Partially developed micro-channel message - the message type and message tools

In fact, the message is sent by the user of your account of the public, the message is first received micro-channel platform, then micro-channel platform will be transferred to the message that you specified in the interface configuration mode of development in the URL address.

All the extracted message push message fields are defined out of the package into a base class, the public fields comprising: a creation time ToUserName (developer micro signal), fromusername (sender account number, OPEN_ID), CreateTime (message ), MsgType (message type), MsgId (message ID), packaging group class BaseMessage after the code is as follows:

/**
 * 请求消息基类（普通用户 -> 公众帐号）
 * @author bym @date 2018年7月4日
 */
public class BaseMessage {
	// 开发者微信号
	private String ToUserName;
	// 发送方帐号（一个OpenID）
	private String FromUserName;
	// 消息创建时间 （整型）
	private long CreateTime;
	// 消息类型
	private String MsgType;
	// 消息id，64位整型
	private long MsgId;
	
	public String getToUserName() {
		return ToUserName;
	}

	public void setToUserName(String toUserName) {
		ToUserName = toUserName;
	}

	public String getFromUserName() {
		return FromUserName;
	}

	public void setFromUserName(String fromUserName) {
		FromUserName = fromUserName;
	}

	public long getCreateTime() {
		return CreateTime;
	}

	public void setCreateTime(long createTime) {
		CreateTime = createTime;
	}

	public String getMsgType() {
		return MsgType;
	}

	public void setMsgType(String msgType) {
		MsgType = msgType;
	}

	public long getMsgId() {
		return MsgId;
	}

	public void setMsgId(long msgId) {
		MsgId = msgId;
	}
}

请求消息之文本消息

/**
 * 文本消息
 * @author bym @date 2018年7月4日
 */
public class TextMessage extends BaseMessage {
	// 消息内容
	private String Content;

	public String getContent() {
		return Content;
	}

	public void setContent(String content) {
		Content = content;
	}
}

Pictures of the request message is a message

/**
 * 图片消息
 * @author bym @date 2018年7月4日
 */
public class ImageMessage extends BaseMessage {
	// 图片链接
	private String PicUrl;

	public String getPicUrl() {
		return PicUrl;
	}

	public void setPicUrl(String picUrl) {
		PicUrl = picUrl;
	}
}

Location request message of the message

/**
 * 地理位置消息
 * @author bym @date 2018年7月4日
 */
public class LocationMessage extends BaseMessage {
	// 地理位置维度
	private String Location_X;
	// 地理位置经度
	private String Location_Y;
	// 地图缩放大小
	private String Scale;
	// 地理位置信息
	private String Label;

	public String getLocation_X() {
		return Location_X;
	}

	public void setLocation_X(String location_X) {
		Location_X = location_X;
	}

	public String getLocation_Y() {
		return Location_Y;
	}

	public void setLocation_Y(String location_Y) {
		Location_Y = location_Y;
	}

	public String getScale() {
		return Scale;
	}

	public void setScale(String scale) {
		Scale = scale;
	}

	public String getLabel() {
		return Label;
	}

	public void setLabel(String label) {
		Label = label;
	}
}

Request link message is a message of   

/**
 * 链接消息
 * @author bym @date 2018年7月4日
 */
public class LinkMessage extends BaseMessage {
	// 消息标题
	private String Title;
	// 消息描述
	private String Description;
	// 消息链接
	private String Url;

	public String getTitle() {
		return Title;
	}

	public void setTitle(String title) {
		Title = title;
	}

	public String getDescription() {
		return Description;
	}

	public void setDescription(String description) {
		Description = description;
	}

	public String getUrl() {
		return Url;
	}

	public void setUrl(String url) {
		Url = url;
	}
}

The message requests a voice message

/**
 * 语音消息
 * @author bym @date 2018年7月4日
 */
public class VoiceMessage extends BaseMessage {
	// 媒体ID
	private String MediaId;
	// 语音格式
	private String Format;
	// 语音识别结果，UTF8编码
	private String Recognition;

	public String getMediaId() {
		return MediaId;
	}

	public void setMediaId(String mediaId) {
		MediaId = mediaId;
	}

	public String getFormat() {
		return Format;
	}

	public void setFormat(String format) {
		Format = format;
	}

	public String getRecognition() {
		return Recognition;
	}

	public void setRecognition(String recognition) {
		Recognition = recognition;
	}
}

