//response信息的设置
response.reset();
response.setContentType("application/pdf");
//导出PDF名称
String fileName = "客户数据分析结果报表";
//inline为在线打开
response.setHeader("Content-Disposition", "inline; filename=\""
+ new String(fileName.getBytes("gb18030"), "ISO8859-1") + ".pdf" + "\"");
response.setContentLength(ba.size());
response.setHeader("Content-Disposition", "attachment; filename=\"+filename);
response.setHeader("Content-Disposition", "inline; filename=\"+filename);
response.setHeader("Content-Disposition", "inline; filename=\"+filename);