Spring获取公众号xml数据的两种方式

深碍√TFBOYSˉ_ 2023-05-31 02:42 13阅读 0赞

## 方式1：HttpServletRequest req ##

@PostMapping(produces = "application/xml; charset=UTF-8")
        public String post(HTTPServletRequest req,
                           @RequestParam("signature") String signature,
                           @RequestParam("timestamp") String timestamp,
                           @RequestParam("nonce") String nonce,
                           @RequestParam("openid") String openid,
                           @RequestParam(name = "encrypt_type", required = false) String encType,
                           @RequestParam(name = "msg_signature", required = false) String msgSignature) {
    
            logger.info("notifyData"+requestData,requestData.toString());
            logger.info("post:{},{},{},{},{}",signature,timestamp,nonce,openid,encType,msgSignature);
            if (!CheckUtil.checkSignature(signature, timestamp, nonce)) {
                throw new IllegalArgumentException("非法请求！");
            }
            Map<String, String> map = null;
            try {
              map = MessageUtil.xmlToMap(req);
                wxAccountService.router(map,openid);
                System.out.println(openid);
            } catch (Exception e) {
                e.printStackTrace();
            }
        return  "";
    
        }

## 方式2：@RequestBody ##

requestData任意命名，即可把body中的xml数据转换为xml字符串。

@PostMapping(produces = "application/xml; charset=UTF-8")
        public String post(@RequestBody String requestData,
                           @RequestParam("signature") String signature,
                           @RequestParam("timestamp") String timestamp,
                           @RequestParam("nonce") String nonce,
                           @RequestParam("openid") String openid,
                           @RequestParam(name = "encrypt_type", required = false) String encType,
                           @RequestParam(name = "msg_signature", required = false) String msgSignature) {
    
            logger.info("notifyData"+requestData,requestData.toString());
            logger.info("post:{},{},{},{},{}",signature,timestamp,nonce,openid,encType,msgSignature);
            if (!CheckUtil.checkSignature(signature, timestamp, nonce)) {
                throw new IllegalArgumentException("非法请求！");
            }
            Map<String, String> map = null;
            try {
                map = WXPayUtil.xmlToMap(requestData);
    //          map = MessageUtil.xmlToMap(req);
                wxAccountService.router(map,openid);
                System.out.println(openid);
            } catch (Exception e) {
                e.printStackTrace();
            }
        return  "";
    
        }

附赠转换工具

public static Map<String, String> xmlToMap(String strXML) throws Exception {
            try {
                Map<String, String> data = new HashMap<String, String>();
                DocumentBuilder documentBuilder = WXPayXmlUtil.newDocumentBuilder();
                InputStream stream = new ByteArrayInputStream(strXML.getBytes("UTF-8"));
                org.w3c.dom.Document doc = documentBuilder.parse(stream);
                doc.getDocumentElement().normalize();
                NodeList nodeList = doc.getDocumentElement().getChildNodes();
                for (int idx = 0; idx < nodeList.getLength(); ++idx) {
                    Node node = nodeList.item(idx);
                    if (node.getNodeType() == Node.ELEMENT_NODE) {
                        org.w3c.dom.Element element = (org.w3c.dom.Element) node;
                        data.put(element.getNodeName(), element.getTextContent());
                    }
                }
                try {
                    stream.close();
                } catch (Exception ex) {
                    // do nothing
                }
                return data;
            } catch (Exception ex) {
                WXPayUtil.getLogger().warn("Invalid XML, can not convert to map. Error message: {}. XML content: {}", ex.getMessage(), strXML);
                throw ex;
            }
    
        }

* 利用dom4j读取xml文件存放在map对象中
         */
        public static Map<String,String> xmlToMap(HttpServletRequest request) throws Exception{
            Map<String,String> map = new HashMap<String, String>();
            SAXReader reader = new SAXReader();
            InputStream ins = request.getInputStream();
            Document doc = reader.read(ins);
    
            Element root = doc.getRootElement();
            List<Element> list = root.elements();
            for(Element e:list){
                map.put(e.getName(),e.getText());
            }
            ins.close();
            System.out.println(map.toString()   );
            return map;
        }