使用asmack for android在XMPP数据包的Message标签中添加自定义属性？
我要收到的消息包。
Hello 我收到的消息包。
Hello
我有一个smack的源代码，这是包类。 任何人都可以帮我制作自定义数据包。 任何帮助修改源代码表示赞赏。
代码：
public abstract class Packet { protected static final String DEFAULT_LANGUAGE = java.util.Locale.getDefault().getLanguage().toLowerCase(); private static String DEFAULT_XML_NS = null; /** * Constant used as packetID to indicate that a packet has no id. To indicate that a packet * has no id set this constant as the packet's id. When the packet is asked for its id the * answer will be null. */ public static final String ID_NOT_AVAILABLE = "ID_NOT_AVAILABLE"; /** * Date format as defined in XEP-0082 - XMPP Date and Time Profiles. * The time zone is set to UTC. * * Date formats are not synchronized. Since multiple threads access the format concurrently, * it must be synchronized externally. */ public static final DateFormat XEP_0082_UTC_FORMAT = new SimpleDateFormat( "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'"); static { XEP_0082_UTC_FORMAT.setTimeZone(TimeZone.getTimeZone("UTC")); } /** * A prefix helps to make sure that ID's are unique across mutliple instances. */ private static String prefix = StringUtils.randomString(5) + "-"; /** * Keeps track of the current increment, which is appended to the prefix to * forum a unique ID. */ private static long id = 0; private String xmlns = DEFAULT_XML_NS; /** * Returns the next unique id. Each id made up of a short alphanumeric * prefix along with a unique numeric value. * * @return the next id. */ public static synchronized String nextID() { return prefix + Long.toString(id++); } public static void setDefaultXmlns(String defaultXmlns) { DEFAULT_XML_NS = defaultXmlns; } private String packetID = null; private String to = null; private String from = null; private final List packetExtensions = new CopyOnWriteArrayList(); private final Map properties = new HashMap(); private XMPPError error = null; /** * Returns the unique ID of the packet. The returned value could be null when * ID_NOT_AVAILABLE was set as the packet's id. * * @return the packet's unique ID or null if the packet's id is not available. */ public String getPacketID() { if (ID_NOT_AVAILABLE.equals(packetID)) { return null; } if (packetID == null) { packetID = nextID(); } return packetID; } /** * Sets the unique ID of the packet. To indicate that a packet has no id * pass the constant ID_NOT_AVAILABLE as the packet's id value. * * @param packetID the unique ID for the packet. */ public void setPacketID(String packetID) { this.packetID = packetID; } /** * Returns who the packet is being sent "to", or null if * the value is not set. The XMPP protocol often makes the "to" * attribute optional, so it does not always need to be set.
* * The StringUtils class provides several useful methods for dealing with * XMPP addresses such as parsing the * {@link StringUtils#parseBareAddress(String) bare address}, * {@link StringUtils#parseName(String) user name}, * {@link StringUtils#parseServer(String) server}, and * {@link StringUtils#parseResource(String) resource}. * * @return who the packet is being sent to, or null if the * value has not been set. */ public String getTo() { return to; } /** * Sets who the packet is being sent "to". The XMPP protocol often makes * the "to" attribute optional, so it does not always need to be set. * * @param to who the packet is being sent to. */ public void setTo(String to) { this.to = to; } /** * Returns who the packet is being sent "from" or null if * the value is not set. The XMPP protocol often makes the "from" * attribute optional, so it does not always need to be set.
