google map draw route between source and destincation in web application using java and jsp -

i working in java,jsp. want know how draw google map display routes between different locations.

for example:

if there 1,2,3,4,5 addresess pins on map, click on 2nd 1 , click on 5th 1 find out route go 2nd 5th , onwards if click on 3rd find route 5th 3rd

route (2 --> 5 --> 3)

please me out this. thanks

you can either store locations in waypoints, or, can have multiple routes. note if use waypoints approach, sure set optimizewaypoints: false, won't mess click order.

i have demo waypoints approach http://jsfiddle.net/6grw5dre/

hope helps.