這篇文章利用java開發(fā)微信公眾號(hào)案例代碼，如何接入公眾號(hào)，訂閱號(hào)怎么樣接收消息,具有一定的參考價(jià)值，感興趣的小伙伴們可以參考一下

微信公眾號(hào)開發(fā)一般是針對(duì)企業(yè)和組織的，個(gè)人一般只能申請(qǐng)訂閱號(hào)，并且調(diào)用的接口有限，下面我們就來簡單的描述下接入公眾號(hào)的步驟：

1、首先你需要一個(gè)郵箱在微信公眾號(hào)平臺(tái)進(jìn)行注冊(cè)；
???? 注冊(cè)的方式有訂閱號(hào)、公眾號(hào)、小程序和企業(yè)號(hào)，個(gè)人我們這里只能選擇訂閱號(hào)

2、注冊(cè)完后，我們登錄到公眾號(hào)平臺(tái)--->開發(fā)--->基本配置,這里需要填寫URL和token，URL就是我們使用服務(wù)器的接口；

3、Java Web服務(wù)器程序編譯好且在服務(wù)器上部署可以運(yùn)行的話，可在微信公眾號(hào)進(jìn)行在線接口調(diào)試：

??? 1）、選擇合適的接口
??? 2）、系統(tǒng)會(huì)生成該接口的參數(shù)表，您可以直接在文本框內(nèi)填入對(duì)應(yīng)的參數(shù)值（紅色星號(hào)表示該字段必填）
??? 3）、點(diǎn)擊檢查問題按鈕，即可得到相應(yīng)的調(diào)試信息

?? eg:獲取access_token的步驟：

?? 1）、接口類型：基礎(chǔ)支持
?? 2）、接口列表：獲取access_token接口/token
?? 3）、填寫相應(yīng)的參數(shù)：grant_type、appid、secret
?? 4）、點(diǎn)擊檢查問題
?? 5）、驗(yàn)證成功會(huì)返回結(jié)果和提示，結(jié)果為：200 ok,提示：Request successful即表示驗(yàn)證成功

?? 我們這里驗(yàn)證比較多的是消息接口調(diào)試：文本消息、圖片消息、語音消息、視頻消息、etc

4、接口有不理解的地方，可進(jìn)入開發(fā)-->開發(fā)者工具-->開發(fā)者文檔進(jìn)行查詢

5、接口權(quán)限：訂閱號(hào)主要有基礎(chǔ)支持、接收消息及網(wǎng)頁服務(wù)里面的一些接口

下面我們主要講訂閱號(hào)怎么樣接收消息的案例：

1、需要申請(qǐng)一個(gè)個(gè)人微信訂閱號(hào)
2、url服務(wù)器和服務(wù)器端代碼部署（可以用騰訊云or阿里云服務(wù)器）

1）、AccountsServlet.java類，驗(yàn)證來自微信服務(wù)器和微信服務(wù)器的消息處理

package cn.jon.wechat.servlet; 
 
import java.io.IOException; 
import java.io.PrintWriter; 
 
import javax.servlet.ServletException; 
import javax.servlet.http.HttpServlet; 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 
 
import cn.jon.wechat.service.AccountsService; 
import cn.jon.wechat.utils.SignUtil; 
 
public class AccountsServlet extends HttpServlet { 
 
 public AccountsServlet() { 
 super(); 
 } 
 
 
 public void destroy() { 
 super.destroy(); 
 // Put your code here 
 } 
 /** 
 * 確認(rèn)請(qǐng)求來自于微信服務(wù)器 
 */ 
 
 public void doGet(HttpServletRequest request, HttpServletResponse response) 
  throws ServletException, IOException { 
  System.out.println("接口測(cè)試開始?。。?quot;); 
  //微信加密簽名 
  String signature = request.getParameter("signature"); 
  //時(shí)間戳 
  String timestamp = request.getParameter("timestamp"); 
  //隨機(jī)數(shù) 
  String nonce = request.getParameter("nonce"); 
  //隨機(jī)字符串 
  String echostr = request.getParameter("echostr"); 
  
