今天用java web 导出csv文件时,导出的csv文件内容乱码.  之前因为过滤器一直用utf-8,最后在代码中设置ContentType时试了下gbk居然没乱码了.

猜想大概原因是本地打开的格式为gbk吧.

相关代码:

import java.io.IOException;

import java.net.URLEncoder;

import java.util.Date;

import java.util.List;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import com.itheima.domain.Sale;

import com.itheima.factory.BasicFactory;

import com.itheima.service.OrderService;

public class SaleListServlet extends HttpServlet {

public void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

String fileName = new String(

("销售榜单_" + new Date().toLocaleString() + ".csv").getBytes("GBK"),

"ISO-8859-1");

//下面这段必须放在Writer前,否则还是乱码

response.setContentType(this.getServletContext().getMimeType(fileName) + ";charset=gbk");

// response.setContentType("application/csv;charset=gbk");

// 获取销售榜单

OrderService service = BasicFactory.getFactory().getInstance(OrderService.class);

List saleList = service.getSaleList();

// 生成数据

StringBuffer buffer = new StringBuffer();

buffer.append("商品id,商品名称,销售数量\r\n");

for (Sale sale : saleList) {

buffer.append(sale.getId() + "," + sale.getName() + "," + sale.getSalenum() + "\r\n");

}

String str = buffer.toString();

response.getWriter().write(str);

// 提供下载

response.setHeader("Content-disposition", "attachment;filename=" + fileName);

}

public void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

doGet(request, response);

}

}