先上匯出程式碼

String header = "序號,工號,姓名,獎項,獎品名,簽字\r\n";
	String comma = ",";

	@RequestMapping("/exportAllLuckyUser")
	public void exportAllLuckyUser(HttpServletResponse response) throws IOException {
		response.setHeader("Content-Disposition", "attachment; filename=LuckyUser.csv");
		
		StringBuilder csv = new StringBuilder(header);
		List<LuckyUser> list = luckyUserDao.find(Query.build());
		int i = 1;
		for (LuckyUser luckyUser : list) {
			csv
			.append(i++)
			.append(comma)
			.append("\t").append(luckyUser.getEmployeeNo())// 前面加\t,即tab符
			.append(comma)
			.append(luckyUser.getUsername())
			.append(comma)
			.append(luckyUser.getLevelName())
			.append(comma)
			.append(luckyUser.getPrizeName())
			.append(comma)
			.append("        ")
			.append("\r\n");
		}
		OutputStreamWriter osw = new OutputStreamWriter(response.getOutputStream(), "GBK");    
		osw.write(csv.toString());    
		osw.flush();   
	}
 

在匯出csv時,開啟csv前面的0消失,變成1234.解決辦法是在前面加上\t