  PrintWriter out = response.getWriter(); 
  //通過校驗(yàn)signature對(duì)請(qǐng)求進(jìn)行校驗(yàn)，若校驗(yàn)成功則原樣返回echostr，表示接入成功，否則接入失敗 
  if(SignUtil.checkSignature(signature,timestamp,nonce)){ 
  out.print(echostr); 
  } 
  out.close(); 
  out = null; 
//  response.encodeRedirectURL("success.jsp"); 
  
  
 } 
 /** 
 * 處理微信服務(wù)器發(fā)來的消息 
 */ 
 public void doPost(HttpServletRequest request, HttpServletResponse response) 
  throws ServletException, IOException { 
 //消息的接受、處理、響應(yīng) 
 request.setCharacterEncoding("utf-8"); 
 response.setCharacterEncoding("utf-8"); 
 //調(diào)用核心業(yè)務(wù)類型接受消息、處理消息 
 String respMessage = AccountsService.processRequest(request); 
  
 //響應(yīng)消息 
 PrintWriter out = response.getWriter(); 
 out.print(respMessage); 
 out.close(); 
  
  
 } 
 
 public void init() throws ServletException { 
 // Put your code here 
 } 
 
}

2）、SignUtil.java類，請(qǐng)求校驗(yàn)工具類，token需要和微信中填寫的token一致

package cn.jon.wechat.utils; 
 
import java.security.MessageDigest; 
import java.security.NoSuchAlgorithmException; 
import java.util.Arrays; 
import java.util.Iterator; 
import java.util.Map; 
import java.util.Set; 
import java.util.concurrent.ConcurrentHashMap; 
 
/** 
 * 請(qǐng)求校驗(yàn)工具類 
 * @author jon 
 */ 
public class SignUtil { 
 //與微信配置中的的Token一致 
 private static String token = ""; 
 
 public static boolean checkSignature(String signature, String timestamp, 
  String nonce) { 
 String[] arra = new String[]{token,timestamp,nonce}; 
 //將signature,timestamp,nonce組成數(shù)組進(jìn)行字典排序 
 Arrays.sort(arra); 
 StringBuilder sb = new StringBuilder(); 
 for(int i=0;i<arra.length;i++){ 
  sb.append(arra[i]); 
 } 
 MessageDigest md = null; 
 String stnStr = null; 
 try { 
  md = MessageDigest.getInstance("SHA-1"); 
  byte[] digest = md.digest(sb.toString().getBytes()); 
  stnStr = byteToStr(digest); 
 } catch (NoSuchAlgorithmException e) { 
  // TODO Auto-generated catch block 
  e.printStackTrace(); 
 } 
 //釋放內(nèi)存 
 sb = null; 
 //將sha1加密后的字符串與signature對(duì)比，標(biāo)識(shí)該請(qǐng)求來源于微信 
 return stnStr!=null?stnStr.equals(signature.toUpperCase()):false; 
 } 
 /** 
 * 將字節(jié)數(shù)組轉(zhuǎn)換成十六進(jìn)制字符串 
 * @param digestArra 
 * @return 
 */ 
 private static String byteToStr(byte[] digestArra) { 
 // TODO Auto-generated method stub 
 String digestStr = ""; 
 for(int i=0;i<digestArra.length;i++){ 
  digestStr += byteToHexStr(digestArra[i]); 
 } 
 return digestStr; 
 } 
 /** 
 * 將字節(jié)轉(zhuǎn)換成為十六進(jìn)制字符串 
 */ 
 private static String byteToHexStr(byte dByte) { 
 // TODO Auto-generated method stub 
 char[] Digit = {&#39;0&#39;,&#39;1&#39;,&#39;2&#39;,&#39;3&#39;,&#39;4&#39;,&#39;5&#39;,&#39;6&#39;,&#39;7&#39;,&#39;8&#39;,&#39;9&#39;,&#39;A&#39;,&#39;B&#39;,&#39;C&#39;,&#39;D&#39;,&#39;E&#39;,&#39;F&#39;}; 
 char[] tmpArr = new char[2]; 
 tmpArr[0] = Digit[(dByte>>>4)&0X0F]; 
 tmpArr[1] = Digit[dByte&0X0F]; 
 String s = new String(tmpArr); 
 return s; 
 } 
 
