生成txt电子档

public static void createTxt(String showMess,Integer line) {
		try {
			String filePath = "D:/showled"; 			//导出目录
			File shipmentFile = new File(filePath);
			if(!shipmentFile.exists()){
				shipmentFile.mkdirs();
			}
			shipmentFile = new File(filePath + File.separator +"bz"+"-"+line+".txt");
			OutputStreamWriter writer = new OutputStreamWriter(new FileOutputStream(shipmentFile), "GBK");
			writer.write(showMess.toString().trim().toCharArray());
			writer.flush();
			writer.close();
		} catch (Exception e) {
			throw new BusinessException(e.getMessage());
		}
	}