response 流 文件下载
post" action="<%=request.getContextPath()%>/business/com.asiainfo.boss.so.order.base.web.soframe.FileInputUtilAction?action=createDownExcel">
??<input type="hidden" id="ERRORMSG" name="ERRORMSG"/>
?</form>
2、在jsp中用js调用：errMsg是要传到后台解析生成文件的数据
document.getElementById("ERRORMSG").value = errMsg;
document.getElementById("downloadForm").submit();
3、后台代码：
?public void createDownExcel(HttpServletRequest request,HttpServletResponse response)throws Exception{
??? ?try {
??????
??????String errMsg=HttpUtil.getAsString(request, "ERRORMSG");
??? ??HSSFWorkbook workbook =null;
???if(errMsg!=null&&!"".equals(errMsg)){
????String[] errMsgArr=errMsg.split("\\$\\$");
????if(errMsgArr!=null&&errMsgArr.length>0){
????? workbook= new HSSFWorkbook();
????? HSSFSheet sheet =workbook.createSheet("failrecord");
????? for(int i=0;i<errMsgArr.length;i++){
?????? HSSFRow row=sheet.createRow(i);
??????String tempMsg[]=errMsgArr[i].split("#");
??????String tipMsg=tempMsg[1];
??????String[] colMsgArr=tempMsg[0].split(",");
??????for(short j=0;j<colMsgArr.length;j++){
???????HSSFCell cell=row.createCell(j);
?????? cell.setEncoding(HSSFCell.ENCODING_UTF_16);//设置编码
???????cell.setCellValue(colMsgArr[j]);
???????
??????}
?????? HSSFCell celltip=row.createCell((short)colMsgArr.length);
??????celltip.setEncoding(HSSFCell.ENCODING_UTF_16);//设置编码
??????celltip.setCellValue(tipMsg);??????
??????System.out.println(tipMsg);
?????}
????? String fileName = "fail_records.xls";
????? response.reset();
??????response.setCharacterEncoding("UTF-8");
????? response.setContentType("application/x-download;charset=UTF-8");
????? response.setHeader("Content-Disposition", "attachment;charset=UTF-8;filename=""+ toUtf8String(fileName) + """);
????? workbook.write(response.getOutputStream());
????? response.getOutputStream().flush();
????? response.getOutputStream().close();
????}
???}
??} catch (Exception e) {
???log.error("导出错误数据出错，错误信息："+e.getMessage());
??}
??? }