The video message request message

/**
 * 视频消息
 * @author bym @date 2018年7月4日
 */
public class VideoMessage extends BaseMessage {
	// 视频消息媒体id
	private String MediaId;
	// 视频消息缩略图的媒体id
	private String ThumbMediaId;

	public String getMediaId() {
		return MediaId;
	}

	public void setMediaId(String mediaId) {
		MediaId = mediaId;
	}

	public String getThumbMediaId() {
		return ThumbMediaId;
	}

	public void setThumbMediaId(String thumbMediaId) {
		ThumbMediaId = thumbMediaId;
	}
}

Response message base class

/**
 * 消息基类（公众帐号 -> 普通用户）
 * @author bym @date 2018年7月4日
 */
public class BaseMessage {
	// 接收方帐号（收到的OpenID）
		private String ToUserName;
		// 开发者微信号
		private String FromUserName;
		// 消息创建时间 （整型）
		private long CreateTime;
		// 消息类型（text/music/news）
		private String MsgType;
		// 位0x0001被标志时，星标刚收到的消息
		private int FuncFlag;

		public String getToUserName() {
			return ToUserName;
		}

		public void setToUserName(String toUserName) {
			ToUserName = toUserName;
		}

		public String getFromUserName() {
			return FromUserName;
		}

		public void setFromUserName(String fromUserName) {
			FromUserName = fromUserName;
		}

		public long getCreateTime() {
			return CreateTime;
		}

		public void setCreateTime(long createTime) {
			CreateTime = createTime;
		}

		public String getMsgType() {
			return MsgType;
		}

		public void setMsgType(String msgType) {
			MsgType = msgType;
		}

		public int getFuncFlag() {
			return FuncFlag;
		}

		public void setFuncFlag(int funcFlag) {
			FuncFlag = funcFlag;
		}
}

Response text message

/**
 * 文本消息
 * @author bym @date 2018年7月4日
 */
public class TextMessage extends BaseMessage {
	// 回复的消息内容
	private String Content;

	public String getContent() {
		return Content;
	}

	public void setContent(String content) {
		Content = content;
	}
}

Pictures response message

/**
 * 图片消息
 * @author bym @date 2018年7月4日
 */
public class ImageMessage extends BaseMessage {
	// 图片
	private Image Image;

	public Image getImage() {
		return Image;
	}

	public void setImage(Image image) {
		Image = image;
	}
}

Custom Picture message Image class

/**
 * 图片model
 * @author bym @date 2018年7月4日
 */
public class Image {
	// 媒体文件id
	private String MediaId;

	public String getMediaId() {
		return MediaId;
	}

	public void setMediaId(String mediaId) {
		MediaId = mediaId;
	}
}

Photo response message

/**
 * 文本消息
 * @@author bym @date 2018年7月4日
 */
public class NewsMessage extends BaseMessage {
	// 图文消息个数，限制为10条以内
	private int ArticleCount;
	// 多条图文消息信息，默认第一个item为大图
	private List<Article> Articles;
	
	public int getArticleCount() {
		return ArticleCount;
	}

	public void setArticleCount(int articleCount) {
		ArticleCount = articleCount;
	}

	public List<Article> getArticles() {
		return Articles;
	}

	public void setArticles(List<Article> articles) {
		Articles = articles;
	}

	
	
}

Defined graphic message class Article

/**
 * 图文model
 * @author bym @date 2018年7月4日
 */
public class Article {
	// 图文消息名称
	private String Title;
	// 图文消息描述
	private String Description;
	// 图片链接，支持JPG、PNG格式，较好的效果为大图640*320，小图80*80
	private String PicUrl;
	// 点击图文消息跳转链接
	private String Url;

	public String getTitle() {
		return Title;
	}

	public void setTitle(String title) {
		Title = title;
	}

	public String getDescription() {
		return null == Description ? "" : Description;
	}

	public void setDescription(String description) {
		Description = description;
	}

	public String getPicUrl() {
		return null == PicUrl ? "" : PicUrl;
	}

	public void setPicUrl(String picUrl) {
		PicUrl = picUrl;
	}

	public String getUrl() {
		return null == Url ? "" : Url;
	}

	public void setUrl(String url) {
		Url = url;
	}
}

In response to a voice message

/**
 * 语音消息
 * @author bym @date 2018年7月4日
 */
public class VoiceMessage extends BaseMessage {
	// 语音
	private Voice Voice;

	public Voice getVoice() {
		return Voice;
	}

	public void setVoice(Voice voice) {
		Voice = voice;
	}
}

Voice voice message defined class

/**
 * 语音model
 * @author bym @date 2018年7月4日
 */
public class Voice {
	// 媒体文件id
	private String MediaId;

	public String getMediaId() {
		return MediaId;
	}

	public void setMediaId(String mediaId) {
		MediaId = mediaId;
	}
}

In response to the music news

/**
 * 音乐消息
 * @author bym @date 2018年7月4日
 */
public class MusicMessage extends BaseMessage {
	// 音乐
	private Music Music;

