微信公众帐号开发教程之图文消息全攻略

package org.liufeng.course.service;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import org.liufeng.course.message.resp.Article;
import org.liufeng.course.message.resp.NewsMessage;
import org.liufeng.course.message.resp.TextMessage;
import org.liufeng.course.util.MessageUtil;
/**
 * 核心服务类
 * 
 * @author liufeng
 * @date 2013-07-25
 */
public class CoreService {
 /**
 * 处理微信发来的请求
 * 
 * @param request
 * @return
 */
 public static 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");
 // 默认回复此文本消息
 TextMessage textMessage = new TextMessage();
 textMessage.setToUserName(fromUserName);
 textMessage.setFromUserName(toUserName);
 textMessage.setCreateTime(new Date().getTime());
 textMessage.setMsgType(MessageUtil.RESP_MESSAGE_TYPE_TEXT);
 textMessage.setFuncFlag(0);
 // 由于href属性值必须用双引号引起，这与字符串本身的双引号冲突，所以要转义
 textMessage.setContent("欢迎访问<a href=\"http://blog.csdn.net/lyq8479\">柳峰的博客</a>!");
 // 将文本消息对象转换成xml字符串
 respMessage = MessageUtil.textMessageToXml(textMessage);
 // 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");
 // 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);
 newsMessage.setFuncFlag(0);
 List<Article> articleList = new ArrayList<Article>();
 // 单图文消息
 if ("1".equals(content)) {
  Article article = new Article();
  article.setTitle("微信公众帐号开发教程Java版");
  article.setDescription("柳峰，80后，微信公众帐号开发经验4个月。为帮助初学者入门，特推出此系列教程，也希望借此机会认识更多同行！");
  article.setPicUrl("http://0.xiaoqrobot.duapp.com/images/avatar_liufeng.jpg");
  article.setUrl("http://blog.csdn.net/lyq8479");
  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);
 }
 // 单图文消息---不含图片
 else if ("2".equals(content)) {
  Article article = new Article();
  article.setTitle("微信公众帐号开发教程Java版");
  // 图文消息中可以使用QQ表情、符号表情
  article.setDescription("柳峰，80后，" + emoji(0x1F6B9)
  + "，微信公众帐号开发经验4个月。为帮助初学者入门，特推出此系列连载教程，也希望借此机会认识更多同行！\n\n目前已推出教程共12篇，包括接口配置、消息封装、框架搭建、QQ表情发送、符号表情发送等。\n\n后期还计划推出一些实用功能的开发讲解，例如：天气预报、周边搜索、聊天功能等。");
  // 将图片置为空
  article.setPicUrl("");
  article.setUrl("http://blog.csdn.net/lyq8479");
  articleList.add(article);
  newsMessage.setArticleCount(articleList.size());
  newsMessage.setArticles(articleList);
  respMessage = MessageUtil.newsMessageToXml(newsMessage);
 }
 // 多图文消息
 else if ("3".equals(content)) {
  Article article1 = new Article();
  article1.setTitle("微信公众帐号开发教程\n引言");
  article1.setDescription("");
  article1.setPicUrl("http://0.xiaoqrobot.duapp.com/images/avatar_liufeng.jpg");
  article1.setUrl("http://blog.csdn.net/lyq8479/article/details/8937622");
  Article article2 = new Article();
  article2.setTitle("第2篇\n微信公众帐号的类型");
  article2.setDescription("");
  article2.setPicUrl("http://avatar.csdn.net/1/4/A/1_lyq8479.jpg");
  article2.setUrl("http://blog.csdn.net/lyq8479/article/details/8941577");
  Article article3 = new Article();
  article3.setTitle("第3篇\n开发模式启用及接口配置");
  article3.setDescription("");
  article3.setPicUrl("http://avatar.csdn.net/1/4/A/1_lyq8479.jpg");
  article3.setUrl("http://blog.csdn.net/lyq8479/article/details/8944988");
  articleList.add(article1);
  articleList.add(article2);
  articleList.add(article3);
  newsMessage.setArticleCount(articleList.size());
  newsMessage.setArticles(articleList);
  respMessage = MessageUtil.newsMessageToXml(newsMessage);
 }
 // 多图文消息---首条消息不含图片
 else if ("4".equals(content)) {
  Article article1 = new Article();
  article1.setTitle("微信公众帐号开发教程Java版");
  article1.setDescription("");
  // 将图片置为空
  article1.setPicUrl("");
  article1.setUrl("http://blog.csdn.net/lyq8479");
  Article article2 = new Article();
  article2.setTitle("第4篇\n消息及消息处理工具的封装");
  article2.setDescription("");
  article2.setPicUrl("http://avatar.csdn.net/1/4/A/1_lyq8479.jpg");
  article2.setUrl("http://blog.csdn.net/lyq8479/article/details/8949088");
  Article article3 = new Article();
  article3.setTitle("第5篇\n各种消息的接收与响应");
  article3.setDescription("");
  article3.setPicUrl("http://avatar.csdn.net/1/4/A/1_lyq8479.jpg");
  article3.setUrl("http://blog.csdn.net/lyq8479/article/details/8952173");
  Article article4 = new Article();
  article4.setTitle("第6篇\n文本消息的内容长度限制揭秘");
  article4.setDescription("");
  article4.setPicUrl("http://avatar.csdn.net/1/4/A/1_lyq8479.jpg");
  article4.setUrl("http://blog.csdn.net/lyq8479/article/details/8967824");
  articleList.add(article1);
  articleList.add(article2);
  articleList.add(article3);
  articleList.add(article4);
  newsMessage.setArticleCount(articleList.size());
  newsMessage.setArticles(articleList);
  respMessage = MessageUtil.newsMessageToXml(newsMessage);
 }
 // 多图文消息---最后一条消息不含图片
 else if ("5".equals(content)) {
  Article article1 = new Article();
  article1.setTitle("第7篇\n文本消息中换行符的使用");
  article1.setDescription("");
  article1.setPicUrl("http://0.xiaoqrobot.duapp.com/images/avatar_liufeng.jpg");
  article1.setUrl("http://blog.csdn.net/lyq8479/article/details/9141467");
  Article article2 = new Article();
  article2.setTitle("第8篇\n文本消息中使用网页超链接");
  article2.setDescription("");
  article2.setPicUrl("http://avatar.csdn.net/1/4/A/1_lyq8479.jpg");
  article2.setUrl("http://blog.csdn.net/lyq8479/article/details/9157455");
  Article article3 = new Article();
  article3.setTitle("如果觉得文章对你有所帮助，请通过博客留言或关注微信公众帐号xiaoqrobot来支持柳峰！");
  article3.setDescription("");
  // 将图片置为空
  article3.setPicUrl("");
  article3.setUrl("http://blog.csdn.net/lyq8479");
  articleList.add(article1);
  articleList.add(article2);
  articleList.add(article3);
  newsMessage.setArticleCount(articleList.size());
  newsMessage.setArticles(articleList);
  respMessage = MessageUtil.newsMessageToXml(newsMessage);
 }
 }
 } catch (Exception e) {
 e.printStackTrace();
 }
 return respMessage;
 }
 /**
 * emoji表情转换(hex -> utf-16)
 * 
 * @param hexEmoji
 * @return
 */
 public static String emoji(int hexEmoji) {
 return String.valueOf(Character.toChars(hexEmoji));
 }
}