以下的类就实现了对目录的操作，包括删除，取大小以及深度。
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import java.io.*;
import java.util.*;
public class ManageContent {
private int dir_deep=0;
private int dir_size = 0;
private int sourcepath_deep; //输入路径相对于根目录的深度
private Hashtable ht=new Hashtable(); //储存输入路径下的所有子目录，及其相对于根目录的深度keys=(String)dirPath,values=(Integer)dirDeep
public synchronized int getSize(String dir_path) throws FileNotFoundException {
File dir = new File(dir_path);
if (!dir.exists()) {
throw new FileNotFoundException();
}
if (!dir.isDirectory()) {
dir_size = (int) dir.length();
}
else {
File[] fe = dir.listFiles();
for (int i = 0; i < fe.length; i++) {
if (fe[i].isDirectory()) {
getSize(fe[i].toString());
}
else {
dir_size += fe[i].length();
}
}
}
return dir_size;
} |
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public synchronized void deleteFiles(String dir_path) throws FileNotFoundException {
File file = new File(dir_path);
if (!file.exists()) {
throw new FileNotFoundException();
}
if (file.isDirectory()) {
File[] fe = file.listFiles();
for (int i = 0; i < fe.length; i++) {
deleteFiles(fe[i].toString());
fe[i].delete(); //删除已经是空的子目录
}
}
file.delete(); //删除总目录
} |
