java开发微信公众号2

接收方消息处理

1.各种消息处理类

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.eastnet.wechat.message.resp.Article;
import com.eastnet.wechat.message.resp.MusicMessage;
import com.eastnet.wechat.message.resp.NewsMessage;
import com.eastnet.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;

/**
 * 各种消息的处理类 
 * @author pengsong
 * @date 2016.01.19
 */

public class MessageUtil {
    /**
     * 返回信息类型：文本
     */
    public static final String  RESP_MESSSAGE_TYPE_TEXT = "text";
    /**
     * 返回信息类型：音乐
     */
    public static final String  RESP_MESSSAGE_TYPE_MUSIC = "music";
    /**
     * 返回信息类型：图文
     */
    public static final String  RESP_MESSSAGE_TYPE_NEWS = "news";
    /**
     * 请求信息类型：文本
     */
    public static final String  REQ_MESSSAGE_TYPE_TEXT = "text";
    /**
     * 请求信息类型：图片
     */
    public static final String  REQ_MESSSAGE_TYPE_IMAGE = "image";
    /**
     * 请求信息类型：链接
     */
    public static final String  REQ_MESSSAGE_TYPE_LINK = "link";
    /**
     * 请求信息类型：地理位置
     */
    public static final String  REQ_MESSSAGE_TYPE_LOCATION = "location";
    /**
     * 请求信息类型：音频
     */
    public static final String  REQ_MESSSAGE_TYPE_VOICE = "voice";
    /**
     * 请求信息类型：推送
     */
    public static final String  REQ_MESSSAGE_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";
    
    /**
     * 事件类型：view（自定义菜单点击事件,返回url）
     */
    public static final String  EVENT_TYPE_VIEW= "VIEW";
    /**
     * 解析微信发来的请求 XML 
     */
    @SuppressWarnings("unchecked")
    public static Map<String,String> pareXml(HttpServletRequest request) throws Exception {
        
        //将解析的结果存储在HashMap中
        Map<String,String> reqMap = 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();
        //遍历所有的子节点取得信息类容
        for(Element elem:elementList){
            reqMap.put(elem.getName(),elem.getText());
        }
        //释放资源
        inputStream.close();
        inputStream = null;
        
        return reqMap;        
    }
    /**
     * 响应消息转换成xml返回
     * 文本消息对象转换成xml
     */
    public  static String textMessageToXml(TextMessage textMessage) {
        xstream.alias("xml", textMessage.getClass());
        return xstream.toXML(textMessage);
    }
    /**
     * 音乐消息的对象的转换成xml
     * 
     */
    public  static String musicMessageToXml(MusicMessage musicMessage) {
        xstream.alias("xml", musicMessage.getClass());
        return xstream.toXML(musicMessage);
    }
    /**
     * 图文消息的对象转换成xml
     * 
     */
    public  static String newsMessageToXml(NewsMessage newsMessage) {
        xstream.alias("xml", newsMessage.getClass());
        xstream.alias("item", new Article().getClass());
        return xstream.toXML(newsMessage);
    }
    /**
     * 拓展xstream，使得支持CDATA块
     * 
     */
    private static XStream xstream = new XStream(new XppDriver(){
        public HierarchicalStreamWriter createWriter(Writer out){
            return new PrettyPrintWriter(out){
                //对所有的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);
                    }
                }
            };
        }
    });
    

     消息类型

/**
 * 消息基类 
 * @author pengsong
 * @date 2016.01.19
 */
public class BaseMessage {
    //接收方账号（收到的openId）
    private String ToUserName;
    //开发者微信号
    private String FromUserName;
    //消息创建时间(整型)
    private long CreateTime;
    //消息类型（text/music/news）
    private String MsgType;
    //位0x0001 被标记时，星标刚收到的消息
    private int FuncFlag;
    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 int getFuncFlag() {
        return FuncFlag;
    }
    public void setFuncFlag(int funcFlag) {
        FuncFlag = funcFlag;
    }
}

public class NewsMessage extends BaseMessage{
    //图文消息的个数，限制为10条以内
    private int ArticleCount;
    //条条图文消息信息，默认第一个item为大图
    private List<Article> Article;
    public int getArticleCount() {
        return ArticleCount;
    }
    public void setArticleCount(int articleCount) {
        ArticleCount = articleCount;
    }
    public List<Article> getArticle() {
        return Article;
    }
    public void setArticle(List<Article> article) {
        Article = article;
    }
}

public class TextMessage extends BaseMessage{
    //回复的消息类容
    private String Content;

    public String getContent() {
        return Content;
    }

    public void setContent(String content) {
        Content = content;
    }

}

/**
 * 图文消息中的Article类的定义
 * 图文model
 * @author pengsong
 * @date 2015.01.19
 *
 */
public class Article {
    //图文消息名称
    private String Title;
    //图文消息描述
    private String Description;
    //图文链接，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;
    //点击图文消息跳转的链接
    private String Url;
    
    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 getPicUrl() {
        return PicUrl;
    }
    
    public void setPicUrl(String picUrl) {
        PicUrl = picUrl;
    }
    
    public String getUrl() {
        return Url;
    }
    
    public void setUrl(String url) {
        Url = url;
    }
    
}

/**
 * 音乐消息中的Music定义
 * 音乐中的model
 *
 */
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环境下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 getMusicUrl() {
        return MusicUrl;
    }
    public void setMusicUrl(String musicUrl) {
        MusicUrl = musicUrl;
    }
    public String getHQMusicUrl() {
        return HQMusicUrl;
    }
    public void setHQMusicUrl(String hQMusicUrl) {
        HQMusicUrl = hQMusicUrl;
    }
    
}

public class MusicMessage extends BaseMessage{
    //音乐
    private Music Music;

    public Music getMusic() {
        return Music;
    }

    public void setMusic(Music music) {
        Music = music;
    }
    
}