微信公众号开发消息推送以及图文推送

今天给大家分享的关注公众号自动推送图文消息，以及做一个超牛逼的机器人。

先看看效果。

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发错图了。。。这是我昨天开发的一款机器人chu了会骂人啥都不会了。我今天将它词库进行了更新和升级，接入了http://www.itpk.cn/   机器人第三词库
先给你截图：机器人的配置：

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词库信息。可以自定义词库信息

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来看看进一步效果
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是不是乖巧多了哈哈哈。想不想把这个乖巧机器人带走。。。。来吧 给你们秀一波操作。看好了xiongder们别眨眼我要开始变形了。。。
不好意思忘了一件灰常重要的事情，忘了给你们看官方API文档了

点我快速进入官方API文档，反正我最讨厌看这玩意。。。。

第一步登录微信公众平台现在开发-基本配置然后服务器配置。如下图

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解释含义：
服务器地址(URL)：服务器接收消息的的地址也就自己后台处理逻辑的地方
Toke:需要配置到代码中。可以理解为密码 
消息加解密密钥(EncodingAESKey) 就是防止别人截取你的消息，可以选择加密 我用的明文模式

来吧走个流程图吧。哈哈哈哈。。

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直接上代码。我代码上的注释很清晰。我就不多解释了。有什么不明白随时联系我。。

/*** 微信消息推送的验证。* * @param request* @param response*/@RequestMapping(value = "sendMsg", method = RequestMethod.GET, produces = "text/html;charset=UTF-8")public void sendMsgget(HttpServletRequest request, HttpServletResponse response) { // 微信加密签名String signature = request.getParameter("signature");// 时间戳String timestamp = request.getParameter("timestamp");// 随机数String nonce = request.getParameter("nonce");// 随机字符串String echostr = request.getParameter("echostr");PrintWriter out = null;try {out = response.getWriter();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}// 通过检验signature对请求进行校验，若校验成功则原样返回echostr，表示接入成功，否则接入失败if (SignUtil.checkSignature(signature, timestamp, nonce)) {out.print(echostr);}out.close();out = null;}package cn.cnbuilder.utils;import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;public class SignUtil {// 与接口配置信息中的Token要一致 需要登录微信公众号private static String token = "xxxxxxxxxxx";/*** 验证签名* * @param signature* @param timestamp* @param nonce* @return*/public static boolean checkSignature(String signature, String timestamp, String nonce) {String[] arr = new String[] { token, timestamp, nonce };// 将token、timestamp、nonce三个参数进行字典序排序Arrays.sort(arr);StringBuilder content = new StringBuilder();for (int i = 0; i < arr.length; i++) {content.append(arr[i]);}MessageDigest md = null;String tmpStr = null;try {md = MessageDigest.getInstance("SHA-1");// 将三个参数字符串拼接成一个字符串进行sha1加密byte[] digest = md.digest(content.toString().getBytes());tmpStr = byteToStr(digest);} catch (NoSuchAlgorithmException e) {e.printStackTrace();}content = null;// 将sha1加密后的字符串可与signature对比，标识该请求来源于微信return tmpStr != null ? tmpStr.equals(signature.toUpperCase()) : false;}/*** 将字节数组转换为十六进制字符串* * @param byteArray* @return*/static String byteToStr(byte[] byteArray) {String strDigest = "";for (int i = 0; i < byteArray.length; i++) {strDigest += byteToHexStr(byteArray[i]);}return strDigest;}/*** 将字节转换为十六进制字符串* * @param mByte* @return*/private static String byteToHexStr(byte mByte) {char[] Digit = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };char[] tempArr = new char[2];tempArr[0] = Digit[(mByte >>> 4) & 0X0F];tempArr[1] = Digit[mByte & 0X0F];String s = new String(tempArr);return s;}
}

