最近公司需要拿微信公众平台做个东西,所以就开始了最基本学习,网上很多是php版的,对于我这个只会java,不会php的就只能在网上找点只言片语来一点一点学习了。不费话了直接贴图看效果(很简单的)。
不会做关注时就回复信息,所以必须先发送“?”,才能出现提示。回复“1”和“其他”都是返回文字信息,“2”是音乐信息,“3”是图文信息。
好了,下面进入正题。
1、首先必须开通微信公中平台,还得申请到高级功能的(这个点比较坑,我等了两天才申请到的),关于申请公众平台我就不说了,网上很多介绍,自己看吧。
2、必须有自己的服务器资源,因为公众平台开发者模式开启时,必须填写接口配置信息(成为开发者)。
服务器资源我是用的是百度开发者中心来创建自己的应用。百度开发者中心:http://developer.baidu.com/
成为微信公众平台开发者前必须发布好自己的服务器资源,因为微信服务器将发送GET请求到填写的URL上(后面详细介绍)。
3、创建自己的应用。
这是整个项目结构。
下面逐一介绍:
1 public class WbChat extends HttpServlet{ 2 3 private static final long serialVersionUID = 1L; 4 5 public WbChat() { 6 super(); 7 } 8 @Override 9 protected void doGet(HttpServletRequest request, HttpServletResponse response) 10 throws ServletException, IOException { 11 //这里没有对发送信息者进行验证,直接返回了,要加验证的话自己去百度吧 12 response.setContentType("text/html;charset=UTF-8"); 13 PrintWriter pw = response.getWriter(); 14 String echo = request.getParameter("echostr"); 15 echo = new String(echo.getBytes("ISO-8859-1"),"UTF-8"); 16 pw.println(echo); 17 //当你提交成为开发者的URL和Token时,微信服务器将发送GET请求到填写的URL上, 18 //只有你返回参数echostr时,他才会认为你这个接口是通的,才会提交成功 19 } 20 21 @Override 22 protected void doPost(HttpServletRequest request, HttpServletResponse response) 23 throws ServletException, IOException { 24 // 当你用微信给平台发送信息时就会到这里 25 // 回复音乐和图文消息,我都写死了,自己可以根据自己的需要加相应的处理 26 response.setContentType("text/html;charset=UTF-8"); 27 PrintWriter pw = response.getWriter(); 28 String wxMsgXml = IOUtils.toString(request.getInputStream(),"utf-8"); 29 RequestTextMessage textMsg = null; 30 try { 31 textMsg = getRequestTextMessage(wxMsgXml); 32 } catch (Exception e) { 33 e.printStackTrace(); 34 } 35 StringBuffer replyMsg = new StringBuffer(); 36 String receive = textMsg.getContent().trim(); 37 String returnXml = null; 38 39 if (textMsg != null&&!receive.equals("")) { 40 if (receive.equals("?")||receive.equals("?")) { 41 42 replyMsg.append("欢迎使用微信平台!"); 43 replyMsg.append("\r\n1、当前时间"); 44 replyMsg.append("\r\n2、听音乐"); 45 replyMsg.append("\r\n3、看图文"); 46 replyMsg.append("\r\n其他、回音壁请直接输入文字信息"); 47 48 returnXml = getReplyTextMessage(replyMsg.toString(), textMsg.getFromUserName(),textMsg.getToUserName()); 49 50 } else if (receive.equals("2")) { 51 52 //回复音乐信息 53 returnXml = getReplyMusicMessage(textMsg.getFromUserName(),textMsg.getToUserName()); 54 55 56 } else if (receive.equals("3")) { 57 58 //回复图文 59 returnXml = getReplyTuwenMessage(textMsg.getFromUserName(),textMsg.getToUserName()); 60 61 } else if (receive.equals("1")) { 62 63 //回复时间 64 SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); 65 66 replyMsg.append("当前时间\r\n"+df.format(new Date())); 67 returnXml = getReplyTextMessage(replyMsg.toString(), textMsg.getFromUserName(),textMsg.getToUserName()); 68 69 } else { 70 71 replyMsg.append("收到: " + textMsg.getContent()); 72 returnXml = getReplyTextMessage(replyMsg.toString(), textMsg.getFromUserName(),textMsg.getToUserName()); 73 74 } 75 } else { 76 77 replyMsg.append("别闹了,这谁看得懂啊!"); 78 returnXml = getReplyTextMessage(replyMsg.toString(), textMsg.getFromUserName(),textMsg.getToUserName()); 79 80 } 81 pw.println(returnXml); 82 } 83 84 85 // 获取推送文本消息 86 private RequestTextMessage getRequestTextMessage(String xml){ 87 88 XStream xstream = new XStream(new DomDriver()); 89 90 xstream.alias("xml", RequestTextMessage.class); 91 xstream.aliasField("ToUserName", RequestTextMessage.class, "toUserName"); 92 xstream.aliasField("FromUserName", RequestTextMessage.class, "fromUserName"); 93 xstream.aliasField("CreateTime", RequestTextMessage.class, "createTime"); 94 