java微信自动回复机器人开发（java微信开发学习笔记3）

微信自动回复机器人原理很简单，获取用户发送到后台的数据，然后调用机器人的api进行回复即可。我使用的茉莉机器人，官网地址如下：
http://www.itpk.cn/
茉莉机器人的api：http://www.itpk.cn/robot.php
接口比较简单，看看就会，我直接上源代码
下面代码同样基于之前的微博，需要的可以去看一下：
http://blog.csdn.net/zxxz5201314/article/details/76917107
首先对用户发送的文本进行处理，特殊字段分别处理，同样Post请求：

@SuppressWarnings("rawtypes")
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {// TODO Auto-generated method stubreq.setCharacterEncoding("UTF-8");resp.setCharacterEncoding("UTF-8");PrintWriter writer = resp.getWriter();try {Map<String, String> map = MessageUtil.xmlToMap(req);String toUserName = map.get("ToUserName");String fromUserName = map.get("FromUserName");String msgType = map.get("MsgType");String content = map.get("Content");System.out.println(toUserName+fromUserName+msgType+content);String text = null;if ("text".equals(msgType)) {switch (content) {case "笑话":Map maps1 = (Map)JSON.parse(ITPK.itpk("笑话"));StringBuffer sb1 = new StringBuffer();sb1.append("标题："+maps1.get("title")+"\n");sb1.append("内容："+maps1.get("content"));text = MessageUtil.replyByKeyWord(toUserName, fromUserName, MessageUtil.Message_Text, sb1.toString());break;case "观音灵签":Map maps2 = (Map)JSON.parse(ITPK.itpk("观音灵签"));StringBuffer sb2 = new StringBuffer();sb2.append("您抽取的是第"+maps2.get("number2")+"签\n");sb2.append("签位："+maps2.get("haohua")+"\n");sb2.append("签语："+maps2.get("qianyu")+"\n");sb2.append("诗意："+maps2.get("shiyi")+"\n");sb2.append("解签："+maps2.get("jieqian"));text = MessageUtil.replyByKeyWord(toUserName, fromUserName, MessageUtil.Message_Text, sb2.toString());break;case "月老灵签":Map maps3 = (Map)JSON.parse(ITPK.itpk("月老灵签"));StringBuffer sb3 = new StringBuffer();sb3.append("您抽取的是第"+maps3.get("number2")+"签\n");sb3.append("签位："+maps3.get("haohua")+"\n");sb3.append("签语："+maps3.get("shiyi")+"\n");sb3.append("解签："+maps3.get("jieqian"));text = MessageUtil.replyByKeyWord(toUserName, fromUserName, MessageUtil.Message_Text, sb3.toString());break;case "财神爷灵签":Map maps4 = (Map)JSON.parse(ITPK.itpk("财神爷灵签"));StringBuffer sb4 = new StringBuffer();sb4.append("您抽取的是第"+maps4.get("number2")+"签\n");sb4.append("签语："+maps4.get("qianyu")+"\n");sb4.append("注释："+maps4.get("zhushi")+"\n");sb4.append("解签："+maps4.get("jieqian")+"\n");sb4.append("解说："+maps4.get("jieshuo")+"\n");sb4.append("婚姻："+maps4.get("hunyin")+"\n");sb4.append("事业："+maps4.get("shiye")+"\n");sb4.append("求财："+maps4.get("qiucai"));text = MessageUtil.replyByKeyWord(toUserName, fromUserName, MessageUtil.Message_Text, sb4.toString());break;case "指令":text = MessageUtil.replyByKeyWord(toUserName, fromUserName, MessageUtil.Message_Text, MessageUtil.mainMenu());break;default:text = MessageUtil.replyByKeyWord(toUserName, fromUserName, MessageUtil.Message_Text, ITPK.itpk(content));break;}}else if (MessageUtil.Message_Event.equals(msgType)) {if ("subscribe".equals(map.get("Event"))) {text = MessageUtil.replyByKeyWord(toUserName, fromUserName, MessageUtil.Message_Text, MessageUtil.mainMenu());}}System.out.println(text);writer.print(text);} catch (DocumentException e) {// TODO Auto-generated catch blocke.printStackTrace();}finally {writer.close();}
}

