How to send parameters from a servlet

In your code, String test = "/response2.jsp?myStation=5";

You are adding myStation=5 as query string.As the query string parameters are stored as request parameters in Request Object.

Therefore you can use ,

It works fine.Thanks.

In your servlet use request.setAttribute in the following manner

request.setAttribute("myStation", value);

where value happens to be the object you want to read later.

and extract it later in a different servlet/jsp using request.getAttribute as

String value = (String)request.getAttribute("myStation")

or

<%= request.getAttribute("myStation")%>

Do note that the scope of usage of get/setAttribute is limited in nature - attributes are reset between requests. If you intend to store values for longer, you should use the session or application context, or better a database.

Attributes are different from parameters, in that the client never sets attributes. Attributes are more or less used by developers to transfer state from one servlet/JSP to another. So you should use getParameter (there is no setParameter) to extract data from a request, set attributes if needed using setAttribute, forward the request internally using RequestDispatcher and extract the attributes using getAttribute.

Use getParameter(). An attribute is set and read internally within the application.