微信公众号关注后图文回复java代码

/*微信图文回复验证token*/

@RequestMapping(value = "imgtext.form",method=RequestMethod.GET)
@ResponseBody
public String getimgtext(HttpServletRequest request,
                      HttpServletResponse response) throws UnsupportedEncodingException, AesException {
    System.out.println("微信图文回复=======get");
    String msgSignature = request.getParameter("signature");
    String msgTimestamp = request.getParameter("timestamp");
    String msgNonce = request.getParameter("nonce");
    String echostr = request.getParameter("echostr");
    if (WXPublicUtils.verifyUrl(msgSignature, msgTimestamp, msgNonce)) {
        return echostr;
    }
    return null;
}

    /*微信图文回复处理事件内容*/
    @RequestMapping(value = "imgtext.form",method=RequestMethod.POST)
    @ResponseBody
    public void imgtext(HttpServletRequest request,
                        HttpServletResponse response) throws UnsupportedEncodingException, AesException {
        System.out.println("微信图文回复=======");
        // 设置utf-8编码防止中文乱码
        request.setCharacterEncoding("UTF-8");
        response.setCharacterEncoding("UTF-8");
        PrintWriter out = null;

        // 发送给微信端的的xml数据
        String respXmlMsg = null;
        // 返回xml数据对象
        ResponseXml responseXml = new ResponseXml();
        // xml请求解析
        Map<String, String> requestMap;
        try {
            requestMap = MessageUtil.parseXml(request);// 解析xml对象
            String fromUserName = requestMap.get("FromUserName");// 发送方帐号（open_id）
            String toUserName = requestMap.get("ToUserName");// 公众帐号
            String creatTime = requestMap.get("CreateTime");
            String msgType = requestMap.get("MsgType");// 消息类型
            String content = requestMap.get("Content");// text内容
            String event = requestMap.get("Event");// event内容
            String eventKey = requestMap.get("EventKey");
            // 根据用户输入回复不同内容
            if (msgType.equals("text")) {

            } else if (msgType.equals("image")) {
            }
            if (msgType.equals("event")) {
                if (event.equals("subscribe")) {
                    // 关注时 返回消息
                    respXmlMsg = responseXml.getReplyTuwenMessage(fromUserName, toUserName, "http://baike.baidu.com/view/6300265.htm",
                            "https://gss2.bdstatic.com/-fo3dSag_xI4khGkpoWK1HF6hhy/baike/w%3D268%3Bg%3D0/sign=bf7422c4d754564ee565e33f8be5fbbf/10dfa9ec8a13632794f0dce49b8fa0ec09fac7cc.jpg");
                    System.out.println(respXmlMsg);
                } else if (event.equals("CLICK")) {
                }

            }
            out = response.getWriter();
            out.print(respXmlMsg);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            out.close();
            out = null;
        }
    }