在微服务中，需要我们在各个微服务中共享session，使用redis来共享session是一个很好的解决方法，redis是运行在内存中，查取速度很快。
1.pom文件中添加依赖
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<dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-redis</artifactid> </dependency> <dependency> <groupid>org.springframework.session</groupid> <artifactid>spring-session-data-redis</artifactid> </dependency> |
2.使用redis的session替换spring的session
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package com.xueqing.demo.sleuthserverhi;import org.springframework.context.annotation.configuration;import org.springframework.session.data.redis.config.annotation.web.http.enableredishttpsession;/** * 添加redis配置类启用redis代码spring默认session */@configuration@enableredishttpsessionpublic class redissessionconfig {} |
3.application.properties配置文件中添加redis配置
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spring.redis.port= 6379spring.redis.host=localhost |
4.启动两个端口以一样的tomcat测试
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package com.xueqing.demo.sleuthserverhi;import java.util.logging.level;import java.util.logging.logger;import brave.sampler.sampler;import org.springframework.beans.factory.annotation.autowired;import org.springframework.boot.springapplication;import org.springframework.boot.autoconfigure.springbootapplication;import org.springframework.cloud.client.loadbalancer.loadbalanced;import org.springframework.context.annotation.bean;import org.springframework.web.bind.annotation.requestmapping;import org.springframework.web.bind.annotation.restcontroller;import org.springframework.web.client.resttemplate;import javax.servlet.http.httpservletrequest;@springbootapplication@restcontrollerpublic class sleuthserverhiapplication { public static void main(string[] args) { springapplication.run(sleuthserverhiapplication.class, args); } private static final logger log = logger.getlogger(sleuthserverhiapplication.class.getname()); @autowired private resttemplate resttemplate; @bean @loadbalanced public resttemplate getresttemplate(){ return new resttemplate(); } @requestmapping("/hi") public string callhome(httpservletrequest request){ log.log(level.info, "calling trace service-hi "); request.getsession().setattribute("hi","111"); log.log(level.warning, "加入成功"); return resttemplate.getforobject("http://localhost:8989/miya", string.class); } @requestmapping("/info") public string info(httpservletrequest request){ log.log(level.info, request.getsession().getattribute("miya")+""); log.log(level.warning, "获取成功"); return "i'm service-hi"; } @bean public sampler defaultsampler() { return sampler.always_sample; }}package com.xueqing.demo.sleuthservermiya;import brave.sampler.sampler;import org.springframework.beans.factory.annotation.autowired;import org.springframework.boot.springapplication;import org.springframework.boot.autoconfigure.springbootapplication;import org.springframework.cloud.client.loadbalancer.loadbalanced;import org.springframework.context.annotation.bean;import org.springframework.web.bind.annotation.requestmapping;import org.springframework.web.bind.annotation.restcontroller;import org.springframework.web.client.resttemplate;import javax.servlet.http.httpservletrequest;import java.util.logging.level;import java.util.logging.logger;@springbootapplication@restcontrollerpublic class sleuthservermiyaapplication { public static void main(string[] args) { springapplication.run(sleuthservermiyaapplication.class, args); } private static final logger log = logger.getlogger(sleuthservermiyaapplication.class.getname()); @requestmapping("/hi") public string home(httpservletrequest request){ log.log(level.info, "hi is being called"); request.getsession().setattribute("miya","111"); log.log(level.warning, "加入成功"); return "hi i'm miya!"; } @requestmapping("/miya") public string info(httpservletrequest request){ log.log(level.info, "info is being called"); log.log(level.info, request.getsession().getattribute("hi")+""); log.log(level.warning, "获取成功"); return resttemplate.getforobject("http://localhost:8988/info",string.class); } @autowired private resttemplate resttemplate; @bean @loadbalanced public resttemplate getresttemplate(){ return new resttemplate(); } @bean public sampler defaultsampler() { return sampler.always_sample; }} |
5.注意事项：我用的springcloud版本为f版本需要redis版本为2.8以上 如果不是2.8以上请升级，地址如下
https://github.com/microsoftarchive/redis/releases
总结
以上所述是小编给大家介绍的springcloud实现redis在各个微服务的session共享，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持！
原文链接：https://blog.csdn.net/wangxueqing52/article/details/81871389
