SpringBoot 实现Session共享

HttpSession，是通过Servlet容器创建并进行管理的，创建成功以后将会保存在内存中，这里将会使用Redis解决session共享的问题。

创建项目

添加pom

添加相关的maven

    4.0.0
    
        org.springframework.boot
        spring-boot-starter-parent
        2.3.1.RELEASE
         
    
    com.example
    demo
    0.0.1-SNAPSHOT
    demo
    Demo project for Spring Boot

    
        1.8
    

    
        
        
            org.springframework.boot
            spring-boot-starter-data-redis
            2.3.1.RELEASE
        
        
        
            io.lettuce
            lettuce-core
            6.0.0.M1
        
        
        
            redis.clients
            jedis
            3.3.0
        
        
        
            org.springframework.session
            spring-session-data-redis
            2.3.0.RELEASE
        
        
            org.springframework.boot
            spring-boot-starter-web
        

        
            org.springframework.boot
            spring-boot-starter-test
            test
            
                
                    org.junit.vintage
                    junit-vintage-engine
                
            
        
    

    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
            
        
    

配置redis连接

配置redis连接

spring:
  redis:
    database: 0
    host: 106.53.115.12
    port: 6379
    password: 12345678
    jedis:
      pool:
        max-active: 8
        max-idle: 8
        max-wait: -1ms
        min-idle: 0

创建Controller用来执行测试操作

package com.example.demo;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpSession;

@RestController
public class HelloController {
    @PostMapping("/save")
    public String saveName(String name, HttpSession session){
        session.setAttribute("name", name);
        return "8080";
    }
    
    @GetMapping("/get")
    public String getName(HttpSession httpSession){
        return httpSession.getAttribute("name").toString();
    }
}

Nginx 负载均衡

mingming@xiaoming-pc:~$ sudo apt-get install nginx

修改配置文件

upstream sang.com {
        server 192.168.0.1:8080 weight = 1;
        server 192.168.0.2:8080 weight = 1;
}


server {
        listen  80;
        server_name localhost;
        location / {
                proxy_pass http://sang.com;
                proxy_redirect default;
        }

}

请求分发

保存数据

获取数据

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