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feat: 全面优化爬虫系统和数据处理能力

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- 增强数据重试机制：对数据为0的爬虫自动重试，提高数据完整性
- 优化前端筛选逻辑：改进日期筛选，只限制开始时间，更灵活的数据查看
- 新增最近数据接口：添加 /api/bids/recent 获取30天内最新招标数据
- 改进统计展示：实时显示筛选结果数量，优化用户体验
- 完善日志系统：确保日志目录自动创建，避免启动错误
- 增强独立脚本：使用自定义logger，完善错误处理和程序关闭
- 优化主程序：集成自定义日志服务，统一日志格式
- 扩展npm脚本：新增 web 命令用于构建前端
- 改进大唐爬虫：延长等待时间到60秒，提高页面加载成功率
- 优化数据筛选：今日招标改为使用独立接口，提升性能
This commit is contained in:
dmy
2026-01-12 12:28:37 +08:00
parent 3e6456e120
commit 1b28a3462a
10 changed files with 104 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
frontend/index.html
View File

@@ -4,7 +4,7 @@
<meta charset="UTF-8" />
<link rel="icon" type="image/svg+xml" href="/vite.svg" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>frontend</title>
<title>投标</title>
</head>
<body>
<div id="app"></div>

45
frontend/src/App.vue
View File

@@ -188,7 +188,7 @@
</template>
<script setup lang="ts">
import { ref, onMounted, reactive, computed, watch, nextTick } from 'vue'
import { ref, onMounted, reactive, computed, watch } from 'vue'
import axios from 'axios'
import { ElMessage } from 'element-plus'
import { DataBoard, Document, Setting, Refresh } from '@element-plus/icons-vue'
@@ -285,26 +285,22 @@ const setLast3Days = () => {
console.log('setLast3Days called, todayBids:', todayBids.value.length, 'dateRange:', dateRange.value)
// 直接计算筛选结果并显示提示
// 直接计算筛选结果并显示提示（只限制开始时间，不限制结束时间）
const start = new Date(startDate)
start.setHours(0, 0, 0, 0)
const end = new Date(endDate)
end.setHours(23, 59, 59, 999)
let result = todayBids.value
result = result.filter(bid => {
if (!bid.publishDate) return false
const bidDate = new Date(bid.publishDate)
return bidDate >= start && bidDate <= end
return bidDate >= start
})
const totalBids = todayBids.value.length
const filteredCount = result.length
console.log('setLast3Days result, totalBids:', totalBids, 'filteredCount:', filteredCount)
if (totalBids > 0) {
ElMessage.info(`筛选结果：共 ${filteredCount} 条数据（总共 ${totalBids} 条）`)
} else {
if (totalBids === 0) {
ElMessage.warning('暂无数据，请先抓取数据')
}
}
@@ -326,26 +322,22 @@ const setLast7Days = () => {
console.log('setLast7Days called, todayBids:', todayBids.value.length, 'dateRange:', dateRange.value)
// 直接计算筛选结果并显示提示
// 直接计算筛选结果并显示提示（只限制开始时间，不限制结束时间）
const start = new Date(startDate)
start.setHours(0, 0, 0, 0)
const end = new Date(endDate)
end.setHours(23, 59, 59, 999)
let result = todayBids.value
result = result.filter(bid => {
if (!bid.publishDate) return false
const bidDate = new Date(bid.publishDate)
return bidDate >= start && bidDate <= end
return bidDate >= start
})
const totalBids = todayBids.value.length
const filteredCount = result.length
console.log('setLast7Days result, totalBids:', totalBids, 'filteredCount:', filteredCount)
if (totalBids > 0) {
ElMessage.info(`筛选结果：共 ${filteredCount} 条数据（总共 ${totalBids} 条）`)
} else {
if (totalBids === 0) {
ElMessage.warning('暂无数据，请先抓取数据')
}
}
@@ -368,18 +360,16 @@ const filteredTodayBids = computed(() => {
})
}
// 按日期范围筛选
// 按日期范围筛选（只限制开始时间，不限制结束时间）
if (dateRange.value && dateRange.value.length === 2) {
const [startDate, endDate] = dateRange.value
const [startDate] = dateRange.value
result = result.filter(bid => {
if (!bid.publishDate) return false
const bidDate = new Date(bid.publishDate)
const start = new Date(startDate)
const end = new Date(endDate)
// 设置时间为当天的开始和结束
// 设置时间为当天的开始
start.setHours(0, 0, 0, 0)
end.setHours(23, 59, 59, 999)
return bidDate >= start && bidDate <= end
return bidDate >= start
})
}
@@ -399,7 +389,7 @@ watch(filteredTodayBids, (newFilteredBids) => {
const fetchData = async () => {
loading.value = true
try {
const [bidsRes, highRes, kwRes, sourcesRes, statusRes] = await Promise.all([
const [bidsRes, recentRes, highRes, kwRes, sourcesRes, statusRes] = await Promise.all([
axios.get('/api/bids', {
params: {
page: currentPage.value,
@@ -407,6 +397,7 @@ const fetchData = async () => {
source: selectedSource.value || undefined
}
}),
axios.get('/api/bids/recent'),
axios.get('/api/bids/high-priority'),
axios.get('/api/keywords'),
axios.get('/api/bids/sources'),
@@ -414,19 +405,11 @@ const fetchData = async () => {
])
bids.value = bidsRes.data.items
total.value = bidsRes.data.total
todayBids.value = recentRes.data
highPriorityBids.value = highRes.data
keywords.value = kwRes.data
sourceOptions.value = sourcesRes.data
isCrawling.value = statusRes.data.isCrawling
// 过滤今天的数据用于 Today's Bids
const today = new Date()
today.setHours(0, 0, 0, 0)
todayBids.value = bidsRes.data.items.filter((bid: any) => {
if (!bid.publishDate) return false
const bidDate = new Date(bid.publishDate)
return bidDate >= today
})
} catch (error) {
ElMessage.error('Failed to fetch data')
} finally {

