java - Excel to String xls/xlsx different result -



want compare excel files each other see if same or not. can choose excel files , read them. have 2 excel sheets same content 1 in .xls , on in .xlsx format. use following code read files (for xls hssfworkbook , on)

private string xlsx(file inputfile) {         string outputstring = "";          // storing data string         stringbuffer data = new stringbuffer();         try {             // workbook object xlsx file             xssfworkbook wbook = new xssfworkbook(new fileinputstream(inputfile));              // first sheet workbook             xssfsheet sheet = wbook.getsheetat(0);             row row;             cell cell;              // iterate through each rows first sheet             iterator<row> rowiterator = sheet.iterator();              while (rowiterator.hasnext()) {                 row = rowiterator.next();                  // each row, iterate through each columns                 iterator<cell> celliterator = row.celliterator();                 while (celliterator.hasnext()) {                      cell = celliterator.next();                      data.append(cell + ";");                 }                 data.append("\n");             }             system.out.println(data.tostring());             outputstring = data.tostring();             wbook.close();         } catch (exception ioe) {             ioe.printstacktrace();         }          return outputstring;     }

in excel have blank cells - when read them xls data;;;;;data correct when same in xlsx data;data

somehow code skips empty cells?! how can fix problem? in advance

after more google research , trying different things found solution problem. iterator skips empty cells because have no value - null - in xls file seems not null - whatever

my code:

private string xlsx(file inputfile) {     string outputstring = "";     system.out.println("start");     // storing data string     stringbuffer data = new stringbuffer();     try {         // workbook object xlsx file         xssfworkbook wbook = new xssfworkbook(new fileinputstream(inputfile));          // first sheet workbook         xssfsheet sheet = wbook.getsheetat(0);        // decide rows process         int rowstart =  0;         int rowend =  sheet.getlastrownum()+1;          (int rownum = rowstart; rownum < rowend; rownum++) {            row r = sheet.getrow(rownum);             int lastcolumn = r.getlastcellnum();             (int cn = 0; cn < lastcolumn; cn++) {               cell c = r.getcell(cn);               if (c == null) {                  data.append("" + ";");               } else {                  data.append(c + ";");               }            }            data.append("\n");         }          system.out.println(data.tostring());         outputstring = data.tostring();         wbook.close();     } catch (exception ioe) {         ioe.printstacktrace();     }     system.out.println("end");     return outputstring; }

Comments

Post a Comment

Popular posts from this blog

asynchronous - C# WinSCP .NET assembly: How to upload multiple files asynchronously -

i using winscp .net assembly uploading files. want upload multiple files asynchronous way. have created method works single upload. public class uploadingdata { private sessionoptions _sessionoptions; private session _session; //connection etc private void onconnected() { foreach (var fileinfo in localfileslist) { var task = task.factory.startnew(() => uploadfilesasync(fileinfo)); } } private async task uploadfilesasync(string file) { string remotefilepath = _session.translatelocalpathtoremote(file, @"/", "/test_data_upload"); var uploading = _session.putfiles(file, remotefilepath, false); //when done await task.run(() => thread.sleep(1000)); } } please suggest me correct way. thanks you can use backgroundworker class this: string[] images = new string[50]; foreach (var path in images) { backgroundworker
Read more

aws api gateway - SerializationException in posting new Records via Dynamodb Proxy Service in API -

i getting "__type": "com.amazon.coral.service#serializationexception" as reply in postman & in test console in api gateway trying post record directly dynamodb using api proxy services.. referring aws article - https://aws.amazon.com/blogs/compute/using-amazon-api-gateway-as-a-proxy-for-dynamodb/ here's mapping { "tablename": "tablenamegoeshere", "item": { "id" : "$context.requestid" "eventname" : "$input.path('$.eventname')", "timestamp" : $input.path('$.timestamp'), "answers": "$util.parsejson($input.path('$.answers'))" } } update: did asked ... , worked if try add array of json objects gives me above same error - here's trying now. please - couldnt find on google well #set($inputroot = $input.path('$')) { "tablename": "answer", "item": {
Read more

asp.net - Problems sending emails from forum -

i have been redesigning site has message board, has been written guy looked after site. it has few problems , written in .asp , uses .mdb files database. you can see whole thing here . feel free post if helps, test thing have set using original files , new database. the basic problem when posts message, supposed email sent them, have posted it. when replies, originator supposed message, replier has been posted. i’d have thought @ point in process there should script/file in postmessage.asp? the postmessage.asp page below. <% option explicit %> <!-- #include virtual="common/adovbs.inc" --> <html> <head> <meta http-equiv="content-type" content="text/html; charset=windows-1252"> <meta name="generator" content="microsoft frontpage 4.0"> <meta name="progid" content="frontpage.editor.document"> <title>new page 2</title> <base target="_self"
Read more