我想做个拦截器，当用户点击某个菜单时校验他的基本信息，当他没有完善信息时，在微信上发个链接，让他点击进入完善信息界面!

/**
	 * 用一个wxHandler处理对应的用户请求
	 */
	public static View handle(WxHandler wxHandler, HttpServletRequest req, String key) throws IOException {
		if (wxHandler == null) {
			log.info("WxHandler is NULL");
			return HttpStatusView.HTTP_502;
		}
		String signature = req.getParameter("signature");
		String timestamp = req.getParameter("timestamp");
		String nonce = req.getParameter("nonce");
		String msg_signature = req.getParameter("msg_signature");
		String encrypt_type = req.getParameter("encrypt_type");
		if (!wxHandler.check(signature, timestamp, nonce, key)) {
			log.info("token is invalid");
			return HttpStatusView.HTTP_502;
		}
		if ("GET".equalsIgnoreCase(req.getMethod())) {
		    String echostr = req.getParameter("echostr");
			log.info("GET? return echostr=" + echostr);
			return new ViewWrapper(new RawView(null), echostr);
		}
		String postData = Streams.readAndClose(new InputStreamReader(req.getInputStream(), Encoding.CHARSET_UTF8));

		if ("aes".equals(encrypt_type)) {
            WXBizMsgCrypt msgCrypt = wxHandler.getMsgCrypt();
		    try {
		        // 若抛出Illegal key size,请更新JDK的加密库为不限制长度
                postData = msgCrypt.decryptMsg(msg_signature, timestamp, nonce, postData);
            }
            catch (AesException e) {
                return new HttpStatusView(403);
            }
		}
		WxInMsg in = Wxs.convert(postData);
		in.setExtkey(key);
		WxOutMsg out = wxHandler.handle(in);
		if (out != null) {
			Wxs.fix(in, out);
		}
		return new ViewWrapper(WxView.me, out);
	}

参考了这个类，写了

public class UserFilter implements ActionFilter {
	private String path;
	
	private CloudBindService cloudBindService= Mvcs.ctx().getDefaultIoc().get(CloudBindService.class);
	
	private WxHandler wxHandler= Mvcs.ctx().getDefaultIoc().get(WxHandler.class);
	
	public UserFilter(String path) {
		this.path = path;
	}
	/**
	 * return MyBeetlViewMarker.make(path);返回Beetl渲染頁面
	 */
	@Override
	public View match(ActionContext context) {
		String openid = Strings.sNull(context.getRequest().getSession().getAttribute("openid"));
		NutMap nutMap = cloudBindService.searchById(openid);
        if (nutMap.get("data")==null) {
        	WxInMsg in = new WxInMsg();
    		in.setContent("1");
    		in.setMsgType("text");
    		WxOutMsg out = wxHandler.handle(in);
    		if (out != null) {
    			Wxs.fix(in, out);
    		}
    		return new ViewWrapper(WxView.me, out);
        }
        JSONObject json = JSONObject.parseObject(nutMap.get("data").toString());
        context.getRequest().getSession().setAttribute("unitid",json.getString("unitid"));
		return null;
	}

}

怎么返回的是xml格式的报文