* * The StringUtils class provides several useful methods for dealing with * XMPP addresses such as parsing the * {@link StringUtils#parseBareAddress(String) bare address}, * {@link StringUtils#parseName(String) user name}, * {@link StringUtils#parseServer(String) server}, and * {@link StringUtils#parseResource(String) resource}. * * @return who the packet is being sent from, or null if the * value has not been set. */ public String getFrom() { return from; } /** * Sets who the packet is being sent "from". The XMPP protocol often * makes the "from" attribute optional, so it does not always need to * be set. * * @param from who the packet is being sent to. */ public void setFrom(String from) { this.from = from; } /** * Returns the error associated with this packet, or null if there are * no errors. * * @return the error sub-packet or null if there isn't an error. */ public XMPPError getError() { return error; } /** * Sets the error for this packet. * * @param error the error to associate with this packet. */ public void setError(XMPPError error) { this.error = error; } /** * Returns an unmodifiable collection of the packet extensions attached to the packet. * * @return the packet extensions. */ public synchronized Collection getExtensions() { if (packetExtensions == null) { return Collections.emptyList(); } return Collections.unmodifiableList(new ArrayList(packetExtensions)); } /** * Returns the first extension of this packet that has the given namespace. * * @param namespace the namespace of the extension that is desired. * @return the packet extension with the given namespace. */ public PacketExtension getExtension(String namespace) { return getExtension(null, namespace); } /** * Returns the first packet extension that matches the specified element name and * namespace, or null if it doesn't exist. If the provided elementName is null * than only the provided namespace is attempted to be matched. Packet extensions are * are arbitrary XML sub-documents in standard XMPP packets. By default, a * DefaultPacketExtension instance will be returned for each extension. However, * PacketExtensionProvider instances can be registered with the * {@link org.jivesoftware.smack.provider.ProviderManager ProviderManager} * class to handle custom parsing. In that case, the type of the Object * will be determined by the provider. * * @param elementName the XML element name of the packet extension. (May be null) * @param namespace the XML element namespace of the packet extension. * @return the extension, or null if it doesn't exist. */ public PacketExtension getExtension(String elementName, String namespace) { if (namespace == null) { return null; } for (PacketExtension ext : packetExtensions) { if ((elementName == null || elementName.equals(ext.getElementName())) && namespace.equals(ext.getNamespace())) { return ext; } } return null; } /** * Adds a packet extension to the packet. * * @param extension a packet extension. */ public void addExtension(PacketExtension extension) { packetExtensions.add(extension); } /** * Removes a packet extension from the packet. * * @param extension the packet extension to remove. */ public void removeExtension(PacketExtension extension) { packetExtensions.remove(extension); } /** * Returns the packet property with the specified name or null if the * property doesn't exist. Property values that were orginally primitives will * be returned as their object equivalent. For example, an int property will be * returned as an Integer, a double as a Double, etc. * * @param name the name of the property. * @return the property, or null if the property doesn't exist. */ public synchronized Object getProperty(String name) { if (properties == null) { return null; } return properties.get(name); } /** * Sets a property with an Object as the value. The value must be Serializable * or an IllegalArgumentException will be thrown. * * @param name the name of the property. * @param value the value of the property. */ public synchronized void setProperty(String name, Object value) { if (!