按指定后缀名删除文件的demo

import java.io.File;
import java.util.ArrayList;
import java.util.List;
public class clean_suffixTest {
private static int a = 0;
public static void main(String[] args)
{
String filedir = "G:\testpath";
List suffixList = new ArrayList();
// suffixList.add(".avi");
suffixList.add(".MP4");
// suffixList.add(".html_zh");
// suffixList.add("_zh.js");
clean_suffixTest sweepUnusedFiles = new clean_suffixTest();
sweepUnusedFiles.startDeleteFixedFiles(filedir, suffixList);
System.out.println("执行完成！一共删除"+a+"个文件");
}
public void startDeleteFixedFiles(String filedir, List suffixList)
{
if (null == filedir || "".equals(filedir.trim()))
{
System.out.println("filedir 目录不对！");
return;
}
filedir = filedir.trim();
if (null == suffixList || suffixList.size() <= 0)
{
System.out.println("suffixList 没有要匹配的后缀！");
return;
}
File f = new File(filedir);
if (f.isDirectory())
{
handleFile(f, suffixList);
}
else
{
System.out.println("filedir 必须为目录");
/* for (String suffix : suffixList) { if (f.getName().endsWith(suffix)) { // 匹配到的要删除 try { f.delete(); }
* catch (Exception e) { System.out.println("文件删除失败：" + f.getAbsolutePath() + "" + f.getName()); } } } */
}
}
private void handleFile(File filedir, List suffixList)
{
// 目录
File[] files = filedir.listFiles();
for (File subFile : files)
{
if (subFile.isDirectory())
{
handleFile(subFile, suffixList);
}
else
{
// 文件
for (String suffix : suffixList)
{
if (subFile.getName().endsWith(suffix))
{
// 匹配到的要删除
try
{
subFile.delete();
System.out.println("已删除文件：" + subFile.getAbsolutePath() + "" + subFile.getName());
a++;
}
catch (Exception e)
{
System.out.println("文件删除失败：" + subFile.getAbsolutePath() + "" + subFile.getName());
}
}
}
}
}
}
}