SpringBoot结合Redis哨兵模式的实现示例

cp redis.conf /home/redis/redis6379.conf
cp redis.conf /home/redis/redis6380.conf
cp redis.conf /home/redis/redis6381.conf

vim redis6379.conf
#启用后台启动
daemonize yes
#pidfile位置
pidfile "/home/redis/6379/redis6379.pid"
#端口
port 6379
#日志文件位置
logfile "/home/redis/6379/log6379.log"
#rdb备份文件名称
dbfilename "dump6379.rdb"
#rdb备份文件路径
dir "/home/redis/rdb/"

slaveof 192.168.126.200 6379

master节点服务
./redis-cli -p 6379
127.0.0.1:6379> info replication
# Replication
role:master
connected_slaves:2
slave0:ip=192.168.126.200,port=6380,state=online,offset=975350,lag=1
slave1:ip=192.168.126.200,port=6381,state=online,offset=975350,lag=1
master_repl_offset:975495
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:2
repl_backlog_histlen:975494

slave节点服务
./redis-cli -p 6380
# Replication
role:slave
master_host:192.168.126.200
master_port:6379
master_link_status:up
master_last_io_seconds_ago:0
master_sync_in_progress:0
slave_repl_offset:989499
slave_priority:100
slave_read_only:1
connected_slaves:0
master_repl_offset:0
repl_backlog_active:0
repl_backlog_size:1048576
repl_backlog_first_byte_offset:0
repl_backlog_histlen:0

touch sentinel1.conf

vim sentinel1.conf
#Sentinel节点的端口
port 26379
dir "/home/redis/sentinel"
daemonize yes
logfile "sentinel-26379.log"

#当前Sentinel节点监控 127.0.0.1:6379 这个主节点
#代表判断主节点失败至少需要2个Sentinel节点节点同意
#mymaster是主节点的别名
sentinel monitor mymaster 192.168.126.200 6380 2

#每个Sentinel节点都要定期PING命令来判断Redis数据节点和其余Sentinel节点是否可达，如果超过30000毫秒且没有回复，则判定不可达
sentinel down-after-milliseconds mymaster 30000

#当Sentinel节点集合对主节点故障判定达成一致时，Sentinel领导者节点会做故障转移操作，选出新的主节点，原来的从节点会向新的主节点发起复制操作，限制每次向>新的主节点发起复制操作的从节点个数为1
sentinel leader-epoch mymaster 1

#故障转移超时时间为180000毫秒
sentinel failover-timeout mymaster 180000

#同理创建修改sentinel2.conf、sentinel3.conf配置文件

./redis-sentinel /home/redis/sentinel1.conf
./redis-sentinel /home/redis/sentinel2.conf
./redis-sentinel /home/redis/sentinel3.conf

<dependency>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-test</artifactId>
</dependency>
<dependency>
 <groupId>org.projectlombok</groupId>
 <artifactId>lombok</artifactId>
</dependency>
<!--redis连接池-->
<dependency>
 <groupId>org.apache.commons</groupId>
 <artifactId>commons-pool2</artifactId>
</dependency>

server:
 port: 80

spring:
 redis:
 lettuce:
  pool:
  # 连接池最大连接数(使用负值表示没有限制) 默认为8
  max-active: 8
  # 连接池中的最大空闲连接 默认为8
  max-idle: 8
  # 连接池最大阻塞等待时间(使用负值表示没有限制) 默认为-1
  max-wait: -1ms
  # 连接池中的最小空闲连接 默认为 0
  min-idle: 0
 sentinel:
  # 主节点的别名
  master: mymaster
  # sentinel服务的ip和端口
  nodes: 192.168.126.200:26379,192.168.126.200:26380,192.168.126.200:26381

@RestController
@RequestMapping("/redis")
public class RedisController {

 // 使用SpringBoot封装的RestTemplate对象
 @Autowired
 RedisTemplate<String, String> redisTemplate;

 @RequestMapping("/get")
 public String get(String key) {
  String value = redisTemplate.opsForValue().get(key);
  return value;
 }

 @RequestMapping("/set")
 public String set(String key, String value) {
  redisTemplate.opsForValue().set(key, value);
  return "success";
 }
}