Dubbo3 Telnet 命令擴展

擴展說明

所有服務(wù)器均支持 telnet 訪問，用于人工干預(yù)。

擴展接口

org.apache.dubbo.remoting.telnet.TelnetHandler

擴展配置

<dubbo:protocol telnet="xxx,yyy" />
<!-- 缺省值設(shè)置，當(dāng)<dubbo:protocol>沒有配置telnet屬性時，使用此配置 -->
<dubbo:provider telnet="xxx,yyy" />

已知擴展

• org.apache.dubbo.remoting.telnet.support.ClearTelnetHandler
• org.apache.dubbo.remoting.telnet.support.ExitTelnetHandler
• org.apache.dubbo.remoting.telnet.support.HelpTelnetHandler
• org.apache.dubbo.remoting.telnet.support.StatusTelnetHandler
• org.apache.dubbo.rpc.dubbo.telnet.ListTelnetHandler
• org.apache.dubbo.rpc.dubbo.telnet.ChangeTelnetHandler
• org.apache.dubbo.rpc.dubbo.telnet.CurrentTelnetHandler
• org.apache.dubbo.rpc.dubbo.telnet.InvokeTelnetHandler
• org.apache.dubbo.rpc.dubbo.telnet.TraceTelnetHandler
• org.apache.dubbo.rpc.dubbo.telnet.CountTelnetHandler
• org.apache.dubbo.rpc.dubbo.telnet.PortTelnetHandler

擴展示例

Maven 項目結(jié)構(gòu)：

src
 |-main
    |-java
        |-com
            |-xxx
                |-XxxTelnetHandler.java (實現(xiàn)TelnetHandler接口)
    |-resources
        |-META-INF
            |-dubbo
                |-org.apache.dubbo.remoting.telnet.TelnetHandler (純文本文件，內(nèi)容為：xxx=com.xxx.XxxTelnetHandler)

XxxTelnetHandler.java：

package com.xxx;
 
import org.apache.dubbo.remoting.telnet.TelnetHandler;
 
@Help(parameter="...", summary="...", detail="...")
 
public class XxxTelnetHandler implements TelnetHandler {
    public String telnet(Channel channel, String message) throws RemotingException {
        // ...
    }
}

META-INF/dubbo/org.apache.dubbo.remoting.telnet.TelnetHandler：

xxx=com.xxx.XxxTelnetHandler

用法

telnet 127.0.0.1 20880
dubbo> xxx args