坑爹的文件名问题

由于以前导出文件名都是一个数字串,一直没有在意这个名称的问题.才有现在的懵逼

修改前: 

/**
 * 设置导出头部信息(xls格式)
 * 
 * @param response
 * @param fileName
 */
public static void setResponseForXls(HttpServletResponse response, String fileName) throws UnsupportedEncodingException {
   response.setCharacterEncoding("utf-8");
   response.setContentType("multipart/form-data");
   response.setHeader("Content-Disposition", "attachment;fileName=" + fileName + ".xls");
}

修改后: 

public static void setResponseForXls(HttpServletResponse response, String fileName) throws UnsupportedEncodingException {
   response.setCharacterEncoding("utf-8");
   response.setContentType("multipart/form-data");
   response.setHeader("Content-Disposition", "attachment;fileName=" + URLEncoder.encode(fileName , "UTF-8") + ".xls");
}

天真的以为有了response.setCharacterEncoding("utf-8");就OK了, 还得加个 URLEncoder.encode(fileName , "UTF-8");

来源：oschina

链接：https://my.oschina.net/watler/blog/3213344