更新爬虫方案文档,增加服务与支持-详细页面的输出信息;优化基础爬虫类,增强标题提取和内容去重逻辑;根据doc2md.py调整图片处理逻辑以改善Word文档生成效果。

This commit is contained in:
oy2020
2026-01-31 09:30:33 +08:00
parent 3670129972
commit 3c625d1c3a
5 changed files with 332 additions and 58 deletions

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@@ -27,14 +27,17 @@ crawl/
| 常见问题 | `python main.py issue` | 32篇 | ✅ 完成 | | 常见问题 | `python main.py issue` | 32篇 | ✅ 完成 |
| 企业新闻 | `python main.py news` | 11篇 | ✅ 完成 | | 企业新闻 | `python main.py news` | 11篇 | ✅ 完成 |
| 认证与资质 | `python main.py certification` | 10篇 | ✅ 完成 | | 认证与资质 | `python main.py certification` | 10篇 | ✅ 完成 |
| 机器人关节 | `python main.py erob` | 11篇 | ✅ 完成 | | 机器人关节 | `python main.py erob` | 12篇 | ✅ 完成 |
| 编码器 | `python main.py ecoder` | 7篇 | ✅ 完成 | | 编码器 | `python main.py ecoder` | 7篇 | ✅ 完成 |
| 配件 | `python main.py tools` | 13篇 | ✅ 完成 | | 配件 | `python main.py tools` | 13篇 | ✅ 完成 |
| 关于我们 | `python main.py about` | 2篇 | ✅ 完成 | | 关于我们 | `python main.py about` | 2篇 | ✅ 完成 |
| 服务与支持 | `python main.py support` | 1篇 | ✅ 完成 | | 服务与支持 | `python main.py support` | 1篇 | ✅ 完成 |
| 服务与支持-详细页面 | `python main.py service_detail` | 7篇 | ✅ 完成 |
| 资料下载 | `python main.py download` | 1篇 | ✅ 完成 | | 资料下载 | `python main.py download` | 1篇 | ✅ 完成 |
**总计: 102 篇文章** **总计: 110 篇文章**
> 注:服务与支持和服务与支持-详细页面合并输出到同一个目录 `output/服务与支持/`
## 使用方法 ## 使用方法

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@@ -5,3 +5,19 @@ markdownify>=0.11.0
python-docx>=0.8.11 python-docx>=0.8.11
lxml>=4.9.0 lxml>=4.9.0
# doc2md.py 依赖
Pillow>=9.0.0
matplotlib>=3.5.0 # 可选:用于渲染 LaTeX 公式
# wand>=0.6.0 # 可选:用于 WMF/EMF 转换(需要系统安装 ImageMagick
# html2image>=2.0.0 # 可选:用于表格渲染为图片
# test_llm.py 依赖 - RAG 方案
openai>=1.0.0
langchain>=0.1.0
langchain-openai>=0.1.0
langchain-community>=0.0.20
faiss-cpu>=1.7.4
tiktoken>=0.5.0
sentence-transformers>=2.2.0
torch>=2.0.0

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@@ -6,6 +6,7 @@
import os import os
import time import time
import copy import copy
import re
import requests import requests
from bs4 import BeautifulSoup from bs4 import BeautifulSoup
import markdownify import markdownify
@@ -37,8 +38,12 @@ class BaseCrawler(ABC):
self.session = requests.Session() self.session = requests.Session()
self.session.headers.update(HEADERS) self.session.headers.update(HEADERS)
# 输出目录 # 输出目录(支持自定义)
self.output_dir = os.path.join(OUTPUT_DIR, safe_filename(self.name)) if "output_dir" in task_config:
output_dir_name = task_config["output_dir"]
else:
output_dir_name = self.name
self.output_dir = os.path.join(OUTPUT_DIR, safe_filename(output_dir_name))
self.images_dir = os.path.join(self.output_dir, "images") self.images_dir = os.path.join(self.output_dir, "images")
ensure_dir(self.output_dir) ensure_dir(self.output_dir)
ensure_dir(self.images_dir) ensure_dir(self.images_dir)
@@ -123,14 +128,41 @@ class BaseCrawler(ABC):
selector = self.config.get("title_selector", "h1") selector = self.config.get("title_selector", "h1")
index = self.config.get("title_index", 0) index = self.config.get("title_index", 0)
# 优先从配置的选择器提取
tags = soup.find_all(selector) tags = soup.find_all(selector)
if tags and len(tags) > index: if tags and len(tags) > index:
return tags[index].get_text(strip=True) title = tags[index].get_text(strip=True)
if title:
return title
elif tags: elif tags:
return tags[0].get_text(strip=True) title = tags[0].get_text(strip=True)
else: if title:
# 使用URL最后一部分作为标题 return title
return url.split('/')[-1].replace('.html', '')
# 尝试从页面 title 标签提取
title_tag = soup.find('title')
if title_tag:
title = title_tag.get_text(strip=True)
# 移除网站名称后缀(如 " - 零差云控"
if ' - ' in title:
title = title.split(' - ')[0].strip()
if title and title.lower() not in ['about-us', 'contact-us', 'join-us']:
return title
# 尝试从 h1 标签提取(即使不在配置的选择器中)
h1_tags = soup.find_all('h1')
for h1 in h1_tags:
title = h1.get_text(strip=True)
# 跳过网站名称
if title and '零差云控' not in title and '零误差' not in title:
