el表达式获取requset,session 里得值

${requestScope.attribute}

eg.

java 代码部分:

req.setAttribute("secret", secret);//往req里放值

req.getSession().setAttribute("secret", secret);//往session里放值

jsp代码部分:

<!-- 从request里取值 -->

${requestScope.secret}<br>

<!-- 从session里取值 -->

${sessionScope.secret}