spring boot2.0.5 + dubbo + redis+ spring-session session共享 由cookie.path 导致的共享失败问题-解决方案

首先列出正确的配置 ，最后是错误的原因

环境

     spring boot 2.0.5.RELEASE

 依赖

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

代码配置

@EnableRedisHttpSession(maxInactiveIntervalInSeconds= 7200)
public class SessionConfig {
}

application.yml 配置

web1

server:
  port: 8082
  servlet:
    context-path: /dims-rbac-web
    session:
      cookie:
        path: /
spring:
  jackson:
    date-format: yyyy-MM-dd HH:mm:ss
    time-zone: GMT+8
  application:
    name: dims-rbac-web
  redis:
    host: localhost
    port: 6379
  session:
    store-type: redis
    redis:
      flush-mode: on_save
      namespace: spring:session
dubbo:
  application:
    name: dims-rbac-web
  protocol:
    name: dubbo
    port: 20880
  registry:
    address: zookeeper://localhost:2881
    timeout: 1000

web2

server:
  port: 8083
  servlet:
    context-path: /dims-crm-web
    session:
      cookie:
        path: /
spring:
  jackson:
    date-format: yyyy-MM-dd HH:mm:ss
    time-zone: GMT+8
  application:
    name: dims-crm-web
  redis:
    host: localhost
    port: 6379
  session:
    store-type: redis
    redis:
      flush-mode: on_save
      namespace: spring:session
dubbo:
  application:
    name: dims-crm-web
  protocol:
    name: dubbo
    port: 20880
  registry:
    address: zookeeper://localhost:2881
    timeout: 1000

 启动类注解 web1

@EnableDubbo
@SpringBootApplication
public class DimsRbacWebApp {
    public static void main(String[] args){
        SpringApplication.run(DimsRbacWebApp.class, args);
    }
}

启动类注解web2

@EnableDubbo
@SpringBootApplication
public class DimsCrmWebApp {
    public static void main(String[] args){
        SpringApplication.run(DimsCrmWebApp.class, args);
    }
}

上面是正确的配置，

但是 如果在配置了 context-path 不是默认的/ 的情况下  cookie的path默认和context-path一致，就会导致cookie的作用域不一致导致无法共享，此时就必须加上 cookie的path为/