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我有一个发送和接收 iso 消息的 jpos 实现。它首先需要登录，然后再进行其他任何操作。作为客户端，我能够发送请求（customized.xml 打包程序）并且还可以成功接收响应而没有问题。

但是，当对方向我发送请求时，同一个打包器（customized.xml 打包器）无法将收到的请求解包。

为了尝试解决传入请求的问题，我决定创建一个新的自定义打包程序（customized2.xml），但我注意到所有传入请求仍然引用旧打包程序（customized.xml）。我该如何处理或者最好的做法是什么。

我的配置：

10_mychannel.xml

    <?xml version="1.0" encoding="UTF-8"?>
    <channel-adaptor name="mychannel-channel" logger="Q2">
       <channel class="org.jpos.iso.channel.ASCIIChannel" type="client" connect="yes" logger="Q2" realm="post-channel" packager="org.jpos.iso.packager.GenericPackager">
          <property name="packager-config" value="cfg/customized.xml" />
          <property name="packager-logger" value="Q2" />
          <property name="packager-realm" value="custom-packager" />
          <property name="host" value="14.101.333.111" />
          <property name="port" value="7777" />
          <property name="length-digits" value="6" />
          <property name="connection-timeout" value="30000" />
          <property name="timeout" value="300000" />
       </channel>
       <in>my-channel-send</in>
      <out>my-channel-receive</out>
       <reconnect-delay>10000</reconnect-delay>
       <keep-alive>yes</keep-alive>
    </channel-adaptor>

20_my_mux.xml

    <mux class="org.jpos.q2.iso.QMUX" logger="Q2" name="my-mux">
    <in>my-channel-receive</in>
    <out>my-channel-send</out>
    <ready>my-channel.ready</ready>
    </mux>

21_my_q_beans.xml

    <qbean name='LogonManager' class='com.my.processor.LogonManager' />

50_my_server.xml

    <server class="org.jpos.q2.iso.QServer" logger="Q2" name="xml-server-7777" realm="xml-server-7777">
      <attr name="port" type="java.lang.Integer">7777</attr>
      <channel class="org.jpos.iso.channel.ASCIIChannel" packager="org.jpos.iso.packager.GenericPackager" type="server" logger="Q2" realm="xml-server-7777">
      <property name="packager-config" value="cfg/customized2.xml" />
      <property name="timeout" value="180000"/>
      </channel>
      <request-listener class="com.my.processor.myListener" logger="Q2" realm="incoming-request-listener" />
    </server>

来样请求

    public class myListener implements ISORequestListener{

        private static final String FTREQUEST = "1200";
        private static final String REVADVICE = "1420";
        private static final String NETWORKREQ = "1804";

        Log log1;

        @Override
        public boolean process(ISOSource source, ISOMsg m) {
            System.out.println("::::: Waiting :::::");
            log.info("::::: Inside  Listener :::::");
            try {
                String mti = m.getMTI();
                System.out.println("mti ::: " + mti);
                log.info("mti ::: " + mti);
                switch (mti) {
                    case FTREQUEST:
                        log.info("Inside Financial Transaction Request");
                        //implementation here 

                        m.setMTI("1210");
                        m.set(2, m.getString(2));
                        m.set(3, m.getString(3));
                        m.set(4, m.getString(4));
                        m.set(11, m.getString(11));
                        m.set(12, m.getString(12));
                        m.set(39, "100");
                        source.send(m);

                        break;
                    case REVADVICE:
                        log.info("Reversal Advice");
                        break;
                    case NETWORKREQ:
                        log.info("Network Management Request");
                        break;
                }

            } catch (Exception ex) {
                ex.printStackTrace(System.out);
            }
            return true;
        }
    }
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