JSESSIONID is a cookie in J2EE web application which is used in session tracking. Since HTTP is a stateless protocol, we need to use any session to remember state. JSESSIONID cookie is created by web container and send along with response to client.
视图解析,请求Controller返回的视图类型: @Controller @RequestMapping("/test") public class TestController { //正常返回ModelAndView @RequestMapping("/modelAndView") public ModelAndView retModelAndView(){ ModelAndView mv = new ModelAndView("hello"