(value instanceof Serializable)) { throw new IllegalArgumentException("Value must be serialiazble"); } properties.put(name, value); } /** * Deletes a property. * * @param name the name of the property to delete. */ public synchronized void deleteProperty(String name) { if (properties == null) { return; } properties.remove(name); } /** * Returns an unmodifiable collection of all the property names that are set. * * @return all property names. */ public synchronized Collection getPropertyNames() { if (properties == null) { return Collections.emptySet(); } return Collections.unmodifiableSet(new HashSet(properties.keySet())); } /** * Returns the packet as XML. Every concrete extension of Packet must implement * this method. In addition to writing out packet-specific data, every sub-class * should also write out the error and the extensions data if they are defined. * * @return the XML format of the packet as a String. */ public abstract String toXML(); /** * Returns the extension sub-packets (including properties data) as an XML * String, or the Empty String if there are no packet extensions. * * @return the extension sub-packets as XML or the Empty String if there * are no packet extensions. */ protected synchronized String getExtensionsXML() { StringBuilder buf = new StringBuilder(); // Add in all standard extension sub-packets. for (PacketExtension extension : getExtensions()) { buf.append(extension.toXML()); } // Add in packet properties. if (properties != null && !properties.isEmpty()) { buf.append(""); // Loop through all properties and write them out. for (String name : getPropertyNames()) { Object value = getProperty(name); buf.append(""); buf.append("").append(StringUtils.escapeForXML(name)).append(""); buf.append("").append(value).append(""); } else if (value instanceof Long) { buf.append("long\">").append(value).append(""); } else if (value instanceof Float) { buf.append("float\">").append(value).append(""); } else if (value instanceof Double) { buf.append("double\">").append(value).append(""); } else if (value instanceof Boolean) { buf.append("boolean\">").append(value).append(""); } else if (value instanceof String) { buf.append("string\">"); buf.append(StringUtils.escapeForXML((String)value)); buf.append(""); } // Otherwise, it's a generic Serializable object. Serialized objects are in // a binary format, which won't work well inside of XML. Therefore, we base-64 // encode the binary data before adding it. else { ByteArrayOutputStream byteStream = null; ObjectOutputStream out = null; try { byteStream = new ByteArrayOutputStream(); out = new ObjectOutputStream(byteStream); out.writeObject(value); buf.append("java-object\">"); String encodedVal = StringUtils.encodeBase64(byteStream.toByteArray()); buf.append(encodedVal).append(""); } catch (Exception e) { e.printStackTrace(); } finally { if (out != null) { try { out.close(); } catch (Exception e) { // Ignore. } } if (byteStream != null) { try { byteStream.close(); } catch (Exception e) { // Ignore. } } } } buf.append(""); } buf.append(""); } return buf.toString(); } public String getXmlns() { return this.xmlns; } public static String getDefaultLanguage() { return DEFAULT_LANGUAGE; } @Override public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; Packet packet = (Packet) o; if (error != null ? !error.equals(packet.error) : packet.error != null) { return false; } if (from != null ? !from.equals(packet.from) : packet.from != null) { return false; } if (!packetExtensions.equals(packet.packetExtensions)) { return false; } if (packetID != null ? !packetID.equals(packet.packetID) : packet.packetID != null) { return false; } if (properties != null ? !properties.equals(packet.properties) : packet.properties != null) { return false; } if (to != null ? !to.equals(packet.to) : packet.to != null) { return false; } return !(xmlns != null ? !xmlns.equals(packet.xmlns) : packet.xmlns != null); } @Override public int hashCode() { int result; result = (xmlns != null ? xmlns.hashCode() : 0); result = 31 * result + (packetID != null ? packetID.hashCode() : 0); result = 31 * result + (to != null ? to.hashCode() : 0); result = 31 * result + (from != null ? from.hashCode() : 0); result = 31 * result + packetExtensions.hashCode(); result = 31 * result + properties.hashCode(); result = 31 * result + (error != null ? error.hashCode() : 0); return result; } }
即使我认为这是错误的方法，正如我在你的另一个问题中所说的那样。 这些是您尝试做的一些准则。
您不需要修改Packet，只需将Message扩展为您自己的自定义属性。 这将完成发送所需的内容。 对于接收，您必须修改PacketParserUtil.parseMessage（）以确定是否正在发送您的自定义消息或标准消息，并根据需要进行构造和填充。 我不知道您使用的服务器是否存在此问题，因为它是非标准的，但它可能会起作用。
另一个更简单的选择是简单地通过Packet.setProperty（）将属性作为属性添加到标准Message中，当然也可以通过getProperty（）读取。 这将创建和扩展数据包，但不需要自定义工作，因为Smack已经读/写扩展。
我在Packet Class中添加了新的Fields并在那里写了Getter和Setter。
