##急，简单，怎么复制一个文件

[skyboy0720]

我E盘下有个DBF文件，我想复制到F盘去
怎么实现哟，我发现FILE类没有相应的方法，我renameTo结果就变成减切了，急
谢谢

[Fifotom]

那就读入E:\DBF文件，然后写出F:\DBF

import java.io.FileInputStream;
import java.io.FileOutputStream;

public class Test{
public static void main(String args[])
{
try
{
FileInputStream fis = new FileInputStream("E:\\DBF");
FileOutputStream fos = new FileOutputStream("F:\\DBF");

int tmp;
while(-1 != (tmp=fis.read()))
{
fos.write(tmp);
}
}catch(Exception e){e.printStackTrace();}
}
}

[lydvqq]

File newFile = new File(filename);
newFile.createNew();
FileInputStream fis = new FileInputStream(oldFile);
FileOutputStream fos = new FileOutputStream(newFile);
byte[] buf = new byte[1024];
try{
int count = fis.read(buf);
while(count!=-1)
{
fos.write(buf);
count = fis.read(buf);
}}catch(Exception e){}

[iwlk]

读, 写, 就可以实现复制了

[zhigangsun]

对啊，就是读写文件吗。先读到FileInputStream中，然后用FileOutputStream进行写文件操作。

[dztc]

mark

[dztc]

麻烦，
用这个多好<copy file="E:\DBF" tofile="F:\DBF"/>

[hiyu2218]

<copy file="E:\DBF" tofile="F:\DBF"/>是什么代码？？请问 dztc()

[jeffaple]

ant

[supersunyi]

public static boolean copyFile(String srcfile, String destfile) {
try {
File file = new File(destfile);
file.createNewFile();

File iFile = new File(srcfile);
File oFile = new File(destfile);

FileReader in = new FileReader(iFile);
FileWriter out = new FileWriter(oFile);

int c;
while ((c = in.read()) != -1) {
out.write(c);
}

in.close();
out.close();
return true;
} catch (IOException e) {
return false;
}
}