java根据图片创建日期,或最后修改日期重命名

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.swing.JFileChooser;
import javax.swing.filechooser.FileSystemView;public class imgRename { /**
* 将图片名称修改成图片属性的[修改时间]
*
* @author InJavaWeTrust
*/
public static class ReName { public static String TimeMod="ModeTime";//ModeTime或CreateTime public static void rename(String PATH, String suffix) {
File file = new File(PATH);
File[] files = file.listFiles();
String newName="";
System.out.println("------------重命名------------");
int i=0;
String stri=null;
SimpleDateFormat simpleDateFormat=new SimpleDateFormat("yyyymmddhhmmss");
for (File f : files) {
stri = new DecimalFormat("0000").format(i);
if(TimeMod.equals("ModeTime")){
newName=simpleDateFormat.format(new Date(files[i].lastModified()));
newName=newName+stri+"."+ suffix;
}else if(TimeMod.equals("CreateTime")){
newName=getCreateTime(PATH,suffix)+stri+"."+ suffix;
}else{
return ;
}
newName=newName.replace(" ", "");
newName=newName.replace("/", "_");
newName=newName.replace(":", "_");
System.out.println(f.getName()+" --> "+newName);
//System.out.println(PATH + File.separator + newName);
f.renameTo(new File(PATH + File.separator + newName));
i++;
}
} public static String getCreateTime(String filePath,String suffix){
String strTime = null;
try {
Process p = Runtime.getRuntime().exec("cmd /C dir "
+ filePath
+ "/tc" );
InputStream is = p.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(is));
String line;
while((line = br.readLine()) != null){
if(line.endsWith("."+suffix)){
strTime = line.substring(0,17);
break;
}
}
} catch (IOException e) {
e.printStackTrace();
}
//System.out.println("创建时间 " + strTime);
//输出：创建时间 2009-08-17 10:21
return strTime;
} public static void main(String[] args) { //获得目标的工作目录
String path = getPath();
if (path != null) {
//LinkedHashMap<String, String> map = getFiles(path);
try {
readfile(path);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} } public static String getPath() {
String path = null;
JFileChooser fileChooser = new JFileChooser();
FileSystemView fsv = FileSystemView.getFileSystemView(); //注意了，这里重要的一句
fileChooser.setCurrentDirectory(fsv.getHomeDirectory());
fileChooser.setDialogTitle("请选择要命名为创建日期的图片文件夹...");
fileChooser.setApproveButtonText("确定");
fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY); int returnVal = fileChooser.showOpenDialog(fileChooser); if (returnVal == JFileChooser.APPROVE_OPTION) {
path = fileChooser.getSelectedFile().getAbsolutePath();//这个就是你选择的文件夹的路径
System.out.println(path);
return path;
}
return null;
} /**
* 重命名
*/
/**
* 读取某个文件夹下的所有文件
*/
public static boolean readfile(String filepath) throws FileNotFoundException, IOException {
try { File file = new File(filepath);
if (!file.isDirectory()) {
String fileName = file.getName();
String suffix = fileName.substring(fileName.lastIndexOf(".") + 1);
/*System.out.println("name=" + file.getName());
System.out.println("path=" + file.getPath());
System.out.println("absolutepath=" + file.getAbsolutePath());
System.out.println("suffix=" + suffix);
*/
if ((suffix.equals( "jpg") || suffix.equals("jpeg") || suffix.equals("gif") || suffix.equals( "png") || suffix.equals("bmp"))&&!fileName.substring(0, 3).equals("201")) {
rename(file.getPath(), suffix);
} } 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()) {
String fileName = readfile.getName();
String suffix = fileName.substring(fileName.lastIndexOf(".") + 1);
System.out.println("name=" + file.getName());
//System.out.println("path=" + readfile.getPath());
//System.out.println("absolutepath=" + readfile.getAbsolutePath());
System.out.println("suffix=" + suffix); if ((suffix.equals("jpg") || suffix.equals("jpeg") || suffix.equals("gif") || suffix.equals( "png") || suffix.equals("bmp"))&&!fileName.substring(0, 3).equals("201")) {
rename(file.getPath(), suffix);
break;
}
} else if (readfile.isDirectory()) {
readfile(filepath + "\\" + filelist[i]);
}
} } } catch (FileNotFoundException e) {
System.out.println("readfile() Exception:" + e.getMessage());
}
return true;
} }}