拷贝一个目录或者文件到指定路径下代码,Java代码库,德仔网

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【Java】拷贝一个目录或者文件到指定路径下
作者: / 发布于2011/1/14/ 593
<div><span style="color: #008000">/**</span><span style="color: #008000">
 * 拷贝一个目录或者文件到指定路径下
 * 
 * </span><span style="color: #808080">@param</span><span style="color: #008000"> source
 * </span><span style="color: #808080">@param</span><span style="color: #008000"> target
 </span><span style="color: #008000">*/</span><span style="color: #000000">
 </span><span style="color: #0000ff">public</span><span style="color: #000000"> </span><span style="color: #0000ff">static</span><span style="color: #000000"> </span><span style="color: #0000ff">void</span><span style="color: #000000"> copy(File source, File target)
 {
 File tarpath </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> File(target, source.getName());
 </span><span style="color: #0000ff">if</span><span style="color: #000000"> (source.isDirectory())
 {
 tarpath.mkdir();
 File[] dir </span><span style="color: #000000">=</span><span style="color: #000000"> source.listFiles();
 </span><span style="color: #0000ff">for</span><span style="color: #000000"> (</span><span style="color: #0000ff">int</span><span style="color: #000000"> i </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">0</span><span style="color: #000000">; i </span><span style="color: #000000"><</span><span style="color: #000000"> dir.length; i</span><span style="color: #000000">++</span><span style="color: #000000">)
{
copy(dir[i], tarpath);
}
}
</span><span style="color: #0000ff">else</span><span style="color: #000000">
 {
 </span><span style="color: #0000ff">try</span><span style="color: #000000">
 {
 InputStream is </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> FileInputStream(source);
 OutputStream os </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> FileOutputStream(tarpath);
 </span><span style="color: #0000ff">byte</span><span style="color: #000000">[] buf </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #0000ff">new</span><span style="color: #000000"> </span><span style="color: #0000ff">byte</span><span style="color: #000000">[</span><span style="color: #000000">1024</span><span style="color: #000000">];
 </span><span style="color: #0000ff">int</span><span style="color: #000000"> len </span><span style="color: #000000">=</span><span style="color: #000000"> </span><span style="color: #000000">0</span><span style="color: #000000">;
 </span><span style="color: #0000ff">while</span><span style="color: #000000"> ((len </span><span style="color: #000000">=</span><span style="color: #000000"> is.read(buf)) </span><span style="color: #000000">!=</span><span style="color: #000000"> </span><span style="color: #000000">-</span><span style="color: #000000">1</span><span style="color: #000000">)
 {
 os.write(buf, </span><span style="color: #000000">0</span><span style="color: #000000">, len);
 }
 is.close();
 os.close();
 }
 </span><span style="color: #0000ff">catch</span><span style="color: #000000"> (FileNotFoundException e)
 {
 e.printStackTrace();
 }
 </span><span style="color: #0000ff">catch</span><span style="color: #000000"> (IOException e)
 {
 e.printStackTrace();
 }
 }
 }</span>
</div>
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