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GB28181：基于JAVA的Catalog目录获取[part3]

1、国标文件里面catalog的描述

2、java组装SIP流请求信令

private void doResponseInvite(ResponseEvent responseEvent, AddressFactory addressFactory, MessageFactory messageFactory, HeaderFactory headerFactory, SipProvider sipProvider, Response response, CSeqHeader cSeqHeader) throws ParseException, SipException, InvalidArgumentException {        if (responseEvent.getResponse().getStatusCode()== Response.OK) {            log.info("收到INVITE的OK返回，组装发送ACK信令");            sendAckRequest(responseEvent,messageFactory,addressFactory, headerFactory, sipProvider, response);        } else {            log.info("异常的INVITE返回，返回编码：{}",responseEvent.getResponse().getStatusCode());        }    }    private void sendAckRequest(ResponseEvent responseEvent, MessageFactory messageFactory, AddressFactory addressFactory, HeaderFactory headerFactory, SipProvider sipProvider, Response response) throws InvalidArgumentException, ParseException, SipException {        CSeqHeader cSeqHeader = (CSeqHeader) response.getHeader(CSeqHeader.NAME);        CallIdHeader callIdHeader = ((CallIdHeader) response.getHeader(CallIdHeader.NAME));        ToHeader toHeader = ((ToHeader) response.getHeader(ToHeader.NAME));        FromHeader fromHeader = ((FromHeader) response.getHeader(FromHeader.NAME));        SipURI requestURI = (SipURI) toHeader.getAddress().getURI();        MaxForwardsHeader maxForwards = headerFactory.createMaxForwardsHeader(70);        ViaHeader viaHeader = ((ViaHeader) response.getHeader(ViaHeader.NAME));        viaHeader.setRPort();        ArrayList
   
     viaHeaders = new ArrayList
    
     ();        viaHeaders.add(viaHeader);        cSeqHeader.setMethod(Request.ACK);        Request ACKRequest = messageFactory.createRequest(requestURI, Request.ACK, callIdHeader, cSeqHeader, fromHeader, toHeader, viaHeaders, maxForwards);        sipProvider.sendRequest(ACKRequest);    }
    
   

3、源码

源码：

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