The overall meaning of sessionScope is to obtain the value stored in (key, value), that is, (key);
Scenario: Some entity objects can be placed in the HttpSession object to ensure that the properties of this object can be obtained at any time during a session. For example, the information of the logged-in user can be written to the session to ensure that the page can obtain and display the status information of the user at any time. Take this as an example below.
1. The background writes the user entity object to the session (HttpSession), which is written from the interceptor. The userInfo in the code is the login user information obtained from the single sign-in server.
User user = new User(userInfo);
("loginUser", user);
2. The front desk uses the c tag set attribute value
refer to:/jsp/jstl_core_set_tag.html
<%@ taglib prefix="c" uri="/jsp/jstl/core"%>
<c:set var="user" value="${}"/>
3. Use, name is the property in the userInfo object [javascript] view plain copy ${}
${}
This is the article about the detailed explanation of the JSP using sessionScope to obtain session. For more related JSP using sessionScope to obtain session content, please search for my previous article or continue browsing the related articles below. I hope everyone will support me in the future!