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java代碼更改文件名稱 修改java文件名

Java能修改文件夾的名字嗎

package?script;

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import?java.io.File;

import?java.io.IOException;

public?class?Realname?{

public?static?void?main(String[]?args)?throws?IOException?

{

File?oldFile?=?new?File("d:/PMS");

if(!oldFile.exists())

{

oldFile.createNewFile();

}

System.out.println("修改前文件名稱是:"+oldFile.getName());

String?rootPath?=?oldFile.getParent();

System.out.println("根路徑是:"+rootPath);

File?newFile?=?new?File(rootPath?+?File.separator?+?"PMSTmp");

System.out.println("修改后文件名稱是:"+newFile.getName());

if?(oldFile.renameTo(newFile))?

{

System.out.println("修改成功!");

}?

else?

{

System.out.println("修改失敗");

}

}

}

原來寫的例子~~~希望能采納。

java怎么修改文件名稱

File file=new File("D:\\abc.java");

if(file.exists())

{

file.renameTo(new File("d:\\123.txt"));

}

java怎樣按規(guī)定批量修改文件名

java批量修改文件名:

public static void main(String[] args) {

updateFileNames("D:\\jjjj", "第");

}

public static void updateFileNames(String url, String index){

File file = new File(url);

//判斷文件目錄是否存在,且是文件目錄,非文件

if(file.exists() file.isDirectory()){

File[] childFiles = file.listFiles();

String path = file.getAbsolutePath();

for(File childFile : childFiles){

//如果是文件

if(childFile.isFile()){

String oldName = childFile.getName();

String newName = oldName.substring(oldName.indexOf(index));

childFile.renameTo(new File(path + "\\" + newName));

}

}

}

}

用java線程實(shí)現(xiàn)批量修改文件名

;?? /**??? ??? * this program TODO??? ??? * @version ??? ??? * @ausor widjan wu??? ??? */??? ??? package file;??? ??? import java io File;??? ??? import java util ArrayList;??? ??? import java util Scanner;??? ??? import ncurrent *;??? ??? public class ChangeFileName??? ??? {??? ??? public static void main(String[] args)??? ??? {??? ??? Scanner in = new Scanner(System in) ??? ??? System out print( Enter base directory : ) ??? ??? String directory = in nextLine() ??? ??? System out print( Enter key words: ) ??? ??? String keywords = in nextLine() ??? ??? ExecutorService pool = Executors newCachedThreadPool() ??? ??? ChangeName change = new ChangeName(new File(directory) keywords pool) ??? ??? FutureInteger result = pool submit(change) ??? ??? try {??? ??? System out println(result get() + files were changed ) ??? ??? } catch (ExecutionException e) {??? ??? e printStackTrace() ??? ??? } catch (InterruptedException e) {??? ??? }??? ??? pool shutdown() ??? ??? int largestPoolSize = ((ThreadPoolExecutor) pool) getLargestPoolSize() ??? ??? System out println( largest pool size : + largestPoolSize) ??? ??? }??? ??? }??? ??? class ChangeName implements CallableInteger??? ??? {??? ??? public ChangeName(File directory String keywords ExecutorService pool) {??? ??? this directory = directory;??? ??? this pool = pool;??? ??? this keywords = keywords;??? ??? }??? ??? public Integer call()??? ??? {??? ??? count = ;??? ??? try??? ??? {??? ??? File[] files = directory listFiles() ??? ??? ArrayListFutureInteger》 results = new ArrayListFutureInteger》() ??? ??? for (File file : files) {??? ??? if (file isDirectory()) {??? ??? ChangeName change = new ChangeName(file keywords pool) ??? ??? FutureInteger result = pool submit(change) ??? ??? } else {??? ??? count++;??? ??? String path = file getPath() ??? ??? int index = path lastIndexOf( \\ ) ??? ??? path = path substring( index + ) ??? ??? System out println(path) ??? ??? String oldName = file getName() ??? ??? String fileType = oldName substring(oldName lastIndexOf( )) ??? ??? String newFName = path + keywords + count + fileType;??? ??? file renameTo(new File(newFName)) ??? ??? }??? ??? }??? ??? for(FutureInteger result:results)??? ??? {??? ??? try??? ??? {??? ??? count +=result get() ??? ??? }catch(ExecutionException e)??? ??? {??? ??? e printStackTrace() ??? ??? }??? ??? }??? ??? }catch(InterruptedException e)??? ??? {??? ??? }??? ??? return count;??? ??? }??? ??? private File directory;??? ??? private String keywords;??? ??? private ExecutorService pool;??? ??? private int count;??? ??? } lishixinzhi/Article/program/Java/gj/201311/27511

java修改文件后綴名

以下程序?qū)崿F(xiàn)的功能是批量修改文件后綴:

import java.io.*;

/**

* JAVA實(shí)現(xiàn)的批量更改文件后綴名的程序。

*

* @author rommnn

*/

public class ExtBatchRename {

/**

* 修改程序。br

* 內(nèi)部遞歸調(diào)用,進(jìn)行子目錄的更名

*

* @param path

* 路徑

* @param from

* 原始的后綴名,包括那個(gè)(.點(diǎn))

* @param to

* 改名的后綴,也包括那個(gè)(.點(diǎn))

*/

public void reName(String path, String from, String to) {

File f = new File(path);

File[] fs = f.listFiles();

for (int i = 0; i fs.length; ++i) {

File f2 = fs[i];

if (f2.isDirectory()) {

reName(f2.getPath(), from, to);

} else {

String name = f2.getName();

if (name.endsWith(from)) {

f2.renameTo(new File(f2.getParent() + "/" + name.substring(0, name.indexOf(from)) + to));

}

}

}

}

public static void main(String[] args) {

ExtBatchRename rf = new ExtBatchRename();

rf.reName("d:/", ".jsp", ".html");

}

}


分享名稱:java代碼更改文件名稱 修改java文件名
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