Java split file and merge files (Zip,rar ....)

A Java split file that splits a zip file by a specified size and then merges it together.

Segmentation

Package com.zkq.objectstream;

Import Java.io.BufferedInputStream;
Import Java.io.BufferedOutputStream;
Import Java.io.File;
Import Java.io.FileInputStream;
Import java.io.FileNotFoundException;
Import Java.io.FileOutputStream;
Import java.io.IOException;
Import Java.io.InputStream;
Import Java.io.OutputStream;

public class HomeWork1 {
public static void Main (string[] args) {
String srcname= "D:\\apache-tomcat-7.0.40-windows-x86.zip";
String destname= "e:\\temp\\";
int size=1;
System.out.println ("Start splitting files");
Split (SrcName, size, destname);
SYSTEM.OUT.PRINTLN ("File partition complete");
}
private static void Split (String src,int mb,string dest) {
TODO auto-generated method stubs
File Srcfile=new file (src);
if (!srcfile.exists ())
{
Return
}
Long Countsize=srcfile.length ();
Long FILESIZE=1024*1024*MB;
int num=0;
if (countsize%filesize==0)
{
num= (int) (countsize/filesize);
}
Else
{
num= (int) (countsize/filesize) +1;
}
InputStream In=null;
try {
in = new FileInputStream (srcfile);
Bufferedinputstream bis=new Bufferedinputstream (in);
Bufferedoutputstream Bos=null;
byte bytes[]=new byte[1024*1024];
int len=-1;
for (int i = 0; i < num; i++) {
String newfile=dest+file.separator+srcfile.getname () + "-" +i;
Bos=new Bufferedoutputstream (New FileOutputStream (NewFile));
int count=0;
while ((Len=bis.read (bytes))!=-1) {
Bos.write (Bytes,0,len);
Bos.flush ();
Count+=len;
if (count>=filesize)
{
Break
}

}
Bos.close ();
}
Bis.close ();
In.close ();
} catch (FileNotFoundException e) {
TODO Auto-generated catch block
E.printstacktrace ();
} catch (IOException e) {
TODO Auto-generated catch block
E.printstacktrace ();
}

}
}

Merge

Package com.zkq.objectstream;

Import Java.io.BufferedInputStream;
Import Java.io.BufferedOutputStream;
Import Java.io.File;
Import Java.io.FileInputStream;
Import java.io.FileNotFoundException;
Import Java.io.FileOutputStream;
Import java.io.IOException;

public class HomeWork2 {
public static void Main (string[] args) {
System.out.println ("Start merging");
Merge ("E:\\temp", New File ("e:\\temp\\apache-tomcat-7.0.40-windows-x86.zip-0"), New file ("e:\\temp\\ Apache-tomcat-7.0.40-windows-x86.zip-1 "),
New File ("E:\\temp\\apache-tomcat-7.0.40-windows-x86.zip-2"),
New File ("e:\\temp\\apache-tomcat-7.0.40-windows-x86.zip-3"),
New File ("E:\\temp\\apache-tomcat-7.0.40-windows-x86.zip-4"),
New File ("E:\\temp\\apache-tomcat-7.0.40-windows-x86.zip-5"),
New File ("E:\\temp\\apache-tomcat-7.0.40-windows-x86.zip-6"),
New file ("E:\\temp\\apache-tomcat-7.0.40-windows-x86.zip-7"), New file ("e:\\temp\\ Apache-tomcat-7.0.40-windows-x86.zip-8 "));
SYSTEM.OUT.PRINTLN ("merger success");
}
private static void Merge (String dest,file. files) {
TODO auto-generated method stubs
String Filename=files[0].getname ();
Filename=files[0].getname (). substring (0,filename.lastindexof ("-"));
try {
Bufferedoutputstream bos=new Bufferedoutputstream (New FileOutputStream (Dest+file.separator+filename));
Bufferedinputstream Bis=null;
byte bytes[]=new byte[1024*1024];
int len=-1;
for (int i=0;i<files.length;i++)
{
Bis=new Bufferedinputstream (New FileInputStream (Files[i]));
while ((Len=bis.read (bytes))!=-1) {
Bos.write (bytes, 0, Len);
}
}
} catch (FileNotFoundException e) {
TODO Auto-generated catch block
E.printstacktrace ();
} catch (IOException e) {
TODO Auto-generated catch block
E.printstacktrace ();
}

}
}

Java split file and merge files (Zip,rar ....)