646 lines
29 KiB
Python
646 lines
29 KiB
Python
"""
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文档生成服务 - 处理Word模板填充和MinIO文件上传
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"""
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import os
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import re
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import tempfile
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from typing import Dict, List, Optional
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from datetime import datetime, timedelta
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from pathlib import Path
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from docx import Document
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from minio import Minio
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from minio.error import S3Error
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import pymysql
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class DocumentService:
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"""文档生成服务类"""
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def __init__(self):
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# MinIO配置
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self.minio_config = {
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'endpoint': os.getenv('MINIO_ENDPOINT', 'minio.datacubeworld.com:9000'),
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'access_key': os.getenv('MINIO_ACCESS_KEY', 'JOLXFXny3avFSzB0uRA5'),
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'secret_key': os.getenv('MINIO_SECRET_KEY', 'G1BR8jStNfovkfH5ou39EmPl34E4l7dGrnd3Cz0I'),
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'secure': os.getenv('MINIO_SECURE', 'true').lower() == 'true'
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}
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self.bucket_name = os.getenv('MINIO_BUCKET', 'finyx')
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# 数据库配置
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self.db_config = {
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'host': os.getenv('DB_HOST', '152.136.177.240'),
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'port': int(os.getenv('DB_PORT', 5012)),
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'user': os.getenv('DB_USER', 'finyx'),
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'password': os.getenv('DB_PASSWORD', '6QsGK6MpePZDE57Z'),
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'database': os.getenv('DB_NAME', 'finyx'),
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'charset': 'utf8mb4'
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}
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self.tenant_id = 615873064429507639
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def get_connection(self):
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"""获取数据库连接"""
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return pymysql.connect(**self.db_config)
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def get_minio_client(self):
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"""获取MinIO客户端"""
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return Minio(
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self.minio_config['endpoint'],
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access_key=self.minio_config['access_key'],
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secret_key=self.minio_config['secret_key'],
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secure=self.minio_config['secure']
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)
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def get_file_config_by_id(self, file_id: int) -> Optional[Dict]:
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"""
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根据文件ID获取文件配置
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Args:
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file_id: 文件配置ID
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Returns:
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文件配置信息，包含: id, name, file_path
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"""
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conn = self.get_connection()
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cursor = conn.cursor(pymysql.cursors.DictCursor)
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try:
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sql = """
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SELECT id, name, file_path
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FROM f_polic_file_config
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WHERE id = %s
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AND tenant_id = %s
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AND state = 1
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"""
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cursor.execute(sql, (file_id, self.tenant_id))
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config = cursor.fetchone()
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if config:
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return {
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'id': config['id'],
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'name': config['name'],
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'file_path': config['file_path']
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}
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return None
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finally:
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cursor.close()
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conn.close()
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def download_template_from_minio(self, file_path: str) -> str:
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"""
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从MinIO下载模板文件到临时目录
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Args:
