在struts2中如何获得session id

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how to get session id in struts2
首先，你要得到：
How To Get The HttpServletRequest In Struts 2
这样做：

HttpServletRequest request = ServletActionContext.getRequest();

import javax.servlet.http.*;import org.apache.struts2.ServletActionContext;//--------------------------------public String execute(){    //try to get session id beginString jSessionId = null;//HttpServletRequest httpServletRequest=new HttpServletRequest();HttpServletRequest request = ServletActionContext.getRequest();HttpServletResponse response = ServletActionContext.getResponse();System.out.println("use getId");System.out.println(request.getSession().getId());        for (Cookie c : request.getCookies()) {            if (c.getName().equals("JSESSIONID"))                jSessionId = c.getValue();        }        System.out.println("Value Found In Request = " + jSessionId);        //下面的语句不起作用        jSessionId = "TestingOverrideOfJSessionId";        Cookie myCookie = new Cookie("JSESSIONID", jSessionId);        myCookie.setMaxAge(60 * 60 * 24 * 365); // Make the cookie last a year        response.addCookie(myCookie);//try to get session id end

运行结果：

use getId
FB0E8D7CA30C5B57FBD0CB6A7C50E241
Value Found In Request = FB0E8D7CA30C5B57FBD0CB6A7C50E241

两种取法得到的值是一样的。

参考：http://stackoverflow.com/questions/10170556/create-your-own-session-id-in-struts2-or-j2ee-app