常用java代码片段之读取删除文件

/**
* 读取某一路经的所有文件
* @param filepath
* @return
*/
public static Map<String, String> readfile(String filepath) {
// key是文件名，value是路经+文件名
Map<String, String> fileMap = new HashMap<String, String>();

try {
File file = new File(filepath);
if (!file.isDirectory()) {
fileMap.put(file.getName(), file.getPath());
//				System.out.println("文件");
//				System.out.println("path=" + file.getPath());
//				System.out.println("absolutepath=" + file.getAbsolutePath());
//				System.out.println("name=" + file.getName());

} else if (file.isDirectory()) {
//				System.out.println("文件夹");
String[] filelist = file.list();
for (int i = 0; i < filelist.length; i++) {
File readfile = new File(filepath + "\\" + filelist[i]);
if (!readfile.isDirectory()) {
fileMap.put(readfile.getName(), readfile.getPath());
//						System.out.println("path=" + readfile.getPath());
//						System.out.println("absolutepath="
//								+ readfile.getAbsolutePath());
//						System.out.println("name=" + readfile.getName());

} else if (readfile.isDirectory()) {
readfile(filepath + "\\" + filelist[i]);
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return fileMap;
}

/**
* 删除某一路径的文件
* @param delpath
* @return
*/
public static boolean deletefile(String delpath){
File file = new File(delpath);
if (!file.isDirectory()) {
//                 System.out.println("1");
file.delete();
} else if (file.isDirectory()) {
//                 System.out.println("2");
String[] filelist = file.list();
for (int i = 0; i < filelist.length; i++) {
File delfile = new File(delpath + "\\" + filelist[i]);
if (!delfile.isDirectory()) {
//                                 System.out.println("path=" + delfile.getPath());
//                                 System.out.println("absolutepath="
//                                                 + delfile.getAbsolutePath());
//                                 System.out.println("name=" + delfile.getName());
delfile.delete();
//                                 System.out.println("删除文件成功");
} else if (delfile.isDirectory()) {
deletefile(delpath + "\\" + filelist[i]);
}
}
// 删除当前文件夹
file.delete();

}
return true;
}