标签:adc col targe 就是 spro clust ica serial app
J2Cache 是 OSChina 目前正在使用的两级缓存框架。第一级缓存使用 Ehcache,第二级缓存使用 Redis 。由于大量的缓存读取会导致 L2 的网络成为整个系统的瓶颈,因此 L1 的目标是降低对 L2 的读取次数。该缓存框架主要用于集群环境中。单机也可使用,用于避免应用重启导致的 Ehcache 缓存数据丢失。
j2Cache提供了springboot 的集成。
集成方法如下:
1.引入pom.xml
<dependency> <groupId>net.oschina.j2cache</groupId> <artifactId>j2cache-spring-boot2-starter</artifactId> <version>2.7.6-release</version> </dependency> <dependency> <groupId>net.oschina.j2cache</groupId> <artifactId>j2cache-core</artifactId> <version>2.7.7-release</version> </dependency>
2.增加配置文件
ehcache3.xml
<!-- for ehcache 3.x --> <config xmlns:xsi=‘http://www.w3.org/2001/XMLSchema-instance‘ xmlns=‘http://www.ehcache.org/v3‘ xsi:schemaLocation="http://www.ehcache.org/v3 http://www.ehcache.org/schema/ehcache-core.xsd"> <!-- Don‘t remote default cache configuration --> <cache-template name="default"> <key-type>java.lang.String</key-type> <value-type>java.io.Serializable</value-type> <expiry> <ttl unit="seconds">1800</ttl> </expiry> <resources> <heap>1000</heap> <offheap unit="MB">100</offheap> </resources> </cache-template> <!-- <persistence directory="${ecache.path}"/> --> <cache alias="default" uses-template="default"/> </config>
j2cache.properties
#J2Cache configuration ######################################### # Cache Broadcast Method # values: # jgroups -> use jgroups‘s multicast # redis -> use redis publish/subscribe mechanism ######################################### j2cache.broadcast = net.oschina.j2cache.cache.support.redis.SpringRedisPubSubPolicy #组播的通道名称 jgroups.channel.name = j2cache ######################################### # Level 1&2 provider # values: # none -> disable this level cache # ehcache -> use ehcache2 as level 1 cache # ehcache3 -> use ehcache3 as level 1 cache # caffeine -> use caffeine as level 1 cache(only in memory) # redis -> use redis(hashs) as level 2 cache # [classname] -> use custom provider ######################################### j2cache.L1.provider_class = ehcache3 j2cache.L2.provider_class = net.oschina.j2cache.cache.support.redis.SpringRedisProvider #j2cache.L2.provider_class = redis j2cache.L2.config_section = redis #j2cache.L2.provider_class = redis ######################################### # Cache Serialization Provider # values: # fst -> fast-serialization # kyro -> kyro # java -> java standard # [classname implements Serializer] ######################################### j2cache.serialization = fst ######################################### # Ehcache configuration ######################################### #ehcache.name= #ehcache.configXml=/ehcache.xml ehcache3.configXml = /config/ehcache3.xml ######################################### # Caffeine configuration # caffeine.region.[name] = size, xxxx[s|m|h|d] # ######################################### caffeine.region.default = 1000, 1h ######################################### # Redis connection configuration ######################################### ######################################### # Redis Cluster Mode # # single -> single redis server # sentinel -> master-slaves servers # cluster -> cluster servers (数据库配置无效,使用 database = 0) # sharded -> sharded servers (密码、数据库必须在 hosts 中指定,且连接池配置无效 ; redis://user:password@127.0.0.1:6379/0) # ######################################### #redis.mode = sentinel redis.mode = single #cluster name just for sharded redis.cluster_name = mymaster ## redis cache namespace optional, default[j2cache] redis.namespace = j2cache ## connection #redis.hosts = 127.0.0.1:26378,127.0.0.1:26379,127.0.0.1:26380 redis.hosts = 192.168.1.100:6379 redis.timeout = 2000 redis.password = #redis.database = 0 ## redis pub/sub channel name redis.channel = j2cache ## redis pool properties redis.maxTotal = -1 redis.maxIdle = 2000 redis.maxWaitMillis = 100 redis.minEvictableIdleTimeMillis = 864000000 redis.minIdle = 1000 redis.numTestsPerEvictionRun = 10 redis.lifo = false redis.softMinEvictableIdleTimeMillis = 10 redis.testOnBorrow = true redis.testOnReturn = false redis.testWhileIdle = false redis.timeBetweenEvictionRunsMillis = 300000 redis.blockWhenExhausted = true
redis.mode = single 模式支持 single,sentinel,cluster
redis.hosts:需要配置为redis的主机
3.注入CacheChannel
@Component(value = "iCache") public class J2cacheImpl implements ICache { private String region="rx"; @Autowired private CacheChannel cacheChannel;
4.修改配置文件
application.properties
j2cache:
config-location: classpath:/config/j2cache.properties
open-spring-cache: true
allow-null-values: true
cache-clean-mode: active
redis-client: jedis
l2-cache-open: false
我们可以关闭第二级缓存,也就是只用本地缓存。
标签:adc col targe 就是 spro clust ica serial app
原文地址:https://www.cnblogs.com/yg_zhang/p/10937977.html