How to get the selected value from drop down list in jsp

Question

lt select name  item  gt   lt c forEach items    combo   var  id  gt       lt option value    id   gt   id  lt  option gt   lt  c forEach gt   lt  select gt    How can we get the selected value from the above dropdown list

User · Answer

I know that this is an old question  but as I was googling it was the first link in a results  So here is the jsp solution     lt form action  some jsp  gt     lt select name  item  gt       lt option value  1  gt 1 lt  option gt       lt option value  2  gt 2 lt  option gt       lt option value  3  gt 3 lt  option gt     lt  select gt     lt input type  submit  value  Submit  gt   lt  form gt    in some jsp   request getParameter  item      this line will return the selected option  from the example it is  1  2 or 3

User · Answer

Direct value should work just fine   var sel   document getElementsByName  item    var sv   sel value  alert sv     The only reason your code might fail is when there is no item selected  then the selectedIndex returns -1 and the code breaks

User · Answer

lt  -- if you want to select value from drop-downlist here is jsp code  --  gt       lt body gt       lt form name  f1  method  get  action     gt          lt select name  clr  gt              lt option gt Red lt  option gt              lt option gt Blue lt  option gt                 lt option gt Green lt  option gt              lt option gt Pink lt  option gt          lt  select gt        lt input type  submit  name  submit  value  Select Color   gt       lt  form gt       lt  -- To display selected value from dropdown list  --  gt        lt                    String s request getParameter  clr                    if  s   null                                        out println  Selected Color is     s                             gt   lt  body gt

User · Answer

use jquery      item   change function       var x   this  val          Your value will be in x variable  use this variable value in your jsp  like this  x  this statement will give the value

User · Answer

I ve got one more additional option to get value by id   var idElement   document getElementById  idName    var selectedValue   idElement options idElement selectedIndex  value    It s a simple JavaScript solution

[jsp] How to get the selected value from drop down list in jsp?

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