 public static void main(String[] args) { 
 /*byte dByte = &#39;A&#39;; 
 System.out.println(byteToHexStr(dByte));*/ 
 Map<String,String> map = new ConcurrentHashMap<String, String>(); 
 map.put("4", "zhangsan"); 
 map.put("100", "lisi"); 
 Set set = map.keySet(); 
 Iterator iter = set.iterator(); 
 while(iter.hasNext()){ 
//  String keyV = (String) iter.next(); 
  String key =(String)iter.next(); 
  System.out.println(map.get(key)); 
//  System.out.println(map.get(iter.next())); 
 } 
 /*for(int i=0;i<map.size();i++){ 
  
 }*/ 
 } 
}

3）、AccountsService.java服務(wù)類，主要是消息的請(qǐng)求和響應(yīng)處理，并且當(dāng)用戶關(guān)注你的公眾號(hào)的時(shí)候，可以設(shè)置默認(rèn)推送消息

package cn.jon.wechat.service; 
 
import java.util.Date; 
import java.util.Map; 
 
import javax.servlet.http.HttpServletRequest; 
 
import cn.jon.wechat.message.req.ImageMessage; 
import cn.jon.wechat.message.req.LinkMessage; 
import cn.jon.wechat.message.req.LocationMessage; 
import cn.jon.wechat.message.req.VideoMessage; 
import cn.jon.wechat.message.req.VoiceMessage; 
import cn.jon.wechat.message.resp.TextMessage; 
import cn.jon.wechat.utils.MessageUtil; 
 
/** 
 * 解耦，使控制層與業(yè)務(wù)邏輯層分離開來，主要處理請(qǐng)求，響應(yīng) 
 * @author jon 
 */ 
public class AccountsService { 
 
 public static String processRequest(HttpServletRequest request) { 
 String respMessage = null; 
 //默認(rèn)返回的文本消息內(nèi)容 
 String respContent = "請(qǐng)求處理異常，請(qǐng)稍后嘗試！"; 
 try { 
  //xml請(qǐng)求解析 
  Map<String,String> requestMap = MessageUtil.pareXml(request); 
  
  //發(fā)送方賬號(hào)（open_id） 
  String fromUserName = requestMap.get("FromUserName"); 
  //公眾賬號(hào) 
  String toUserName = requestMap.get("ToUserName"); 
  //消息類型 
  String msgType = requestMap.get("MsgType"); 
  
  //默認(rèn)回復(fù)此文本消息 
  TextMessage defaultTextMessage = new TextMessage(); 
  defaultTextMessage.setToUserName(fromUserName); 
  defaultTextMessage.setFromUserName(toUserName); 
  defaultTextMessage.setCreateTime(new Date().getTime()); 
  defaultTextMessage.setMsgType(MessageUtil.MESSSAGE_TYPE_TEXT); 
  defaultTextMessage.setFuncFlag(0); 
  // 由于href屬性值必須用雙引號(hào)引起，這與字符串本身的雙引號(hào)沖突，所以要轉(zhuǎn)義 
  defaultTextMessage.setContent("歡迎訪問<a href=\"http://blog.csdn.net/j086924\">jon的博客</a>!"); 
//  defaultTextMessage.setContent(getMainMenu()); 
  // 將文本消息對(duì)象轉(zhuǎn)換成xml字符串 
  respMessage = MessageUtil.textMessageToXml(defaultTextMessage); 
 
