Session

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpSession;

import org.springframework.web.bind.annotation.CrossOrigin;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestParam;

import org.springframework.web.bind.annotation.RestController;

@RestController

@RequestMapping("/test")

@CrossOrigin

public class HelloSessionController {

	@RequestMapping("/add")

	public String addSession(HttpServletRequest httpServletRequest,

							@RequestParam("username")String username) {

		HttpSession session = httpServletRequest.getSession();

		session.setAttribute("username",username);

		session.setMaxInactiveInterval(10000);

		return "添加成功";

	}

	@RequestMapping("/show")

	public Object showSession(HttpServletRequest httpServletRequest) {

		HttpSession session = httpServletRequest.getSession();

		Object object = session.getAttribute("username");

		return object;

	}

}

Cookie

import javax.servlet.http.Cookie;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestParam;

import org.springframework.web.bind.annotation.RestController;

@RestController

@RequestMapping("/cookie")

public class HelloCookieController {

	@RequestMapping("/add")

	public String addCookie(HttpServletRequest request,HttpServletResponse response,

					@RequestParam("username")String username) {

		Cookie cookie = new Cookie("username", username);

		cookie.setPath(request.getContextPath());

		cookie.setMaxAge(80000);

		response.addCookie(cookie);

		return "添加成功";

	}

	@RequestMapping("/show")

	public String showCookie(HttpServletRequest request) {

		Cookie[] cookies = request.getCookies();

		for (Cookie cookie : cookies) {

			if(cookie.getName().equals("username")) {

				System.out.println(cookie.getName());

				System.out.println(cookie.getValue());

				return cookie.getValue().toString();

			}

		}

		return "null";

	}

}