springboot整合redis集群

springboot整合redis集群

搭建redis集群

1.创建springboot项目

在springboot项目中整合redis集群有三种方式（jedis，lettuce，RedisTemplate）下面依次讲解

一、springboot整合redis（jedis）

1.修改pom.xml配置文件

        <dependency>
            <groupId>redis.clientsgroupId>
            <artifactId>jedisartifactId>
            <version>4.3.1version>
        dependency>

2.创建一个测试类

public class jedisDemo {
    public static void main(String[] args) {
        //connection 通过指定ip和端口号获取连接
        Jedis jedis = new Jedis("192.168.10.129", 6382);

        //指定访问服务器的密码
        jedis.auth("123456");

        //获得jedis客户端跟jdbc一样
        System.out.println(jedis.ping());

        //keys
        Set<String> keys = jedis.keys("*");
        System.out.println(keys);

        //string
        String set = jedis.set("k1", "v1");
        System.out.println(jedis.get("k1"));

        //list
        jedis.lpush("list","11","22","33");
        List<String> list = jedis.lrange("list", 0, -1);
        for (String s : list) {
            System.out.println(s);
        }

//        set
        jedis.sadd("orders","jd001");
        jedis.sadd("orders","jd002");
        jedis.sadd("orders","jd003");
        Set<String> orders = jedis.smembers("orders");
        for (Iterator iterator = orders.iterator(); iterator.hasNext();){
            String string = (String)iterator.next();
            System.out.println(string);
        }
        jedis.srem("orders","jd002");
        System.out.println(jedis.smembers("orders").size());

//        hash
        jedis.hset("hash1","userName","lisi");
        System.out.println(jedis.hget("hash1", "userName"));
        HashMap<String, String> map = new HashMap<>();
        map.put("telphone","123456");
        map.put("address","zhongshan");
        map.put("email","[email protected]");
        jedis.hmset("hash2",map);
        List<String> result = jedis.hmget("hash2", "telphone", "email");
        for (String element : result) {
            System.out.println(element);
        }

//        zset
        jedis.zadd("zset01",60d,"v1");
        jedis.zadd("zset01",70d,"v2");
        jedis.zadd("zset01",80d,"v3");
        jedis.zadd("zset01",90d,"v4");
        List<String> zset01 = jedis.zrange("zset01", 0, -1);
        zset01.forEach(System.out::println);


    }
}

直接运行测试

二、springboot整合redis（lettuce）

1.修改pom.xml 文件

        <dependency>
            <groupId>io.lettucegroupId>
            <artifactId>lettuce-coreartifactId>
            <version>6.2.1.RELEASEversion>
        dependency>

2.创建测试类（lettuceDemo）

public class lettuceDemo {
    public static void main(String[] args) {
        //使用构建器链式编程来builder我们redisURI
        RedisURI uri = RedisURI.builder().redis("192.168.10.129")
                .withPort(6382)
                .withAuthentication("default", "123456")
                .build();

        //创建连接客户端
        RedisClient redisClient = RedisClient.create(uri);
        StatefulRedisConnection<String, String> conn = redisClient.connect();

        //通过conn创建操作的command
        RedisCommands<String, String> commands = conn.sync();

        //===========biz==============
//        keys
        List<String> keys = commands.keys("*");
        System.out.println(keys);

//        string
        commands.set("k5","hello-lettuce");
        System.out.println(commands.get("k5"));

//        list
        commands.lpush("myList2","v1","v2","v3");
        List<String> myList2 = commands.lrange("myList2", 0, -1);
        for (String s : myList2) {
            System.out.println(s);
        }

        //set
        commands.sadd("mySet2", "v1", "v2", "v3");
        Set<String> mySet2 = commands.smembers("mySet2");
        for (String s : mySet2) {
            System.out.println(s);
        }

        //hash
        HashMap<String, String> map = new HashMap<>();
        map.put("telphone", "123456123");
        map.put("address", "zhongshan");
        map.put("email", "[email protected]");
        commands.hmset("myHash2", map);
        Map<String, String> retMap = commands.hgetall("myHash2");
        for (String k : retMap.keySet()) {
            System.out.println("k=" + k + "===============" + "v=" + retMap.get(k));
        }


//        zset
        commands.zadd("myZset2", 100.0, "s1", 200.0, "s2", 90.0, "s3");
        List<String> myZset2 = commands.zrange("myZset2", 0, 10);
        for (String s : myZset2) {
            System.out.println(s);
        }

        //sort
        SortArgs sortArgs = new SortArgs();
        sortArgs.alpha();
        sortArgs.desc();
        List<String> myList3 = commands.sort("myList3", sortArgs);
        for (String s : myList3) {
            System.out.println(s);
        }
        //===========biz==============

        //各种关闭释放资源
        conn.close();
        redisClient.shutdown();
    }
}

直接测试

三、springboot整合redis（RedisTemplate）

1.修改pom.xml

        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-webartifactId>
        dependency>
        
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-data-redisartifactId>
        dependency>
        <dependency>
            <groupId>org.apache.commonsgroupId>
            <artifactId>commons-pool2artifactId>
        dependency>
        
        <dependency>
            <groupId>io.springfoxgroupId>
            <artifactId>springfox-swagger2artifactId>
            <version>2.9.2version>
        dependency>
        <dependency>
            <groupId>io.springfoxgroupId>
            <artifactId>springfox-swagger-uiartifactId>
            <version>2.9.2version>
        dependency>

        
        <dependency>
            <groupId>junitgroupId>
            <artifactId>junitartifactId>
            <version>${junit.version}version>
        dependency>