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file_path: MinIO中的相对路径，如 '/615873064429507639/TEMPLATE/2024/11/初步核实审批表模板.docx'
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Returns:
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本地临时文件路径
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"""
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# 检查file_path是否为None或空
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if not file_path:
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raise Exception("模板文件路径不能为空，请检查数据库中模板配置的file_path字段")
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client = self.get_minio_client()
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# 创建临时文件
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temp_dir = tempfile.gettempdir()
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temp_file = os.path.join(temp_dir, f"template_{datetime.now().strftime('%Y%m%d%H%M%S')}.docx")
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try:
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# 从相对路径中提取对象名称（去掉开头的/）
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object_name = file_path.lstrip('/')
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# 下载文件
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client.fget_object(self.bucket_name, object_name, temp_file)
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return temp_file
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except S3Error as e:
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raise Exception(f"从MinIO下载模板文件失败: {str(e)}")
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def fill_template(self, template_path: str, field_data: Dict[str, str]) -> str:
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"""
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填充Word模板中的占位符
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Args:
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template_path: 模板文件路径
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field_data: 字段数据字典，格式: {'field_code': 'field_value'}
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Returns:
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填充后的文档路径
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"""
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try:
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print(f"[DEBUG] 开始填充模板: {template_path}")
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print(f"[DEBUG] 传入的字段数据: {field_data}")
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# 打开模板文档
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doc = Document(template_path)
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print(f"[DEBUG] 文档包含 {len(doc.paragraphs)} 个段落, {len(doc.tables)} 个表格")
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# 第一步：扫描模板文档，找出所有占位符（格式：{{field_code}}）
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# 使用正则表达式匹配所有占位符
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placeholder_pattern = re.compile(r'\{\{([^}]+)\}\}')
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all_placeholders_in_template = set()
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# 扫描段落中的占位符
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for paragraph in doc.paragraphs:
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text = paragraph.text
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matches = placeholder_pattern.findall(text)
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for match in matches:
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field_code = match.strip()
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if field_code:
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all_placeholders_in_template.add(field_code)
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# 扫描表格中的占位符
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for table in doc.tables:
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for row in table.rows:
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for cell in row.cells:
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if hasattr(cell, 'paragraphs'):
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for paragraph in cell.paragraphs:
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text = paragraph.text
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matches = placeholder_pattern.findall(text)
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for match in matches:
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field_code = match.strip()
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if field_code:
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all_placeholders_in_template.add(field_code)
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print(f"[DEBUG] 模板中发现 {len(all_placeholders_in_template)} 个不同的占位符: {sorted(all_placeholders_in_template)}")
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# 第二步：对于模板中存在的占位符，如果field_data中没有对应的值，则使用空字符串
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# 创建一个完整的字段数据字典，包含所有需要的字段
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complete_field_data = {}
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for field_code in all_placeholders_in_template:
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# 如果传入的数据中有该字段，使用传入的值；否则使用空字符串
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complete_field_data[field_code] = field_data.get(field_code, '')
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# 同时保留传入的字段数据（可能包含模板中没有的字段，虽然不会使用，但保留以兼容）
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for field_code, field_value in field_data.items():
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if field_code not in complete_field_data:
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complete_field_data[field_code] = field_value or ''
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print(f"[DEBUG] 完整的字段数据（包含默认空值）: {complete_field_data}")
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print(f"[DEBUG] 补充的空值字段: {sorted(set(complete_field_data.keys()) - set(field_data.keys()))}")
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# 使用完整的字段数据进行替换