return title
# 最后使用URL最后一部分作为标题但进行美化
url_part = url.split('/')[-1].replace('.html', '')
# 将连字符替换为空格,并首字母大写
if '-' in url_part:
url_part = ' '.join(word.capitalize() for word in url_part.split('-'))
return url_part
def extract_content(self, soup: BeautifulSoup) -> BeautifulSoup | None: def extract_content(self, soup: BeautifulSoup) -> BeautifulSoup | None:
""" """
@@ -155,6 +187,7 @@ class BaseCrawler(ABC):
# class 选择器 # class 选择器
tag, class_name = sel.split('.', 1) tag, class_name = sel.split('.', 1)
tag = tag if tag else 'div' tag = tag if tag else 'div'
# 使用 find 只匹配第一个元素,避免重复
content = soup.find(tag, class_=class_name) content = soup.find(tag, class_=class_name)
else: else:
content = soup.find(sel) content = soup.find(sel)
@@ -170,9 +203,47 @@ class BaseCrawler(ABC):
if len(all_contents) == 1: if len(all_contents) == 1:
return all_contents[0] return all_contents[0]
# 去重:移除嵌套或重复的内容块
unique_contents = []
seen_texts = set() # 用于记录已见过的文本内容
for content in all_contents:
is_duplicate = False
content_text = content.get_text(strip=True)
# 跳过空内容
if not content_text:
continue
# 检查是否被其他内容块包含(是其他块的子元素)
for other in all_contents:
if content is other:
continue
# 检查当前内容是否是另一个内容块的子元素
parent = content.find_parent()
while parent:
if parent is other:
is_duplicate = True
break
parent = parent.find_parent()
if is_duplicate:
break
# 如果内容文本完全相同,只保留第一个
if not is_duplicate and content_text in seen_texts:
is_duplicate = True
if not is_duplicate:
unique_contents.append(content)
seen_texts.add(content_text)
# 如果去重后只剩一个,直接返回
if len(unique_contents) == 1:
return unique_contents[0]
# 合并多个内容区域到一个容器 # 合并多个内容区域到一个容器
combined = soup.new_tag('div') combined = soup.new_tag('div')
for content in all_contents: for content in unique_contents:
# 深拷贝内容以避免从原DOM中移除 # 深拷贝内容以避免从原DOM中移除
combined.append(copy.deepcopy(content)) combined.append(copy.deepcopy(content))
@@ -192,6 +263,35 @@ class BaseCrawler(ABC):
for tag in content(['script', 'style']): for tag in content(['script', 'style']):
tag.decompose() tag.decompose()
# 移除导航链接、空链接、锚点链接
for a in content.find_all('a', href=True):
href = a.get('href', '')
# 移除空链接、锚点链接、JavaScript 链接
if not href or href.startswith('#') or href.startswith('javascript:'):
# 保留链接文本,移除链接标签
a.unwrap()
# 移除导航菜单中的链接(通常包含特定 class 或 id
elif a.find_parent(['nav', 'menu', 'navigation']):
a.decompose()
# 移除空的 div、span 等标签(只包含空白字符)
for tag in content.find_all(['div', 'span', 'p']):
text = tag.get_text(strip=True)
if not text and not tag.find_all(['img', 'table']):
# 如果没有文本内容且没有图片/表格,移除
tag.decompose()
# 移除注释
from bs4 import Comment
for comment in content.find_all(string=lambda text: isinstance(text, Comment)):
comment.extract()
# 清理多余的空白字符
for tag in content.find_all(['p', 'div', 'span']):
if tag.string:
# 清理段落内的多余空白
tag.string = ' '.join(tag.string.split())
return content return content
def process_images(self, content: BeautifulSoup, page_url: str) -> list[tuple[str, str]]: def process_images(self, content: BeautifulSoup, page_url: str) -> list[tuple[str, str]]:
@@ -249,7 +349,8 @@ class BaseCrawler(ABC):
content: 内容区域 content: 内容区域
output_dir: 输出目录(用于解析图片路径) output_dir: 输出目录(用于解析图片路径)
""" """
for element in content.find_all(['p', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'img', 'li', 'table']): # 按文档顺序处理元素,保持列表的连续性
for element in content.find_all(['p', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'img', 'li', 'ul', 'ol', 'table']):
if element.name == 'img': if element.name == 'img':
src = element.get('src', '') src = element.get('src', '')
# 尝试获取本地图片路径 # 尝试获取本地图片路径
@@ -260,30 +361,59 @@ class BaseCrawler(ABC):
if os.path.exists(local_path): if os.path.exists(local_path):
try: try:
# 图片前添加空行
doc.add_paragraph()
doc.add_picture(local_path, width=Inches(5)) doc.add_picture(local_path, width=Inches(5))
doc.paragraphs[-1].alignment = WD_ALIGN_PARAGRAPH.CENTER doc.paragraphs[-1].alignment = WD_ALIGN_PARAGRAPH.CENTER
