如何访问Jersey REST服务中的http会话对象？

Question

Hi i want to access data to anf from http session object in rest service i have googled a lot and find that @context of javax.ws.rs.core.Context gives HttpServlet object but as it is interfaec i always get it null. my code is as following

@Context
private HttpServletRequest request;
private HttpSession session = request.getSession(); 

@Path(value = "/listAllQuestion")
@GET
@Produces(MediaType.APPLICATION_JSON)
public Response listAllQuestion(){
    int pgNo = 1;
    int pgSize = 5;
    IPResponse response = new IPResponse();
    try {
        if (session.getAttribute(IpConstants.TOPIC) != null
                && session.getAttribute(IpConstants.LEVEL) != null) {
                    session.removeAttribute(IpConstants.TOPIC);
                    session.removeAttribute(IpConstants.LEVEL); 
        }                                              
        session.setAttribute(IpConstants.PAGENO, pgNo);
        session.setAttribute(IpConstants.PAGESIZE, pgSize);
        quesList = questionService.listAllQuestion(pgNo, pgSize);

Answer 1

please try this:

Move your request.getSession() down inside your listAllQuestion() method, as so:

public Response listAllQuestion(){
    HttpSession session = request.getSession():

I don't believe your request object will be populated outside the context of an actual request handler.