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field_data = complete_field_data
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def replace_placeholder_in_paragraph(paragraph):
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"""在段落中替换占位符，保持原有格式（处理跨run的情况）"""
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try:
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# 获取段落完整文本
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full_text = paragraph.text
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if not full_text:
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return
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# 检查是否有占位符需要替换
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has_placeholder = False
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for field_code in field_data.keys():
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placeholder = f"{{{{{field_code}}}}}"
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if placeholder in full_text:
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has_placeholder = True
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break
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if not has_placeholder:
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return
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# 收集所有runs及其位置和格式信息
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runs_info = []
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current_pos = 0
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for run in paragraph.runs:
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run_text = run.text
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run_start = current_pos
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run_end = current_pos + len(run_text)
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# 保存run的格式信息
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format_info = {}
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try:
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if run.font.name:
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format_info['font_name'] = run.font.name
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if run.font.size:
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format_info['font_size'] = run.font.size
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if run.bold is not None:
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format_info['bold'] = run.bold
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if run.italic is not None:
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format_info['italic'] = run.italic
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if run.underline is not None:
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format_info['underline'] = run.underline
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if run.font.color and run.font.color.rgb:
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format_info['color'] = run.font.color.rgb
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except:
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pass
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runs_info.append({
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'run': run,
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'text': run_text,
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'start': run_start,
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'end': run_end,
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'format': format_info
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})
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current_pos = run_end
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# 执行所有替换，构建最终文本
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final_text = full_text
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replacement_count = 0
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for field_code, field_value in field_data.items():
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placeholder = f"{{{{{field_code}}}}}"
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replacement_value = str(field_value) if field_value else ''
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# 替换所有出现的占位符
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while placeholder in final_text:
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final_text = final_text.replace(placeholder, replacement_value, 1)
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replacement_count += 1
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print(f"[DEBUG] 替换占位符: {placeholder} -> '{replacement_value}'")
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# 找到包含占位符的第一个run，使用它的格式
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placeholder_run_format = None
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for run_info in runs_info:
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run_text = run_info['text']
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# 检查这个run是否包含任何占位符
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for field_code in field_data.keys():
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placeholder = f"{{{{{field_code}}}}}"
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if placeholder in run_text:
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placeholder_run_format = run_info['format']
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break
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if placeholder_run_format:
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break
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# 如果没有找到包含占位符的run，使用第一个run的格式
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if not placeholder_run_format and runs_info:
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placeholder_run_format = runs_info[0]['format']
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# 如果只有一个run，直接替换文本（会自动保持格式）
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if len(runs_info) == 1:
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runs_info[0]['run'].text = final_text
