//  将一个jpg的文件分解一个文件成每个10k大的文件 !
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;

public class Rmp3 {
    static int index = 0;
    public static void CreateNew(FileInputStream FIS) throws Exception {
        File F = new File("C:\\tmp\\"+"no"+ index++ +".jpg");
        byte [] buf = new byte[10240];
        while( FIS.read(buf) != -1){
            FileOutputStream FOS = new FileOutputStream(F);
            for (int i=0;i<buf.length;i++){
                if (buf[i] != 0){
                    FOS.write(buf[i]);
                }
            }
            if ( FIS.available() != -1){
                CreateNew(FIS);
            }
        }
    }
    
    public static void main(String[] args) throws Exception{
        File F = new File("C:\\tmp\\therock01.jpg");
        FileInputStream FIS = new FileInputStream(F);
        CreateNew(FIS);
        FIS.close();
    }
}

 // 将分解的文件进行合并
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;

public class AddFind {
    public static void find(File F) throws Exception {
        if (F.getName().endsWith(".jpg")){
            
            FileInputStream FIS = new FileInputStream(F);
            CreateNew(FIS);
        } else {
            File [] Fa = F.listFiles();
            for (int i=0;i<Fa.length;i++){
                find(Fa[i]);
            }
        }
    }
    public static void CreateNew(FileInputStream FIS) throws Exception {
        byte [] buf = new byte [FIS.available()];
        File FF = new File("C:\\tmp\\two.jpg");
        while( (FIS.read(buf)) != -1){
            FileOutputStream FOS = new FileOutputStream(FF,true);
            for (int i=0;i<buf.length;i++){
                if (buf[i] != 0){
                    FOS.write(buf[i]);
                }
            }
            FOS.close();
        }
    }
    public static void main(String[] args) throws Exception{
        File F = new File("C:\\tmp\\bb\\jpg\\");
        find(F);
    }
}