  
  //文本消息 
  if(msgType.equals(MessageUtil.MESSSAGE_TYPE_TEXT)){ 
  //respContent = "Hi,您發(fā)送的是文本消息！"; 
  //回復(fù)文本消息 
  TextMessage textMessage = new TextMessage(); 
//  textMessage.setToUserName(toUserName); 
//  textMessage.setFromUserName(fromUserName); 
  //這里需要注意，否則無法回復(fù)消息給用戶了 
  textMessage.setToUserName(fromUserName); 
  textMessage.setFromUserName(toUserName); 
  textMessage.setCreateTime(new Date().getTime()); 
  textMessage.setMsgType(MessageUtil.MESSSAGE_TYPE_TEXT); 
  textMessage.setFuncFlag(0); 
  respContent = "Hi，你發(fā)的消息是："+requestMap.get("Content"); 
  textMessage.setContent(respContent); 
  respMessage = MessageUtil.textMessageToXml(textMessage); 
  } 
  //圖片消息 
  else if(msgType.equals(MessageUtil.MESSSAGE_TYPE_IMAGE)){ 
   
  ImageMessage imageMessage=new ImageMessage(); 
  imageMessage.setToUserName(fromUserName); 
  imageMessage.setFromUserName(toUserName); 
  imageMessage.setCreateTime(new Date().getTime()); 
  imageMessage.setMsgType(MessageUtil.MESSSAGE_TYPE_IMAGE); 
  //respContent=requestMap.get("PicUrl"); 
  imageMessage.setPicUrl("http://img24.pplive.cn//2013//07//24//12103112092_230X306.jpg"); 
  respMessage = MessageUtil.imageMessageToXml(imageMessage); 
  } 
  //地理位置 
  else if(msgType.equals(MessageUtil.MESSSAGE_TYPE_LOCATION)){ 
  LocationMessage locationMessage=new LocationMessage(); 
  locationMessage.setToUserName(fromUserName); 
  locationMessage.setFromUserName(toUserName); 
  locationMessage.setCreateTime(new Date().getTime()); 
  locationMessage.setMsgType(MessageUtil.MESSSAGE_TYPE_LOCATION); 
  locationMessage.setLocation_X(requestMap.get("Location_X")); 
  locationMessage.setLocation_Y(requestMap.get("Location_Y")); 
  locationMessage.setScale(requestMap.get("Scale")); 
  locationMessage.setLabel(requestMap.get("Label")); 
  respMessage = MessageUtil.locationMessageToXml(locationMessage); 
   
  } 
  
  //視頻消息 
  else if(msgType.equals(MessageUtil.MESSSAGE_TYPE_VIDEO)){ 
  VideoMessage videoMessage=new VideoMessage(); 
  videoMessage.setToUserName(fromUserName); 
  videoMessage.setFromUserName(toUserName); 
  videoMessage.setCreateTime(new Date().getTime()); 
  videoMessage.setMsgType(MessageUtil.MESSSAGE_TYPE_VIDEO); 
  videoMessage.setMediaId(requestMap.get("MediaId")); 
  videoMessage.setThumbMediaId(requestMap.get("ThumbMediaId")); 
  respMessage = MessageUtil.videoMessageToXml(videoMessage); 
   
