初始化：职引项目 v1.0

backend/src/modules/upload/upload.controller.ts

@@ -0,0 +1,60 @@
+import { Controller, Post, UseInterceptors, UploadedFile, HttpException, HttpStatus } from '@nestjs/common'
+import { FileInterceptor } from '@nestjs/platform-express'
+import * as mammoth from 'mammoth'
+import { memoryStorage } from 'multer'
+import { Public } from '../../common/decorators/public.decorator'
+
+// eslint-disable-next-line @typescript-eslint/no-var-requires
+const pdfParse = require('pdf-parse')
+
+@Controller('upload')
+export class UploadController {
+  @Public()
+  @Post()
+  @UseInterceptors(FileInterceptor('file', {
+    storage: memoryStorage(),
+    limits: { fileSize: 10 * 1024 * 1024 },
+  }))
+  async uploadFile(@UploadedFile() file: any) {
+    if (!file) {
+      throw new HttpException('请选择文件', HttpStatus.BAD_REQUEST)
+    }
+
+    const ext = file.originalname.toLowerCase().split('.').pop() || ''
+    let text = ''
+
+    try {
+      switch (ext) {
+        case 'pdf':
+          const pdfData = await pdfParse(file.buffer)
+          text = pdfData.text
+          break
+        case 'docx':
+          const docxResult = await mammoth.extractRawText({ buffer: file.buffer })
+          text = docxResult.value
+          break
+        case 'doc':
+          text = '[旧版 Word 格式 (.doc) 暂不支持解析，请转换为 .docx 或粘贴文本]'
+          break
+        case 'txt':
+          text = file.buffer.toString('utf-8')
+          break
+        default:
+          throw new HttpException('不支持的文件格式，请上传 PDF、DOCX 或 TXT', HttpStatus.BAD_REQUEST)
+      }
+    } catch (e: any) {
+      if (e instanceof HttpException) throw e
+      throw new HttpException('文件解析失败：' + (e.message || '未知错误'), HttpStatus.INTERNAL_SERVER_ERROR)
+    }
+
+    if (!text.trim()) {
+      throw new HttpException('未能从文件中提取到有效文本', HttpStatus.BAD_REQUEST)
+    }
+
+    return {
+      text: text.trim(),
+      fileName: file.originalname,
+      fileSize: file.size,
+    }
+  }
+}

backend/src/modules/upload/upload.module.ts

@@ -0,0 +1,12 @@
+import { Module } from '@nestjs/common'
+import { MulterModule } from '@nestjs/platform-express'
+import { memoryStorage } from 'multer'
+import { UploadController } from './upload.controller'
+
+@Module({
+  imports: [
+    MulterModule.register({ storage: memoryStorage() }),
+  ],
+  controllers: [UploadController],
+})
+export class UploadModule {}