1. 扩展说明

负责服务调用次和调用时间的监控。

2. 扩展接口

• com.alibaba.dubbo.monitor.MonitorFactory
• com.alibaba.dubbo.monitor.Monitor

3. 扩展配置

<dubbo:monitor address="xxx://ip:port" /> <!-- 定义监控中心 -->

4. 已知扩展

com.alibaba.dubbo.monitor.support.dubbo.DubboMonitorFactory

5. 扩展示例

Maven项目结构

src
 |-main
    |-java
        |-com
            |-xxx
                |-XxxMonitorFactoryjava (实现MonitorFactory接口)
                |-XxxMonitor.java (实现Monitor接口)
    |-resources
        |-META-INF
            |-dubbo
                |-com.alibaba.dubbo.monitor.MonitorFactory (纯文本文件，内容为：xxx=com.xxx.XxxMonitorFactory)

XxxMonitorFactory.java

package com.xxx;
 
import com.alibaba.dubbo.monitor.MonitorFactory;
import com.alibaba.dubbo.monitor.Monitor;
import com.alibaba.dubbo.common.URL;
 
public class XxxMonitorFactory implements MonitorFactory {
    public Monitor getMonitor(URL url) {
        return new XxxMonitor(url);
    }
}

XxxMonitor.java

package com.xxx;
 
import com.alibaba.dubbo.monitor.Monitor;
 
public class XxxMonitor implements Monitor {
    public void count(URL statistics) {
        // ...
    }
}

META-INF/dubbo/com.alibaba.dubbo.monitor.MonitorFactory

xxx=com.xxx.XxxMonitorFactory