  } 
  //鏈接消息 
  else if(msgType.equals(MessageUtil.MESSSAGE_TYPE_LINK)){ 
  LinkMessage linkMessage=new LinkMessage(); 
  linkMessage.setToUserName(fromUserName); 
  linkMessage.setFromUserName(toUserName); 
  linkMessage.setCreateTime(new Date().getTime()); 
  linkMessage.setMsgType(MessageUtil.MESSSAGE_TYPE_LINK); 
  linkMessage.setTitle(requestMap.get("Title")); 
  linkMessage.setDescription(requestMap.get("Description")); 
  linkMessage.setUrl(requestMap.get("Url")); 
  respMessage = MessageUtil.linkMessageToXml(linkMessage); 
  } 
  //語音消息 
  else if(msgType.equals(MessageUtil.MESSSAGE_TYPE_VOICE)){ 
  VoiceMessage voiceMessage=new VoiceMessage(); 
  voiceMessage.setToUserName(fromUserName); 
  voiceMessage.setFromUserName(toUserName); 
  voiceMessage.setCreateTime(new Date().getTime()); 
  voiceMessage.setMsgType(MessageUtil.MESSSAGE_TYPE_VOICE); 
  voiceMessage.setMediaId(requestMap.get("MediaId")); 
  voiceMessage.setFormat(requestMap.get("Format")); 
  respMessage = MessageUtil.voiceMessageToXml(voiceMessage); 
  } 
  //事件推送 
  else if(msgType.equals(MessageUtil.MESSSAGE_TYPE_EVENT)){ 
  //事件類型 
  String eventType = requestMap.get("Event"); 
  //訂閱 
  if(eventType.equals(MessageUtil.EVENT_TYPE_SUBSCRIBE)){ 
   respContent = "謝謝關(guān)注！"; 
  } 
  //取消訂閱 
  else if(eventType.equals(MessageUtil.EVENT_TYPE_UNSUBSCRIBE)){ 
   // 
   System.out.println("取消訂閱"); 
   
  } 
  else if(eventType.equals(MessageUtil.EVENT_TYPE_CLICK)){ 
   //自定義菜單消息處理 
   System.out.println("自定義菜單消息處理"); 
  } 
  } 
  
 } catch (Exception e) { 
  // TODO Auto-generated catch block 
  e.printStackTrace(); 
 } 
 return respMessage; 
 } 
 
 public static String getMainMenu() 
 { 
 StringBuffer buffer =new StringBuffer(); 
 buffer.append("您好，我是jon,請(qǐng)回復(fù)數(shù)字選擇服務(wù):").append("\n"); 
 buffer.append("1、我的博客").append("\n"); 
 buffer.append("2、 歌曲點(diǎn)播").append("\n"); 
 buffer.append("3、 經(jīng)典游戲").append("\n"); 
 buffer.append("4 、聊天打牌").append("\n\n"); 
 buffer.append("回復(fù)"+"0"+"顯示幫助菜單"); 
 return buffer.toString(); 
  
 } 
}

4）、MessageUtil.java幫助類，包括常量的定義和xml消息轉(zhuǎn)換和處理

package cn.jon.wechat.utils; 
 
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 org.dom4j.Document; 
import org.dom4j.Element; 
import org.dom4j.io.SAXReader; 
 
import cn.jon.wechat.message.req.ImageMessage; 
import cn.jon.wechat.message.req.LinkMessage; 
import cn.jon.wechat.message.req.LocationMessage; 
import cn.jon.wechat.message.req.VideoMessage; 
import cn.jon.wechat.message.req.VoiceMessage; 
import cn.jon.wechat.message.resp.Article; 
import cn.jon.wechat.message.resp.MusicMessage; 
import cn.jon.wechat.message.resp.NewsMessage; 
import cn.jon.wechat.message.resp.TextMessage; 
 
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; 
 
/** 
 * 各種消息的處理類 
 * @author jon 
 */ 
 
public class MessageUtil { 
 /** 
 * 文本類型 
 */ 
 public static final String MESSSAGE_TYPE_TEXT = "text"; 
 /** 
 * 音樂類型 
 */ 
 public static final String MESSSAGE_TYPE_MUSIC = "music"; 
 /** 
 * 圖文類型 
 */ 
 public static final String MESSSAGE_TYPE_NEWS = "news"; 
 
