How to export a txt file using Java

How to export a txt file using Java

This example describes how to export a txt file in Java. Share it with you for your reference. The details are as follows:

Example 1

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/** * Export File export */ @ 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 (); } // Export the txt file 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 (); // create Buff = new BufferedOutputStream (outSTr ); // Write the content to the file 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 (); } } }

Example 2:

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/** * Export the VIP redemption code. * @ 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); // network school ID // Obtain the redemption code for the VIP package of the online school. 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"); // The key settings of the two lines Response. addHeader ("Content-Disposition ", "Attachment; filename =" + java.net. URLEncoder. encode (vipCodes. get (0). getName (), "UTF-8") + ". txt "); // Filename specifies the default name VipCode vipcode = new VipCode (); BufferedOutputStream buff = null; StringBuffer write = new StringBuffer (); String tab = ""; String enter = "\ r \ n "; ServletOutputStream outSTr = null; Try { OutSTr = response. getOutputStream (); // create Buff = new BufferedOutputStream (outSTr ); For (int I = 0; I <vipCodes. size (); I ++ ){ Vipcode = vipCodes. get (I ); Write. append (I + 1); // serial number Write. append (tab ); Write. append (vipcode. getExchangeCode ()); Write. append (tab ); If ("normal". equals (vipcode. getStatus ())){ Write. append ("normal "); } Else { Write. append ("Redeemed "); } 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 (); } } } }

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