xstream.aliasField("MsgType", RequestTextMessage.class, "messageType"); 95 xstream.aliasField("Content", RequestTextMessage.class, "content"); 96 xstream.aliasField("MsgId", RequestTextMessage.class, "msgId"); 97 98 RequestTextMessage requestTextMessage = (RequestTextMessage)xstream.fromXML(xml); 99 return requestTextMessage; 100 } 101 // 回复文本消息 102 private String getReplyTextMessage(String content, String fromUserName,String toUserName){ 103 104 ReplyTextMessage we = new ReplyTextMessage(); 105 we.setMessageType("text"); 106 we.setFuncFlag("0"); 107 we.setCreateTime(new Long(new Date().getTime()).toString()); 108 we.setContent(content); 109 we.setToUserName(fromUserName); 110 we.setFromUserName(toUserName); 111 XStream xstream = new XStream(new DomDriver()); 112 xstream.alias("xml", ReplyTextMessage.class); 113 xstream.aliasField("ToUserName", ReplyTextMessage.class, "toUserName"); 114 xstream.aliasField("FromUserName", ReplyTextMessage.class, "fromUserName"); 115 xstream.aliasField("CreateTime", ReplyTextMessage.class, "createTime"); 116 xstream.aliasField("MsgType", ReplyTextMessage.class, "messageType"); 117 xstream.aliasField("Content", ReplyTextMessage.class, "content"); 118 xstream.aliasField("FuncFlag", ReplyTextMessage.class, "funcFlag"); 119 String xml =xstream.toXML(we); 120 return xml; 121 } 122 // 回复音乐消息 123 private String getReplyMusicMessage(String fromUserName,String toUserName){ 124 125 ReplyMusicMessage we = new ReplyMusicMessage(); 126 Music music = new Music(); 127 128 we.setMessageType("music"); 129 we.setCreateTime(new Long(new Date().getTime()).toString()); 130 we.setToUserName(fromUserName); 131 we.setFromUserName(toUserName); 132 we.setFuncFlag("0"); 133 134 music.setTitle("回家|X-man"); 135 music.setDescription("萨克斯 回家 勾起你想家的愁思..."); 136 137 String url = "http://bcs.duapp.com/yishi-music/%E5%9B%9E%E5%AE%B6.mp3?sign=MBO:97068c69ccb2ab230a497c59d528dcce:LdYZ%2FLXohKa6YCy9gbxL%2B1mZ4Co%3D"; 138 String url2 = "http://bcs.duapp.com/yishi-music/X-man.mp3?sign=MBO:97068c69ccb2ab230a497c59d528dcce:cYV%2B%2Fq2Tlv2de6gqecZynCyIm3k%3D"; 139 music.setMusicUrl(url); 140 music.setHqMusicUrl(url2); 141 142 we.setMusic(music); 143 144 XStream xstream = new XStream(new DomDriver()); 145 xstream.alias("xml", ReplyMusicMessage.class); 146 xstream.aliasField("ToUserName", ReplyMusicMessage.class, "toUserName"); 147 xstream.aliasField("FromUserName", ReplyMusicMessage.class, "fromUserName"); 148 xstream.aliasField("CreateTime", ReplyMusicMessage.class, "createTime"); 149 xstream.aliasField("MsgType", ReplyMusicMessage.class, "messageType"); 150 xstream.aliasField("FuncFlag", ReplyMusicMessage.class, "funcFlag"); 151 xstream.aliasField("Music", ReplyMusicMessage.class, "Music"); 152 153 xstream.aliasField("Title", Music.class, "title"); 154 xstream.aliasField("Description", Music.class, "description"); 155 xstream.aliasField("MusicUrl", Music.class, "musicUrl"); 156 xstream.aliasField("HQMusicUrl", Music.class, "hqMusicUrl"); 157 158 String xml =xstream.toXML(we); 159 return xml; 160 } 161 162 // 回复图文消息 163 private String getReplyTuwenMessage(String fromUserName,String toUserName){ 164 165 ReplyTuwenMessage we = new ReplyTuwenMessage(); 166 167 Articles articles = new Articles(); 168 169 Item item = new Item(); 170 171 we.setMessageType("news"); 172 we.setCreateTime(new Long(new Date().getTime()).toString()); 173 we.setToUserName(fromUserName); 174 we.setFromUserName(toUserName); 175 we.setFuncFlag("0"); 176 we.setArticleCount(1); 177 178 