微信开发总结 二

public class MessageConstant {

/**文本 */
public static final String REQ_MESSAGE_TYPE_TEXT = "text";
/**图片*/
public static final String REQ_MESSAGE_TYPE_IMAGE = "image";
/**语音*/
public static final String REQ_MESSAGE_TYPE_VOICE = "voice";
/**视频*/
public static final String REQ_MESSAGE_TYPE_VIDEO = "video";
/**小视频*/
public static final String REQ_MESSAGE_TYPE_SHORTVIDEO = "shortvideo";
/**地理位置*/
public static final String REQ_MESSAGE_TYPE_LOCATION = "location";
/**链接消息*/
public static final String REQ_MESSAGE_TYPE_LINK = "link";

/** 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";
/**二维码扫描*/
public static final String EVENT_TYPE_SCAN = "SCAN";
/**位置类型*/
public static final String EVENT_TYPE_LOCATION  = "LOCATION";
/**事件类型：CLICK(自定义菜单点击事件)*/
public static final String EVENT_TYPE_CLICK = "CLICK";

/**文本 */
public static final String RES_MESSAGE_TYPE_TEXT = "text";
/**图片*/
public static final String RES_MESSAGE_TYPE_IMAGE = "image";
/**语音*/
public static final String RES_MESSAGE_TYPE_VOICE = "voice";
/**视频*/
public static final String RES_MESSAGE_TYPE_VIDEO = "video";
/**音乐*/
public static final String RES_MESSAGE_TYPE_MUSIC = "music";
/**图文*/
public static final String RES_MESSAGE_TYPE_NEWS = "news";

}

public class MessageUtil {
/**
* 解析微信发来的请求（xml）
* @author wuyw
* 2015-7-29下午6:11:41
* @return
*/
public static Map<String,String> parseXml(HttpServletRequest request){
Map<String,String> map = new HashMap<String,String>();
try {
//获取微信传来的参数
InputStream inputStream = request.getInputStream();
//读取输入流
SAXReader reader = new SAXReader();
Document document = reader.read(inputStream);
//获取xml根元素
Element root = document.getRootElement();
@SuppressWarnings("unchecked")
List<Element> elements = root.elements();
//遍历获取的元素
for (Element element : elements) {
map.put(element.getName(), element.getText());
}
inputStream.close();
} catch (Exception e) {
e.printStackTrace();
}
return map;
}

/**
* 扩展xstream令其支持CDATA
*/
public static XStream xStream=new XStream(new XppDriver(){
public HierarchicalStreamWriter createWriter(Writer out){
return new PrettyPrintWriter(out){
//对所有xml增加CDATA标记
boolean cdata=true;

@SuppressWarnings("rawtypes")
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);
}
}
};
}
});
//文本
public static String messageToXml(BaseResMsg resMsg){
xStream.alias("xml", resMsg.getClass());
return xStream.toXML(resMsg);
}

}