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else:
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# 多个run的情况：合并为一个run，保持格式
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# 先清空所有runs
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for run_info in runs_info:
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run_info['run'].text = ''
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# 在第一个run中添加替换后的文本
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first_run = runs_info[0]['run']
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first_run.text = final_text
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# 应用格式（使用包含占位符的run的格式，或第一个run的格式）
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if placeholder_run_format:
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try:
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if 'font_name' in placeholder_run_format:
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first_run.font.name = placeholder_run_format['font_name']
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if 'font_size' in placeholder_run_format:
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first_run.font.size = placeholder_run_format['font_size']
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if 'bold' in placeholder_run_format:
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first_run.bold = placeholder_run_format['bold']
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if 'italic' in placeholder_run_format:
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first_run.italic = placeholder_run_format['italic']
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if 'underline' in placeholder_run_format:
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first_run.underline = placeholder_run_format['underline']
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if 'color' in placeholder_run_format:
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first_run.font.color.rgb = placeholder_run_format['color']
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except Exception as fmt_error:
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print(f"[WARN] 应用格式时出错: {str(fmt_error)}")
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# 删除其他空的runs（从后往前删除，避免索引问题）
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for i in range(len(runs_info) - 1, 0, -1):
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run_element = runs_info[i]['run']._element
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try:
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paragraph._element.remove(run_element)
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except:
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pass
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print(f"[DEBUG] 段落替换了 {replacement_count} 个占位符（保持格式）: '{full_text[:50]}...' -> '{final_text[:50]}...'")
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except Exception as e:
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# 如果单个段落处理失败，记录错误但继续处理其他段落
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print(f"[WARN] 处理段落时出错: {str(e)}")
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import traceback
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print(traceback.format_exc())
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pass
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# 统计替换信息
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total_replacements = 0
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replaced_placeholders = set()
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# 替换段落中的占位符
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for para_idx, paragraph in enumerate(doc.paragraphs):
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before_text = paragraph.text
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replace_placeholder_in_paragraph(paragraph)
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after_text = paragraph.text
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if before_text != after_text:
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# 检查哪些占位符被替换了
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for field_code in field_data.keys():
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placeholder = f"{{{{{field_code}}}}}"
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if placeholder in before_text and placeholder not in after_text:
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replaced_placeholders.add(field_code)
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total_replacements += before_text.count(placeholder)
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# 替换表格中的占位符
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try:
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for table in doc.tables:
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if not table.rows:
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continue
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for row in table.rows:
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if not row.cells:
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continue
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for cell in row.cells:
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try:
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# 检查cell是否有paragraphs属性且不为空
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if hasattr(cell, 'paragraphs'):
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# 安全地获取paragraphs列表
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paragraphs = list(cell.paragraphs) if cell.paragraphs else []
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for paragraph in paragraphs:
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before_text = paragraph.text
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replace_placeholder_in_paragraph(paragraph)
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after_text = paragraph.text
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if before_text != after_text:
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# 检查哪些占位符被替换了