验签验完了之后，我们开始接受消息然后处理逻辑。
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/*** 处理业务逻辑* * @param request* @param response*/@RequestMapping(value = "sendMsg", method = RequestMethod.POST, produces = "text/html;charset=UTF-8")public void sendMsgPost(HttpServletRequest request, HttpServletResponse response) { // 调用核心业务类接收消息、处理消息try {String respMessage = processRequest(request);System.err.println(respMessage);// 我们这里处理的是utf-8 微信要的是ios8859-1这是坑啊。。。。。byte[] uMessage = respMessage.getBytes("UTF-8");// 编码:字符串变成字节数组 输入 参数（编码表）String iMessage = new String(uMessage, "ISO8859-1");// 解码:字节数组变成字符串,String参数(数组,编码表) 输出if (respMessage != null) {// 响应消息PrintWriter out = response.getWriter();out.print(iMessage);out.close();}} catch (Exception e) {// 也许大概不会走到这里除非异常了。。。。。。}}public String processRequest(HttpServletRequest request) {String respMessage = null;try {// xml请求解析Map<String, String> requestMap = 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");TextMessage textMessage = new TextMessage();textMessage.setToUserName(fromUserName);textMessage.setFromUserName(toUserName);textMessage.setCreateTime(new Date().getTime());textMessage.setMsgType(MessageUtil.RESP_MESSAGE_TYPE_TEXT);// 文本消息if (msgType.equals(MessageUtil.REQ_MESSAGE_TYPE_TEXT)) {// 接收用户发送的文本消息内容String content = requestMap.get("Content");System.err.println(content);// 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);List<Article> articleList = new ArrayList<Article>();// 单图文消息if ("yifan".equals(content)) {Article article = new Article();article.setTitle("欢迎关注KingYiFan's Blog");article.setDescription("点击进入详情");article.setPicUrl("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1521808337402&di=515fdc032be051f5085c3f9c03af5646&imgtype=0&src=http%3A%2F%2Fwww.vvfeng.com%2Fdata%2Fupload%2Fueditor%2F20170327%2F58d8c88855d9f.jpg");article.setUrl("http://cnbuilder.cn/");articleList.add(article);// 设置图文消息个数newsMessage.setArticleCount(articleList.size());// 设置图文消息包含的图文集合newsMessage.setArticles(articleList);// 将图文消息对象转换成xml字符串respMessage = MessageUtil.newsMessageToXml(newsMessage);}else {// 机器人apiString jiqiren = HttpClientUtils.sendGetUtF8("http://i.itpk.cn/api.php","limit=2&api_key=xxxxx&api_secret=xxxx&type=json&question="+ content);textMessage.setContent(jiqiren);respMessage = MessageUtil.textMessageToXml(textMessage);}// 事件处理开始} else if (msgType.equals(MessageUtil.REQ_MESSAGE_TYPE_EVENT)) {NewsMessage newsMessage = new NewsMessage();newsMessage.setToUserName(fromUserName);newsMessage.setFromUserName(toUserName);newsMessage.setCreateTime(new Date().getTime());newsMessage.setMsgType(MessageUtil.RESP_MESSAGE_TYPE_NEWS);// 事件类型String eventType = requestMap.get("Event");List<Article> articleList = new ArrayList<Article>();if (eventType.equals(MessageUtil.EVENT_TYPE_SUBSCRIBE)) {Article article = new Article();article.setTitle("欢迎关注KingYiFan's Blog");article.setDescription("点击进入详情");article.setPicUrl("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1521808337402&di=515fdc032be051f5085c3f9c03af5646&imgtype=0&src=http%3A%2F%2Fwww.vvfeng.com%2Fdata%2Fupload%2Fueditor%2F20170327%2F58d8c88855d9f.jpg");article.setUrl("http://cnbuilder.cn/");articleList.add(article);// 设置图文消息个数newsMessage.setArticleCount(articleList.size());// 设置图文消息包含的图文集合newsMessage.setArticles(articleList);// 将图文消息对象转换成xml字符串respMessage = MessageUtil.newsMessageToXml(newsMessage);try {// 保存用户信息wxMsgService.savaWxInfo(fromUserName);} catch (Exception e) {return respMessage;}}} else if (msgType.equals(MessageUtil.EVENT_TYPE_UNSUBSCRIBE)) {// 取消关注,用户接受不到我们发送的消息了，可以在这里记录用户取消关注的日志信息}} catch (Exception e) {e.printStackTrace();}return respMessage;}package cn.cnbuilder.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 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;import cn.cnbuilder.entity.wx.sendMsg.Article;
