.showAllfile(".","");
}
public void showAllfile(String directoryname,String filter){
File path = new File(directoryname);
String[] list;
if(filter.length()==0)
list = path.list();
else
list = path.list(new DirFilter(filter));
if (list==null )
return;
Arrays.sort(list,new AlphabeticComparator());
for(int i=0 ;i<list.length;i++)
{
File enumfilename = new File(converttoPath(path.getPath()+"\\"+list[i]));
if (enumfilename.isDirectory())
{
System.out.println("Directory: "+list[i]);
showAllfile(converttoPath(path.getPath()+"\\"+list[i]),filter);
}
else
System.out.println(list[i]);
}
}
public String converttoPath(String pathName){
StringBuffer bufferdir= new StringBuffer(pathName);
for(int i=0;i<bufferdir.length();i++)
if (bufferdir.charAt(i)=='\\')
{
bufferdir.insert(++i,'\\');
}
return new String(bufferdir);
}
}class DirFilter implements FilenameFilter{
String afn;
DirFilter(String afn){
this.afn=afn;
}
public boolean accept(File dir,String name){
String f = new File(name).getName();
if (afn.length()==0)
return true;
else
return f.indexOf(afn)!=-1;
}
}class AlphabeticComparator implements Comparator{
public int compare(Object o1,Object o2){
String s1=(String)o1;
String s2=(String)o2;
return s1.toLowerCase().compareTo(s2.toLowerCase());
}
}
若子文件夹里有该类型的文件,同样可以显示出来
/*
* Created on 2004-6-28
*
* TODO To change the template for this generated file go to
* Window - Preferences - Java - Code Style - Code Templates
*/
package e20040628;
import java.io.*;
import java.util.*;/**
* @author Administrator
*
* TODO To change the template for this generated type comment go to
* Window - Preferences - Java - Code Style - Code Templates
*/
public class DirList { public static void main(String[] args) {
DirList dlist= new DirList();
if (args.length!=0)
dlist.showAllfile(".",args[0]);
else
dlist.showAllfile(".",".class");
}
public void showAllfile(String directoryname,String filter){
File path = new File(directoryname);
String[] list;
if(filter.length()==0)
list = path.list();
else
list = path.list(new DirFilter(filter));
if (list==null )
return;
Arrays.sort(list,new AlphabeticComparator());
for(int i=0 ;i<list.length;i++)
{
File enumfilename = new File(converttoPath(path.getPath()+"\\"+list[i]));
if (enumfilename.isDirectory())
{
System.out.println("Directory: "+list[i]);
showAllfile(converttoPath(path.getPath()+"\\"+list[i]),filter);
}
else
System.out.println(list[i]);
}
}
public String converttoPath(String pathName){
StringBuffer bufferdir= new StringBuffer(pathName);
for(int i=0;i<bufferdir.length();i++)
if (bufferdir.charAt(i)=='\\')
{
bufferdir.insert(++i,'\\');
}
return new String(bufferdir);
}
}class DirFilter implements FilenameFilter{
String afn;
DirFilter(String afn){
this.afn=afn;
}
public boolean accept(File dir,String name){
File listfile= new File(name);
String f =listfile.getName();
if (afn.length()==0||listfile.isDirectory())
return true;
else
return f.indexOf(afn)!=-1;
}
}class AlphabeticComparator implements Comparator{
public int compare(Object o1,Object o2){
String s1=(String)o1;
String s2=(String)o2;
return s1.toLowerCase().compareTo(s2.toLowerCase());
}
}