        <dependency>
            <groupId>org.projectlombokgroupId>
            <artifactId>lombokartifactId>
            <optional>trueoptional>
        dependency>

2.修改application.properties配置文件

server.port=7777

spring.application.name=redisCluster

# ========================logging=====================
logging.level.root=info
logging.level.com.atguigu.redis7=info
logging.pattern.console=%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger- %msg%n
#产生日志的路径
logging.file.name=H:/redisCluster.log
logging.pattern.file=%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger- %msg%n

# ========================swagger=====================
spring.swagger2.enabled=true
##在springboot2.6.X结合swagger2.9.X会提示documentationPluginsBootstrapper空指针异常，
##原因是在springboot2.6.X中将SpringMVC默认路径匹配策略从AntPathMatcher更改为PathPatternParser，
## 导致出错，解决办法是matching-strategy切换回之前ant_path_matcher
spring.mvc.pathmatch.matching-strategy=ant_path_matcher

# ========================redis集群=====================
spring.redis.password=123456
# 获取失败 最大重定向次数
spring.redis.cluster.max-redirects=3
spring.redis.lettuce.pool.max-active=8
spring.redis.lettuce.pool.max-wait=-1ms
spring.redis.lettuce.pool.max-idle=8
spring.redis.lettuce.pool.min-idle=0
#支持集群拓扑动态感应刷新,自适应拓扑刷新是否使用所有可用的更新，默认false关闭
spring.redis.lettuce.cluster.refresh.adaptive=true
#定时刷新
spring.redis.lettuce.cluster.refresh.period=2000
spring.redis.cluster.nodes=192.168.10.128:6381,192.168.10.129:6382,192.168.10.130:6383,192.168.10.1:6384,192.168.10.2:6385,192.168.10.20:6386

3.创建业务类

4.编辑OrderService业务类

@Service
@Slf4j
public class OrderService {
    public static final String ORDER_KEY = "ord:";

    @Resource
    private RedisTemplate redisTemplate;

    public void addOrder() {
        int keyId = ThreadLocalRandom.current().nextInt(1000) + 1;
        String serialNo = UUID.randomUUID().toString();

        String key = ORDER_KEY + keyId;
        String value = "美团订单" + serialNo;

        redisTemplate.opsForValue().set(key,value);
        log.info("key:{}",key);
        log.info("value:{}",value);
    }

    public String getOrderById(Integer keyId){
        return String.valueOf(redisTemplate.opsForValue().get(ORDER_KEY + keyId));
    }
}

5.编辑OrderController控制类

@RestController
@Slf4j
@Api(tags = "订单接口")
public class OrderController {

    @Resource
    private OrderService orderService;

    @ApiOperation("新增订单接口")
    @RequestMapping(value = "/order/add", method = RequestMethod.POST)
    public void addOrder() {
        orderService.addOrder();
    }

    @ApiOperation("根据keyId查询订单")
    @RequestMapping(value = "/order/{keyId}", method = RequestMethod.GET)
    public String getOrderById(@PathVariable Integer keyId) {
        return orderService.getOrderById(keyId);
    }
}

6.修改Swagger配置类

@Configuration
@EnableSwagger2
public class SwaggerConfig
{
    @Value("${spring.swagger2.enabled}")
    private Boolean enabled;

    @Bean
    public Docket createRestApi() {
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .enable(enabled)
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.yang.rediscluster")) //你自己的package
                .paths(PathSelectors.any())
                .build();
    }
    public ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title("springboot利用swagger2构建api接口文档 "+"\t"+ DateTimeFormatter.ofPattern("yyyy-MM-dd").format(LocalDateTime.now()))
                .description("springboot+redis整合")
                .version("1.0")
                .build();
    }
}

7.在主启动类上加上@EnableSwagger2注解

8.访问swagger调试界面

9.使用swagger调试刚刚我们写的接口

10.在redis服务器上查看刚刚写入的数据

发现写是写成功了但是出现了乱码的问题（因为springboot默认的序列化会出现乱码，我们要的key要使用string的方式序列化，value要使用json的方式序列化）

11.在RedisConfig配置类上面配置

@Configuration
public class RedisConfig
{
    /**
     * redis序列化的工具配置类，下面这个请一定开启配置
     * 127.0.0.1:6379> keys *
     * 1) "ord:102"  序列化过
     * 2) "\xac\xed\x00\x05t\x00\aord:102"   野生，没有序列化过
     * this.redisTemplate.opsForValue(); //提供了操作string类型的所有方法
     * this.redisTemplate.opsForList(); // 提供了操作list类型的所有方法
     * this.redisTemplate.opsForSet(); //提供了操作set的所有方法
     * this.redisTemplate.opsForHash(); //提供了操作hash表的所有方法
     * this.redisTemplate.opsForZSet(); //提供了操作zset的所有方法
     * @param lettuceConnectionFactory
     * @return
     */
    @Bean
    public RedisTemplate<String, Object> redisTemplate(LettuceConnectionFactory lettuceConnectionFactory)
    {
        RedisTemplate<String,Object> redisTemplate = new RedisTemplate<>();

        redisTemplate.setConnectionFactory(lettuceConnectionFactory);
        //设置key序列化方式string
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        //设置value的序列化方式json，使用GenericJackson2JsonRedisSerializer替换默认序列化
        redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());

        redisTemplate.setHashKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashValueSerializer(new GenericJackson2JsonRedisSerializer());

        redisTemplate.afterPropertiesSet();

        return redisTemplate;
    }
}

12.再次启动主动类且在插入数据

发现key已经完成序列化