private String chat_id = null; private String custom_packet = null; private String user_id=null; private String manager_id=null; private String time_stamp=null; private String website_id=null; private String visitor_name=null; private String end_time=null; public String getChat_id() { return chat_id; } public void setChat_id(String chat_id) { this.chat_id = chat_id; } public String getCustom_packet() { return custom_packet; } public void setCustom_packet(String custom_packet) { this.custom_packet = custom_packet; } public String getUser_id() { return user_id; } public void setUser_id(String user_id) { this.user_id = user_id; } public String getManager_id() { return manager_id; } public void setManager_id(String manager_id) { this.manager_id = manager_id; } public String getTime_stamp() { return time_stamp; } public void setTime_stamp(String time_stamp) { this.time_stamp = time_stamp; } public String getWebsite_id() { return website_id; } public void setWebsite_id(String website_id) { this.website_id = website_id; } public String getVisitor_name() { return visitor_name; } public void setVisitor_name(String visitor_name) { this.visitor_name = visitor_name; } public String getEnd_time() { return end_time; } public void setEnd_time(String end_time) { this.end_time = end_time; }
然后我将其添加到PacketParserUtils类parseMessage（）方法。
// ------------------------------CUSTOM ATTRIBUTES----------------------------- message.setChat_id(parser.getAttributeValue("", "chat_id")); message.setCustom_packet(parser.getAttributeValue("", "custom_packet")); message.setUser_id(parser.getAttributeValue("", "user_id")); message.setManager_id(parser.getAttributeValue("", "manager_id")); message.setTime_stamp(parser.getAttributeValue("", "time_stamp")); message.setWebsite_id(parser.getAttributeValue("", "website_id")); message.setVisitor_name(parser.getAttributeValue("", "visitor_name")); message.setEnd_time(parser.getAttributeValue("", "end_time")); // -----------------------------------------------------------------------------
然后我将Message Class toXML（）方法更新为此。
// ------------------------------CUSTOM TAGS----------------------------- if(getChat_id()!=null) { buf.append(" chat_id=\"").append(StringUtils.escapeForXML(getChat_id())).append("\""); } if(getCustom_packet()!=null) { buf.append(" custom_packet=\"").append(StringUtils.escapeForXML(getCustom_packet())).append("\""); } if(getUser_id()!=null) { buf.append(" user_id=\"").append(StringUtils.escapeForXML(getUser_id())).append("\""); } if(getManager_id()!=null) { buf.append(" manager_id=\"").append(StringUtils.escapeForXML(getManager_id())).append("\""); } if(getTime_stamp()!=null) { buf.append(" time_stamp=\"").append(StringUtils.escapeForXML(getTime_stamp())).append("\""); } if(getWebsite_id()!=null) { buf.append(" website_id=\"").append(StringUtils.escapeForXML(getWebsite_id())).append("\""); } if(getVisitor_name()!=null) { buf.append(" visitor_name=\"").append(StringUtils.escapeForXML(getVisitor_name())).append("\""); } if(getEnd_time()!=null) { buf.append(" end_time=\"").append(StringUtils.escapeForXML(getEnd_time())).append("\""); } //------------------------------------------------------------------------------------
这是我如何能够在MESSAGE TAG中接收自定义属性。
如果您可以添加使用smack中描述的自定义数据包扩展，那么请执行此操作。 如果您希望与不支持此类扩展的服务器或非smack客户端兼容，例如服务器不会存储它，那么请使用
message.addBody("varName","varValue); abcd varValue8b5342dcc message.getBody("varName");
不是一个理想的解决方案，但是谁使用多个langs来获得相同的消息呢？ Smack 应该允许您做的是注册您自己的消息解析以替换默认值，或者至少除了默认值之外
我们遇到了同样的问题。 这是一个通用的标签值解决方案：
在Packet Class中，添加：
public static ArrayList parseTags = new ArrayList (); public HashMap mTags ;
构造函数：mTags = new HashMap（）; 复制构造函数：mTags = p.mTags;
在PacketParserUtils.ParseMessage（）中添加
if (message.mTags != null) { for (int i=0; i
在Message.toXML中，在追加“>”之前，添加：
if (mTags != null) { Iterator> it = mTags.entrySet().iterator(); while (it.hasNext()) { Entry pairs = (Map.Entry)it.next(); String tag = (String) pairs.getKey(); String value = (String) pairs.getValue(); buf.append(" ").append(tag).append("=\"").append(value).append("\""); } }
然后，在应用程序中，在设置数据包处理程序之前，添加所有自定义标记，例如：
Packet.parseTags.add(ROOMTYPE); Packet.parseTags.add(ROOMNAME); Packet.parseTags.add(CHATTYPE);
在发送消息之前，添加以下内容：
message.mTags.put(ROOMTYPE, "Private"); message.mTags.put(ROOMNAME, UHInterface.liveSessionID); message.mTags.put(MSGTYPE, "Photo");
使用Message.setProperty()因为消息类扩展了Packet。
在Message类中使用method String toXML(), sb.append("
并在项目电话中
Message.getProperty