import cn.cnbuilder.entity.wx.sendMsg.MusicMessage;
import cn.cnbuilder.entity.wx.sendMsg.NewsMessage;
import cn.cnbuilder.entity.wx.sendMsg.TextMessage;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)*/public static final String EVENT_TYPE_SUBSCRIBE = "subscribe";/*** 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";/*** 解析微信发来的请求（XML）* * @param request* @return* @throws Exception*/@SuppressWarnings("unchecked")public static Map<String, String> parseXml(HttpServletRequest request) throws Exception {// 将解析结果存储在HashMap中Map<String, String> map = new HashMap<String, String>();// 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<Element> 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);}/*** 音乐消息对象转换成xml* * @param musicMessage 音乐消息对象* @return xml*/public static String musicMessageToXml(MusicMessage musicMessage) {xstream.alias("xml", musicMessage.getClass());return xstream.toXML(musicMessage);}/*** 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("<![CDATA[");writer.write(text);writer.write("]]>");} else {writer.write(text);}}};}});
}package cn.cnbuilder.entity.wx.sendMsg;public class TextMessage extends BaseMessage {// 消息内容private String Content;public String getContent() {return Content;}public void setContent(String content) {Content = content;}
}package cn.cnbuilder.entity.wx.sendMsg;import java.util.List;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;  }  
}package cn.cnbuilder.entity.wx.sendMsg;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;}}package cn.cnbuilder.entity.wx.sendMsg;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;}
}
package cn.cnbuilder.utils;import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
import java.util.List;
import java.util.Map;import org.apache.http.HttpResponse;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;import net.sf.json.JSONObject;public class HttpClientUtils {/*** 向指定URL发送GET方法的请求* * @param url   发送请求的URL* @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。* @return URL 所代表远程资源的响应结果*/public static String sendGet(String url, String param) {String result = "";BufferedReader in = null;try {String urlNameString = url + "?" + param;URL realUrl = new URL(urlNameString);// 打开和URL之间的连接URLConnection connection = realUrl.openConnection();// 设置通用的请求属性connection.setRequestProperty("accept", "*/*");connection.setRequestProperty("connection", "Keep-Alive");// 建立实际的连接connection.connect();// 获取所有响应头字段Map<String, List<String>> map = connection.getHeaderFields();// 遍历所有的响应头字段for (String key : map.keySet()) {System.out.println(key + "--->" + map.get(key));}// 定义 BufferedReader输入流来读取URL的响应in = new BufferedReader(new InputStreamReader(connection.getInputStream(), "gbk"));String line;while ((line = in.readLine()) != null) {result += line;}} catch (Exception e) {System.out.println("发送GET请求出现异常！" + e);e.printStackTrace();}// 使用finally块来关闭输入流finally {try {if (in != null) {in.close();}} catch (Exception e2) {e2.printStackTrace();}}return result;}/*** 向指定URL发送GET方法的请求* * @param url   发送请求的URL* @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。