Android 上 JmDNS 的网络配置。已添加服务但未解决答案

【问题标题】：Network configuration for JmDNS on Android. Service added but not resolvedAndroid 上 JmDNS 的网络配置。已添加服务但未解决
【发布时间】：2014-10-02 21:09:15
【问题描述】：

我在 Android 上使用 JmDNS 解析 mDNS 服务时遇到问题。服务偶尔会解析，但大多数时候只调用 serviceAdded() 而不是 serviceResolved()！有谁知道问题可能是什么？如果我缺少一些网络配置或类似的？

我正在使用具有以下配置的以太网 (eth1)：

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:18:7d:32:77:40 brd ff:ff:ff:ff:ff:ff inet 172.18.0.191/24 brd 172.18.0.255 scope global eth0 inet6 2a00:801:19:1:218:7dff:fe32:7740/64 scope global dynamic valid_lft 2591918sec preferred_lft 604718sec inet6 fe80::218:7dff:fe32:7740/64 scope link tentative dadfailed valid_lft forever preferred_lft forever 3: sit0: <NOARP> mtu 1480 qdisc noop state DOWN link/sit 0.0.0.0 brd 0.0.0.0 5: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:14:d1:b0:7b:89 brd ff:ff:ff:ff:ff:ff inet 192.168.3.162/24 scope global eth1 inet6 fe80::214:d1ff:feb0:7b89/64 scope link valid_lft forever preferred_lft forever
Routing table: 172.18.0.1 dev eth0 scope link 224.0.0.251 dev eth1 scope link 192.168.3.0/24 dev eth1 proto kernel scope link src 192.168.3.162 172.18.0.0/24 dev eth0 proto kernel scope link src 172.18.0.191 metric 202 default via 172.18.0.1 dev eth0 default via 172.18.0.1 dev eth0 metric 202

这是我正在使用的代码：

            try {
                InetAddress address = InetAddress.getByName("192.168.3.162");
                jmDNS = JmDNS.create(address);

                serviceListener = new ServiceListener() {

                    @Override
                    public void serviceResolved(ServiceEvent serviceEvent) {
                        String additions = "";
                        if (serviceEvent.getInfo().getInetAddresses() != null && serviceEvent.getInfo().getInetAddresses().length > 0) {
                            additions = serviceEvent.getInfo().getInetAddresses()[0].getHostAddress();
                        }
                        Log.i("GPSservice.NetworkOperations", "Service resolved: " + serviceEvent.getInfo().getQualifiedName() + " port:" + serviceEvent.getInfo().getPort() + ", " + additions);
                    }

                    @Override
                    public void serviceRemoved(ServiceEvent serviceEvent) {
                        Log.i("GPSservice.NetworkOperations", "Service removed: " + serviceEvent.getName());
                    }

                    @Override
                    public void serviceAdded(ServiceEvent serviceEvent) {
                        Log.i("GPSservice.NetworkOperations", "service added");
                        jmDNS.requestServiceInfo(INVENTORY_TYPE, serviceEvent.getName());
                    }
                };
                jmDNS.addServiceListener(INVENTORY_TYPE, serviceListener);

            } catch (Exception e) {
                Log.e("GPSservice.NetworkOperations", "JmDNS error.", e);
            }

【问题讨论】：

标签： android networking jmdns

【解决方案1】：

我遇到了同样的问题。

在这里找到答案：JmDNS: Can't resolve service

基本上只需从 SourceForge SVN 存储库中下载 3.4.1 的最新源代码，这将解决解决服务的问题

http://jmdns.sourceforge.net/source-repository.html

【讨论】：

我试过了。它对我不起作用。相反，解决方案是切换到完美运行的 mdnsjava。