java - Submitting form with multiple dropdown boxes? -


in below code having multple dropdown boxes inside single form.in dropdown boxes showing default values. when user gets sign in user can change values inside dropdowns , clicks submit button.

<form method="post" id="myform" name="myform">                                   <%                                                         while(rs1.next())                                                 {                                    %>                                                               <table id="main_table" style="width: 600px; border: 0px solid #ccc;  padding: 1px; border-spacing: 1px;  ">                                                    <tbody>                                                  <tr class="ab" style="background-color:#3f92aa; color:white; width:600px; ">                                                  <td colspan="2" class="flip" style="width:125px; font-size:14px; text-align:left; font-family:palatino linotype;"><%=rs1.getstring(3) %><input type="hidden" name="statename" value="goa"></td>                                                  <td colspan="2" class="flip"  style="width:125px; font-size:14px; text-align:center; font-family:palatino linotype;"><%=rs1.getstring(4) %></td>                                                  <td colspan="2" class="flip"  style="background-color:#cb3315; width:125px; font-size:14px; text-align:center; font-family:palatino linotype;"><%=rs1.getstring(5) %></td>                                                    <td colspan="2" style="width:125px; font-size:13px; font-family:palatino linotype; text-align:center;">                                                    <table style="border: 0px;border-spacing: 0px;padding: 0px;">                                                    <tr>                                                                        <td>&nbsp;</td>                                                                               <td>                                                                                       <select name="<%=rs1.getstring(3) %>">                                                                                               <option value="<%=rs1.getstring(5) %>"><%=rs1.getstring(5) %></option>                                                                                <%                                                                                 statement stmt2=null;                                                                                 dbconnection db2=new dbconnection();                                                                                 connection con2=db2.dbconn();                                                                                 try{                                                                                 stmt2 = con2.createstatement();                                                                                             resultset rs2 = (resultset) stmt2.executequery("select distinct winnerparty election_history;");                                                                                          while(rs2.next())                                                                                          {                                                                                  %>                                                                                                   <option value="<%=rs2.getstring(1) %>"><%=rs2.getstring(1) %></option>                                                                                  <%                                                                                            }                                                                                      }                                                                                      catch(sqlexception e){                                                                                      e.printstacktrace();                                                                                      }                                                                                      finally{                                                                                      con2.close();                                                                                      stmt2.close();                                                                                       }                                                                                   %>                                                                                         </select>                                                                                       </td>                                                                                       </tr>                                                                                       </table>                                                                       </td>                                                                    </tr>                                                                    </tbody>                                         </tbody>                                          </table>                                       </form>

servlet code:

con=dbconnection.dbconn();                  stmt=con.createstatement();                    string statenames=request.getparameter("statename");                  system.out.println("this state name ==="+statenames);                  resultset rs = (resultset) stmt.executequery("select distinct constituency election_history state='"+statenames+"'");                  //rs.next();                 while(rs.next()){                          constituencies.add(rs.getstring(1));                    }                  system.out.println("list of constituencies are=="+constituencies);                   for(int i=0;i<constituencies.size();i++)                 {                     string cname=constituencies.get(i);                     system.out.println("cname value is=="+cname);                       string cselected=request.getparameter(cname);                     system.out.println("cselected value is=="+cselected);                     map.put(cname, cselected);                 }

output:

inside editypname... connected database state name ===goa list of constituencies are==[panaji, mormugao] cname value is==panaji cselected value is==null cname value is==mormugao cselected value is==inc

but here whats problem when submiting form getting 1 value(cselected) of dropdown inside servlet can see inside output , remaining values null. can tell me issue here??

if have multiple drop downs named statename, don't use string statenames = request.getparameter("statename"); rather use:

string[] statenames = request.getparametervalues("statename");

Comments

Post a Comment

Popular posts from this blog

android - Get AccessToken using signpost OAuth without opening a browser (Two legged Oauth) -

i using signpost oauth access data magento server. have read various tutorials on same , reach point open browser user can enter credentials. however, per requirement have automate part. hence, user should not browser page. have set-up done on server side ( magento ), hit url , returned call page. same through program in android. i have tried below, consumer = new commonshttpoauthconsumer(key, secret); provider = new commonshttpoauthprovider(oauth_init_url,access_token_url, authorize_url); try { provider.retrieverequesttoken(consumer, oauth.out_of_band); log.d("tokens" , consumer.gettoken() + " -- " + consumer.gettokensecret()); } and request tokens. dont know how bypass next step. tried directly accessing accesstoken (stupid of me) provider.retrieveaccesstoken(consumer, "mycallback://callback"); no luck, ends in oauth.signpost.exception.oauthnotauthorizedexception: authorization failed (server replied 401). ...
Read more

org.mockito.exceptions.misusing.InvalidUseOfMatchersException: mockito -

getting error org.mockito.exceptions.misusing.invaliduseofmatchersexception: invalid use of argument matchers! 1 matchers expected, 2 recorded. exception may occur if matchers combined raw values: //incorrect: somemethod(anyobject(), "raw string"); when using matchers, arguments have provided matchers. example: //correct: somemethod(anyobject(), eq("string matcher")); at when( getprogramservice .callservice(any(getprogramtype.class))) .thenreturn(jaxbresponse); please explain error , possible resolution the code posted looks fine; don't see problem it. code before or above causing exception. key here: invalid use of argument matchers! 1 matchers expected, 2 recorded. any , used above, doesn't return "special kind of null" or "special kind of getprogramtype"; don't exist. instead, returns null , side effect puts matcher on stack. whe...
Read more

google shop client API returns 400 bad request error while adding an item -

i'm working on solution add items in google shopping market java application. following tutorial real mess because of missing classes of laste release, after setting 1.5-beta maven managed make base example typecheck correctly classes. still can make simple task of adding 1 item. instead of posting whole code i'm posting part creates product feed. private product createproduct(string id) { product product = new product(); product.title = "red wool sweater"; product.content = new content( "text", "comfortable , soft, sweater keep warm on " + "cold winter nights. red , blue stripes."); product.appcontrol = new appcontrol(); product.appcontrol.addrequireddestination("productads"); product.externalid = id; product.lang = "it"; product.country = "it"; product.condition = "nuovo"; product.price = new price("eu...
Read more