java根据图片创建日期,或最后修改日期重命名

1import java.io.BufferedReader;
2import java.io.File;
3import java.io.FileNotFoundException;
4import java.io.IOException;
5import java.io.InputStream;
6import java.io.InputStreamReader;
7import java.text.DecimalFormat;
8import java.text.SimpleDateFormat;
9import java.util.Date;
10import javax.swing.JFileChooser;
11import javax.swing.filechooser.FileSystemView;
12
13public class imgRename {
14
15 /**
16 * 将图片名称修改成图片属性的[修改时间]
17 * 
18 * @author InJavaWeTrust
19 */
20 public static class ReName {
21
22 public static String TimeMod="ModeTime";//ModeTime或CreateTime
23
24 public static void rename(String PATH, String suffix) {
25 File file = new File(PATH);
26 File[] files = file.listFiles();
27 String newName="";
28 System.out.println("------------重命名------------");
29int i=0;
30 String stri=null;
31 SimpleDateFormat simpleDateFormat=new SimpleDateFormat("yyyymmddhhmmss");
32 for (File f : files) {
33 stri = new DecimalFormat("0000").format(i);
34 if(TimeMod.equals("ModeTime")){
35 newName=simpleDateFormat.format(new Date(files[i].lastModified()));
36 newName=newName+stri+"."+ suffix;
37 }else if(TimeMod.equals("CreateTime")){
38 newName=getCreateTime(PATH,suffix)+stri+"."+ suffix;
39 }else{
40 return ;
41 }
42 newName=newName.replace(" ", "");
43 newName=newName.replace("/", "_");
44 newName=newName.replace(":", "_");
45 System.out.println(f.getName()+" --> "+newName); 
46 //System.out.println(PATH + File.separator + newName); 
47 f.renameTo(new File(PATH + File.separator + newName));
48 i++;
49 }
50 }
51
52 public static String getCreateTime(String filePath,String suffix){ 
53 String strTime = null; 
54 try { 
55 Process p = Runtime.getRuntime().exec("cmd /C dir " 
56 + filePath 
57 + "/tc" ); 
58 InputStream is = p.getInputStream(); 
59 BufferedReader br = new BufferedReader(new InputStreamReader(is)); 
60 String line; 
61 while((line = br.readLine()) != null){ 
62 if(line.endsWith("."+suffix)){ 
63 strTime = line.substring(0,17); 
64 break; 
65 } 
66 } 
67 } catch (IOException e) { 
68 e.printStackTrace(); 
69 } 
70 //System.out.println("创建时间 " + strTime); 
71 //输出：创建时间 2009-08-17 10:21 
72 return strTime;
73 } 
74
75
76 public static void main(String[] args) {
77
78 //获得目标的工作目录
79String path = getPath();
80 if (path != null) {
81 //LinkedHashMap<String, String> map = getFiles(path);
82 try {
83 readfile(path);
84 } catch (FileNotFoundException e) {
85 // TODO Auto-generated catch block
86 e.printStackTrace();
87 } catch (IOException e) {
88 // TODO Auto-generated catch block
89 e.printStackTrace();
90 }
91 }
92
93 }
94
95 public static String getPath() {
96 String path = null;
97 JFileChooser fileChooser = new JFileChooser();
98 FileSystemView fsv = FileSystemView.getFileSystemView(); //注意了，这里重要的一句
99fileChooser.setCurrentDirectory(fsv.getHomeDirectory());
100 fileChooser.setDialogTitle("请选择要命名为创建日期的图片文件夹...");
101fileChooser.setApproveButtonText("确定");
102fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
103
104 int returnVal = fileChooser.showOpenDialog(fileChooser);
105
106 if (returnVal == JFileChooser.APPROVE_OPTION) {
107 path = fileChooser.getSelectedFile().getAbsolutePath();//这个就是你选择的文件夹的路径
108System.out.println(path);
109 return path;
110 }
111 return null;
112 }
113
114
115 /**
116 * 重命名
117*/
118 /**
119 * 读取某个文件夹下的所有文件
120*/
121public static boolean readfile(String filepath) throws FileNotFoundException, IOException {
122 try {
123
124 File file = new File(filepath);
125 if (!file.isDirectory()) {
126 String fileName = file.getName();
127 String suffix = fileName.substring(fileName.lastIndexOf(".") + 1);
128 /*System.out.println("name=" + file.getName());
129 System.out.println("path=" + file.getPath());
130 System.out.println("absolutepath=" + file.getAbsolutePath());
131 System.out.println("suffix=" + suffix);
132 */
133 if ((suffix.equals( "jpg") || suffix.equals("jpeg") || suffix.equals("gif") || suffix.equals( "png") || suffix.equals("bmp"))&&!fileName.substring(0, 3).equals("201")) {
134 rename(file.getPath(), suffix);
135 }
136
137 } else if (file.isDirectory()) {
138 //System.out.println("文件夹");
139String[] filelist = file.list();
140 for (int i = 0; i < filelist.length; i++) {
141 File readfile = new File(filepath + "\\" + filelist[i]);
142 if (!readfile.isDirectory()) {
143 String fileName = readfile.getName();
144 String suffix = fileName.substring(fileName.lastIndexOf(".") + 1);
145 System.out.println("name=" + file.getName());
146 //System.out.println("path=" + readfile.getPath());
147 //System.out.println("absolutepath=" + readfile.getAbsolutePath());
148 System.out.println("suffix=" + suffix);
149
150 if ((suffix.equals("jpg") || suffix.equals("jpeg") || suffix.equals("gif") || suffix.equals( "png") || suffix.equals("bmp"))&&!fileName.substring(0, 3).equals("201")) {
151 rename(file.getPath(), suffix);
152 break;
153 }
154 } else if (readfile.isDirectory()) {
155 readfile(filepath + "\\" + filelist[i]);
156 }
157 }
158
159 }
160
161 } catch (FileNotFoundException e) {
162 System.out.println("readfile() Exception:" + e.getMessage());
163 }
164 return true;
165 }
166
167 }
168
169}

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