时间:2022-12-14 10:29:04 | 栏目:JAVA代码 | 点击:次
本文假使你了解spring boot并实践过,非spring boot用户可跳过也可借此研究一下。
redisson是redis的java客户端程序,国内外很多公司都有在用,如下,
和spring的集成中官方给出的实例也是比较多,比较方便。
<!--kl add redis client--> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>2.9.0</version> </dependency> <!-- https://mvnrepository.com/artifact/commons-pool/commons-pool --> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-pool2</artifactId> <version>2.2</version> </dependency>
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <!-- POOL配置 --> <bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig"> <property name="maxTotal" value="300"/> <property name="maxIdle" value="10"/> <property name="maxWaitMillis" value="1000"/> <property name="testOnBorrow" value="true"/> </bean> <!-- jedis shard信息配置 --> <bean id="jedisShardInfo" class="redis.clients.jedis.JedisShardInfo"> <constructor-arg index="0" value="${redis.host}"/> <constructor-arg index="1" value="${redis.port}" type="int"/> </bean> <!-- jedis shard pool配置 --> <bean id="shardedJedisPool" class="redis.clients.jedis.ShardedJedisPool"> <constructor-arg index="0" ref="jedisPoolConfig"/> <constructor-arg index="1"> <list> <ref bean="jedisShardInfo"/> </list> </constructor-arg> </bean> <bean id="shardedJedis" factory-bean="shardedJedisPool" factory-method="getResource" /> </beans>
<!--kl add redis client--> <dependency> <groupId>org.redisson</groupId> <artifactId>redisson</artifactId> <version>2.5.0</version> </dependency>
/** * Created by kl on 2016/10/21. */ @Configuration @ComponentScan public class RedsissonConfig { @Bean(destroyMethod="shutdown") RedissonClient redisson(@Value("classpath:/conf/redisson.yaml") Resource configFile) throws IOException { Config config = Config.fromYAML(configFile.getInputStream()); return Redisson.create(config); } }
spring集成redis客户端jedis以及redisson,可以提供yaml,json配置文件来实例化redissonClient,也可以使用spring的xml来配置,redisson官方给出了诸如<redisson:client>等标签来简化在xml中的配置,但是如果我们的程序是spring boot,一般都是使用application.properties来配置我们应用配置参数,不想提供额外的yaml,json,xml等配置文件,虽然spring boot也支持这么做。所以如何使用application.properties的方式配置redisson呢,请看下文?
/** * Created by kl on 2017/09/26. * redisson 客户端配置 */ @ConfigurationProperties(prefix = "spring.redisson") @Configuration public class RedissonConfig{ private String address; private int connectionMinimumIdleSize = 10; private int idleConnectionTimeout=10000; private int pingTimeout=1000; private int connectTimeout=10000; private int timeout=3000; private int retryAttempts=3; private int retryInterval=1500; private int reconnectionTimeout=3000; private int failedAttempts=3; private String password = null; private int subscriptionsPerConnection=5; private String clientName=null; private int subscriptionConnectionMinimumIdleSize = 1; private int subscriptionConnectionPoolSize = 50; private int connectionPoolSize = 64; private int database = 0; private boolean dnsMonitoring = false; private int dnsMonitoringInterval = 5000; private int thread; //当前处理核数量 * 2 private String codec="org.redisson.codec.JsonJacksonCodec"; @Bean(destroyMethod = "shutdown") RedissonClient redisson() throws Exception { Config config = new Config(); config.useSingleServer().setAddress(address) .setConnectionMinimumIdleSize(connectionMinimumIdleSize) .setConnectionPoolSize(connectionPoolSize) .setDatabase(database) .setDnsMonitoring(dnsMonitoring) .setDnsMonitoringInterval(dnsMonitoringInterval) .setSubscriptionConnectionMinimumIdleSize(subscriptionConnectionMinimumIdleSize) .setSubscriptionConnectionPoolSize(subscriptionConnectionPoolSize) .setSubscriptionsPerConnection(subscriptionsPerConnection) .setClientName(clientName) .setFailedAttempts(failedAttempts) .setRetryAttempts(retryAttempts) .setRetryInterval(retryInterval) .setReconnectionTimeout(reconnectionTimeout) .setTimeout(timeout) .setConnectTimeout(connectTimeout) .setIdleConnectionTimeout(idleConnectionTimeout) .setPingTimeout(pingTimeout) .setPassword(password); Codec codec=(Codec)ClassUtils.forName(getCodec(),ClassUtils.getDefaultClassLoader()).newInstance(); config.setCodec(codec); config.setThreads(thread); config.setEventLoopGroup(new NioEventLoopGroup()); config.setUseLinuxNativeEpoll(false); return Redisson.create(config); }
注意:以上代码不是完整的,省略了get set代码
#redis链接地址 spring.redisson.address=192.168.1.204:6379 #当前处理核数量 * 2 spring.redisson.thread=4 #指定编解码 spring.redisson.codec=org.redisson.codec.JsonJacksonCodec; #最小空闲连接数,默认值:10,最小保持连接数(长连接) spring.redisson.connectionMinimumIdleSize=12 #连接空闲超时,单位:毫秒 默认10000;当前连接池里的连接数量超过了最小空闲连接数, #而连接空闲时间超过了该数值,这些连接将会自动被关闭,并从连接池里去掉 spring.redisson.idleConnectionTimeout=10000 #ping节点超时,单位:毫秒,默认1000 spring.redisson.pingTimeout=1000 #连接等待超时,单位:毫秒,默认10000 spring.redisson.connectTimeout=10000 #命令等待超时,单位:毫秒,默认3000;等待节点回复命令的时间。该时间从命令发送成功时开始计时 spring.redisson.timeout=3000 #命令失败重试次数,默认值:3 spring.redisson.retryAttempts=2 #命令重试发送时间间隔,单位:毫秒,默认值:1500 spring.redisson.retryInterval=1500 #重新连接时间间隔,单位:毫秒,默认值:3000;连接断开时,等待与其重新建立连接的时间间隔 spring.redisson.reconnectionTimeout=3000 #执行失败最大次数, 默认值:3;失败后直到 reconnectionTimeout超时以后再次尝试。 spring.redisson.failedAttempts=2 #身份验证密码 #spring.redisson.password= #单个连接最大订阅数量,默认值:5 spring.redisson.subscriptionsPerConnection=5 #客户端名称 #spring.redisson.clientName= #发布和订阅连接的最小空闲连接数,默认值:1;Redisson内部经常通过发布和订阅来实现许多功能。 #长期保持一定数量的发布订阅连接是必须的 spring.redisson.subscriptionConnectionMinimumIdleSize=1 #发布和订阅连接池大小,默认值:50 spring.redisson.subscriptionConnectionPoolSize=50 #连接池最大容量。默认值:64;连接池的连接数量自动弹性伸缩 spring.redisson.connectionPoolSize=64 #数据库编号,默认值:0 spring.redisson.database=0 #是否启用DNS监测,默认值:false spring.redisson.dnsMonitoring=false #DNS监测时间间隔,单位:毫秒,默认值:5000 spring.redisson.dnsMonitoringInterval=5000
java bean中已经给所有需要配置的值写上了官方默认的初始值,如果你不考虑更改默认值,实际上你只需要在你的application.properties添加如下配置就好
#redis链接地址 spring.redisson.address=192.168.1.204:6379
注意:这里配置连接的模式是单机模式,如果你想通过这种配置方式配置集群模式和哨兵模式,请参考官方wiki,修改下java bean就好