微信公众号回调接口HttpServletRequest 操作

阳光穿透心脏的1/2处 2022-09-25 12:29 468阅读 0赞

微信公众号回调接口，解析参数

1、获取request 参数

Map<?, ?>  parameterMap = request.getParameterMap();

2、map 转json

JSONObject requestParam = JSONObject.fromObject((parameterMap==null||parameterMap.isEmpty())?"{}":parameterMap);

3、读取request

private String parse(HttpServletRequest request) {
            BufferedReader buf = null;
            try {
                buf = new BufferedReader(new InputStreamReader(request.getInputStream(),"UTF-8"));
                StringBuilder sb = new StringBuilder();
                String line = null;
                while (null != (line = buf.readLine())) {
                    sb.append(line);
                }
                if (sb.length() > 0) {
                    return sb.toString();
                }
            } catch (Exception e) {
                log.error("weimob parse request error!", e);
                return null;
            } finally {
                try {
                    buf.close();
                } catch (Exception e) {
                    log.error("weimob parse request error!", e);
                }
            }
            return null;
        }

4、解析读取request内容，将xml格式的字符串解析成map(针对子节点中没有重复的节点名)

xmlDoc为parse方法读取到的request内容，解析为map

private Map<String, String> parseXMl(String xmlDoc) throws Exception {
            if (StringUtils.isBlank(xmlDoc)) {
                return null;
            }
            StringReader xmlString = new StringReader(xmlDoc);
            // 创建新的输入源SAX 解析器将使用 InputSource 对象来确定如何读取 XML 输入
            InputSource source = new InputSource(xmlString);
            // 创建一个新的SAXBuilder
            SAXBuilder saxb = new SAXBuilder();
            // 通过输入源构造一个Document
            Document doc = saxb.build(source);
            Element root = doc.getRootElement();
            // 得到根元素所有子元素的集合
            List<?> node = root.getChildren();
            Map<String, String> m = new HashMap<String, String>();
            if (node.size() > 0) {
                for (int i = 0; i < node.size(); i++) {
                    Element el = (Element) node.get(i);
                    m.put(el.getName(), el.getText());
                }
            } else {
                m.put(root.getName(), root.getText());
            }
            return m;
        }

requestInputMap.get(key);获取参数