@SessionAttributes
Demo1（未加@SessionAttributes）
SpringMVCTest.java
package org.fool.springmvc;
import java.util.Date;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class SpringMVCTest {
@RequestMapping("/testSessionAttributes")
public String testSessionAttributes(Model model) {
User user = new User("Hello", "World", new Date());
model.asMap().put("user", user);
return "success";
}
}
success.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>success page</title>
</head>
<body>
request user: ${requestScope.user }
<br><br>
session user: ${sessionScope.user }
<br><br>
</body>
</html>
Result
Demo2（添加@SessionAttributes）
Result
Demo3（使用types属性值）
Result