 /** 
 * 視頻類型 
 */ 
 public static final String MESSSAGE_TYPE_VIDEO = "video"; 
 /** 
 * 圖片類型 
 */ 
 public static final String MESSSAGE_TYPE_IMAGE = "image"; 
 /** 
 * 鏈接類型 
 */ 
 public static final String MESSSAGE_TYPE_LINK = "link"; 
 /** 
 * 地理位置類型 
 */ 
 public static final String MESSSAGE_TYPE_LOCATION = "location"; 
 /** 
 * 音頻類型 
 */ 
 public static final String MESSSAGE_TYPE_VOICE = "voice"; 
 /** 
 * 推送類型 
 */ 
 public static final String MESSSAGE_TYPE_EVENT = "event"; 
 /** 
 * 事件類型：subscribe（訂閱） 
 */ 
 public static final String EVENT_TYPE_SUBSCRIBE = "subscribe"; 
 /** 
 * 事件類型：unsubscribe（取消訂閱） 
 */ 
 public static final String EVENT_TYPE_UNSUBSCRIBE = "unsubscribe"; 
 /** 
 * 事件類型：click（自定義菜單點(diǎn)擊事件） 
 */ 
 public static final String EVENT_TYPE_CLICK= "CLICK"; 
 
 /** 
 * 解析微信發(fā)來的請(qǐng)求 XML 
 */ 
 @SuppressWarnings("unchecked") 
 public static Map<String,String> pareXml(HttpServletRequest request) throws Exception { 
  
 //將解析的結(jié)果存儲(chǔ)在HashMap中 
 Map<String,String> reqMap = new HashMap<String, String>(); 
  
 //從request中取得輸入流 
 InputStream inputStream = request.getInputStream(); 
 //讀取輸入流 
 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節(jié)點(diǎn) 
 List<Element> elementList = root.elements(); 
 //遍歷所有的子節(jié)點(diǎn)取得信息類容 
 for(Element elem:elementList){ 
  reqMap.put(elem.getName(),elem.getText()); 
 } 
 //釋放資源 
 inputStream.close(); 
 inputStream = null; 
  
 return reqMap; 
 } 
 /** 
 * 響應(yīng)消息轉(zhuǎn)換成xml返回 
 * 文本對(duì)象轉(zhuǎn)換成xml 
 */ 
 public static String textMessageToXml(TextMessage textMessage) { 
 xstream.alias("xml", textMessage.getClass()); 
 return xstream.toXML(textMessage); 
 } 
 /** 
 * 語音對(duì)象的轉(zhuǎn)換成xml 
 * 
 */ 
 public static String voiceMessageToXml(VoiceMessage voiceMessage) { 
 xstream.alias("xml", voiceMessage.getClass()); 
 return xstream.toXML(voiceMessage); 
 } 
 
 /** 
 * 視頻對(duì)象的轉(zhuǎn)換成xml 
 * 
 */ 
 public static String videoMessageToXml(VideoMessage videoMessage) { 
 xstream.alias("xml", videoMessage.getClass()); 
 return xstream.toXML(videoMessage); 
 } 
 
 /** 
 * 音樂對(duì)象的轉(zhuǎn)換成xml 
 * 
 */ 
 public static String musicMessageToXml(MusicMessage musicMessage) { 
 xstream.alias("xml", musicMessage.getClass()); 
 return xstream.toXML(musicMessage); 
 } 
 /** 
 * 圖文對(duì)象轉(zhuǎn)換成xml 
 * 
 */ 
 public static String newsMessageToXml(NewsMessage newsMessage) { 
 xstream.alias("xml", newsMessage.getClass()); 
 xstream.alias("item", new Article().getClass()); 
 return xstream.toXML(newsMessage); 
 } 
 
 /** 
 * 圖片對(duì)象轉(zhuǎn)換成xml 
 * 
 */ 
 
 public static String imageMessageToXml(ImageMessage imageMessage) 
 { 
 xstream.alias("xml",imageMessage.getClass()); 
 return xstream.toXML(imageMessage); 
  
 } 
 
 /** 
 * 鏈接對(duì)象轉(zhuǎn)換成xml 
 * 
 */ 
 
 public static String linkMessageToXml(LinkMessage linkMessage) 
 { 
 xstream.alias("xml",linkMessage.getClass()); 
 return xstream.toXML(linkMessage); 
  
