java实现CSV文件输出 收藏

在很多时候我们都需要将一些数据集合以某种文件格式输出,其中CSV文件输出是一种比较常用的方式.

下面是一个简单的实现CSV文件输出的代码,与大家共享.

public static boolean createCsv(HttpServletResponse Response, QueryData qryData, String[][] columnName) throws Exception

{

String data = "";

SimpleDateFormat dataFormat = new SimpleDateFormat("yyyyMMddHHmm");

Date today = new Date();

String dateToday = dataFormat.format(today);

if (qryData.size() == 0 || columnName.length == 0)

return false;

data += "编号,";

for (int i = 0; i < columnName.length; i++)

{

data += columnName[i][1] + ",";

}

data += "\n";

for (int i = 0; i < qryData.size(); i++)

{

data += String.valueOf(i + 1) + ",";

for (int j = 0; j < columnName.length; j++)

{

data += qryData.getRow(i).get(columnName[j][0]) + ",";

}

data += "\n";

}

StringBuilder str = new StringBuilder();

str.append(data);

Response.setHeader("Content-Disposition", "attachment; filename=\"" + dateToday + ".csv" + "\"");

Response.setCharacterEncoding("shift-jis");

Response.setContentType("text/plain;charset=shift-jis");

PrintWriter out = Response.getWriter();

out.write(str.toString());

out.flush();

out.close();

return true;

}