初始版本，目前线上可用

backEnd/src/lib/curd/curd.ts

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+import { Request } from "express";
+import { Repository, getConnection } from "typeorm";
+import { filterObjEmptyVal } from "@/util/globalMethods";
+import dayjs from "dayjs";
+import pagination from "../pagination/pagination";
+import { BaseEntity } from "@/abstrClass/BaseEntity";
+import getBuilderPagination from "../pagination/builderPagination";
+
+interface CurdOptions<T> {
+  entity: { new (): T } & typeof BaseEntity; // 确保实体继承 BaseEntity
+  req: Request;
+  params?: Partial<T>;
+}
+class Curd<T extends BaseEntity> {
+  private entity: { new (): T };
+  private req: Request;
+  private queryParams?: { [key: string]: any };
+  private repositrory: Repository<unknown>;
+  private params?: Partial<T>;
+
+  constructor(options: CurdOptions<T> & { repository?: Repository<T> }) {
+    if (!options.entity) throw Error("请传入实体类");
+    if (!options.req)
+      throw Error("请传express的Request参数，一般在中间件回调中的第一个参数");
+    // if (!options.params) throw Error("请传入需要操作的条件对象，用于sql查询");
+    this.req = options.req;
+    this.entity = options.entity;
+
+    this.repositrory =
+      options.repository || getConnection().getRepository(options.entity);
+    this.queryParams =
+      this.req.method === "GET" ? this.req.query : this.req.body;
+
+    this.params = options.params;
+  }
+
+  async add() {
+    let addData = { ...new this.entity(), ...this.queryParams };
+
+    addData.updateDate = new Date();
+    addData.createDate = new Date();
+
+    return await this.repositrory.save(addData);
+  }
+
+  async delete() {
+    if (!this.queryParams?.id)
+      return {
+        code: 500,
+        msg: "没有传入需要删除数据的ID",
+      };
+    let queryData = await this.repositrory.findOne({
+      where: { id: this.queryParams.id },
+    });
+    if (!queryData) return { code: 500, msg: "删除的数据不存在" };
+    await this.repositrory.remove(queryData);
+    return {
+      code: 200,
+      msg: "删除成功",
+    };
+  }
+
+  async update() {
+    let body = this.queryParams;
+    await this.repositrory.update(
+      { id: body.id },
+      { ...this.queryParams, updateDate: new Date() }
+    );
+
+    return await this.repositrory.findOne(this.queryParams.id);
+  }
+
+  async query() {
+    return await this.repositrory.find({
+      where: filterObjEmptyVal({ ...this.queryParams, ...this.params }),
+      order: {
+        createDate: "DESC",
+      },
+    });
+  }
+  async queryList() {
+    return await pagination(
+      this.entity,
+      this.req,
+      filterObjEmptyVal({ ...this.queryParams, ...this.params })
+    );
+  }
+  async queryBuilderList() {
+    return await getBuilderPagination(
+      this.entity,
+      this.req,
+      filterObjEmptyVal({ ...this.queryParams, ...this.params })
+    );
+  }
+}
+
+export default function curd<T extends BaseEntity>(
+  options: CurdOptions<T>
+): Curd<T> {
+  return new Curd(options);
+}