信息交换扩展

• org.apache.dubbo.remoting.exchange.ExchangeServer
• org.apache.dubbo.remoting.exchange.ExchangeClient

org.apache.dubbo.remoting.exchange.exchanger.HeaderExchanger

src
    |-java
        |-com
                |-XxxExchanger.java (实现Exchanger接口)
                |-XxxExchangeServer.java (实现ExchangeServer接口)
                |-XxxExchangeClient.java (实现ExchangeClient接口)
    |-resources
        |-META-INF
            |-dubbo

XxxExchanger.java：

package com.xxx;
import org.apache.dubbo.remoting.exchange.ExchangeServer;
public class XxxExchangeServer impelements ExchangeServer {
    // ...
}

XxxExchangeClient.java：