java 分布式会话_spring-session实现分布式集群session的共享
title: spring-session实现分布式集群session的共享
tags: springboot,spring,session共享
grammar_cjkRuby: true
**本文使用springboot实现session共享，基于spring session实现
想使用基于容器的session共享请搜索其他文章
本文不讲解基础环境搭建，需要使用idea、maven、springboot等相关知识点，不做介绍
未做session共享
整体项目结构
基础代码：
pom.xml
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
com.xiang.springboot.demo
springboot-demo
0.0.1-SNAPSHOT
jar
springboot-demo
Demo project for Spring Boot
org.springframework.boot
spring-boot-starter-parent
2.0.2.RELEASE
UTF-8
UTF-8
1.8
org.springframework.boot
spring-boot-starter-thymeleaf
org.springframework.boot
spring-boot-starter-web
org.projectlombok
lombok
true
org.springframework.boot
spring-boot-starter-test
test
org.springframework.boot
spring-boot-maven-plugin
SpringbootDemoApplication.java
package com.xiang.springboot.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.context.ServletContextAware;
import javax.servlet.ServletContext;
@SpringBootApplication
public class SpringbootDemoApplication implements ServletContextAware {
public static void main(String[] args) {
SpringApplication.run(SpringbootDemoApplication.class, args);
}
@Override
public void setServletContext(ServletContext context) {
String ctx = context.getContextPath();
System.out.println("ctx=" + ctx);
context.setAttribute("ctx", ctx);
}
}
TestController.java
package com.xiang.springboot.demo.module1.controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
@Controller
@RequestMapping("/module1")
public class TestController {
@GetMapping("/page1")
public String page1(HttpServletRequest request, HttpServletResponse response, RedirectAttributes attr, ModelMap map) {
System.out.println(attr.getFlashAttributes().get("test"));
System.out.println("aaaaaaaaaaaaaa" + map.get("test"));
HttpSession session = request.getSession();
session.setAttribute("sessiontest","session test text...."+session.getId());
String url = request.getScheme()+":111//"+request.getServerName()+":"+request.getServerPort()+"-"+request.getLocalPort()+"/"+request.getContextPath()+"/"+request.getRequestURI();
session.setAttribute("ctpath",url);
return "module1/page1";
}
@GetMapping("/page2")
public String page2(HttpServletRequest request, HttpServletResponse response, RedirectAttributes attr) {
attr.addFlashAttribute("test", "testaaaaa");
return "redirect:/module1/page1";
}
}
page1.html
Spring MVC + Thymeleaf ExampleHello,
ContextPath,
!
Hello,
!
session,
!
submit
未做session共享之前的结果
session共享
项目结构
整体项目结构与原来保持一致
pom.xml
原pom.xml中加入
org.springframework.boot
spring-boot-starter-redis
1.3.8.RELEASE
org.springframework.session
spring-session-data-redis
application.yml
将原来的application.properties改名了
加入：
spring:
redis:
database: 0
host: ***
port: 6379
password: ***
timeout: 0
pool:
max-active: 8
max-wait: -1
max-idle: 8
min-idle: 0
session:
store-type: none
加入新文件RedisHttpSessionConfig.java
package com.xiang.springboot.demo.module1.config;
import org.springframework.context.annotation.Configuration;
import org.springframework.session.data.redis.config.annotation.web.http.EnableRedisHttpSession;
@Configuration
//maxInactiveIntervalInSeconds 默认是1800秒过期，这里测试修改为60秒
@EnableRedisHttpSession(maxInactiveIntervalInSeconds=60)
public class RedisHttpSessionConfig{
}
其他不用变
最终结果
---------------2018.06.20 更新-----------------------------------------------
使用spring session之后原httpsessionListener的创建和销毁session的监听器会失效
处理方法：https://docs.spring.io/spring...
代码如下：
@Configuration
//maxInactiveIntervalInSeconds 默认是1800秒过期，这里测试修改为60秒
@EnableRedisHttpSession(maxInactiveIntervalInSeconds=180)
public class RedisHttpSessionConfig{
@Bean
public SessionEventHttpSessionListenerAdapter getSessionEventHttpSessionListenerAdapter(){
List listeners = new ArrayList<>();
listeners.add(getHttpSessionListener());
return new SessionEventHttpSessionListenerAdapter(listeners);
}
@Bean
public HttpSessionListener getHttpSessionListener(){
return new MyHttpSessionListener();
}
}
---------------2018.06.20 更新end-----------------------------------------------
参考：