3
package.json
View File

@@ -18,7 +18,8 @@
"test:cov": "jest --coverage",
"test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",
"test:e2e": "jest --config ./test/jest-e2e.json",
"crawl": "ts-node -r tsconfig-paths/register src/scripts/crawl.ts"
"crawl": "ts-node -r tsconfig-paths/register src/scripts/crawl.ts",
"web":"npm --prefix frontend run build"
},
"dependencies": {
"@nestjs/common": "^11.0.1",

5
src/bids/controllers/bid.controller.ts
View File

@@ -10,6 +10,11 @@ export class BidsController {
return this.bidsService.findAll(query);
}
@Get('recent')
getRecent() {
return this.bidsService.getRecentBids();
}
@Get('high-priority')
getHighPriority() {
return this.bidsService.getHighPriorityCorrected();

14
src/bids/services/bid.service.ts
View File

@@ -1,6 +1,6 @@
import { Injectable } from '@nestjs/common';
import { InjectRepository } from '@nestjs/typeorm';
import { Repository, LessThan } from 'typeorm';
import { Repository, LessThan, MoreThanOrEqual } from 'typeorm';
import { BidItem } from '../entities/bid-item.entity';
@Injectable()
@@ -75,4 +75,16 @@ export class BidsService {
.getRawMany();
return result.map((item: any) => item.source);
}
async getRecentBids() {
const thirtyDaysAgo = new Date();
thirtyDaysAgo.setDate(thirtyDaysAgo.getDate() - 30);
thirtyDaysAgo.setHours(0, 0, 0, 0);
return this.bidRepository
.createQueryBuilder('bid')
.where('bid.publishDate >= :thirtyDaysAgo', { thirtyDaysAgo })
.orderBy('bid.publishDate', 'DESC')
.getMany();
}
}

6
src/common/logger/winston.config.ts
View File

@@ -1,9 +1,15 @@
import * as winston from 'winston';
import DailyRotateFile from 'winston-daily-rotate-file';
import * as path from 'path';
import * as fs from 'fs';
const logDir = path.join(process.cwd(), 'logs');
// 确保日志目录存在
if (!fs.existsSync(logDir)) {
fs.mkdirSync(logDir, { recursive: true });
}
// 日志格式
const logFormat = winston.format.combine(
winston.format.timestamp({ format: 'YYYY-MM-DD HH:mm:ss' }),

