1、在写处理消息的方法前,我们得把相关的model类写好。
在model包下创建message(req与resp),具体创建如图所示:BaseMessage类
/** * 消息基类(普通用户 -> 公众帐号) * */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(text/image/location/link) 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; }}
ImageMessage类
/** * 图片消息 * */public class ImageMessage extends BaseMessage { // 图片链接 private String PicUrl; public String getPicUrl() { return PicUrl; } public void setPicUrl(String picUrl) { PicUrl = picUrl; }}
LinkMessage类
/** * 链接消息 * */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; }}
LocationMessage类
/** * 地理位置消息 * */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; }}
MenuMessage类
public class MenuMessage extends BaseMessage { private String EventKey; public String getEventKey() { return EventKey; } public void setEventKey(String eventKey) { EventKey = eventKey; }}
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TextMessage类
/** * 文本消息 * */public class TextMessage extends BaseMessage { // 消息内容 private String Content; public String getContent() { return Content; } public void setContent(String content) { Content = content; }}
VoiceMessage类
/** * 音频消息 * */public class VoiceMessage extends BaseMessage { // 媒体ID private String MediaId; // 语音格式 private String Format; public String getMediaId() { return MediaId; } public void setMediaId(String mediaId) { MediaId = mediaId; } public String getFormat() { return Format; } public void setFormat(String format) { Format = format; }}
Article类
/** * 图文model * */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,限制图片链接的域名需要与开发者填写的基本资料中的Url一致 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; }}
BaseMessage类
/** * 消息基类(公众帐号 -> 普通用户) * */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; }}
NewsMessage类
/** * 文本消息 * */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 ListArticles; public int getArticleCount() { return ArticleCount; } public void setArticleCount(int articleCount) { ArticleCount = articleCount; } public List getArticles() { return Articles; } public void setArticles(List articles) { Articles = articles; }}
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TextMessage类
/** * 文本消息 * */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; }}
2、model类创建好了之后,在util包中建立一个MessageUtil类来解析和响应消息。
a、接收消息时是xml,所以需要解析,这里我们借助于开源框架dom4j去解析xml(这里使用的是dom4j-1.6.1.jar) b、而响应消息要把java类转换成xml,这里我们将采用开源框架xstream来实现两者的转换(这里使用的是xstream-1.3.1.jar)package com.util;import java.io.InputStream;import java.io.Writer;import java.util.HashMap;import java.util.List;import java.util.Map;import javax.servlet.http.HttpServletRequest;import com.model.message.response.Article;import com.model.message.response.NewsMessage;import com.model.message.response.TextMessage;import org.dom4j.Document;import org.dom4j.Element;import org.dom4j.io.SAXReader;import com.thoughtworks.xstream.XStream;import com.thoughtworks.xstream.core.util.QuickWriter;import com.thoughtworks.xstream.io.HierarchicalStreamWriter;import com.thoughtworks.xstream.io.xml.PrettyPrintWriter;import com.thoughtworks.xstream.io.xml.XppDriver;/** * 消息工具类 * */public class MessageUtil { /** * 返回消息类型:文本 */ public static final String RESP_MESSAGE_TYPE_TEXT = "text"; /** * 返回消息类型:音乐 */ public static final String RESP_MESSAGE_TYPE_MUSIC = "music"; /** * 