item.setTitle("俊介"); 179 item.setDescription("俊介(SHUNSUKE)是Twitter上现在最流行的偶像犬,是哈多利系博美犬(即俗称英系博美),因为在网上卖萌而走红网络。"); 180 item.setPicUrl("http://bcs.duapp.com/yishi-music/111.jpg?sign=MBO:97068c69ccb2ab230a497c59d528dcce:hmzcBYxgI4yUaTd9GvahO1GvE%2BA%3D"); 181 item.setUrl("http://baike.baidu.com/view/6300265.htm"); 182 183 articles.setItem(item); 184 we.setArticles(articles); 185 186 XStream xstream = new XStream(new DomDriver()); 187 xstream.alias("xml", ReplyTuwenMessage.class); 188 xstream.aliasField("ToUserName", ReplyTuwenMessage.class, "toUserName"); 189 xstream.aliasField("FromUserName", ReplyTuwenMessage.class, "fromUserName"); 190 xstream.aliasField("CreateTime", ReplyTuwenMessage.class, "createTime"); 191 xstream.aliasField("MsgType", ReplyTuwenMessage.class, "messageType"); 192 xstream.aliasField("Articles", ReplyTuwenMessage.class, "Articles"); 193 194 xstream.aliasField("ArticleCount", ReplyTuwenMessage.class, "articleCount"); 195 xstream.aliasField("FuncFlag", ReplyTuwenMessage.class, "funcFlag"); 196 197 xstream.aliasField("item", Articles.class, "item"); 198 199 xstream.aliasField("Title", Item.class, "title"); 200 xstream.aliasField("Description", Item.class, "description"); 201 xstream.aliasField("PicUrl", Item.class, "picUrl"); 202 xstream.aliasField("Url", Item.class, "url"); 203 204 String xml =xstream.toXML(we); 205 return xml; 206 } 207 208 }
1 public class ReplyMusicMessage { 2 3 private String toUserName; 4 private String fromUserName; 5 private String createTime; 6 private String messageType; 7 private Music Music; 8 private String funcFlag; 9 //这里的funcFlag,微信平台接口文档里没有,但是必须写上,不然会收不到返回的信息 10 //getters、setters 11 }
1 public class ReplyTextMessage { 2 3 private String toUserName; 4 private String fromUserName; 5 private String createTime; 6 private String messageType; 7 private String content; 8 private String funcFlag; 9 // getters,setters 10 }
1 public class ReplyTuwenMessage { 2 3 private String toUserName; 4 private String fromUserName; 5 private String createTime; 6 private String messageType; 7 private int articleCount; 8 9 private Articles Articles; 10 private String funcFlag; 11 //getters,setters 12 }
1 public class RequestTextMessage { 2 private String toUserName; 3 private String fromUserName; 4 private String createTime; 5 private String messageType; 6 private String content; 7 private String msgId; 8 //getters,setters 9 }
1 public class Articles { 2 3 private Item item; 4 5 public Item getItem() { 6 return item; 7 } 8 9 public void setItem(Item item) { 10 this.item = item; 11 } 12 13 14 }
1 public class Item { 2 3 private String title; 4 private String description; 5 private String picUrl; 6 private String url; 7 //getters,setters 8 }
1 public class Music { 2 3 private String title; 4 private String description; 5 private String musicUrl; 6 private String hqMusicUrl; 7 //getters,setters 8 }
1 <servlet> 2 <servlet-name>Test</servlet-name> 3 <servlet-class>com.main.WbChat</servlet-class> 4 </servlet> 5 <servlet-mapping> 6 <servlet-name>Test</servlet-name> 7 <url-pattern>/wbchat</url-pattern> 8 </servlet-mapping>
还要加四个jar包:
利用MyEclipse直接把工程打为war包,上传到百度开发者中心,并上线该应用。
4、成为开发者,开启开发模式。
将百度开发者中心中的当前域名+/wbchat 添加到微信平台的URL处,Token可以随便填(因为我没有判断Token)。
5、大功告成,可以在微信上添加该公众账号聊天了。
小提示:
1、调试时,微信发送消息却没有受到信息,可以去看看百度开发者中心,在应用版本管理中找到该应用,然后点击高级下的日志,查看日志来看出什么问题了
2、下载jar包地址:http://jarfiles.pandaidea.com/
3、不要听百度开发者中心说的那个”如何提交代码“,它是使用svn,它给的下载svn地址下的是svn1.8的,根本就checkout不了工程,如果想使用svn的话,就得去下载svn1.6的版本来使用。我是使用上传更新war包来更新工程的,这样在自己的MyEclipse中直接编写。