47
src/crawler/services/bid-crawler.service.ts
View File

@@ -32,6 +32,9 @@ export class BidCrawlerService {
// 统计结果
const crawlResults: Record<string, { success: number; error?: string }> = {};
// 记录数据为0的爬虫，用于重试
const zeroDataCrawlers: any[] = [];
// 从环境变量读取代理配置
const proxyHost = this.configService.get<string>('PROXY_HOST');
const proxyPort = this.configService.get<string>('PROXY_PORT');
@@ -83,6 +86,11 @@ export class BidCrawlerService {
// 记录成功数量
crawlResults[crawler.name] = { success: results.length };
// 如果数据为0，记录下来用于重试
if (results.length === 0) {
zeroDataCrawlers.push(crawler);
}
for (const item of results) {
await this.bidsService.createOrUpdate({
title: item.title,
@@ -98,6 +106,45 @@ export class BidCrawlerService {
crawlResults[crawler.name] = { success: 0, error: err.message };
}
}
// 对数据为0的爬虫进行重试
if (zeroDataCrawlers.length > 0) {
this.logger.log(`Retrying ${zeroDataCrawlers.length} crawlers with zero data...`);
for (const crawler of zeroDataCrawlers) {
this.logger.log(`Retrying: ${crawler.name}`);
// 检查是否超时
const elapsedTime = Date.now() - startTime;
if (elapsedTime > maxExecutionTime) {
this.logger.warn(`⚠️ Crawl task exceeded maximum execution time of 3 hours. Stopping retry...`);
this.logger.warn(`⚠️ Total elapsed time: ${Math.floor(elapsedTime / 1000 / 60)} minutes`);
break;
}
try {
const results = await crawler.crawl(browser);
this.logger.log(`Retry extracted ${results.length} items from ${crawler.name}`);
// 更新统计结果
crawlResults[crawler.name] = { success: results.length };
for (const item of results) {
await this.bidsService.createOrUpdate({
title: item.title,
url: item.url,
publishDate: item.publishDate,
source: crawler.name,
unit: '',
});
}
} catch (err) {
this.logger.error(`Error retrying ${crawler.name}: ${err.message}`);
// 记录错误信息
crawlResults[crawler.name] = { success: 0, error: err.message };
}
}
}
} catch (error) {
this.logger.error(`Crawl task failed: ${error.message}`);
} finally {

2
src/crawler/services/cdt_target.ts
View File

@@ -89,7 +89,7 @@ export const CdtCrawler = {
await page.waitForFunction(() => {
const tabs = Array.from(document.querySelectorAll('span.notice-tab'));
return tabs.some(tab => tab.textContent && tab.textContent.includes('招标公告'));
}, { timeout: 30000 });
}, { timeout: 60000 });
await page.evaluate(() => {
const tabs = Array.from(document.querySelectorAll('span.notice-tab'));

6
src/main.ts
View File

@@ -1,8 +1,14 @@
import { NestFactory } from '@nestjs/core';
import { AppModule } from './app.module';
import { CustomLogger } from './common/logger/logger.service';
async function bootstrap() {
const app = await NestFactory.create(AppModule);
// 使用自定义日志服务
const logger = await app.resolve(CustomLogger);
app.useLogger(logger);
await app.listen(process.env.PORT ?? 3000);
}
bootstrap();

13
src/scripts/crawl.ts
View File

@@ -1,14 +1,18 @@
import { NestFactory } from '@nestjs/core';
import { AppModule } from '../app.module';
import { BidCrawlerService } from '../crawler/services/bid-crawler.service';
import { Logger } from '@nestjs/common';
import { CustomLogger } from '../common/logger/logger.service';
async function runCrawler() {
const logger = new Logger('CrawlScript');
const app = await NestFactory.createApplicationContext(AppModule);
// 设置自定义 logger，使 NestJS 框架日志也输出到文件
const logger = await app.resolve(CustomLogger);
app.useLogger(logger);
logger.setContext('CrawlScript');
try {
const app = await NestFactory.createApplicationContext(AppModule);
const crawlerService = app.get(BidCrawlerService);
const crawlerService = await app.resolve(BidCrawlerService);
logger.log('Starting crawler...');
await crawlerService.crawlAll();
@@ -18,6 +22,7 @@ async function runCrawler() {
process.exit(0);
} catch (error) {
logger.error('Crawler failed:', error);
await app.close();
process.exit(1);
}
}