refactor: improve date handling and timezone consistency

- Add timezone support to database module (+08:00)
- Extract date formatting utilities to shared modules
- Standardize timezone handling across frontend and backend
- Improve date formatting consistency in UI components
- Refactor crawler page.goto options for better readability

src/bids/services/bid.service.ts

@@ -3,6 +3,11 @@ import { InjectRepository } from '@nestjs/typeorm';
 import { Repository, LessThan } from 'typeorm';
 import { BidItem } from '../entities/bid-item.entity';
 import { CrawlInfoAdd } from '../../crawler/entities/crawl-info-add.entity';
+import {
+  getDaysAgo,
+  setStartOfDay,
+  setEndOfDay,
+} from '../../common/utils/timezone.util';
 
 interface FindAllQuery {
   page?: number;
@@ -73,8 +78,7 @@ export class BidsService {
   }
 
   async cleanOldData() {
-    const thirtyDaysAgo = new Date();
-    thirtyDaysAgo.setDate(thirtyDaysAgo.getDate() - 30);
+    const thirtyDaysAgo = getDaysAgo(30);
     return this.bidRepository.delete({
       createdAt: LessThan(thirtyDaysAgo),
     });
@@ -91,9 +95,7 @@ export class BidsService {
   }
 
   async getRecentBids() {
-    const thirtyDaysAgo = new Date();
-    thirtyDaysAgo.setDate(thirtyDaysAgo.getDate() - 30);
-    thirtyDaysAgo.setHours(0, 0, 0, 0);
+    const thirtyDaysAgo = setStartOfDay(getDaysAgo(30));
 
     return this.bidRepository
       .createQueryBuilder('bid')
@@ -118,14 +120,12 @@ export class BidsService {
     const qb = this.bidRepository.createQueryBuilder('bid');
 
     if (startDate) {
-      const start = new Date(startDate);
-      start.setHours(0, 0, 0, 0);
+      const start = setStartOfDay(new Date(startDate));
       qb.andWhere('bid.publishDate >= :startDate', { startDate: start });
     }
 
     if (endDate) {
-      const end = new Date(endDate);
-      end.setHours(23, 59, 59, 999);
+      const end = setEndOfDay(new Date(endDate));
       qb.andWhere('bid.publishDate <= :endDate', { endDate: end });
     }
 

src/common/logger/winston.config.ts

@@ -76,6 +76,10 @@ const errorLogTransport = new DailyRotateFile({
 export const winstonLogger = winston.createLogger({
   level: process.env.LOG_LEVEL || 'info',
   format: logFormat,
-  transports: [consoleTransport, appLogTransport as any, errorLogTransport as any],
+  transports: [
+    consoleTransport,
+    appLogTransport as any,
+    errorLogTransport as any,
+  ],
   exitOnError: false,
 });

src/common/utils/timezone.util.ts

@@ -0,0 +1,98 @@
+/**
+ * 时区工具函数
+ * 统一处理东八区(Asia/Shanghai)时间相关的操作
+ */
+
+const TIMEZONE_OFFSET = 8 * 60 * 60 * 1000;
+
+/**
+ * 获取当前时间的东八区Date对象
+ * @returns Date 当前时间的东八区表示
+ */
+export function getCurrentDateInTimezone(): Date {
+  const now = new Date();
+  const utc = now.getTime() + now.getTimezoneOffset() * 60 * 1000;
+  return new Date(utc + TIMEZONE_OFFSET);
+}
+
+/**
+ * 将任意Date对象转换为东八区时间
+ * @param date 原始Date对象
+ * @returns Date 转换后的东八区时间
+ */
+export function convertToTimezone(date: Date): Date {
+  const utc = date.getTime() + date.getTimezoneOffset() * 60 * 1000;
+  return new Date(utc + TIMEZONE_OFFSET);
+}
+
+/**
+ * 格式化日期为 YYYY-MM-DD 格式
+ * @param date Date对象
+ * @returns 格式化后的日期字符串
+ */
+export function formatDate(date: Date): string {
+  const timezoneDate = convertToTimezone(date);
+  const year = timezoneDate.getFullYear();
+  const month = String(timezoneDate.getMonth() + 1).padStart(2, '0');
+  const day = String(timezoneDate.getDate()).padStart(2, '0');
+  return `${year}-${month}-${day}`;
+}
+
+/**
+ * 格式化日期时间为 YYYY-MM-DD HH:mm:ss 格式
+ * @param date Date对象
+ * @returns 格式化后的日期时间字符串
+ */
+export function formatDateTime(date: Date): string {
+  const timezoneDate = convertToTimezone(date);
+  const year = timezoneDate.getFullYear();
+  const month = String(timezoneDate.getMonth() + 1).padStart(2, '0');
+  const day = String(timezoneDate.getDate()).padStart(2, '0');
+  const hours = String(timezoneDate.getHours()).padStart(2, '0');
+  const minutes = String(timezoneDate.getMinutes()).padStart(2, '0');
+  const seconds = String(timezoneDate.getSeconds()).padStart(2, '0');
+  return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;
+}
+
+/**
+ * 设置时间为当天的开始时间 (00:00:00.000)
+ * @param date Date对象
+ * @returns 设置后的Date对象
+ */
+export function setStartOfDay(date: Date): Date {
+  const timezoneDate = convertToTimezone(date);
+  timezoneDate.setHours(0, 0, 0, 0);
+  return timezoneDate;
+}
+
+/**
+ * 设置时间为当天的结束时间 (23:59:59.999)
+ * @param date Date对象
+ * @returns 设置后的Date对象
+ */
+export function setEndOfDay(date: Date): Date {
+  const timezoneDate = convertToTimezone(date);
+  timezoneDate.setHours(23, 59, 59, 999);
+  return timezoneDate;
+}
+
+/**
+ * 获取指定天数前的日期
+ * @param days 天数
+ * @returns 指定天数前的Date对象
+ */
+export function getDaysAgo(days: number): Date {
+  const date = getCurrentDateInTimezone();
+  date.setDate(date.getDate() - days);
+  return date;
+}
+
+/**
+ * 解析日期字符串为东八区Date对象
+ * @param dateStr 日期字符串 (支持 YYYY-MM-DD 或 YYYY-MM-DD HH:mm:ss 格式)
+ * @returns 解析后的Date对象
+ */
+export function parseDateString(dateStr: string): Date {
+  const date = new Date(dateStr);
+  return convertToTimezone(date);
+}