 } 
 
 /** 
 * 地理位置對(duì)象轉(zhuǎn)換成xml 
 * 
 */ 
 
 public static String locationMessageToXml(LocationMessage locationMessage) 
 { 
 xstream.alias("xml",locationMessage.getClass()); 
 return xstream.toXML(locationMessage); 
  
 } 
 
 /** 
 * 拓展xstream，使得支持CDATA塊 
 * 
 */ 
 private static XStream xstream = new XStream(new XppDriver(){ 
 public HierarchicalStreamWriter createWriter(Writer out){ 
  return new PrettyPrintWriter(out){ 
  //對(duì)所有的xml節(jié)點(diǎn)的轉(zhuǎn)換都增加CDATA標(biāo)記 
  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("<![CDATA["); 
   writer.write(text); 
   writer.write("]]>"); 
   }else{ 
   writer.write(text); 
   } 
  } 
  }; 
 } 
 }); 
 
}

5）、BaseMessage.java消息基類(包括：開發(fā)者微信號(hào)、用戶賬戶、創(chuàng)建時(shí)間、消息類型、消息ID變量)，文本、視頻、圖片消息都會(huì)繼承此基類，在此基礎(chǔ)上擴(kuò)展自己的變量，可根據(jù)開發(fā)者文檔中的各種消息屬性進(jìn)行定義

package cn.jon.wechat.message.req; 
/** 
 * 消息基類 （普通用戶-公眾號(hào)） 
 * @author jon 
 */ 
public class BaseMessage { 
 
 //開發(fā)者微信號(hào) 
 private String ToUserName; 
 //發(fā)送方賬號(hào)（一個(gè)openId） 
 private String FromUserName; 
 //消息創(chuàng)建時(shí)間（整型） 
 private long CreateTime; 
 //消息類型（text/image/location/link...） 
 private String MsgType; 
 //消息id 64位整型 
 private String MsgId; 
 
 public BaseMessage() { 
 super(); 
 // TODO Auto-generated constructor stub 
 } 
 
 public BaseMessage(String toUserName, String fromUserName, long createTime, 
  String msgType, String msgId) { 
 super(); 
 ToUserName = toUserName; 
 FromUserName = fromUserName; 
 CreateTime = createTime; 
 MsgType = msgType; 
 MsgId = 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 String getMsgId() { 
 return MsgId; 
 } 
 
 public void setMsgId(String msgId) { 
 MsgId = msgId; 
 } 
}

6）、TextMessage.java文本消息，繼承自5中基類，擴(kuò)展內(nèi)容屬性

package cn.jon.wechat.message.req; 
/** 
 * 文本消息 
 * @author jon 
 */ 
public class TextMessage extends BaseMessage{ 
 //消息內(nèi)容 
 private String content; 
 
 public String getContent() { 
 return content; 
 } 
 
 public void setContent(String content) { 
 this.content = content; 
 } 
 
}

7）、ImageMessage.java圖片消息

package cn.jon.wechat.message.req; 
/** 
 * 圖片消息 
 * @author jon 
 */ 
public class ImageMessage extends BaseMessage{ 
 //圖片鏈接 
 private String PicUrl; 
 
 public String getPicUrl() { 
 return PicUrl; 
 } 
 
 public void setPicUrl(String picUrl) { 
 PicUrl = picUrl; 
 } 
}

8）、VideoMessage.java視頻消息

package cn.jon.wechat.message.req; 
 
public class VideoMessage extends BaseMessage { 
 
 private String mediaId; 
 private String thumbMediaId; 
 public String getMediaId() { 
 return mediaId; 
 } 
 public void setMediaId(String mediaId) { 
 this.mediaId = mediaId; 
 } 
 public String getThumbMediaId() { 
 return thumbMediaId; 
 } 
 public void setThumbMediaId(String thumbMediaId) { 
 this.thumbMediaId = thumbMediaId; 
 } 
 
}

以上是利用java開發(fā)微信公眾號(hào)案例代碼的詳細(xì)內(nèi)容。更多信息請(qǐng)關(guān)注PHP中文網(wǎng)其他相關(guān)文章！