	public Music getMusic() {
		return Music;
	}

	public void setMusic(Music music) {
		Music = music;
	}
}

Music music defined message classes

/**
 * 音乐model
 * @author bym @date 2018年7月4日
 */
public class Music {
	// 音乐标题
	private String Title;
	// 音乐描述
	private String Description;
	// 音乐链接
	private String MusicUrl;
	// 高质量音乐链接，WIFI环境优先使用该链接播放音乐
	private String HQMusicUrl;
	// 缩略图的媒体id，通过上传多媒体文件得到的id
	private String ThumbMediaId;

	public String getTitle() {
		return Title;
	}

	public void setTitle(String title) {
		Title = title;
	}

	public String getDescription() {
		return Description;
	}

	public void setDescription(String description) {
		Description = description;
	}

	public String getMusicUrl() {
		return MusicUrl;
	}

	public void setMusicUrl(String musicUrl) {
		MusicUrl = musicUrl;
	}

	public String getHQMusicUrl() {
		return HQMusicUrl;
	}

	public void setHQMusicUrl(String musicUrl) {
		HQMusicUrl = musicUrl;
	}

	public String getThumbMediaId() {
		return ThumbMediaId;
	}

	public void setThumbMediaId(String thumbMediaId) {
		ThumbMediaId = thumbMediaId;
	}
}

Responsive to the video message

/**
 * 视频消息
 * @author bym @date 2018年7月4日
 */
public class VideoMessage extends BaseMessage {
	// 视频
	private Video Video;

	public Video getVideo() {
		return Video;
	}

	public void setVideo(Video video) {
		Video = video;
	}
}

Video video message is defined in the class

/**
 * 视频model
 * @author bym @date 2018年7月4日
 */
public class Video {
	// 媒体文件id
	private String MediaId;
	// 缩略图的媒体id
	private String ThumbMediaId;

	public String getMediaId() {
		return MediaId;
	}

	public void setMediaId(String mediaId) {
		MediaId = mediaId;
	}

	public String getThumbMediaId() {
		return ThumbMediaId;
	}

	public void setThumbMediaId(String thumbMediaId) {
		ThumbMediaId = thumbMediaId;
	}
}

Resolution request message

Micro letter sent by the server method doPost user information to us when the front write doGet doPost written.

doPost method has two parameters, request encapsulates all the content-related request, the server can remove the micro-channel message sent from the request; response and we through the received response message, i.e., transmission message.

The question of how to interpret the request message into how it got the news server micro letter sent to us from the xml format in the request. Here we dom4j means of open source framework to parse XML (used here is dom4j-1.6.1.jar), then the result of the analysis obtained into HashMap, method resolution request message is as follows:

	@SuppressWarnings("unchecked")
	public static Map<String, String> parseXml(HttpServletRequest request) throws Exception {
		
		Map<String, String> map = new HashMap<String, String>();

		
		InputStream inputStream = request.getInputStream();
		
		SAXReader reader = new SAXReader();
		Document document = reader.read(inputStream);
	
		Element root = document.getRootElement();
		
		List<Element> elementList = root.elements();

		
		for (Element e : elementList)
			map.put(e.getName(), e.getText());

		inputStream.close();
		inputStream = null;

		return map;
	}

Will return a response message converted to xml

Here we will be implemented using open source framework xstream xml to Java class conversion (used here is xstream-1.3.1.jar), code is as follows:

private static XStream xstream = new XStream(new XppDriver() {
		public HierarchicalStreamWriter createWriter(Writer out) {
			return new PrettyPrintWriter(out) {
				
				boolean cdata = true;

				public void startNode(String name, Class clazz) {
					super.startNode(name, clazz);
				}

				protected void writeText(QuickWriter writer, String text) {
					if (cdata) {
						writer.write("<![CDATA[");
						writer.write(text);
						writer.write("]]>");
					} else {
						writer.write(text);
					}
				}
			};
		}
	});

	
	public static String messageToXml(TextMessage textMessage) {
		xstream.alias("xml", textMessage.getClass());
		return xstream.toXML(textMessage);
	}

	public static String messageToXml(ImageMessage imageMessage) {
		xstream.alias("xml", imageMessage.getClass());
		return xstream.toXML(imageMessage);
	}

	
	public static String messageToXml(VoiceMessage voiceMessage) {
		xstream.alias("xml", voiceMessage.getClass());
		return xstream.toXML(voiceMessage);
	}

	
	public static String messageToXml(VideoMessage videoMessage) {
		xstream.alias("xml", videoMessage.getClass());
		return xstream.toXML(videoMessage);
	}

	
	public static String messageToXml(MusicMessage musicMessage) {
		xstream.alias("xml", musicMessage.getClass());
		return xstream.toXML(musicMessage);
	}

	
	public static String messageToXml(NewsMessage newsMessage) {
		XStream xstream = new XStream();
		xstream.alias("xml", newsMessage.getClass());
		xstream.alias("item", new Article().getClass());
		return xstream.toXML(newsMessage);
	}   
	
