代码片段，双击复制
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package
match;
import
java.io.File;
import
java.util.regex.Matcher;
import
java.util.regex.Pattern;
public
class
Utils {
/**
* 遍历指定文件夹下的资源文件
* @param folder 文件
*/
public
static
void
simpleScanning(File folder) {
//指定正则表达式
Pattern mPattern = Pattern.compile(
"([^\\.]*)\\.([^\\.]*)"
);
// 当前目录下的所有文件
final
String[] filenames = folder.list();
// 当前目录的名称
//final String folderName = folder.getName();
// 当前目录的绝对路径
//final String folderPath = folder.getAbsolutePath();
if
(filenames !=
null
) {
// 遍历当前目录下的所有文件
for
(String name : filenames) {
File file =
new
File(folder, name);
// 如果是文件夹则继续递归当前方法
if
(file.isDirectory()) {
simpleScanning(file);
}
// 如果是文件则对文件进行相关操作
else
{
Matcher matcher = mPattern.matcher(name);
if
(matcher.matches()) {
// 文件名称
String fileName = matcher.group(
1
);
// 文件后缀
String fileExtension = matcher.group(
2
);
// 文件路径
String filePath = file.getAbsolutePath();
if
(Utils.isMusic(fileExtension)) {
// 初始化音乐文件......................
System.out.println(
"This file is Music File,fileName="
+fileName+
"."
+fileExtension+
",filePath="
+filePath);
}
if
(Utils.isPhoto(fileExtension)) {
// 初始化图片文件......................
System.out.println(
"This file is Photo File,fileName="
+fileName+
"."
+fileExtension+
",filePath="
+filePath);
}
if
(Utils.isVideo(fileExtension)) {
// 初始化视频文件......................
System.out.println(
"This file is Video File,fileName="
+fileName+
"."
+fileExtension+
",filePath="
+filePath);
}
}
}
}
}
}
/**
* 判断是否是音乐文件
* @param extension 后缀名
* @return
*/
public
static
boolean
isMusic(String extension) {
if
(extension ==
null
)
return
false
;
final
String ext = extension.toLowerCase();
if
(ext.equals(
"mp3"
) || ext.equals(
"m4a"
) || ext.equals(
"wav"
) || ext.equals(
"amr"
) || ext.equals(
"awb"
) ||
ext.equals(
"aac"
) || ext.equals(
"flac"
) || ext.equals(
"mid"
) || ext.equals(
"midi"
) ||
ext.equals(
"xmf"
) || ext.equals(
"rtttl"
) || ext.equals(
"rtx"
) || ext.equals(
"ota"
) ||
ext.equals(
"wma"
) ||ext.equals(
"ra"
) || ext.equals(
"mka"
) || ext.equals(
"m3u"
) || ext.equals(
"pls"
)) {
return
true
;
}
return
false
;
}
/**
* 判断是否是图像文件
* @param extension 后缀名
* @return
*/
public
static
boolean
isPhoto(String extension) {
if
(extension ==
null
)
return
false
;
final
String ext = extension.toLowerCase();
if
(ext.endsWith(
"jpg"
) || ext.endsWith(
"jpeg"
) || ext.endsWith(
"gif"
) || ext.endsWith(
"png"
) ||
ext.endsWith(
"bmp"
) || ext.endsWith(
"wbmp"
)) {
return
true
;
}
return
false
;
}
/**
* 判断是否是视频文件
* @param extension 后缀名
* @return
*/
public
static
boolean
isVideo(String extension) {
if
(extension ==
null
)
return
false
;
final
String ext = extension.toLowerCase();
if
(ext.endsWith(
"mpeg"
) || ext.endsWith(
"mp4"
) || ext.endsWith(
"mov"
) || ext.endsWith(
"m4v"
) ||
ext.endsWith(
"3gp"
) || ext.endsWith(
"3gpp"
) || ext.endsWith(
"3g2"
) ||
ext.endsWith(
"3gpp2"
) || ext.endsWith(
"avi"
) || ext.endsWith(
"divx"
) ||
ext.endsWith(
"wmv"
) || ext.endsWith(
"asf"
) || ext.endsWith(
"flv"
) ||
ext.endsWith(
"mkv"
) || ext.endsWith(
"mpg"
) || ext.endsWith(
"rmvb"
) ||
ext.endsWith(
"rm"
) || ext.endsWith(
"vob"
) || ext.endsWith(
"f4v"
)) {
return
true
;
}
return
false
;
}
}
代码片段，双击复制
01
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package
match;
import
java.io.File;
public
class
Test{
public
static
void
main(String[] args) {
String path=
"/home/ouyangpeng/justForTest"
;
File file =
new
File(path);
if
(file==
null
) {
System.out.println(
"file does not exist"
);
}
else
{
Utils.simpleScanning(file);
}
}
}
