Java导出txt文件的方法
本文实例讲述了Java导出txt文件的方法。分享给大家供大家参考。具体如下:
例子一
/** *export导出文件 */ @RequestMapping(value="/grab/export/csv",method={RequestMethod.GET}) publicvoidexportCsv(HttpServletRequestrequest,HttpServletResponseresponse){ StringuserId=ServletRequestUtils.getStringParameter(request,"userId","test"); ModelAndViewmav=newModelAndView(); SqlVideoListsqlVideoList=newSqlVideoList(); List<VideoListModel>list=newArrayList<VideoListModel>(); try{ list=sqlVideoList.selectSuccessDate(userId); }catch(SQLExceptione){ //TODOAuto-generatedcatchblock e.printStackTrace(); } //导出txt文件 response.setContentType("text/plain"); StringfileName="videolist"; try{ fileName=URLEncoder.encode("videolist","UTF-8"); }catch(UnsupportedEncodingExceptione1){ //TODOAuto-generatedcatchblock e1.printStackTrace(); } response.setHeader("Content-Disposition","attachment;filename="+fileName+".txt"); BufferedOutputStreambuff=null; StringBufferwrite=newStringBuffer(); Stringenter="\r\n"; ServletOutputStreamoutSTr=null; try{ outSTr=response.getOutputStream();//建立 buff=newBufferedOutputStream(outSTr); //把内容写入文件 if(list.size()>0){ for(inti=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(Exceptione){ e.printStackTrace(); }finally{ try{ buff.close(); outSTr.close(); }catch(Exceptione){ e.printStackTrace(); } } }
例子二:
/** *导出VIP兑换码。 *@throwsUnsupportedEncodingException */ @RequestMapping(value="/{exchangeId}/{packageId}/export",method=RequestMethod.GET) publicvoidwriteToTxt(@PathVariableStringexchangeId,@PathVariableStringpackageId,HttpServletRequestrequest,HttpServletResponseresponse)throwsUnsupportedEncodingException{ StringschoolId=this.getSchoolId(request);//网校ID //获取网校的VIP套餐相应的兑换码 VipCodeExampleexample=newVipCodeExample(); example.createCriteria().andSchoolIdEqualTo(schoolId).andPackageIdEqualTo(packageId).andExchangeIdEqualTo(exchangeId); List<VipCode>vipCodes=vipExchangeManager.getVipCode(example); if(vipCodes.size()>0){ response.setContentType("text/plain");//一下两行关键的设置 response.addHeader("Content-Disposition", "attachment;filename="+java.net.URLEncoder.encode(vipCodes.get(0).getName(),"UTF-8")+".txt"); //filename指定默认的名字 VipCodevipcode=newVipCode(); BufferedOutputStreambuff=null; StringBufferwrite=newStringBuffer(); Stringtab=""; Stringenter="\r\n"; ServletOutputStreamoutSTr=null; try{ outSTr=response.getOutputStream();//建立 buff=newBufferedOutputStream(outSTr); for(inti=0;i<vipCodes.size();i++){ vipcode=vipCodes.get(i); write.append(i+1);//序号 write.append(tab); write.append(vipcode.getExchangeCode()); write.append(tab); if("normal".equals(vipcode.getStatus())){ write.append("正常"); }else{ write.append("已兑换"); } write.append(enter); } buff.write(write.toString().getBytes("UTF-8")); buff.flush(); buff.close(); }catch(Exceptione){ e.printStackTrace(); }finally{ try{ buff.close(); outSTr.close(); }catch(Exceptione){ e.printStackTrace(); } } } }
希望本文所述对大家的java程序设计有所帮助。