Insert from button in jsp page

Question

hi, im new o jso and needto make an insert frim a jsp page with a button,
what should i do?
i made a javascript function but i really dont know if am i right and then i tried to call this function from the html tag
beside this i execute de query from java and it was success!!, but i dont know what is wrong when i try from the jsp page with de button, please help!
thx!
here it's my code:
<script type="text/javascript">
import java.sql.*;
function Agregar()
return
StringBuffer sb = new StringBuffer();
try{
Class.forName("org.postgresql.Driver");
Connection conn = DriverManager.getConnection("jdbc:postgresql://localhost:5432/Prueba","postgres","hola");
Statement stmt = conn.createStatement();
stmt.executeUpdate("INSERT INTO tbl_responsable (cedula,nombre,direccion) VALUES (14021752,'carlos','caracas')");
}catch(Exception e){
System.out.println("EXPLOTO");
</script>
ahora en el html que debo hacer??, o si tengo q hacer otra cosa???
html del boton:
<input type="submit" value="Agregar" action="Agregar()">
what should i do, what its wrong??
thx again!

Answer 1

try this
<input type="submit" onclick=" return Agregar();">
or
<input type="submit" onclick=" Agregar();">