Java匯出txt檔案的方法

Java匯出txt檔案的方法

 　　本文執行個體講述了Java匯出txt檔案的方法。分享給大家供大家參考。具體如下：

　　例子一

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/** * export匯出檔案 */ @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(); } //匯出txt檔案 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 = "\r\n"; ServletOutputStream outSTr = null; try { outSTr = response.getOutputStream(); // 建立 buff = new BufferedOutputStream(outSTr); //把內容寫入檔案 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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/** * 匯出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 // 擷取網校的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");// 一下兩行關鍵的設定 response.addHeader("Content-Disposition", "attachment;filename="+java.net.URLEncoder.encode(vipCodes.get(0).getName(),"UTF-8")+".txt"); // filename指定預設的名字 VipCode vipcode=new VipCode(); BufferedOutputStream buff = null; StringBuffer write = new StringBuffer(); String tab = " "; String enter = "\r\n"; 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程式設計有所協助。