将单个文件压缩成zip文件

[loukcn]

就是将程序生成的文件再压缩成zip包，命名规则是原文件名的一部分，如：123-123-123.xml to 123-123.zip 请问各位该如何处理

[shadao]

private void zip(File file) throws IOException {
		if(!file.exists())
			throw new FileNotFoundException();
		if(file.isDirectory())
			throw new FileNotFoundException();
		
		String newName = file.getName();
		if(newName.lastIndexOf('.')!=-1){
			newName = newName.substring(0, newName.lastIndexOf('.'));
		}
		
		newName += ".zip";
		
		File newFile = new File(file.getParent(),newName);
		
		ZipOutputStream out = new ZipOutputStream(new FileOutputStream(newFile));
		
		ZipEntry ze = new ZipEntry(file.getName());
		
		out.putNextEntry(ze);
		
		FileInputStream in = new FileInputStream(file);
		
		byte[] bfs = new byte[1024];
		int rr;
		while((rr = in.read(bfs))!=-1){
			out.write(bfs, 0, rr);
		}
		in.close();
		
		
		out.flush();
		
		out.closeEntry();
		out.close();
	}