java 文件拷贝后文件损坏
今天用java写了一个关于文件拷贝的小工具FileUtil.java
我用了一个方法：copyFile(File source,File destnation)
我发现拷贝压缩文件，exe等文件后，文件大小一样，可是压缩文件无法打开，exe无法执行了
代码如下：
public static boolean copyFile(File source, File destnation) {
boolean rs = false;
InputStream is = null;
int count = 0;
OutputStream os = null;
byte buffer[] = new byte;
try {
if (source != null && destnation != null) {
if (source.isFile()) {
if (destnation.isDirectory()) {
File temp = new File(destnation.getAbsolutePath()
+ SEPRATOR + source.getName());
is = new FileInputStream(source);
os = new FileOutputStream(temp);
while (-1 != (count = is.read())) {
is.read(buffer, 0, buffer.length);
os.write(buffer, 0, buffer.length);
}
} else {
is = new FileInputStream(source);
os = new FileOutputStream(destnation);
while (-1 != (count = is.read())) {
is.read(buffer, 0, buffer.length);
os.write(buffer, 0, buffer.length);
}
}
}
rs = true;
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
is.close();
os.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return rs;
}
各位有什么办法吗？我实在是找不原因
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