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for field_code in field_data.keys():
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placeholder = f"{{{{{field_code}}}}}"
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if placeholder in before_text and placeholder not in after_text:
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replaced_placeholders.add(field_code)
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total_replacements += before_text.count(placeholder)
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except Exception as e:
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# 如果单个单元格处理失败，记录错误但继续处理其他单元格
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print(f"[WARN] 处理表格单元格时出错: {str(e)}")
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pass
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except Exception as e:
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# 如果表格处理失败，记录错误但继续保存文档
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print(f"[WARN] 处理表格时出错: {str(e)}")
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pass
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# 第三步：验证是否还有未替换的占位符（使用正则表达式匹配所有可能的占位符）
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remaining_placeholders = set()
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for paragraph in doc.paragraphs:
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text = paragraph.text
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matches = placeholder_pattern.findall(text)
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for match in matches:
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field_code = match.strip()
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if field_code:
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remaining_placeholders.add(field_code)
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# 检查表格中的占位符
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for table in doc.tables:
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for row in table.rows:
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for cell in row.cells:
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if hasattr(cell, 'paragraphs'):
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for paragraph in cell.paragraphs:
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text = paragraph.text
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matches = placeholder_pattern.findall(text)
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for match in matches:
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field_code = match.strip()
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if field_code:
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remaining_placeholders.add(field_code)
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# 输出统计信息
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print(f"[DEBUG] 占位符替换统计:")
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print(f" - 模板中的占位符总数: {len(all_placeholders_in_template)}")
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print(f" - 已替换的占位符: {sorted(replaced_placeholders)}")
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print(f" - 总替换次数: {total_replacements}")
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if remaining_placeholders:
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print(f" - ⚠️ 仍有未替换的占位符: {sorted(remaining_placeholders)}")
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print(f" - ⚠️ 警告：文档中仍存在占位符，可能格式不正确或替换逻辑有问题")
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else:
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print(f" - ✓ 所有占位符已成功替换")
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# 保存到临时文件
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temp_dir = tempfile.gettempdir()
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output_file = os.path.join(temp_dir, f"filled_{datetime.now().strftime('%Y%m%d%H%M%S')}.docx")
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doc.save(output_file)
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print(f"[DEBUG] 文档已保存到: {output_file}")
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return output_file
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except IndexError as e:
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# 索引越界错误，提供更详细的错误信息
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import traceback
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error_detail = traceback.format_exc()
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raise Exception(f"填充模板失败: list index out of range. 详细信息: {str(e)}\n{error_detail}")
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except Exception as e:
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# 其他错误，提供详细的错误信息
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import traceback
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error_detail = traceback.format_exc()
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raise Exception(f"填充模板失败: {str(e)}\n{error_detail}")
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def upload_to_minio(self, file_path: str, file_name: str) -> str:
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"""
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上传文件到MinIO
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Args:
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file_path: 本地文件路径
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file_name: 文件名称
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Returns:
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MinIO中的相对路径
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"""
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client = self.get_minio_client()
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try:
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# 生成MinIO对象路径（相对路径）
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now = datetime.now()
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# 使用日期路径组织文件，添加微秒确保唯一性
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timestamp = f"{now.strftime('%Y%m%d%H%M%S')}{now.microsecond:06d}"
