缓存扩展
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扩展说明
用请求参数作为 key，缓存返回结果。
扩展接口
org.apache.dubbo.cache.CacheFactory
扩展配置
<dubbo:service cache="lru" />
<!-- 方法级缓存 -->
<dubbo:service><dubbo:method cache="lru" /></dubbo:service>
<!-- 缺省值设置，当<dubbo:service>没有配置cache属性时，使用此配置 -->
<dubbo:provider cache="xxx,yyy" />
已知扩展
org.apache.dubbo.cache.support.lru.LruCacheFactoryorg.apache.dubbo.cache.support.threadlocal.ThreadLocalCacheFactoryorg.apache.dubbo.cache.support.jcache.JCacheFactory
扩展示例
Maven 项目结构：
src
|-main
|-java
|-com
|-xxx
|-XxxCacheFactory.java (实现CacheFactory接口)
|-resources
|-META-INF
|-dubbo
|-org.apache.dubbo.cache.CacheFactory (纯文本文件，内容为：xxx=com.xxx.XxxCacheFactory)
XxxCacheFactory.java：
package com.xxx;
import org.apache.dubbo.cache.CacheFactory;
public class XxxCacheFactory implements CacheFactory {
public Cache getCache(URL url, String name) {
return new XxxCache(url, name);
}
}
XxxCache.java：
package com.xxx;
import org.apache.dubbo.cache.Cache;
public class XxxCache implements Cache {
public Cache(URL url, String name) {
// ...
}
public void put(Object key, Object value) {
// ...
}
public Object get(Object key) {
// ...
}
}
META-INF/dubbo/org.apache.dubbo.cache.CacheFactory：
xxx=com.xxx.XxxCacheFactory
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