初始版本，目前线上可用

backEnd/src/util/globalMethods.ts

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+import dayjs from "dayjs";
+import { Request, Response } from "express";
+
+export function filterObjEmptyVal(obj: { [key: string]: any }) {
+  if (!obj) return {};
+  if (Array.isArray(obj))
+    throw Error("你传入了一个数组，需要的是一个Object对象");
+
+  let emptyObj = {};
+
+  for (let [key, value] of Object.entries(obj)) {
+    if (value || value === 0) emptyObj[key] = value;
+  }
+  return emptyObj;
+}
+
+export function getNowDateStr() {
+  return dayjs().format("YYYY-MM-DD HH:mm:ss");
+}
+
+export function buildTree(items, parentId = 0) {
+  return items
+    .filter((item) => item.parentId === parentId)
+    .map((item) => ({
+      ...item,
+      children: buildTree(items, item.id),
+    }));
+}
+
+export function getPaginationParams(req: Request): {
+  pageSize: number;
+  pageNumber: number;
+} {
+  const { pageSize = 10, pageNumber = 1 } =
+    req.method === "GET" ? req.query : req.body;
+
+  return {
+    pageSize: Math.max(1, parseInt(pageSize as string, 10)),
+    pageNumber: Math.max(1, parseInt(pageNumber as string, 10)),
+  };
+}
+
+/** 统一错误处理 */
+export function handleError(res: Response, error: any) {
+  const message = error instanceof Error ? error.message : "未知错误";
+  res.status(500).json({
+    code: 500,
+    msg: message,
+  });
+}
+
+/** 处理日期参数 */
+export default function parseRangDate(req: Request) {
+  let { startDate: reqStart, endDate: reqEnd } =
+    req.method === "GET" ? req.query : req.body;
+  const dateFormat = "YYYY-MM-DD HH:mm:ss";
+
+  if (!reqStart && !reqEnd) return {};
+
+  // 验证必填参数
+  if (!reqStart) reqStart = dayjs().startOf("day").toDate();
+
+  // 处理起始日期
+  const start = dayjs(reqStart as string, dateFormat);
+  if (!start.isValid()) throw new Error("起始日期格式错误");
+
+  // 处理结束日期
+  let end = start;
+  if (reqEnd) {
+    end = dayjs(reqEnd as string, dateFormat);
+    if (!end.isValid()) throw new Error("结束日期格式错误");
+    if (end.isBefore(start)) throw new Error("结束日期不能早于起始日期");
+  }
+
+  // 生成时间范围
+
+  return {
+    startDate: start.format("YYYY-MM-DD HH:mm:ss"),
+    endDate: (reqEnd ? end : dayjs()).format("YYYY-MM-DD HH:mm:ss"),
+  };
+}