自己没事儿写的垃圾文件道理， 算法很垃圾。 对付着能用。
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package com. datatransfer;
import java. io. File;
import java. io. IOException;
import java. text. SimpleDateFormat;
import java. util. Date;
import java. util. HashMap;
import javax. swing. JFileChooser;
public class test {
// tmp *. _mp *. log *. gid *. chk *. old *. dmp *. bak *. hlp temp internet
static String[] SYSARRAY = { "tmp", "_mp", "gid", "chk", "old",
"dmp", "bak", "hlp", "temp", "internet" };
static HashMapString, Integer map = new HashMapString, Integer(); //删除结果分类
static StringBuffer sb = new StringBuffer(); //删除结果详细
static long count = 0; //删除个数
static long scanCount = 0; //扫描个数
static long node = 0; //子文件夹
/**
* @param args
* @author 2010-3-30上午10:06:06By Simon (赵振明).
* @throws IOException
*/
public static void main(String[] args) throws IOException {
test t = new test();
java. util. Date now = new Date();
t. listFile("D:\\");
java. util. Date date=new Date();
TDoA(date, now);
System. err. println("共扫描 ：" + scanCount + "个文件");
System. err. println("共删除了 ：" + count + "个文件");
for (String str : SYSARRAY) {
System. err. println("共删除【"+str+"】类型垃圾文件 ："+map. get(str)+"个");
}
System. err. println("=====================详细信息=====================");
System. err. println(sb. toString());
}
/**
* 获取文件夹下的所有文件
*
* @author 2010-3-30上午10:56:51By Simon (赵振明).
*/
public void listFile(String pash) {
File f = new File(pash);
File[] array = f. listFiles();
//JFileChooser j = new JFileChooser();
for (File file : array) {
if (file. isDirectory()) {
this. File(file);
} else {
System. out. println("扫描文件：" + file. getPath());
if (trimExtension(file. getName())) {
// System. err. println("删除 ："+file. getPath());
file. delete();
count++;
sb. append("删除了:" + file. getPath());
sb. append("/n");
}
// System. err. println(j. getTypeDescription(file));
}
}
} /***
* 扫描子目录 文件
* @param f
* @author 2010-3-30下午05:44:03By Simon (赵振明).
*/
public void File(File f) {
File[] array = f. listFiles();
//JFileChooser j = new JFileChooser();
if (null != array) {
for (File file : array) {
if (file. isDirectory()) {
this. File(file);
} else {
// System. err. println(file. getName());
// System. err. println(j. getTypeDescription(file));
System. out. println("扫描文件：" + file. getPath());
if (trimExtension(file. getName())) {
// System. err. println("删除 ："+file. getPath());
file. delete();
count++;
sb. append("成功删除了:" + file. getPath());
sb. append("\n");
}
}
}
}
}
/***
* 截取文件名的后缀命
*
* @param filename
* @return
* @author 2010-3-30下午02:32:41By Simon (赵振明).
*/
public static boolean trimExtension(String filename) {
scanCount++;
boolean fig = false;
if ((filename != null) (filename. length() 0)) {
int i = filename. lastIndexOf('. ');
if ((i -1) (i (filename. length()))) {
fig = isDelFile(filename. substring(i + 1, filename. length()));
} else {
return fig;
}
}
return fig;
}
/***
* 判断文件是否属于黑名单范围
*
* @param name
* @return
* @author 2010-3-30下午02:34:34By Simon (赵振明).
*/
public static boolean isDelFile(String name) {
for (String nodename : SYSARRAY) {
if (nodename. equals(name)) {
if(null!=map. get(nodename)){
map. put(nodename, map. get(nodename)+1);
}else{
map. put(nodename, 1);
}
return true;
}
}
return false;
}
/***
* 时间差计算
* @param now
* @param date
* @author 2010-3-30下午05:43:11By Simon (赵振明).
*/
public static void TDoA(Date now , Date date){
long l=now. getTime()-date. getTime();
long day=l/(24*60*60*1000);
long hour=(l/(60*60*1000)-day*24);
long min=((l/(60*1000))-day*24*60-hour*60);
long s=(l/1000-day*24*60*60-hour*60*60-min*60);
System. out.println("历时："+day+"天"+hour+"小时"+min+"分"+s+"秒");
}
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