93 lines
4.2 KiB
Python
93 lines
4.2 KiB
Python
import json
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import re
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from PyPDF2 import PdfReader
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from flask_app.general.json_utils import combine_json_results
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from flask_app.general.多线程提问 import multi_threading
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from flask_app.general.通义千问long import upload_file
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from flask_app.货物标.截取pdf货物标版 import extract_common_header, clean_page_content
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#正则表达式判断原文中是否有商务、服务、其他要求
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def find_exists(truncate_file, required_keys):
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common_header = extract_common_header(truncate_file)
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pdf_document = PdfReader(truncate_file)
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text = ""
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begin_pattern = re.compile(
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r'^第[一二三四五六七八九十百千]+(?:章|部分).*?(?:服务|项目|商务).*?要求|'
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r'^第[一二三四五六七八九十百千]+(?:章|部分).*?(?:采购|技术标准).*|'
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r'^[一二三四五六七八九十百千]+、\s*采购清单', re.MULTILINE)
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end_pattern = re.compile(
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r'^第[一二三四五六七八九十百千]+(?:章|部分)\s*[\u4e00-\u9fff]+', re.MULTILINE)
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for page in pdf_document.pages:
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page_text = page.extract_text() or ""
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cleaned_text = clean_page_content(page_text, common_header)
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text += cleaned_text + '\n'
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start_match = re.search(begin_pattern, text)
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if not start_match:
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return []
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start_index = start_match.end()
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end_match = re.search(end_pattern, text[start_index:])
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if end_match:
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end_index = start_index + end_match.start()
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relevant_text = text[start_index:end_index]
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else:
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relevant_text = text[start_index:]
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relevant_text=re.sub(r'\s+', '', relevant_text) #删除换行符 空格
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# print(relevant_text)
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# Custom logic for "服务要求"
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matched_requirements = []
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punctuation = r"[，。？！、；：,.?!]*"
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for req in required_keys:
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if re.search(re.escape(req), relevant_text):
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if req == "服务要求":
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# 提取所有包含"服务要求"的行
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lines = [line for line in relevant_text.split('\n') if req in line]
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# 检查是否存在'技术'紧跟在'服务要求'前面（中间只有标点，标点是可选的）
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pattern = r'技术\s*' + punctuation + re.escape(req)
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# 如果存在'技术'紧跟'服务要求'并且中间仅有标点（可选），则不添加该要求
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if not any(re.search(pattern, line) for line in lines):
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matched_requirements.append(req)
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else:
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matched_requirements.append(req)
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return matched_requirements
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def generate_queries(truncate_file, required_keys):
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key_list = find_exists(truncate_file, required_keys)
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queries = []
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user_query_template = "这是一份货物标中采购要求部分的内容，请告诉我\"{}\"是什么，请以json格式返回结果，外层键名是\"{}\"，内层键值对中的键是你对该要求的总结，而值需要完全与原文保持一致，不可擅自总结删减，注意你无需回答具体设备的技术要求。"
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for key in key_list:
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query_base = user_query_template.format(key, key)
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other_keys = [k for k in key_list if k != key]
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if other_keys:
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query_base += "也不需要回答\"{}\"中的内容，".format("\"和\"".join(other_keys))
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query_base += "若相关要求不存在，在键值中填'未知'。"
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queries.append(query_base)
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# print(query_base)
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return queries
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def get_business_requirements(truncate_file,file_id):
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required_keys = ["商务要求", "服务要求", "其他要求"]
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queries = generate_queries(truncate_file, required_keys)
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results = multi_threading(queries, "", file_id, 2)
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business_requirements = [res for _, res in results] if results else []
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# Combine and fill missing keys with default values
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final_res = combine_json_results(business_requirements)
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final_res.update({key: final_res.get(key, "") for key in required_keys})
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return final_res
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if __name__ == "__main__":
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truncate_file = "C:\\Users\\Administrator\\Desktop\\货物标\\output1\\2-招标文件_procurement.pdf"
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file_id = upload_file(truncate_file)
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res=get_business_requirements(truncate_file,file_id)
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print(json.dumps(res, ensure_ascii=False, indent=4))
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