SpringBoot中使用Session共享实现分布式部署的示例代码

<!-- redis的依赖 -->
<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<!-- web的依赖 -->
<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- session共享的依赖 -->
<dependency>
  <groupId>org.springframework.session</groupId>
  <artifactId>spring-session-data-redis</artifactId>
</dependency>

server:
 port: 8080

spring:
 redis:
  host: 127.0.0.1
  port: 6379
  database: 0
  password:

package com.zyxx.session.controller;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpSession;

@RestController
public class DemoController {

  /**
   * 获取项目端口
   */
  @Value("${server.port}")
  private String port;

  /**
   * 将信息存放在session中
   */
  @GetMapping("set")
  public String set(HttpSession session) {
    session.setAttribute("user", "hello world~~~");
    return port;
  }

  /**
   * 从session中获取信息
   */
  @GetMapping("get")
  public String get(HttpSession session) {
    return session.getAttribute("user") + " : " + port;
  }
}

java -jar .\session-0.0.1-SNAPSHOT.jar --server.port=8080
java -jar .\session-0.0.1-SNAPSHOT.jar --server.port=8081

upstream helloworld{
	server 127.0.0.1:8080 weight=1;
	server 127.0.0.1:8081 weight=2;
}

location / {
	proxy_pass http://helloworld;
  #root  html;
  #index index.html index.htm;
}

nginx -s reload