Java微信公众号安全模式消息解密

 public static String streamToString(HttpServletRequest request) throws IOException {  BufferedReader reader = new BufferedReader(new InputStreamReader(request.getInputStream()));  StringBuilder sb = new StringBuilder();  String line;  try {   while ((line = reader.readLine()) != null) {    sb.append(line);   }  } catch (IOException e) {   e.printStackTrace();  }  return sb.toString(); }  /**  * xml转为map集合  *  * @param request  * @param msg  * @return  * @throws IOException  * @throws DocumentException  */ public static Map<String, String> xmlToMap(HttpServletRequest request, Message msg) throws Exception {  SAXReader reader = new SAXReader();  String token = "";  String encodingAesKey = "";  String appId = "";  //获取加密消息xml字符串  /* String format = "<xml><ToUserName><![CDATA[toUser]]></ToUserName><Encrypt><![CDATA[%1$s]]></Encrypt></xml>";  Document document = reader.read(request.getInputStream());  Element rootElement = document.getRootElement();  Element encrypt = rootElement.element("Encrypt");*///  String fromXML = String.format(format, encrypt.getText());  String fromXML = streamToString(request);  //解密消息  WXBizMsgCrypt pc = new WXBizMsgCrypt(token, encodingAesKey, appId);  //获得解密消息  String result = pc.decryptMsg(msg.getMsg_signature(), msg.getTimestamp(), msg.getNonce(), fromXML);  Map<String, String> map = new HashMap<>(6);  //将解密后的消息转为xml  Document doc = DocumentHelper.parseText(result);  Element root = doc.getRootElement();  List<Element> list = root.elements();  for (Element e : list) {   map.put(e.getName(), e.getText());  }  return map; }

package com.caisin.weixin.domain; import lombok.Data; @Datapublic class Message { private String signature; private String timestamp; private String nonce; private String openid; private String msg_signature; private String encrypt_type;}