JAVA拷贝

Java代码

/*
*Tochangethistemplate,chooseTools|Templates
*andopenthetemplateintheeditor.
*/

packagecn.lsd;

importjava.io.File;
importjava.io.FileInputStream;
importjava.io.FileNotFoundException;
importjava.io.FileOutputStream;
importjava.io.IOException;
importjava.util.logging.Level;
importjava.util.logging.Logger;

/**
*
*@date2008-11-26
*@authorlsd
*/
publicclassCpp{
privateStringsourceFile;
privateStringdestFile;

publicCpp(StringsourceFile,StringdestFile){
this.sourceFile=sourceFile;
this.destFile=destFile;
doCopy();
}

privatevoiddoCopy(){
FileInputStreamin=null;
FileOutputStreamout=null;
byte[]buffer=newbyte[102400];
try{
in=newFileInputStream(this.sourceFile);
Filedest=newFile(this.destFile);
if(!dest.exists()){//目标文件对应的目录不存在，创建新的目录
intindex=newString(this.destFile).lastIndexOf("/");
Stringpath=this.destFile.substring(0,index);
newFile(path).mkdirs();
}
out=newFileOutputStream(this.destFile);
intnum=0;
while((num=in.read(buffer))!=-1){
out.write(buffer,0,num);
}
}catch(FileNotFoundExceptionex){
Logger.getLogger(Cpp.class.getName()).log(Level.SEVERE,null,ex);
}catch(IOExceptione){
Logger.getLogger(Cpp.class.getName()).log(Level.SEVERE,null,e);
}finally{
try{
if(in!=null)
in.close();
if(out!=null)
out.close();
}catch(IOExceptionex){
Logger.getLogger(Cpp.class.getName()).log(Level.SEVERE,null,ex);
}

}
}

publicstaticvoidmain(String[]args){
StringsourceFile="d:/颐和园yhy[小新奉献].rmvb";
StringdestFile="D:/s/sd/1.rmvb";
longstartTime=System.currentTimeMillis();
System.out.println("starttocopy");
Cppc=newCpp(sourceFile,destFile);
longendTime=System.currentTimeMillis();
longtime=(endTime-startTime)/1000;
System.out.println("copyend;cost:"+time);
}

}