常用工具类代码段

怼烎@ 2022-07-16 15:12 184阅读 0赞

/** * 获取request * @return * @return */
        public static HttpServletRequest getRequest() {
            HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();  
            return request;
        }
        /** * SpringMVC获取Session * @return */
        public static HttpSession getSession() {
            //Spring获取request的方式
            HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();  
            //获取session
            HttpSession session = request.getSession();  
            return session;
        }
    
        /** * 主键生成方法 * @return */
        public static String uuid() {
            UUID uuid = UUID.randomUUID();
            String str = uuid.toString();
            // 去掉"-"符号
            String temp;
            temp = str.replaceAll("-", "");
            return temp;
        }
    
        /** * 密码加密方法 * @param data * @return */
        public static String md5(String data) {
            String _date = org.apache.commons.codec.digest.DigestUtils.md5Hex(data);
            return _date;
        }
    
        /** * 上传图片路径工具 * @param system * @return */
        public static String getFilesUploadPath(String system){
            String s = File.separator;
            if(system.equals("Window")){
                return "D:/tools/mastor/uploadPic/";
            }else{
                return s+"root"+s+"develop"+s+"uploadPic"+s;
            }
        }
    
        /** * 文件上传，为文件重新命名 **/
        public static String getFileRename(String name) {
            Date date = new Date();
            SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmssSSS");
            String sdfDate = sdf.format(date);
            int pos = name.lastIndexOf(".");
            String suffix = name.substring(pos);
            String rename = sdfDate+suffix;
            return rename;
        }
    
        /** * 字符串解析 * @param rsContent * @return * @throws Exception */
        public static List<Map<String, String>> strToList(String rsContent) throws Exception {
            JsonConfig jsonConfig = new JsonConfig();
            JSONArray arry = new JSONArray();
            if (rsContent != null && !rsContent.equals("")) {
                arry = JSONArray.fromObject(rsContent, jsonConfig);
            }
            List<Map<String, String>> rsList = new ArrayList<Map<String, String>>();
            for (int i = 0; i < arry.size(); i++) {
                JSONObject jsonObject = arry.getJSONObject(i);
                Map<String, String> map = new HashMap<String, String>();
                for (Iterator<?> iter = jsonObject.keys(); iter.hasNext();) {
                    String key = (String) iter.next();
                    String value = jsonObject.get(key).toString();
                    map.put(key, value);
                }
                rsList.add(map);
            }
            return rsList;
        }