javascript - Spring Framework to Optimize SQL connection? -

-

so on webproject succesfully connects , reads sql database. code connects looks this. 

//from here var connection = new activexobject("adodb.connection") ; var connectionstring="data source=<server>;initial catalog=<catalog>;user id=<user>; password=<password>;provider=sqloledb"; connection.open(connectionstring); var rs = new activexobject("adodb.recordset"); //to here  rs.open("select * table", connection); rs.movefirst while(!rs.eof) { document.write(rs.fields(1)); rs.movenext; }  rs.close; connection.close;

simple , effective , have working fine. first 4 (marked here here) run horribly slow , have reconnect every time need read or write sql database... lot project. every time run code (which on every other webpage creating in project) have sit , wait code run.

i have been told/ required project, configure design using javascript , spring framework. apparently there either a) way hold connection don't have run code every time hit go new page or b) different method of connection sql database (something replace 4 lines of code. both of have using spring framework.

i have never used spring framework before , need learn fast. been watching website tutorials still have no idea or how it. let me know if have ideas.

please , thanks.

i think got wrong here: aren't supposed access database javascript because user can access data way, or delete everything.

you should access database server-side only.


Comments

Post a Comment

Popular posts from this blog

c# - SVN Error : "svnadmin: E205000: Too many arguments" -

-
i trying reposotries using c# code process svncommand = null; var psi = new processstartinfo("svnadmin"); psi.redirectstandardoutput = true; psi.redirectstandarderror = true; psi.useshellexecute = false; psi.arguments= @"dump c:\repositories\myrepo > c:\temp\myrepodumpfile.dump"; using (svncommand = process.start(psi)) { var myoutput = svncommand.standardoutput; var myerror = svncommand.standarderror; debug.write("output :" + environment.newline + environment.newline + myoutput.readtoend() + environment.newline + "error :" + environment.newline + environment.newline + myerror.readtoend()); svncommand.close(); } when use dump command commandline svnadmin dump c:\repositories\myrepo > c:\temp\myrepodumpfile.dump it works fine when try ...
Read more

c# - Copy ObservableCollection to another ObservableCollection -

-
how copy observablecollection item observablecollection without reference of first collection? here observablecollection item value changes affecting both collections. code private observablecollection<ratemodel> _allmetalrate = new observablecollection<ratemodel>(); private observablecollection<ratemodel> _metalrateondate = new observablecollection<ratemodel>(); public observablecollection<ratemodel> allmetalrate { { return this._allmetalrate; } set { this._allmetalrate = value; notifypropertychanged("metalrate"); } } public observablecollection<ratemodel> metalrateondate { { return this._metalrateondate; } set { this._metalrateondate = value; notifypropertychanged("metalrateondate"); } } foreach (var item in metalrateondate) allmetalrate.add(item); what causing , how can solve it? you need clone object referenced item before it's a...
Read more

All overlapping substrings matching a java regex -

-
is there api method returns (possibly overlapping) substrings match regular expression? for example, have text string: string t = 04/31 412-555-1235; , , have pattern: pattern p = new pattern("\\d\\d+"); matches strings of 2 or more characters. the matches are: 04, 31, 412, 555, 1235. how overlapping matches? i want code return: 04, 31, 41, 412, 12, 55, 555, 55, 12, 123, 1235, 23, 235, 35. theoretically should possible -- there obvious o(n^2) algorithm enumerates , checks substrings against pattern. edit rather enumerating substrings, safer use region(int start, int end) method in matcher . checking pattern against separate, extracted substring might change result of match (e.g. if there non-capturing group or word boundary check @ start/end of pattern). edit 2 actually, it's unclear whether region() expect zero-width matches. specification vague, , experiments yield disappointing results. for example: string line = "xx90xx"; strin...
Read more