SpringCloud微服务实战——搭建企业级开发框架（二十）：

这章我们来介绍在系统中引入redisson-spring-boot-starter依赖来实现redis缓存管理

1、在GitEgg-Platform中新建gitegg-platform-redis用于管理工程中用到的Redis公共及通用方法。

        <!-- redisson Redis客户端-->
        <dependency>
            <groupId>org.redisson</groupId>
            <artifactId>redisson-spring-boot-starter</artifactId>
        </dependency>

2、在gitegg-platform-bom的pom.xml文件中添加gitegg-platform-redis

            <!-- gitegg cache自定义扩展 -->
            <dependency>
                <groupId>com.gitegg.platform</groupId>
                <artifactId>gitegg-platform-redis</artifactId>
                <version>${gitegg.project.version}</version>
            </dependency>

3、GitEgg-Platform重新install，在GitEgg-Cloud子工程gitegg-service-system代码SystemController.java中添加设置和获取缓存的测试方法

    private final RedissonClient redisson;

    private final RedisTemplate<String, String> template;

    @ApiOperation(value = "缓存测试设置值")
    @GetMapping(value = "redis/set")
    public Result redisSet(@RequestParam("id") String id) {
        RMap<String, String> m = redisson.getMap("test", StringCodec.INSTANCE);
        m.put("1", id);
        return Result.success("设置成功");
    }

    @ApiOperation(value = "缓存测试获取值")
    @GetMapping(value = "redis/get")
    public Result redisGet() {
        BoundHashOperations<String, String, String> hash = template.boundHashOps("test");
        String t = hash.get("1");
        return Result.success(t);
    }

4、gitegg-service-system中的GitEggSystemApplication.java添加@EnableCaching注解

package com.gitegg.service.system;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.context.annotation.ComponentScan;

/**
 * gitegg-system 启动类
 */
@EnableDiscoveryClient
@ComponentScan(basePackages = "com.gitegg")
@MapperScan("com.gitegg.*.*.mapper")
@SpringBootApplication
@EnableCaching
public class GitEggSystemApplication {

    public static void main(String[] args) {
        SpringApplication.run(GitEggSystemApplication.class,args);
    }

}

5、在Nacos配置文件中添加redis的相关配置，这里使用单机版redis，其他模式配置请参考官方文档

spring:
  redis:
    database: 1
    host: 127.0.0.1
    port: 6379
    password: root
    ssl: false
    timeout: 2000
  redisson: 
    config: |
      singleServerConfig:
        idleConnectionTimeout: 10000
        connectTimeout: 10000
        timeout: 3000
        retryAttempts: 3
        retryInterval: 1500
        password: root
        subscriptionsPerConnection: 5
        clientName: null
        address: "redis://127.0.0.1:6379"
        subscriptionConnectionMinimumIdleSize: 1
        subscriptionConnectionPoolSize: 50
        connectionMinimumIdleSize: 32
        connectionPoolSize: 64
        database: 0
        dnsMonitoringInterval: 5000
      threads: 0
      nettyThreads: 0
      codec: !<org.redisson.codec.JsonJacksonCodec> {}
      "transportMode":"NIO"

6、启动项目，使用swagger进行测试

image.png
image.png

通过以上设置的值和获取的结果可知，我们配置的缓存已生效。

本章源码在https://gitee.com/wmz1930/gitegg-cloud 和 https://gitee.com/wmz1930/gitegg-platform 的chapter-20分支。