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")@Overrideprotected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {    // TODO Auto-generated method stub    req.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 block        e.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 block            e1.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