javascript - Use js export excel, tens of thousands of data, what should I do? -


i've used following method, doesn't fit 

export = (function() {              var uri = 'data:application/vnd.ms-excel;base64,'                 , template = '<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/tr/rec-html40"><head><meta charset="utf-8"><!--[if gte mso 9]><xml><x:excelworkbook><x:excelworksheets><x:excelworksheet><x:name>{worksheet}</x:name><x:worksheetoptions><x:displaygridlines/></x:worksheetoptions></x:excelworksheet></x:excelworksheets></x:excelworkbook></xml><![endif]--></head><body><table>{table}</table></body></html>'                 , base64 = function(s) { return window.btoa(unescape(encodeuricomponent(s))) ;}                 , format = function(s, c) { return s.replace(/{(\w+)}/g, function(m, p) { return c[p]; }); };         return function(table, name,filename) {             if (!table.nodetype) table = document.getelementbyid(table);             var ctx = {worksheet: name || 'worksheet', table: table.innerhtml};             // window.location.href = uri + base64(format(template, ctx));             document.getelementbyid("dlink").href = uri + base64(format(template, ctx));             document.getelementbyid("dlink").download = "finame";             document.getelementbyid("dlink").click();         };     })();

you might want create file on server , serve via ajax call or websocket.

the main problem client has parse data, , might quite slow/heavy depending on client.

also remember if table paginated need select every page manually parse table 1 big result set.

as of row limitations, according excel's specifications, excel 2007 , upwards should have 1,048,576 rows per workbook.


Comments

Post a Comment

Popular posts from this blog

python - Operations inside variables -

this question has answer here: evaluating mathematical expression in string 12 answers i want make python script finds maximum possible output using 2 operations. problem says there syntax error @ 2nd last line, in b in there. how can fix it? x = 0 = int(input("1st number:")) c = int(input("2nd number:" )) e = int(input("3rd number:" )) in range(4): if == 0: b = "+" elif == 1: b = "-" elif == 2: b = "/" else: b = "*" j in range(4): if j == 0: d = "+" elif j == 1: d = "-" elif j == 2: d = "/" else: d = "*" k = b c d e print(k) if you're after variables e on single line, couldn...
Read more

Generic Map Parameter java -

i having lot of methods of type: public static list<eduusers> getdetails(class c, map<string, integer> params) { list<eduusers> details = null; session session = hibernateutil.getsessionfactory().opensession(); transaction tx = null; try { tx = session.begintransaction(); criteria cr = session.createcriteria(c); (map.entry<string, integer> entry : params.entryset()) { cr.add(restrictions.eq(entry.getkey(), entry.getvalue())); } details = cr.list(); tx.commit(); } catch (exception asd) { log.debug(asd.getmessage()); if (tx != null) { tx.commit(); } } { session.close(); } return details; } i trying have generic method them , have written far: public static <t> list<t> getdetails(class<t> c, class<t> b) { l...
Read more

arrays - What causes a java.lang.ArrayIndexOutOfBoundsException and how do I prevent it? -

what arrayindexoutofboundsexception mean , how rid of it? here code sample triggers exception: string[] name = {"tom", "dick", "harry"}; for(int = 0; i<=name.length; i++) { system.out.print(name[i] +'\n'); } your first port of call should documentation explains reasonably clearly: thrown indicate array has been accessed illegal index. index either negative or greater or equal size of array. so example: int[] array = new int[5]; int boom = array[10]; // throws exception as how avoid it... um, don't that. careful array indexes. one problem people run thinking arrays 1-indexed, e.g. int[] array = new int[5]; // ... populate array here ... (int index = 1; index <= array.length; index++) { system.out.println(array[index]); } that miss out first element (index 0) , throw exception when index 5. valid indexes here 0-4 inclusive. correct, idiomatic for statement here be: for (int index = 0; index <...
Read more