java 获取 HttpServletRequest 值 demo

    private void getHttpServletRequestInfo(HttpServletRequest request){

        try {
            StringBuilder stringBuilder = new StringBuilder();
            stringBuilder.append("--------------------------reqHeadInfos---------------------------------");
            Enumeration<String> reqHeadInfos = request.getHeaderNames();
            while (reqHeadInfos.hasMoreElements()) {
                String headName = (String) reqHeadInfos.nextElement();
                String headValue = request.getHeader(headName);//根据请求头的名字获取对应的请求头的值
                stringBuilder.append(headName).append(":").append(headValue).append(";");
            }

            stringBuilder.append("\n--------------------------parameterNames---------------------------------\n");
            Enumeration<String> parameterNames = request.getParameterNames();
            while (parameterNames.hasMoreElements()) {
                String parameterName = (String) parameterNames.nextElement();
                String parameterValue = request.getParameter(parameterName);//根据请求头的名字获取对应的请求头的值
                stringBuilder.append(parameterName).append(":").append(parameterValue).append(";");
            }
            stringBuilder.append("\n--------------------------body---------------------------------\n");
            BufferedReader reader = new BufferedReader(new InputStreamReader(request.getInputStream()));
            String body = reader.readLine();
            stringBuilder.append("body:").append(body).append(";");

            stringBuilder.append("\n--------------------------Session---------------------------------\n");
            HttpSession httpSession = request.getSession();
            stringBuilder.append("SessionID:").append(httpSession.getId()).append(";");
            Enumeration<String> attributeNames =  httpSession.getAttributeNames();
            while (attributeNames.hasMoreElements()) {
                String parameterName = (String) attributeNames.nextElement();
                Object parameterValue = httpSession.getAttribute(parameterName);//根据请求头的名字获取对应的请求头的值
                stringBuilder.append(parameterName).append(":").append(parameterValue.toString()).append(";");
            }
            stringBuilder.append("\n--------------------------Cookie---------------------------------\n");
            Cookie[] cookies = request.getCookies();
            if(cookies != null){
                for (Cookie cookie : cookies) {
                    String cookieName = cookie.getName();
                    String cookieValue = cookie.getValue();//根据Cookie的名字获取对应的请求头的值
                    stringBuilder.append(cookieName).append(":").append(cookieValue).append(";");
                }
            }

            stringBuilder.append("\n----------------------------other-------------------------------\n");
            stringBuilder.append("characterEncoding:").append(request.getCharacterEncoding()).append(";");
            stringBuilder.append("getContentLength:").append(request.getContentLength()).append(";");
            stringBuilder.append("getContentType:").append(request.getContentType()).append(";");
            stringBuilder.append("getAuthType:").append(request.getAuthType()).append(";");
            stringBuilder.append("getMethod:").append(request.getMethod()).append(";");

            stringBuilder.append("isRequestedSessionIdValid:").append(request.isRequestedSessionIdValid()).append(";");
            stringBuilder.append("isRequestedSessionIdFromCookie:").append(request.isRequestedSessionIdFromCookie()).append(";");
            stringBuilder.append("isRequestedSessionIdFromURL:").append(request.isRequestedSessionIdFromURL()).append(";");

            Log.info("getHttpServletRequestInfo",stringBuilder.toString());

        } catch (Exception e) {
            Log.error("getHttpServletRequestInfo", e);
        }
    }