基于SpringBoot,SpringSession和redis的会话共享

安装redis

$ wget http://download.redis.io/releases/redis-4.0.1.tar.gz
$ tar xzf redis-4.0.1.tar.gz
$ cd redis-4.0.1
$ make

配置redis.conf，允许外部连接

使用IntelliJ IDEA创建Spring Boot工程，选择web, redis, session.

LoginController.java

package com.example.springsessiondemo;

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

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


@Controller
public class LoginController {

    @RequestMapping("/")
    @ResponseBody
    public String home(HttpServletRequest request, HttpServletResponse response) {
        HttpSession session = request.getSession();
        User user = (User) session.getAttribute("user");


        if (user == null){
            return "用好未登录" + session.getId();
        } else {
            return "用好已登录" + session.getId();
        }
    }

    @RequestMapping("/login")
    @ResponseBody
    public String login(HttpServletRequest request){
        User user = new User();
        user.setUsername("chf");
        user.setPassword("pass");
        request.getSession().setAttribute("user", user);

        return "登录成功 "  + request.getSession().getId();
    }
}

创建文件config.java

@Configuration
@ImportResource(locations={"classpath:spring.xml"})
public class Config {
}

配置文件application.yaml

server:
  port: 8000
spring:
  session:
    store-type: redis
  redis:
    host: 10.0.0.201
    port: 6379
    password:

配置文件spring.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

    <bean id="defaultCookieSerializer" class="org.springframework.session.web.http.DefaultCookieSerializer">
        <property name="domainName" value="example.com"/>
        <property name="cookieName" value="JSESSIONID"/>
        <property name="cookiePath" value="/" />
        <!-- <property name="domainNamePattern" value="^.+?\.(\w+\.[a-z]+)$"></property>-->
    </bean>

    <bean id="redisHttpSessionConfiguration" class="org.springframework.session.data.redis.config.annotation.web.http.RedisHttpSessionConfiguration">
        <property name="maxInactiveIntervalInSeconds" value="1800" />
        <property name="cookieSerializer" ref="defaultCookieSerializer"/>
    </bean>
</beans>

配置hosts文件

127.0.0.1 www.example.com
127.0.0.1 passport.example.com

运行程序，通过浏览器访问passport.example.com:8000

访问www.example.com:8000

JSESSIONID的内容相同，说明实现了会话共享。

接下来在passport进行登录

切换到www

一个简单的单点登录系统就实现了。

源代码工程

https://github.com/chenhaifeng2016/springsessiondemo