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object_name = f"{self.tenant_id}/{timestamp}/{file_name}"
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# 上传文件
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client.fput_object(
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self.bucket_name,
|
||
object_name,
|
||
file_path,
|
||
content_type='application/vnd.openxmlformats-officedocument.wordprocessingml.document'
|
||
)
|
||
|
||
# 返回相对路径（以/开头）
|
||
return f"/{object_name}"
|
||
|
||
except S3Error as e:
|
||
raise Exception(f"上传文件到MinIO失败: {str(e)}")
|
||
|
||
def generate_document(self, file_id: int, input_data: List[Dict], file_info: Dict) -> Dict:
|
||
"""
|
||
生成文档
|
||
|
||
Args:
|
||
file_id: 文件配置ID
|
||
input_data: 输入数据列表，格式: [{'fieldCode': 'xxx', 'fieldValue': 'xxx'}]
|
||
file_info: 文件信息，格式: {'fileId': 1, 'fileName': 'xxx.doc'}
|
||
|
||
Returns:
|
||
生成结果，包含: filePath
|
||
"""
|
||
# 获取文件配置
|
||
file_config = self.get_file_config_by_id(file_id)
|
||
if not file_config:
|
||
# 提供更详细的错误信息
|
||
raise Exception(
|
||
f"文件ID {file_id} 对应的模板不存在或未启用。"
|
||
f"请通过查询 f_polic_file_config 表获取有效的文件ID，"
|
||
f"或访问 /api/file-configs 接口查看可用的文件配置列表。"
|
||
)
|
||
|
||
# 检查file_path是否存在
|
||
file_path = file_config.get('file_path')
|
||
if not file_path:
|
||
raise Exception(f"文件ID {file_id} ({file_config.get('name', '')}) 的文件路径(file_path)为空，请检查数据库配置")
|
||
|
||
# 将input_data转换为字典格式
|
||
field_data = {}
|
||
for item in input_data:
|
||
field_code = item.get('fieldCode', '')
|
||
field_value = item.get('fieldValue', '')
|
||
if field_code:
|
||
field_data[field_code] = field_value or ''
|
||
|
||
# 下载模板
|
||
template_path = None
|
||
filled_doc_path = None
|
||
try:
|
||
template_path = self.download_template_from_minio(file_path)
|
||
|
||
# 填充模板
|
||
filled_doc_path = self.fill_template(template_path, field_data)
|
||
|
||
# 生成文档名称（.docx格式）
|
||
# 优先使用file_info中的fileName，如果没有则使用数据库中的name
|
||
# 确保每个文件都使用自己的文件名
|
||
original_file_name = file_info.get('fileName') or file_info.get('name') or file_config.get('name', 'generated.doc')
|
||
print(f"[DEBUG] 文件ID: {file_id}, 原始文件名: {original_file_name}")
|
||
print(f"[DEBUG] file_info内容: {file_info}")
|
||
print(f"[DEBUG] file_config内容: {file_config}")
|
||
print(f"[DEBUG] 字段数据用于生成文档名: {field_data}")
|
||
generated_file_name = self.generate_document_name(original_file_name, field_data)
|
||
print(f"[DEBUG] 文件ID: {file_id}, 生成的文档名: {generated_file_name}")
|
||
|
||
# 上传到MinIO（使用生成的文档名）
|
||
file_path = self.upload_to_minio(filled_doc_path, generated_file_name)
|
||
|
||
# 生成预签名下载URL
|
||
download_url = self.generate_presigned_download_url(file_path)
|
||
|
||
return {
|
||
'filePath': file_path,
|
||
'fileName': generated_file_name, # 返回生成的文档名
|
||
'downloadUrl': download_url # 返回预签名下载URL
|
||
}
|
||
|
||
finally:
|
||
# 清理临时文件
|
||
if template_path and os.path.exists(template_path):
|
||
try:
|
||
os.remove(template_path)
|
||
except:
|
||
pass
|
||
if filled_doc_path and os.path.exists(filled_doc_path):
|
||
try:
|
||
os.remove(filled_doc_path)
|
||
except:
|
||
pass
|
||
|
||
def generate_document_id(self) -> str:
|
||
"""生成文档ID"""
|
||
now = datetime.now()
|
||
return f"DOC{now.strftime('%Y%m%d%H%M%S')}{str(now.microsecond)[:3]}"
|
||
|
||
def generate_document_name(self, original_file_name: str, field_data: Dict[str, str]) -> str:
|
||
"""
|
||
生成文档名称
|
||
|
||
Args:
|
||
original_file_name: 原始文件名称
|
||
field_data: 字段数据
|
||
|
||
Returns:
|
||
生成的文档名称，如 "请示报告卡_张三.docx"
|
||
"""
|
||
import re
|
||
|
||
# 提取文件基础名称（不含扩展名）
|
||
# 处理可能包含路径的情况
|
||
# 先移除路径，只保留文件名
|
||
file_name_only = Path(original_file_name).name
|
||
|
||
# 判断是否有扩展名（.doc, .docx等）
|
||
# 如果最后有常见的文档扩展名，则提取stem
|
||
if file_name_only.lower().endswith(('.doc', '.docx', '.txt', '.pdf')):
|
||
base_name = Path(file_name_only).stem
|
||
else:
|
||
# 如果没有扩展名，直接使用文件名
|
||
base_name = file_name_only
|
||
|
||
print(f"[DEBUG] 原始文件名: '{original_file_name}'")
|
||
print(f"[DEBUG] 提取的基础名称（清理前）: '{base_name}'")
|
||
|
||
# 清理文件名中的特殊标记
|
||
# 1. 移除开头的数字和点（如 "1."、"2." 等），但保留后面的内容
|
||
# 使用非贪婪匹配，只匹配开头的数字和点
|
||
base_name = re.sub(r'^\d+\.\s*', '', base_name)
|
||
|
||
# 2. 移除括号及其内容（如 "（XXX）"、"（初核谈话）" 等）
|
||
base_name = re.sub(r'[（(].*?[）)]', '', base_name)
|
||
|
||
# 3. 清理首尾空白字符和多余的点
|
||
base_name = base_name.strip().strip('.')
|
||
|
||
# 4. 如果清理后为空或只有数字，使用原始文件名重新处理
|
||
if not base_name or base_name.isdigit():
|
||
print(f"[DEBUG] 清理后为空或只有数字，重新处理原始文件名")
|
||
# 从原始文件名中提取，但保留更多内容
|
||
temp_name = file_name_only
|
||
# 只移除括号，保留数字前缀（但格式化为更友好的形式）
|
||
temp_name = re.sub(r'[（(].*?[）)]', '', temp_name)
|
||
# 移除扩展名（如果存在）
|
||
if temp_name.lower().endswith(('.doc', '.docx', '.txt', '.pdf')):
|
||
temp_name = Path(temp_name).stem
|
||
temp_name = temp_name.strip().strip('.')
|
||
if temp_name:
|
||
base_name = temp_name
|
||
else:
|
||
base_name = "文档" # 最后的备选方案
|
||
|
||
print(f"[DEBUG] 清理后的基础名称: '{base_name}'")
|
||
|
||
# 尝试从字段数据中提取被核查人姓名作为后缀
|
||
suffix = ''
|
||
target_name = field_data.get('target_name', '')
|
||
if target_name and target_name.strip():
|
||
suffix = f"_{target_name.strip()}"
|
||
|
||
# 生成新文件名（确保是.docx格式）
|
||
generated_name = f"{base_name}{suffix}.docx"
|
||
print(f"[DEBUG] 文档名称生成: '{original_file_name}' -> '{generated_name}' (base_name='{base_name}', suffix='{suffix}')")
|
||
|
||
return generated_name
|
||
|
||
def generate_presigned_download_url(self, file_path: str, expires_days: int = 7) -> Optional[str]:
|
||
"""
|
||
生成MinIO预签名下载URL
|
||
|
||
Args:
|
||
file_path: MinIO中的相对路径，如 '/615873064429507639/20251205090700/初步核实审批表_张三.docx'
|
||
expires_days: URL有效期（天数），默认7天
|
||
|
||
Returns:
|
||
预签名下载URL，如果生成失败则返回None
|
||
"""
|
||
try:
|
||
if not file_path:
|
||
return None
|
||
|
||
client = self.get_minio_client()
|
||
|
||
# 从相对路径中提取对象名称（去掉开头的/）
|
||
object_name = file_path.lstrip('/')
|
||
|
||
# 生成预签名URL
|
||
url = client.presigned_get_object(
|
||
self.bucket_name,
|
||
object_name,
|
||
expires=timedelta(days=expires_days)
|
||
)
|
||
|
||
return url
|
||
|
||
except Exception as e:
|
||
# 如果生成URL失败，记录错误但不影响主流程
|
||
print(f"生成预签名URL失败: {str(e)}")
|
||
return None
|
||
|