springboot集成spring session实现session共享

首先pom.xml引入依赖

    org.springframework.boot
    spring-boot-starter-data-redis


    org.springframework.session
    spring-session-data-redis

控制器里写方法：

@RestController
@RequestMapping(value = "/api/user")
public class LoginController {
    @RequestMapping(value = "/showPort")
    public String showPort (HttpServletRequest request) {
        return request.getLocalPort() + "";
    }

    @RequestMapping(value = "/saveSession")
    public String saveSession (HttpServletRequest request) {
        request.getSession().setAttribute("userName", "admin");
        return request.getLocalPort() + "—" + request.getSession().getId();
    }

    @RequestMapping(value = "/getSession")
    public String getSession (HttpServletRequest request) {
        String userName = (String) request.getSession().getAttribute("userName");
        return request.getLocalPort() + "userName：" + userName;
    }
}

然后把项目复制出来一份，改个名，修改application.properties配置，两个不同端口

server.port=9999
server.port=9998

配置nginx负载均衡，启动nginx

upstream transformers {
    server 127.0.0.1:9999;
    server 127.0.0.1:9998;
}
	
server {
    listen       80;
    server_name  localhost;
    location / {
        proxy_pass http://transformers;
    }
}

然后是很关键的一步：启动你的两个项目，看下运行效果

用9998端口存session，9999端口获取session

GameOver~bingo