返回消息类型:图文 */ public static final String RESP_MESSAGE_TYPE_NEWS = "news"; /** * 请求消息类型:文本 */ public static final String REQ_MESSAGE_TYPE_TEXT = "text"; /** * 请求消息类型:图片 */ public static final String REQ_MESSAGE_TYPE_IMAGE = "image"; /** * 请求消息类型:链接 */ public static final String REQ_MESSAGE_TYPE_LINK = "link"; /** * 请求消息类型:地理位置 */ public static final String REQ_MESSAGE_TYPE_LOCATION = "location"; /** * 请求消息类型:音频 */ public static final String REQ_MESSAGE_TYPE_VOICE = "voice"; /** * 请求消息类型:推送 */ public static final String REQ_MESSAGE_TYPE_EVENT = "event"; /** * 事件类型:subscribe(订阅)and 未关注群体扫描二维码 */ public static final String EVENT_TYPE_SUBSCRIBE = "subscribe"; /** * 事件类型:已关注群体扫描二维码 */ public static final String EVENT_TYPE_SCAN="SCAN"; /** * 事件类型:unsubscribe(取消订阅) */ public static final String EVENT_TYPE_UNSUBSCRIBE = "unsubscribe"; /** * 事件类型:CLICK(自定义菜单点击事件) */ public static final String EVENT_TYPE_CLICK = "CLICK"; /** * 事件类型:VIEW(点击自定义菜单跳转链接时的事件) */ public static final String EVENT_TYPE_VIEW = "VIEW"; /** * 事件类型:transfer_customer_service(把消息推送给客服) */ public static final String EVENT_TYPE_TRANSFER_CUSTOMER_SERVICE = "transfer_customer_service"; /** * 解析微信发来的请求(XML) * * @param request * @return * @throws Exception */ @SuppressWarnings("unchecked") //屏蔽某些编译时的警告信息(在强制类型转换的时候编译器会给出警告) public static MapparseXml(HttpServletRequest request) throws Exception { // 将解析结果存储在HashMap中 Map map = new HashMap (); // 从request中取得输入流 InputStream inputStream = request.getInputStream(); // 读取输入流 SAXReader reader = new SAXReader(); Document document = reader.read(inputStream); // 得到xml根元素 Element root = document.getRootElement(); // 得到根元素的所有子节点 List elementList = root.elements(); // 遍历所有子节点 for (Element e : elementList) map.put(e.getName(), e.getText()); // 释放资源 inputStream.close(); inputStream = null; return map; } /** * 文本消息对象转换成xml * * @param textMessage 文本消息对象 * @return xml */ public static String textMessageToXml(TextMessage textMessage) { xstream.alias("xml", textMessage.getClass()); return xstream.toXML(textMessage); } /** * 图文消息对象转换成xml * * @param newsMessage 图文消息对象 * @return xml */ public static String newsMessageToXml(NewsMessage newsMessage) { xstream.alias("xml", newsMessage.getClass()); xstream.alias("item", new Article().getClass()); return xstream.toXML(newsMessage); } /** * 扩展xstream,使其支持CDATA块 * * @date 2013-05-19 */ private static XStream xstream = new XStream(new XppDriver() { public HierarchicalStreamWriter createWriter(Writer out) { return new PrettyPrintWriter(out) { // 对所有xml节点的转换都增加CDATA标记 boolean cdata = true; @SuppressWarnings("unchecked") public void startNode(String name, Class clazz) { super.startNode(name, clazz); } protected void writeText(QuickWriter writer, String text) { if (cdata) { writer.write(""); } else { writer.write(text); } } }; } });}
3、在CoreServiceImpl.java中完善processRequest的逻辑
注:
这里加入了默认回复消息,qq怀旧表情回复(最新的无法识别),单、多图文回复等等。package com.service.core;import com.model.message.response.Article;import com.model.message.response.NewsMessage;import com.model.message.response.TextMessage;import com.util.MessageUtil;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.stereotype.Service;import javax.servlet.http.HttpServletRequest;import java.util.ArrayList;import java.util.Date;import java.util.List;import java.util.Map;import java.util.regex.Matcher;import java.util.regex.Pattern;/** * 核心服务类 */@Service("coreService")public class CoreServiceImpl implements CoreService { private static Logger log = LoggerFactory.getLogger(CoreServiceImpl.class); /** * 处理微信发来的请求(包括事件的推送) * * @param request * @return */ public String processRequest(HttpServletRequest request) { String respMessage = null; try { // 默认返回的文本消息内容 String respContent = "请求处理异常,请稍候尝试!"; // xml请求解析 MaprequestMap = MessageUtil.parseXml(request); // 发送方帐号(open_id) String fromUserName = requestMap.get("FromUserName"); // 公众帐号 String toUserName = requestMap.get("ToUserName"); // 消息类型 String msgType = requestMap.get("MsgType"); // 回复文本消息 TextMessage textMessage = new TextMessage(); textMessage.setToUserName(fromUserName); textMessage.setFromUserName(toUserName); textMessage.setCreateTime(new Date().getTime()); textMessage.setMsgType(MessageUtil.RESP_MESSAGE_TYPE_TEXT); textMessage.setFuncFlag(0); // 创建图文消息 NewsMessage newsMessage = new NewsMessage(); newsMessage.setToUserName(fromUserName); newsMessage.setFromUserName(toUserName); newsMessage.setCreateTime(new Date().getTime()); newsMessage.setMsgType(MessageUtil.RESP_MESSAGE_TYPE_NEWS); newsMessage.setFuncFlag(0); List articleList = new ArrayList (); // 接收文本消息内容 String content = requestMap.get("Content"); // 自动回复文本消息 if (msgType.equals(MessageUtil.REQ_MESSAGE_TYPE_TEXT)) { //如果用户发送表情,则回复同样表情。 if (isQqFace(content)) { respContent = content; textMessage.setContent(respContent); // 将文本消息对象转换成xml字符串 respMessage = MessageUtil.textMessageToXml(textMessage); } else { //回复固定消息 switch (content) { case "1": { StringBuffer buffer = new StringBuffer(); buffer.append("您好,我是小8,请回复数字选择服务:").append("\n\n"); buffer.append("11 可查看测试单图文").append("\n"); buffer.append("12 可测试多图文发送").append("\n"); buffer.append("13 可测试网址").append("\n"); buffer.append("或者您可以尝试发送表情").append("\n\n"); buffer.append("回复“1”显示此帮助菜单").append("\n"); respContent = String.valueOf(buffer); textMessage.setContent(respContent); respMessage = MessageUtil.textMessageToXml(textMessage); break; } case "11": { //测试单图文回复 Article article = new Article(); article.setTitle("微信公众帐号开发教程Java版"); // 图文消息中可以使用QQ表情、符号表情 article.setDescription("这是测试有没有换行\n\n如果有空行就代表换行成功\n\n点击图文可以跳转到百度首页"); // 将图片置为空 article.setPicUrl("http://www.sinaimg.cn/dy/slidenews/31_img/2016_38/28380_733695_698372.jpg"); article.setUrl("http://www.baidu.com"); articleList.add(article); newsMessage.setArticleCount(articleList.size()); newsMessage.setArticles(articleList); respMessage = MessageUtil.newsMessageToXml(newsMessage); break; } case "12": { //多图文发送 Article article1 = new Article(); article1.setTitle("紧急通知,不要捡这种钱!湛江都已经传疯了!\n"); article1.setDescription(""); article1.setPicUrl("http://www.sinaimg.cn/dy/slidenews/31_img/2016_38/28380_733695_698372.jpg"); article1.setUrl("http://mp.weixin.qq.com/s?__biz=MjM5Njc2OTI4NQ==&mid=2650924309&idx=1&sn=8bb6ae54d6396c1faa9182a96f30b225&chksm=bd117e7f8a66f769dc886d38ca2d4e4e675c55e6a5e01e768b383f5859e09384e485da7bed98&scene=4#wechat_redirect"); Article article2 = new Article(); article2.setTitle("湛江谁有这种女儿,请给我来一打!"); article2.setDescription(""); article2.setPicUrl("http://www.sinaimg.cn/dy/slidenews/31_img/2016_38/28380_733695_698372.jpg"); article2.setUrl("http://mp.weixin.qq.com/s?