java拼接文件_java实现两个文件的拼接
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
public class Append
{
static int count=0;
static int countb=0;
public static void main(String args[]) throws IOException
{
FileInputStream filea = new FileInputStream("d:\JavaXor\a");
FileInputStream fileb = new FileInputStream("d:\JavaXor\b");
File outfile=new File("d:\JavaXor\outfile");
int filesizea=filea.available();//计算文件的大小
int filesizeb=fileb.available();
FileOutputStream fos=new FileOutputStream(outfile);
int hasReada = 0;
int hasReadb=0;
byte[] bufa=new byte[1024];
byte[] bufc=new byte[1024];
byte[] buf_yua=new byte[filesizea%1024];
byte[] buf_yub=new byte[filesizeb%1024];
while( (hasReada=filea.read(bufa) )>0 )
{
if(count
{
for(int i=0;i
{
bufc[i]=(byte)(bufa[i] & 0xFF);
count++;
}
fos.write(bufc);
}
else if(count>=filesizea-filesizea%1024 && count
{
for(int j=0; count>=filesizea-filesizea%1024 && count
{
buf_yua[j]=(byte)(bufa[j] & 0xFF);
count++;
}
fos.write(buf_yua);
}
}
while( (hasReadb=fileb.read(bufa) )>0 )
{
if(countb
{
for(int i=0;i
{
bufc[i]=(byte)(bufa[i] & 0xFF);
countb++;
}
fos.write(bufc);
}
else if(countb>=filesizeb-filesizeb%1024 && countb
{
for(int j=0; countb>=filesizeb-filesizeb%1024 && countb
{
buf_yub[j]=(byte)(bufa[j] & 0xFF);
countb++;
}
fos.write(buf_yub);
}
}
}
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。
import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; public class Append { static int count=0; static int countb=0; public static void main(String args[]) throws IOException { FileInputStream filea = new FileInputStream("d:\JavaXor\a"); FileInputStream fileb = new FileInputStream("d:\JavaXor\b"); File outfile=new File("d:\JavaXor\outfile"); int filesizea=filea.available();//计算文件的大小 int filesizeb=fileb.available(); FileOutputStream fos=new FileOutputStream(outfile); int hasReada = 0; int hasReadb=0; byte[] bufa=new byte[1024]; byte[] bufc=new byte[1024]; byte[] buf_yua=new byte[filesizea%1024]; byte[] buf_yub=new byte[filesizeb%1024]; while( (hasReada=filea.read(bufa) )>0 ) { if(count { for(int i=0;i { bufc[i]=(byte)(bufa[i] & 0xFF); count++; } fos.write(bufc); } else if(count>=filesizea-filesizea%1024 && count { for(int j=0; count>=filesizea-filesizea%1024 && count { buf_yua[j]=(byte)(bufa[j] & 0xFF); count++; } fos.write(buf_yua); } } while( (hasReadb=fileb.read(bufa) )>0 ) { if(countb { for(int i=0;i { bufc[i]=(byte)(bufa[i] & 0xFF); countb++; } fos.write(bufc); } else if(countb>=filesizeb-filesizeb%1024 && countb { for(int j=0; countb>=filesizeb-filesizeb%1024 && countb { buf_yub[j]=(byte)(bufa[j] & 0xFF); countb++; } fos.write(buf_yub); } } } } 以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。