GET中传递的参数可以直接通过request.getParameter获取。Post 传递的产生不能过直接从request.getInputStream() 读取，必须要进行重新写。（request.getInputStream()只能够读取一次）
方式： 通过重写 HttpServletRequestWrapper 类 获取getInputStream中的流数据，然后在将body数据进行重新写入传递下去。
继承 HttpServletRequestWrapper
通过重写 HttpServletRequestWrapper 类 获取getInputStream中的流数据，然后在将body数据进行重新写入传递下去。
/*** @author fuwenshen* @version 1.0.0* @ClassName RequestWrapper.java* @Description RequestWrapper封装类，* @createTime 01月18日 13:57:00*/public class RequestWrapper extends HttpServletRequestWrapper {private String body;/*** Constructs a request object wrapping the given request.** @param request The request to wrap* @throws IllegalArgumentException if the request is null*/public RequestWrapper(HttpServletRequest request) throws IOException{super(request);StringBuilder stringBuilder = new StringBuilder();BufferedReader bufferedReader = null;try {InputStream inputStream = request.getInputStream();if (inputStream != null) {bufferedReader = new BufferedReader(new InputStreamReader(inputStream,"UTF-8"));char[] charBuffer = new char[128];int bytesRead = -1;while ((bytesRead = bufferedReader.read(charBuffer)) > 0) {stringBuilder.append(charBuffer, 0, bytesRead);}} else {stringBuilder.append("");}} catch (IOException ex) {throw ex;} finally {if (bufferedReader != null) {try {bufferedReader.close();} catch (IOException ex) {throw ex;}}}body = stringBuilder.toString();}/*** 重写getInputStream， 从body中获取请求参数* @return* @throws IOException*/@Overridepublic ServletInputStream getInputStream() throws IOException {final ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(body.getBytes("UTF-8"));ServletInputStream servletInputStream = new ServletInputStream() {@Overridepublic boolean isFinished() {return false;}@Overridepublic boolean isReady() {return false;}@Overridepublic void setReadListener(ReadListener readListener) {}@Overridepublic int read() throws IOException {return byteArrayInputStream.read();}};return servletInputStream;}/*** 重写获取 字符流的方式* @return* @throws IOException*/@Overridepublic BufferedReader getReader() throws IOException {return new BufferedReader(new InputStreamReader(this.getInputStream(), Charsets.UTF_8));}/*** 直接返回获取 body* @return*/public String getBody() {return this.body;}}
继承HandlerInterceptorAdapter
GET中传递的参数可以直接通过request.getParameter获取。Post 传递的产生不能过直接从request.getInputStream() 读取，必须要进行重新写。（request.getInputStream()只能够读取一次）通过继承HandlerInterceptorAdapter实现SpringBoot 拦截器功能
/*** @author fuwenshen* @version 1.0.0* @ClassName TokenValidateIntercepter.java* @Description token 校验拦截器* @createTime 01月18日 13:47:00*/public class TokenValidateInterceptor extends HandlerInterceptorAdapter {private Logger logger = LoggerFactory.getLogger(TokenValidateInterceptor.class);@Overridepublic boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {String token = request.getHeader("token");if(StrUtil.isBlank(token)){response.getWriter().print("token is not null");return false;}// 参数集合 初始化Map<String, Object> paramsMaps = new TreeMap();try {if ("POST".equals(request.getMethod().toUpperCase())) {// 防止流读取一次后就没有了, 所以需要将流继续写出去RequestWrapper requestWrapper = new RequestWrapper(request);String body = requestWrapper.getBody();paramsMaps = JSONObject.parseObject(body, TreeMap.class);logger.debug("parameterMap:" + paramsMaps.toString());} else {Map<String, String[]> parameterMap = request.getParameterMap();Set<Map.Entry<String, String[]>> entries = parameterMap.entrySet();Iterator<Map.Entry<String, String[]>> iterator = entries.iterator();while (iterator.hasNext()) {Map.Entry<String, String[]> next = iterator.next();paramsMaps.put(next.getKey(), next.getValue()[0]);}logger.debug("parameterMap:" + paramsMaps.toString());}// checkTokenSign}catch (Exception e){logger.error("token 验签失败！",e);return false;}return true;}}
