spring boot的基本配置——spring boot的web开发——Thymeleaf模板引擎———通过HttpSession session的session.setAttribute返回数据给

package com.test.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

@Controller
public class StartMainController
{
    @RequestMapping("/1")
    public String home1()
    {
        return "hello";
    }

    @RequestMapping("/2")
    @ResponseBody
    public String home2()
    {
        return "123";
    }

    @RequestMapping("/3")
    public String home3(Model model)
    {

        model.addAttribute("a","123");

        model.addAttribute("b","abc");

        model.addAttribute("c","def");

        return "hello";

    }

    @RequestMapping(value = "/4")
    public String home4(HttpServletRequest request, Model model)
    {
        String firstName = request.getParameter("firstName");

        System.out.println(firstName);

        model.addAttribute("firstName",firstName);

        return "hello";

    }

    @RequestMapping(value = "/5")
    public String home5(HttpSession session)
    {

        session.setAttribute("aa","1234");

        session.setAttribute("bb","abcd");

        session.setAttribute("cc","defg");

        return "hello";

    }

}

DOCTYPE html>
<html  xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Titletitle>
head>
<body>
<p th:text="${session.aa}">ceship>
<p th:text="${session.bb}">ceship>
<p th:text="${session.cc}">ceship>
body>
html>

http://localhost:8080/5

springboot——从入门到实战

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