JSTL(java) or java

Question

How to Fetch Records From Database Using JSTL in JSP page of Java

<%

try{

Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/atten?" + "user=root&password=xxxx");

Statement statement = connection.createStatement() ;

resultset =statement.executeQuery("select distinct time_table_class_id from time_table_details" ) ;

%>

<center>

<h1> Drop down box or select element</h1>

<select id="semester" onchange="loadSemester();">

<% while(resultset.next()){ %>

<option value="<%= resultset.getString(1)%>"><%= resultset.getString(1)%></option><br>

<% } %>

</select>

<input type="submit" name="Submit" value="click">

</center>

<%

}

catch(Exception e)

{

out.println("wrong entry"+e);

}

%>

In this code drop down created but I want to when select a list from drop down, and clicking on click button all the data regarding fetch from database? Everything happen on same page.