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import java.io.IOException;

import java.nio.file.*;

/**

* 合并手机b站下载文件

*/

public class MoveBiliFile {

/**

* 返回pathname目录下文件总数

* @param pathname

* @return

* @throws IOException

*/

public int CountCatalog(String pathname) throws IOException {

int count=0;

DirectoryStream<Path> paths = Files.newDirectoryStream(Paths.get(pathname));

for(Path path:paths ){

count++;

}

return count;

}

public int MoveFile(String pathname) {

int count=0;

String toprepath="E:/Music/res";

for(int i=1;i<421;i++){

String name=pathname+"/"+i+"/lua.mp4.bili2api.16/0.blv";

Path frompath = Paths.get(name);

String toname=toprepath+"/"+i+".mp4";

Path topath = Paths.get(toname);

try {

Files.move(frompath,topath,StandardCopyOption.ATOMIC_MOVE);

count++;

} catch (IOException e) {

e.printStackTrace();

}

}

return count;

}

public void diff(String pathname) {

int count=0;

DirectoryStream<Path> paths = null;

try {

paths = Files.newDirectoryStream(Paths.get(pathname));

for(Path path:paths ){

System.out.println(path);

}

} catch (IOException e) {

e.printStackTrace();

}

}

/**

* gai

* @param tail

* @return

*/

public int changetail(String tail){

int count=0;

String toprepath="E:/Music/res";

for(int i=1;i<421;i++){

String name=toprepath+"/"+i+".txt";

Path frompath = Paths.get(name);

String toname=toprepath+"/"+i+tail;

Path topath = Paths.get(toname);

try {

Files.move(frompath,topath,StandardCopyOption.ATOMIC_MOVE);

count++;

} catch (IOException e) {

e.printStackTrace();

}

}

return count;

}

/**

* 修改后缀

* @param path 文件所在文件夹路径

* @param filename 文件名

* @param oldTail 后缀

* @param newTail 修改后的后缀

*/

public void changetail(String path,String filename,String oldTail,String newTail){

String name=path+"/"+filename+"."+oldTail;

Path frompath = Paths.get(name);

String toname=path+"/"+filename+"."+newTail;

Path topath = Paths.get(toname);

try {

Files.move(frompath,topath,StandardCopyOption.ATOMIC_MOVE);

} catch (IOException e) {

e.printStackTrace();

}

}

public static void main(String[] args) {

MoveBiliFile file=new MoveBiliFile();

int i = file.MoveFile("E:/Music/795213137");

System.out.println("成功移动数量为： "+i);

}

}