Java導出txt文件的方法

 　　本文實例講述了Java導出txt文件的方法。分享給大家供大家參考。具體如下：

　　例子一

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 /** * export導出文件 */ @RequestMapping(value="/grab/export/csv",method={RequestMethod.GET}) public void exportCsv(HttpServletRequest request,HttpServletResponse response){ String userId = ServletRequestUtils.getStringParameter(request, "userId", "test"); ModelAndView mav=new ModelAndView(); SqlVideoList sqlVideoList =new SqlVideoList(); List<VideoListModel> list = new ArrayList<VideoListModel>(); try { list = sqlVideoList.selectSuccessDate(userId); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } //導出txt文件 response.setContentType("text/plain"); String fileName="videolist"; try { fileName = URLEncoder.encode("videolist", "UTF-8"); } catch (UnsupportedEncodingException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } response.setHeader("Content-Disposition","attachment; filename=" + fileName + ".txt"); BufferedOutputStream buff = null; StringBuffer write = new StringBuffer(); String enter = "rn"; ServletOutputStream outSTr = null; try { outSTr = response.getOutputStream(); // 建立 buff = new BufferedOutputStream(outSTr); //把內容寫入文件 if(list.size()>0){ for (int i = 0; i < list.size(); i++) { write.append(list.get(i).getUrl()+","); write.append(list.get(i).getTitle()); write.append(enter); } } buff.write(write.toString().getBytes("UTF-8")); buff.flush(); buff.close(); } catch (Exception e) { e.printStackTrace(); } finally { try { buff.close(); outSTr.close(); } catch (Exception e) { e.printStackTrace(); } } }

　　例子二：

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 /** * 導出VIP兌換碼。 * @throws UnsupportedEncodingException */ @RequestMapping(value = "/{exchangeId}/{packageId}/export", method = RequestMethod.GET) public void writeToTxt(@PathVariable String exchangeId,@PathVariable String packageId, HttpServletRequest request,HttpServletResponse response) throws UnsupportedEncodingException { String schoolId = this.getSchoolId(request); // 網校ID // 獲取網校的VIP套餐相應的兌換碼 VipCodeExample example=new VipCodeExample(); example.createCriteria().andSchoolIdEqualTo(schoolId).andPackageIdEqualTo(packageId).andExchangeIdEqual To(exchangeId); List<VipCode> vipCodes = vipExchangeManager.getVipCode(example); if(vipCodes.size()>0){ response.setContentType("text/plain");// 一下兩行關鍵的設置 response.addHeader("Content-Disposition", "attachment;filename="+java.net.URLEncoder.encode(vipCodes.get(0).getName(),"UTF-8")+".txt"); // filename指定默認的名字 VipCode vipcode=new VipCode(); BufferedOutputStream buff = null; StringBuffer write = new StringBuffer(); String tab = " "; String enter = "rn"; ServletOutputStream outSTr = null; try { outSTr = response.getOutputStream();// 建立 buff = new BufferedOutputStream(outSTr); for (int i = 0; i < vipCodes.size(); i++) { vipcode = vipCodes.get(i); write.append(i+1); //序號 write.append(tab); write.append(vipcode.getExchangeCode()); write.append(tab); if("normal".equals(vipcode.getStatus())){ write.append("正常"); }else{ write.append("已兌換"); } write.append(enter); } buff.write(write.toString().getBytes("UTF-8")); buff.flush(); buff.close(); } catch (Exception e) { e.printStackTrace(); } finally { try { buff.close(); outSTr.close(); } catch (Exception e) { e.printStackTrace(); } } } }

　　希望本文所述對大家的java程序設計有所幫助。