how to pass parameter to open modal dialogue box in bootstrap using jsp? -

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i want open modal dialogue box in bootstrap passing parameter in jsp. when user clicks on button dialogue box must opened.

<a data-id="+subid+" type='button' class='btn btn-success btn-lg btn-block' data-toggle='modal' data-target='#mymodal'>view order</a>

i understand want if parameter passed jsp button appear 

     <% string msg2=(string)request.getsession().getattribute("name-param");%>      <% if ( (msg2==null || msg2.isempty()) ) { %>         //what want                               <% } else if(msg2!=null) { %>  <a data-id="+subid+" type='button' class='btn btn-success btn-lg btn-block' data-toggle='modal' data-target='#mymodal'>view order</a>                             <% }  %>

and in servlet set parameter : 

request.getsession().setattribute("name-param",parameter);

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