tomcat session cookie 值设置，tomcat jsessionid设置

##调用request.getSession()

@Controller
@RequestMapping("/cookie")
public class CookieController {@RequestMapping("/tomcatRequest")@ResponseBodypublic String tomcatRequest(HttpServletRequest request) {String yym = request.getParameter("yym");request.getSession().setAttribute("key", yym);return yym;}}

##源码

##请求中没有获取到jsessionid，新建值

##设置到response header

##reponse header写回客户端