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springboot整合redis

网友: 文章列表 2024-03-21 23:08:33

springboot整合redis

一、总体概述

1、redis配置文件

springboot整合redis

redis.conf配置文件，改完后确保生效，记得重启，记得重启

  • 默认daemonize no 改为 daemonize yes

  • 默认protected-mode yes 改为 protected-mode no

  • 默认bind 127.0.0.1 改为 直接注释掉(默认bind 127.0.0.1只能本机访问)或改成本机IP地址，否则影响远程IP连接

  • 添加redis密码 改为 requirepass 你自己设置的密码

2、设置防火墙

启动： systemctl start firewalld
关闭： systemctl stop firewalld
查看状态： systemctl status firewalld 
开机禁用  ： systemctl disable firewalld
开机启用  ： systemctl enable firewalld    
添加 ：firewall-cmd --zone=public --add-port=80/tcp --permanent    （--permanent永久生效，没有此参数重启后失效）
重新载入： firewall-cmd --reload
查看： firewall-cmd --zone= public --query-port=80/tcp
删除： firewall-cmd --zone= public --remove-port=80/tcp --permanent

3、jedis(一般不用，了解即可）

public class JedisDemo
{public static void main(String[] args){//1 connection获得，通过指定ip和端口号Jedis jedis = new Jedis("192.168.159.130", 6379);//2 指定访问服务器的密码jedis.auth("yjy219912ym");//3 获得了jedis客户端，可以像jdbc一样，访问我们的redisSystem.out.println(jedis.ping());//keysSet<String> keys = jedis.keys("*");System.out.println(keys);//stringjedis.set("k3","hello-jedis");System.out.println(jedis.get("k3"));System.out.println(jedis.ttl("k3"));jedis.expire("k3",20L);//listjedis.lpush("list","11","12","13");List<String> list = jedis.lrange("list", 0, -1);for (String element : list) {System.out.println(element);}// hashjedis.hset("hset1","k1","v1");Map<String,String> hash = new HashMap<>();hash.put("k1","1");hash.put("k2","2");hash.put("k3","3");jedis.hmset("hset2",hash);System.out.println(jedis.hmget("hset2","k1","k3","k2"));System.out.println(jedis.hget("hset1", "k1"));System.out.println(jedis.hexists("hset2","k2"));System.out.println(jedis.hkeys("hset2"));// setjedis.sadd("set1","1","2","3");jedis.sadd("set2","4");System.out.println(jedis.smembers("set1"));System.out.println(jedis.scard("set1"));System.out.println(jedis.spop("set1"));jedis.smove("set1","set2","1");System.out.println(jedis.smembers("set1"));System.out.println(jedis.smembers("set2"));System.out.println(jedis.sinter("set1", "set2"));  // 交集System.out.println(jedis.sunion("set1","set2"));   // 并集// zsetjedis.zadd("zset1",100,"v1");jedis.zadd("zset1",80,"v2");jedis.zadd("zset1",60,"v3");List<String> zset1 = jedis.zrange("zset1", 0, -1);for (String s : zset1) {System.out.println(s);}List<String> zset11 = jedis.zrevrange("zset1", 0, -1);for (String s : zset11) {System.out.println(s);}}
}

4、lettuce(了解）

springboot整合redis


```dart
public class LettuceDemo
{public static void main(String[] args){// 1 使用构建器链式编程来builder我们RedisURIRedisURI uri = RedisURI.builder().redis("192.168.159.130").withPort(6379).withAuthentication("default","yjy219912ym").build();//2 创建连接客户端RedisClient redisClient = RedisClient.create(uri);StatefulRedisConnection conn = redisClient.connect();//3 通过conn创建操作的commandRedisCommands commands = conn.sync();//========biz====================//keysList keys = commands.keys("*");System.out.println("***********"+keys);//stringcommands.set("k5","hello-lettuce");System.out.println("***********"+commands.get("k5"));// listcommands.lpush("list01","1","2","3");List<String> list01 = commands.lrange("list01", 0, -1);for (String s : list01) {System.out.println("================"+s);}System.out.println("===================="+ commands.rpop("list01", 2));// hashcommands.hset("hash","k1","v1");commands.hset("hash","k2","v2");commands.hset("hash","k3","v3");System.out.println("======================="+commands.hgetall("hash"));Boolean hexists = commands.hexists("hash", "v2");System.out.println("------"+hexists);// setcommands.sadd("s1","1","2");System.out.println("=================================" + commands.smembers("s1"));System.out.println(commands.sismember("s1", "1"));System.out.println(commands.scard("s1"));// zsetcommands.zadd("a1",100,"v1");commands.zadd("a1",80,"v2");System.out.println(commands.zrange("a1", 0, -1));System.out.println("======================"+commands.zcount("a1", "90", "100"));//4 各种关闭释放资源conn.close();redisClient.shutdown();}
}

5、RedisTemplate(推荐使用）

配置

spring.redis.database=0
spring.redis.host=192.168.159.130
spring.redis.port=6379
spring.redis.password=yjy219912ym
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

service

@Service
@Slf4j
public class OrderService
{public static final String ORDER_KEY = "ord:";@Resource private RedisTemplate redisTemplate;//@Resource private StringRedisTemplate StringRedisTemplate;public void addOrder(){int keyId = ThreadLocalRandom.current().nextInt(1000)+1;String serialNo = UUID.randomUUID().toString();String key = ORDER_KEY+keyId;String value = "京东订单"+serialNo;redisTemplate.opsForValue().set(key,value);log.info("***key:{}",key);log.info("***value:{}",value);}public String getOrderById(Integer keyId){return (String) redisTemplate.opsForValue().get(ORDER_KEY + keyId);//return StringRedisTemplate.opsForValue().get(ORDER_KEY + keyId);}}

controller

@RestController
@Slf4j
@Api(tags = "订单接口")
public class OrderController
{@Resourceprivate OrderService orderService;@ApiOperation("新增订单")@RequestMapping(value = "/order/add",method = RequestMethod.POST)public void addOrder(){orderService.addOrder();}@ApiOperation("按照keyIdc查询订单")@RequestMapping(value = "/order/{keyId}",method = RequestMethod.GET)public String getOrderById(@PathVariable Integer keyId){return orderService.getOrderById(keyId);}
}

序列化问题
springboot整合redis
方法一：用StringRedisTemplate,redis客户端查看value的时候加上–raw
方法二：写redisconfig

@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*/@Beanpublic RedisTemplate<String, Object> redisTemplate(LettuceConnectionFactory lettuceConnectionFactory){RedisTemplate<String,Object> redisTemplate = new RedisTemplate<>();redisTemplate.setConnectionFactory(lettuceConnectionFactory);//设置key序列化方式stringredisTemplate.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;}
}

6、集群

配置

spring.redis.password=111111
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
spring.redis.lettuce.cluster.refresh.adaptive=true
spring.redis.lettuce.cluster.refresh.period=2000
spring.redis.cluster.nodes=192.168.111.185:6381,192.168.111.185:6382,192.168.111.172:6383,192.168.111.172:6384,192.168.111.184:6385,192.168.111.184:6386

springboot整合redis
问题：要是有一台主机比如6381宕机了，redis那边工作还是正常，但是java这边的工作出现了问题
springboot整合redis
springboot整合redis
springboot整合redis
原因：
springboot整合redis

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