}

Why should data be placed in CDATA, xml CDATA what's the use https://blog.csdn.net/u014401141/article/details/53453818

Since the frame itself does not support the generation xstream CDATA block, the writeText method is done xtream extended to add support CDATA blocks, when generating each element value xml.

Message processing tool package

The message processing method related to the entire package in MessageUtil tools, complete class code is as follows:

/**
 * 
 * @author bym @date 2018年7月4日
 *
 */

public class MessageUtil {
	
	public static final String REQ_MESSAGE_TYPE_TEXT = "text";
	
	public static final String REQ_MESSAGE_TYPE_IMAGE = "image";
	
	public static final String REQ_MESSAGE_TYPE_VOICE = "voice";
	
	public static final String REQ_MESSAGE_TYPE_VIDEO = "video";
	
	public static final String REQ_MESSAGE_TYPE_LOCATION = "location";
	
	public static final String REQ_MESSAGE_TYPE_LINK = "link";

	
	public static final String REQ_MESSAGE_TYPE_EVENT = "event";

	
	public static final String EVENT_TYPE_SUBSCRIBE = "subscribe";
	
	public static final String EVENT_TYPE_UNSUBSCRIBE = "unsubscribe";
	
	public static final String EVENT_TYPE_SCAN = "scan";
	
	public static final String EVENT_TYPE_LOCATION = "LOCATION";
	
	public static final String EVENT_TYPE_CLICK = "CLICK";

	
	public static final String RESP_MESSAGE_TYPE_TEXT = "text";
	
	public static final String RESP_MESSAGE_TYPE_IMAGE = "image";
	
	public static final String RESP_MESSAGE_TYPE_VOICE = "voice";
	
	public static final String RESP_MESSAGE_TYPE_VIDEO = "video";
	
	public static final String RESP_MESSAGE_TYPE_MUSIC = "music";
	
	public static final String RESP_MESSAGE_TYPE_NEWS = "news";

	@SuppressWarnings("unchecked")
	public static Map<String, String> parseXml(HttpServletRequest request) throws Exception {
		
		Map<String, String> map = new HashMap<String, String>();

		
		InputStream inputStream = request.getInputStream();
		
		SAXReader reader = new SAXReader();
		Document document = reader.read(inputStream);
	
		Element root = document.getRootElement();
		
		List<Element> elementList = root.elements();

		
		for (Element e : elementList)
			map.put(e.getName(), e.getText());

		inputStream.close();
		inputStream = null;

		return map;
	}

	private static XStream xstream = new XStream(new XppDriver() {
		public HierarchicalStreamWriter createWriter(Writer out) {
			return new PrettyPrintWriter(out) {
				
				boolean cdata = true;

				public void startNode(String name, Class clazz) {
					super.startNode(name, clazz);
				}

				protected void writeText(QuickWriter writer, String text) {
					if (cdata) {
						writer.write("<![CDATA[");
						writer.write(text);
						writer.write("]]>");
					} else {
						writer.write(text);
					}
				}
			};
		}
	});

	
	public static String messageToXml(TextMessage textMessage) {
		xstream.alias("xml", textMessage.getClass());
		return xstream.toXML(textMessage);
	}

	public static String messageToXml(ImageMessage imageMessage) {
		xstream.alias("xml", imageMessage.getClass());
		return xstream.toXML(imageMessage);
	}

	
	public static String messageToXml(VoiceMessage voiceMessage) {
		xstream.alias("xml", voiceMessage.getClass());
		return xstream.toXML(voiceMessage);
	}

	
	public static String messageToXml(VideoMessage videoMessage) {
		xstream.alias("xml", videoMessage.getClass());
		return xstream.toXML(videoMessage);
	}

	
	public static String messageToXml(MusicMessage musicMessage) {
		xstream.alias("xml", musicMessage.getClass());
		return xstream.toXML(musicMessage);
	}

	
	public static String messageToXml(NewsMessage newsMessage) {
		XStream xstream = new XStream();
		xstream.alias("xml", newsMessage.getClass());
		xstream.alias("item", new Article().getClass());
		return xstream.toXML(newsMessage);
	}   
	
}