路由扩展
(1) 扩展说明:
从多个服务提者方中选择一个进行调用。
(2) 扩展接口:
com.alibaba.dubbo.rpc.cluster.RouterFactory com.alibaba.dubbo.rpc.cluster.Router |
(3) 扩展配置:
< dubbo:protocol router = "xxx" /> < dubbo:provider router = "xxx" /> <!-- 缺省值设置,当<dubbo:protocol>没有配置loadbalance时,使用此配置 --> |
(4) 已知扩展:
com.alibaba.dubbo.rpc.cluster.router.ScriptRouterFactory com.alibaba.dubbo.rpc.cluster.router.FileRouterFactory |
(5) 扩展示例:
Maven项目结构
src |-main |-java |-com |-xxx |-XxxRouterFactory.java (实现LoadBalance接口) |-resources |-META-INF |-dubbo |-com.alibaba.dubbo.rpc.cluster.RouterFactory (纯文本文件,内容为:xxx=com.xxx.XxxRouterFactory) |
XxxRouterFactory.java
package com.xxx; import com.alibaba.dubbo.rpc.cluster.RouterFactory; import com.alibaba.dubbo.rpc.Invoker; import com.alibaba.dubbo.rpc.Invocation; import com.alibaba.dubbo.rpc.RpcException; public class XxxRouterFactory implements RouterFactory { public <T> List<Invoker<T>> select(List<Invoker<T>> invokers, Invocation invocation) throws RpcException { // ... } } |
META-INF/dubbo/com.alibaba.dubbo.rpc.cluster.RouterFactory
xxx=com.xxx.XxxRouterFactory |
Labels:
None
Add Comment