__biz=MjM5Njc2OTI4NQ==&mid=2650924309&idx=2&sn=d7ffc840c7e6d91b0a1c886b16797ee9&chksm=bd117e7f8a66f7698d094c2771a1114853b97dab9c172897c3f9f982eacb6619fba5e6675ea3&scene=4#wechat_redirect"); Article article3 = new Article(); article3.setTitle("以上图片我就随意放了"); article3.setDescription(""); article3.setPicUrl("http://www.sinaimg.cn/dy/slidenews/31_img/2016_38/28380_733695_698372.jpg"); article3.setUrl("http://mp.weixin.qq.com/s?__biz=MjM5Njc2OTI4NQ==&mid=2650924309&idx=3&sn=63e13fe558ff0d564c0da313b7bdfce0&chksm=bd117e7f8a66f7693a26853dc65c3e9ef9495235ef6ed6c7796f1b63abf1df599aaf9b33aafa&scene=4#wechat_redirect"); articleList.add(article1); articleList.add(article2); articleList.add(article3); newsMessage.setArticleCount(articleList.size()); newsMessage.setArticles(articleList); respMessage = MessageUtil.newsMessageToXml(newsMessage); break; } case "13": { //测试网址回复 respContent = " 百度主页"; textMessage.setContent(respContent); // 将文本消息对象转换成xml字符串 respMessage = MessageUtil.textMessageToXml(textMessage); break; } default: { respContent = "(这是里面的)很抱歉,现在小8暂时无法提供此功能给您使用。\n\n回复“1”显示帮助信息"; textMessage.setContent(respContent); // 将文本消息对象转换成xml字符串 respMessage = MessageUtil.textMessageToXml(textMessage); } } } } // 图片消息 else if (msgType.equals(MessageUtil.REQ_MESSAGE_TYPE_IMAGE)) { respContent = "您发送的是图片消息!"; textMessage.setContent(respContent); // 将文本消息对象转换成xml字符串 respMessage = MessageUtil.textMessageToXml(textMessage); } // 地理位置消息 else if (msgType.equals(MessageUtil.REQ_MESSAGE_TYPE_LOCATION)) { respContent = "您发送的是地理位置消息!"; textMessage.setContent(respContent); // 将文本消息对象转换成xml字符串 respMessage = MessageUtil.textMessageToXml(textMessage); } // 链接消息 else if (msgType.equals(MessageUtil.REQ_MESSAGE_TYPE_LINK)) { respContent = "您发送的是链接消息!";textMessage.setContent(respContent); // 将文本消息对象转换成xml字符串 respMessage = MessageUtil.textMessageToXml(textMessage); } // 音频消息 else if (msgType.equals(MessageUtil.REQ_MESSAGE_TYPE_VOICE)) { respContent = "您发送的是音频消息!"; textMessage.setContent(respContent); // 将文本消息对象转换成xml字符串 respMessage = MessageUtil.textMessageToXml(textMessage); } } catch (Exception e) { e.printStackTrace(); } return respMessage; }/** * 判断是否是QQ表情 * * @param content * @return */public static boolean isQqFace(String content) { boolean result = false; // 判断QQ表情的正则表达式 String qqfaceRegex = "/::\\)|/::~|/::B|/::\\||/:8-\\)|/::<|/::$|/::X|/::Z|/::'\\(|/::-\\||/::@|/::P|/::D|/::O|/::\\(|/::\\+|/:--b|/::Q|/::T|/:,@P|/:,@-D|/::d|/:,@o|/::g|/:\\|-\\)|/::!|/::L|/::>|/::,@|/:,@f|/::-S|/:\\?|/:,@x|/:,@@|/::8|/:,@!|/:!!!|/:xx|/:bye|/:wipe|/:dig|/:handclap|/:&-\\(|/:B-\\)|/:<@|/:@>|/::-O|/:>-\\||/:P-\\(|/::'\\||/:X-\\)|/::\\*|/:@x|/:8\\*|/:pd|/: |/:beer|/:basketb|/:oo|/:coffee|/:eat|/:pig|/:rose|/:fade|/:showlove|/:heart|/:break|/:cake|/:li|/:bome|/:kn|/:footb|/:ladybug|/:shit|/:moon|/:sun|/:gift|/:hug|/:strong|/:weak|/:share|/:v|/:@\\)|/:jj|/:@@|/:bad|/:lvu|/:no|/:ok|/:love|/: |/:jump|/:shake|/: |/:circle|/:kotow|/:turn|/:skip|/:oY|/:#-0|/:hiphot|/:kiss|/:<&|/:&>"; Pattern p = Pattern.compile(qqfaceRegex); Matcher m = p.matcher(content); if (m.matches()) { result = true; } return result; }}
因为这里只是一个demo,所有东西都是写死的,在后期扩展时,把写好的数据库的回复模板加入即可。
4、做完以上,相信你在测试号上能够实现相应的消息回复功能了。下一篇讲自定义菜单的操作。