src/crawler/services/cdt_target.ts

@@ -139,7 +139,10 @@ export const CdtCrawler = {
       logger.log(`Navigating to ${this.url}...`);
       await delayRetry(
         async () => {
-          await page.goto(this.url, { waitUntil: 'networkidle2', timeout: 60000 });
+          await page.goto(this.url, {
+            waitUntil: 'networkidle2',
+            timeout: 60000,
+          });
         },
         3,
         5000,

src/crawler/services/ceic_target.ts

@@ -142,7 +142,10 @@ export const CeicCrawler = {
       logger.log(`Navigating to ${this.url}...`);
       await delayRetry(
         async () => {
-          await page.goto(this.url, { waitUntil: 'networkidle2', timeout: 60000 });
+          await page.goto(this.url, {
+            waitUntil: 'networkidle2',
+            timeout: 60000,
+          });
         },
         3,
         5000,

src/crawler/services/cgnpc_target.ts

@@ -148,7 +148,10 @@ export const CgnpcCrawler = {
       logger.log(`Navigating to ${this.url}...`);
       await delayRetry(
         async () => {
-          await page.goto(this.url, { waitUntil: 'networkidle2', timeout: 60000 });
+          await page.goto(this.url, {
+            waitUntil: 'networkidle2',
+            timeout: 60000,
+          });
         },
         3,
         5000,

src/crawler/services/chdtp_target.ts

@@ -134,7 +134,10 @@ export const ChdtpCrawler = {
       logger.log(`Navigating to ${this.url}...`);
       await delayRetry(
         async () => {
-          await page.goto(this.url, { waitUntil: 'networkidle2', timeout: 60000 });
+          await page.goto(this.url, {
+            waitUntil: 'networkidle2',
+            timeout: 60000,
+          });
         },
         3,
         5000,

src/crawler/services/cnncecp_target.ts

@@ -148,7 +148,10 @@ export const CnncecpCrawler = {
       logger.log(`Navigating to ${this.url}...`);
       await delayRetry(
         async () => {
-          await page.goto(this.url, { waitUntil: 'networkidle2', timeout: 60000 });
+          await page.goto(this.url, {
+            waitUntil: 'networkidle2',
+            timeout: 60000,
+          });
         },
         3,
         5000,

src/crawler/services/cnooc_target.ts

@@ -148,7 +148,10 @@ export const CnoocCrawler = {
       logger.log(`Navigating to ${this.url}...`);
       await delayRetry(
         async () => {
-          await page.goto(this.url, { waitUntil: 'networkidle2', timeout: 60000 });
+          await page.goto(this.url, {
+            waitUntil: 'networkidle2',
+            timeout: 60000,
+          });
         },
         3,
         5000,

src/crawler/services/eps_target.ts

@@ -148,7 +148,10 @@ export const EpsCrawler = {
       logger.log(`Navigating to ${this.url}...`);
       await delayRetry(
         async () => {
-          await page.goto(this.url, { waitUntil: 'networkidle2', timeout: 60000 });
+          await page.goto(this.url, {
+            waitUntil: 'networkidle2',
+            timeout: 60000,
+          });
         },
         3,
         5000,

src/crawler/services/powerbeijing_target.ts

@@ -148,7 +148,10 @@ export const PowerbeijingCrawler = {
       logger.log(`Navigating to ${this.url}...`);
       await delayRetry(
         async () => {
-          await page.goto(this.url, { waitUntil: 'networkidle2', timeout: 60000 });
+          await page.goto(this.url, {
+            waitUntil: 'networkidle2',
+            timeout: 60000,
+          });
         },
         3,
         5000,

src/crawler/services/sdicc_target.ts

@@ -148,7 +148,10 @@ export const SdiccCrawler = {
       logger.log(`Navigating to ${this.url}...`);
       await delayRetry(
         async () => {
-          await page.goto(this.url, { waitUntil: 'networkidle2', timeout: 60000 });
+          await page.goto(this.url, {
+            waitUntil: 'networkidle2',
+            timeout: 60000,
+          });
         },
         3,
         5000,

src/crawler/services/szecp_target.ts

@@ -142,7 +142,10 @@ export const SzecpCrawler = {
       logger.log(`Navigating to ${this.url}...`);
       await delayRetry(
         async () => {
-          await page.goto(this.url, { waitUntil: 'networkidle2', timeout: 60000 });
+          await page.goto(this.url, {
+            waitUntil: 'networkidle2',
+            timeout: 60000,
+          });
         },
         3,
         5000,

src/database/database.module.ts

@@ -20,6 +20,7 @@ import { ConfigModule, ConfigService } from '@nestjs/config';
         database: configService.get<string>('DATABASE_NAME', 'bidding'),
         entities: [__dirname + '/../**/*.entity{.ts,.js}'],
         synchronize: false,
+        timezone: '+08:00',
       }),
     }),
   ],