* @return URL 所代表远程资源的响应结果*/public static String sendGetUtF8(String url, String param) {String result = "";BufferedReader in = null;try {String urlNameString = url + "?" + param;URL realUrl = new URL(urlNameString);// 打开和URL之间的连接URLConnection connection = realUrl.openConnection();// 设置通用的请求属性connection.setRequestProperty("accept", "*/*");connection.setRequestProperty("connection", "Keep-Alive");// 建立实际的连接connection.connect();// 获取所有响应头字段Map<String, List<String>> map = connection.getHeaderFields();// 遍历所有的响应头字段for (String key : map.keySet()) {System.out.println(key + "--->" + map.get(key));}// 定义 BufferedReader输入流来读取URL的响应in = new BufferedReader(new InputStreamReader(connection.getInputStream()));String line;while ((line = in.readLine()) != null) {result += line;}} catch (Exception e) {System.out.println("发送GET请求出现异常！" + e);e.printStackTrace();}// 使用finally块来关闭输入流finally {try {if (in != null) {in.close();}} catch (Exception e2) {e2.printStackTrace();}}return result;}/*** 向指定 URL 发送POST方法的请求* * @param url   发送请求的 URL* @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。* @return 所代表远程资源的响应结果*/public static String sendPost(String url, String param) {PrintWriter out = null;BufferedReader in = null;String result = "";try {URL realUrl = new URL(url);// 打开和URL之间的连接URLConnection conn = realUrl.openConnection();// 设置通用的请求属性conn.setRequestProperty("accept", "*/*");conn.setRequestProperty("connection", "Keep-Alive");conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");// 发送POST请求必须设置如下两行conn.setDoOutput(true);conn.setDoInput(true);// 获取URLConnection对象对应的输出流out = new PrintWriter(conn.getOutputStream());// 发送请求参数out.print(param);// flush输出流的缓冲out.flush();// 定义BufferedReader输入流来读取URL的响应in = new BufferedReader(new InputStreamReader(conn.getInputStream()));String line;while ((line = in.readLine()) != null) {result += line;}} catch (Exception e) {System.out.println("发送 POST 请求出现异常！" + e);e.printStackTrace();}// 使用finally块来关闭输出流、输入流finally {try {if (out != null) {out.close();}if (in != null) {in.close();}} catch (IOException ex) {ex.printStackTrace();}}return result;}public static String doPostForJson(String url, String jsonParams) {CloseableHttpClient httpClient = HttpClients.createDefault();HttpPost httpPost = new HttpPost(url);RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(180 * 1000).setConnectionRequestTimeout(180 * 1000).setSocketTimeout(180 * 1000).setRedirectsEnabled(true).build();httpPost.setConfig(requestConfig);httpPost.setHeader("Content-Type", "application/json"); //try {httpPost.setEntity(new StringEntity(jsonParams, ContentType.create("application/json", "utf-8")));System.out.println("request parameters" + EntityUtils.toString(httpPost.getEntity()));HttpResponse response = httpClient.execute(httpPost);String str = EntityUtils.toString(response.getEntity());/** 把json字符串转换成json对象 **/JSONObject fromObject = JSONObject.fromObject(str);return fromObject.toString();} catch (Exception e) {e.printStackTrace();return "KingYiFan温馨提示你：post请求出异常了" + e.getMessage().toString();} finally {if (null != httpClient) {try {httpClient.close();} catch (IOException e) {e.printStackTrace();}}}}}package cn.cnbuilder.entity.wx.sendMsg;public class Music {// 音乐名称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;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 getMusicU
package cn.cnbuilder.entity.wx.sendMsg;public class MusicMessage {// 音乐private Music Music;public Music getMusic() {return Music;}public void setMusic(Music music) {Music = music;}
}
rl() {return MusicUrl;}public void setMusicUrl(String musicUrl) {MusicUrl = musicUrl;}public String getHQMusicUrl() {return HQMusicUrl;}public void setHQMusicUrl(String musicUrl) {HQMusicUrl = musicUrl;}
}package cn.cnbuilder.entity.wx.sendMsg;public class MusicMessage {// 音乐private Music Music;public Music getMusic() {return Music;}public void setMusic(Music music) {Music = music;}
}

这就是微信公众平台消息回复的教程，哪里不懂可以私信我哦！

鼓励作者写出更好的技术文档，就请我喝一瓶哇哈哈哈哈哈哈哈。。
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