茉莉机器人url组装类：

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;public class ITPK {public static String api_key = "api_key";public static String api_secret = "api_secret";public static String itpk(String path){try {path = URLEncoder.encode(path, "utf-8");} catch (UnsupportedEncodingException e1) {// TODO Auto-generated catch blocke1.printStackTrace();}String url = "http://i.itpk.cn/api.php?question="+path+"&api_key="+api_key+"&api_secret="+api_secret;return LordJson.loadJSON(url);}
}

json处理类：

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;public class LordJson {public static String loadJSON(String url) {System.out.println(url);StringBuilder json = new StringBuilder();try {URL oracle = new URL(url);URLConnection yc = oracle.openConnection();BufferedReader in = new BufferedReader(new InputStreamReader(yc.getInputStream(),"utf-8"));//防止乱码String inputLine = null;while ((inputLine = in.readLine()) != null) {json.append(inputLine);}in.close();} catch (MalformedURLException e) {} catch (IOException e) {}return json.toString();}
}

MessageUtil类：

public class MessageUtil {public static String Message_Text = "text";public static String Message_News = "news";public static String Message_Image = "image";public static String Message_Voice = "voice";public static String Message_Video = "video";public static String Message_ShortVideo = "shortvideo";public static String Message_Location = "location";public static String Message_Link = "link";public static String Message_Event= "event";public static String Message_Event_Sub= "subscribe";/*** xml转map集合* @param request* @return* @throws IOException* @throws DocumentException*/public static Map<String, String> xmlToMap(HttpServletRequest request) throws IOException, DocumentException{Map<String, String> map = new HashMap<String,String>();SAXReader reader = new SAXReader();InputStream is = request.getInputStream();Document document = reader.read(is);Element root = document.getRootElement();List<Element> list = root.elements();for (Element e:list) {map.put(e.getName(), e.getText());}is.close();return map;}/*** 将文本消息转换成xml* @param textMessage* @return*/public static String textMessageToXml(TextMessage textMessage){XStream xStream = new XStream();xStream.alias("xml", textMessage.getClass());return xStream.toXML(textMessage);}/*** 将图片信息转换成xml* @param imageMessage* @return*/public static String imageMessageToXml(ImageMessage imageMessage){XStream xStream = new XStream();xStream.alias("xml", imageMessage.getClass());return xStream.toXML(imageMessage);}/***将图文消息转换成xml * @param newsMessage* @return*/public static String newsMessageToXml(NewsMessage newsMessage){XStream xStream = new XStream();xStream.alias("xml", newsMessage.getClass());xStream.alias("item", new News().getClass());return xStream.toXML(newsMessage);}public static String repluByImage(String toUserName,String fromUserName,String msgType,String mediaId){ImageMessage imageMessage = new ImageMessage();imageMessage.setToUserName(fromUserName);imageMessage.setFromUserName(toUserName);imageMessage.setCreateTime(new Date().getTime());Image image = new Image();image.setMediaId(mediaId);imageMessage.setImage(image);return MessageUtil.imageMessageToXml(imageMessage);}/*** 文本回复* @param toUserName* @param fromUserName* @param msgType* @param content* @return*/public static String replyByKeyWord(String toUserName,String fromUserName,String msgType,String content){TextMessage message = new TextMessage();message.setFromUserName(toUserName);message.setToUserName(fromUserName);message.setMsgType(msgType);message.setCreateTime(new Date().getTime());message.setContent(content);return MessageUtil.textMessageToXml(message);}public static String mainMenu(){StringBuffer sb = new StringBuffer();sb.append("指令:\n");sb.append("地区天气 \n");sb.append("天气\n");sb.append("@tq您的ip地址\n");sb.append("@ip您的ip地址\n");sb.append("ip\n");sb.append("@qq要查询的QQ号码\n");sb.append("@lol英雄联盟大区--角色名称\n");sb.append("@sfz身份证号码\n");sb.append("@sjh手机号码\n");sb.append("@cy四字成语\n");sb.append("笑话\n");sb.append("观音灵签\n");sb.append("月老灵签\n");sb.append("财神爷灵签");return sb.toString();}
}

还有两个实体类：

/*** 信息基础类* @author Administrator**/
public class BaseMessage {private String ToUserName;private String FromUserName;private long CreateTime;private String MsgType;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;}
}

/*** 文本信息类* @author Administrator**/
public class TextMessage extends BaseMessage{private String Content;private long MsgId;public String getContent() {return Content;}public void setContent(String content) {Content = content;}public long getMsgId() {return MsgId;}public void setMsgId(long msgId) {MsgId = msgId;}
}

其中json传唤成map需要一个jar包，下载地址：
http://download.csdn.net/detail/zxxz5201314/9926317

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