Android 使用PhoneGap/Cordova 2.9.0中的插件实现mDNS/ZeroConf/Bonjour
我正在为Android制作我的第一个PhoneGap应用程序,它需要mDNS分辨率。由于Android(v4.1之前)上没有解析“.local”地址,因此我使用了ZeroConf库和JmDNS.jar文件。我已经参考了来自的插件,你可能想看看 ZeroConf.javaAndroid 使用PhoneGap/Cordova 2.9.0中的插件实现mDNS/ZeroConf/Bonjour,android,cordova,phonegap-plugins,zeroconf,Android,Cordova,Phonegap Plugins,Zeroconf,我正在为Android制作我的第一个PhoneGap应用程序,它需要mDNS分辨率。由于Android(v4.1之前)上没有解析“.local”地址,因此我使用了ZeroConf库和JmDNS.jar文件。我已经参考了来自的插件,你可能想看看 ZeroConf.java public PluginResult execute(String action, JSONArray args, String callbackId) { this.callback = callbackId;
public PluginResult execute(String action, JSONArray args, String callbackId) {
this.callback = callbackId;
if (action.equals("watch")) {
String type = args.optString(0);
if (type != null) {
watch(type);
} else {
return new PluginResult(PluginResult.Status.ERROR, "Service type not specified");
}
} else if (action.equals("unwatch")) {
String type = args.optString(0);
if (type != null) {
unwatch(type);
} else {
return new PluginResult(PluginResult.Status.ERROR, "Service type not specified");
}
} else if (action.equals("register")) {
JSONObject obj = args.optJSONObject(0);
if (obj != null) {
String type = obj.optString("type");
String name = obj.optString("name");
int port = obj.optInt("port");
String text = obj.optString("text");
if(type == null) {
return new PluginResult(PluginResult.Status.ERROR, "Missing required service info");
}
register(type, name, port, text);
} else {
return new PluginResult(PluginResult.Status.ERROR, "Missing required service info");
}
} else if (action.equals("close")) {
if(jmdns != null) {
try {
jmdns.close();
} catch (IOException e) {
e.printStackTrace();
}
}
} else if (action.equals("unregister")) {
if(jmdns != null) {
jmdns.unregisterAllServices();
}
} else {
Log.e("ZeroConf", "Invalid action: " + action);
return new PluginResult(PluginResult.Status.INVALID_ACTION);
}
PluginResult result = new PluginResult(Status.NO_RESULT);
result.setKeepCallback(true);
return result;
}
private void watch(String type) {
if(jmdns == null) {
setupWatcher();
}
Log.d("ZeroConf", "Watch " + type);
Log.d("ZeroConf", "Name: " + jmdns.getName() + " host: " + jmdns.getHostName());
jmdns.addServiceListener(type, listener);
}
private void unwatch(String type) {
if(jmdns == null) {
return;
}
jmdns.removeServiceListener(type, listener);
}
private void register (String type, String name, int port, String text) {
if(name == null) {
name = "";
}
if(text == null) {
text = "";
}
try {
ServiceInfo service = ServiceInfo.create(type, name, port, text);
jmdns.registerService(service);
} catch (IOException e) {
e.printStackTrace();
}
}
private void setupWatcher() {
Log.d("ZeroConf", "Setup watcher");
WifiManager wifi = (WifiManager) this.cordova.getActivity().getSystemService(android.content.Context.WIFI_SERVICE);
lock = wifi.createMulticastLock("ZeroConfPluginLock");
lock.setReferenceCounted(true);
lock.acquire();
try {
jmdns = JmDNS.create();
listener = new ServiceListener() {
public void serviceResolved(ServiceEvent ev) {
Log.d("ZeroConf", "Resolved");
sendCallback("added", ev.getInfo());
}
public void serviceRemoved(ServiceEvent ev) {
Log.d("ZeroConf", "Removed");
sendCallback("removed", ev.getInfo());
}
public void serviceAdded(ServiceEvent event) {
Log.d("ZeroConf", "Added");
// Force serviceResolved to be called again
jmdns.requestServiceInfo(event.getType(), event.getName(), 1);
}
};
} catch (IOException e) {
e.printStackTrace();
return;
}
}
public void sendCallback(String action, ServiceInfo info) {
JSONObject status = new JSONObject();
try {
status.put("action", action);
status.put("service", jsonifyService(info));
Log.d("ZeroConf", "Sending result: " + status.toString());
PluginResult result = new PluginResult(PluginResult.Status.OK, status);
result.setKeepCallback(true);
this.success(result, this.callback);
} catch (JSONException e) {
e.printStackTrace();
}
}
public static JSONObject jsonifyService(ServiceInfo info) {
JSONObject obj = new JSONObject();
try {
obj.put("application", info.getApplication());
obj.put("domain", info.getDomain());
obj.put("port", info.getPort());
obj.put("name", info.getName());
obj.put("server", info.getServer());
obj.put("description", info.getNiceTextString());
obj.put("protocol", info.getProtocol());
obj.put("qualifiedname", info.getQualifiedName());
obj.put("type", info.getType());
JSONArray addresses = new JSONArray();
String[] add = info.getHostAddresses();
for(int i = 0; i < add.length; i++) {
addresses.put(add[i]);
}
obj.put("addresses", addresses);
JSONArray urls = new JSONArray();
String[] url = info.getURLs();
for(int i = 0; i < url.length; i++) {
urls.put(url[i]);
}
obj.put("urls", urls);
} catch (JSONException e) {
e.printStackTrace();
return null;
}
return obj;
}
config.xml
<plugins>
<plugin name="ZeroConf" value="com.triggertrap.ZeroConf"/>
</plugins>
现在我的问题是:
我想调用一个固定的URL,例如,index.html页面中的,它应该解析为本地IP地址。我如何做到这一点?我知道这必须使用JavaScript来完成,但是如何去做呢?我搜索了很多文章,一直到这里。如果您能进一步指导我,我将不胜感激。在您收到“设备就绪”活动后的某个地方,您可以注册观看通过“你好”发布的服务广告:
ZeroConf.watch(“_http._tcp.local.”,函数(服务){
//对服务做些什么
}
但是,使用ZeroConf插件是不够的,因为您还需要在foo.local上提供内容的服务器通过bonjour发布其HTTP服务。如果您使用node.js服务器,您可以使用它。foo是本地LAN网络上设备的名称。我正试图通过此URL访问该设备。您使用什么服务器技术来访问它在foo上服务网页?如果您已经在应用程序中硬编码了foo.local,那么您正在寻找的功能是多播名称解析MDN(例如,将foo.local映射到IP地址).ZeroConf插件提供DNS服务发现,并不是MDN的直接替代品。您可能希望查看JmDNS提供的完整API,并仅使用MDN部分(如果存在)。Stribu:foo实际上是一个硬件设备arduino,此应用程序基本上是为了通过此固定URL尝试通过应用程序ping arduino。您的情况如何用这个在你的arduino上做广告:你能做到吗..我指的是这个问题-你能帮我吗?
<plugins>
<plugin name="ZeroConf" value="com.triggertrap.ZeroConf"/>
</plugins>