服务器之家

服务器之家 > 正文

SpringCloud实现Redis在各个微服务的Session共享问题

时间:2021-05-27 12:55     来源/作者:别等时光染了梦想

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

?
1
2
3
4
5
6
7
8
<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

?
1
2
3
4
5
6
7
8
9
10
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
@enableredishttpsession
public class redissessionconfig {
}

3.application.properties配置文件中添加redis配置

?
1
2
spring.redis.port= 6379
spring.redis.host=localhost

4.启动两个端口以一样的tomcat测试

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
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
@restcontroller
public 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
@restcontroller
public 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

相关文章

热门资讯

2020微信伤感网名听哭了 让对方看到心疼的伤感网名大全
2020微信伤感网名听哭了 让对方看到心疼的伤感网名大全 2019-12-26
yue是什么意思 网络流行语yue了是什么梗
yue是什么意思 网络流行语yue了是什么梗 2020-10-11
背刺什么意思 网络词语背刺是什么梗
背刺什么意思 网络词语背刺是什么梗 2020-05-22
苹果12mini价格表官网报价 iPhone12mini全版本价格汇总
苹果12mini价格表官网报价 iPhone12mini全版本价格汇总 2020-11-13
2021德云社封箱演出完整版 2021年德云社封箱演出在线看
2021德云社封箱演出完整版 2021年德云社封箱演出在线看 2021-03-15
返回顶部