一：需要监听过期的redis keys
在redis.conf 里添加 notify-keyspace-events "Ex" ，放到配置参数的最后。
二：不需要账号密码访问
改变redis.conf 里的protected-mode 的属性值为 no
三：去掉绑定的地址
在redis.conf 里注销掉 bind 127.0.0.1
./redis-service ../redis.conf &
客户端执行redis 命令。
psubscribe __keyevent@*__:expired
pubsub配置：
@Configuration
@Import( value = ServiceApplication.class )
public class PubsubConfiguration {
/* @Autowired
private RedisClient redisClient;*/
@Bean
MessageListenerAdapter messageListener() {
return new MessageListenerAdapter( new RedisMessageListener() );
}
@Autowired
@Bean
public RedisMessageListenerContainer container(RedisConnectionFactory connectionFactory ) {
final RedisMessageListenerContainer container =
new RedisMessageListenerContainer();
container.setConnectionFactory( connectionFactory );
container.addMessageListener( messageListener(), new ChannelTopic( "__keyevent@0__:expired" ) );
return container;
}
/* @Bean
public MessageListener listener() {
return new RedisMessageListener();
}*/
}
springboot 启动类
@SpringBootApplication
@ComponentScan
public class ServiceApplication implements CommandLineRunner {
private static Logger logger = LoggerFactory.getLogger(ServiceApplication.class);
@Override
public void run(String... strings) throws Exception {
}
public static void main(String[] args) throws Exception {
ApplicationContext ctx = SpringApplication.run(ServiceApplication.class, args);
SpringContextUtil.setApplicationContext(ctx);
logger.info("service start success .....");
}
}
监听类实现：
public class RedisMessageListener implements MessageListener {
protected Logger logger = LoggerFactory.getLogger(RedisMessageListener.class);
@Autowired
private BookTableBo bookTableBo;
@Autowired
private CalledRecordBo calledRecordBo;
@Autowired
private MqService mqService;
@Override
public void onMessage(Message message, byte[] pattern) {
String key = message.toString();
try {
System.out.println( "Message received: " + message.toString() );
logger.info( "Message received: " + message.toString() );
if(StringUtils.isNotBlank(key) && key.startsWith(RedisUtils.TABLE_PREFIX)){
String[] tKey = key.split("_");
if(tKey.length==7){
String traceID = UUID.randomUUID().toString();
Integer groupID = Integer.parseInt(tKey[2]);
Integer shopID = Integer.parseInt(tKey[3]);
long mealDate = Long.parseLong(tKey[4]);
Integer mealTimeTypeID = Integer.parseInt(tKey[5]);
Integer tableID = Integer.parseInt(tKey[6]);
String redisKey = new StringBuilder()
.append(groupID)
.append("_")
.append(shopID)
.append("_")
.append(mealDate)
.append("_")
.append(mealTimeTypeID)
.toString();
if(null == bookTableBo){
bookTableBo =(BookTableBo) SpringContextUtil.getBean("bookTableBo");
}
if(null == mqService){
mqService =(MqService) SpringContextUtil.getBean("mqService");
}
DataSourceContextHolder.setDataSourceType(Constants.DB_ROUTEKEY_PREFIX_READ + groupID);
List<Integer> userableUnLockTables = bookTableBo.userableUnLockTable(groupID,
shopID,
tableID,
traceID,
redisKey,
mealDate,
mealTimeTypeID);
List<MealTimeTableStatusMqVO> mealTimeTableStatusMqBeans = new ArrayList<>();
for (Integer one:userableUnLockTables){
mealTimeTableStatusMqBeans.add(MqUtils.buildMealTimeTableStatusMqBean(one, OrderStatusEnum.FREE.getStatus(),0L,0L,0,"",0,"",0));
}
mqService.sendMessToShop(shopID, MqUtils.buildUnTakeUpTableMq(traceID,mealDate,mealTimeTypeID,mealTimeTableStatusMqBeans));
mqService.sendTableStatusChangeMq(groupID,shopID,mealDate,mealTimeTypeID,userableUnLockTables,null);
}
}
}catch (Exception e){
logger.error("handler expire key error"+key,e);
}
}
}