# 图片后添加空行
doc.add_paragraph()
except Exception as e: except Exception as e:
print(f" Word插入图片失败: {local_path} - {e}") print(f" Word插入图片失败: {local_path} - {e}")
elif element.name.startswith('h'): elif element.name.startswith('h'):
text = element.get_text(strip=True) text = element.get_text(strip=True)
if text: if text:
# HTML h1-h6 直接映射到 Word Heading 1-6
# 限制在 1-9 范围内Word 支持的最大标题级别)
level = int(element.name[1]) level = int(element.name[1])
doc.add_heading(text, level=min(level + 1, 9)) doc.add_heading(text, level=min(level, 9))
elif element.name in ['ul', 'ol']:
# 列表容器,跳过(列表项会单独处理)
continue
elif element.name == 'li': elif element.name == 'li':
text = element.get_text(strip=True) text = element.get_text(strip=True)
if text: if text:
doc.add_paragraph(text, style='List Bullet') # 检查父元素是 ul 还是 ol
parent = element.find_parent(['ul', 'ol'])
is_ordered = parent and parent.name == 'ol'
# 使用列表样式
if is_ordered:
doc.add_paragraph(text, style='List Number')
else:
doc.add_paragraph(text, style='List Bullet')
elif element.name == 'table': elif element.name == 'table':
# 简单处理表格,提取文本 # 处理表格,创建 Word 表格结构(便于 doc2md.py 解析)
for row in element.find_all('tr'): self._add_table_to_docx(doc, element)
cells = row.find_all(['td', 'th'])
row_text = ' | '.join([cell.get_text(strip=True) for cell in cells]) elif element.name == 'p':
if row_text.strip():
doc.add_paragraph(row_text)
else:
text = element.get_text(strip=True) text = element.get_text(strip=True)
if text: if text:
doc.add_paragraph(text) # 跳过空段落和只包含空白字符的段落
if text.strip():
# 检查是否是列表项(某些网站用 p 标签包裹列表项)
parent = element.find_parent(['ul', 'ol'])
if parent:
is_ordered = parent.name == 'ol'
if is_ordered:
doc.add_paragraph(text, style='List Number')
else:
doc.add_paragraph(text, style='List Bullet')
else:
doc.add_paragraph(text)
def crawl_page(self, url: str) -> dict | None: def crawl_page(self, url: str) -> dict | None:
""" """
@@ -357,6 +487,7 @@ class BaseCrawler(ABC):
def save_combined_documents(self, all_pages: list[dict]): def save_combined_documents(self, all_pages: list[dict]):
""" """
将所有页面汇总保存为一个 md 和 docx 文件 将所有页面汇总保存为一个 md 和 docx 文件
如果文件已存在会追加内容并去重基于URL
Args: Args:
all_pages: 所有页面数据列表 all_pages: 所有页面数据列表
@@ -364,47 +495,94 @@ class BaseCrawler(ABC):
if not all_pages: if not all_pages:
return return
safe_name = safe_filename(self.name) # 确定汇总文件名(使用输出目录名,而不是任务名)
output_dir_name = os.path.basename(self.output_dir)
# === 生成汇总 Markdown === safe_name = safe_filename(output_dir_name)
combined_md = f"# {self.name}全集\n\n"
combined_md += f"**生成时间**: {time.strftime('%Y-%m-%d %H:%M:%S')}\n\n"
combined_md += f"本文档汇总了零差云控官网的所有{self.name}内容,共 {len(all_pages)} 篇。\n\n"
combined_md += "---\n\n"
# 添加每篇内容
for page in all_pages:
combined_md += f"## {page['title']}\n\n"
combined_md += f"**原文链接**: {page['url']}\n\n"
combined_md += page["markdown"]
combined_md += "\n\n---\n\n"
md_path = os.path.join(self.output_dir, f"{safe_name}_汇总.md") md_path = os.path.join(self.output_dir, f"{safe_name}_汇总.md")
docx_path = os.path.join(self.output_dir, f"{safe_name}_汇总.docx")
# === 处理 Markdown ===
existing_urls = set()
existing_content = ""
# 如果文件已存在读取现有内容并提取已存在的URL
if os.path.exists(md_path):
with open(md_path, "r", encoding="utf-8") as f:
existing_content = f.read()
# 提取已存在的URL用于去重
url_pattern = r'\*\*原文链接\*\*: (https?://[^\s\n]+)'
existing_urls = set(re.findall(url_pattern, existing_content))
# 过滤掉已存在的页面基于URL去重
new_pages = [page for page in all_pages if page['url'] not in existing_urls]
if not new_pages and existing_content:
print(f" 所有页面已存在,无需更新: {md_path}")
return
# 生成新内容
new_md_content = ""
for page in new_pages:
new_md_content += f"## {page['title']}\n\n"
new_md_content += f"**原文链接**: {page['url']}\n\n"
new_md_content += page["markdown"]
new_md_content += "\n\n---\n\n"
# 追加或创建文件
if existing_content:
# 追加模式:在现有内容后追加新内容
combined_md = existing_content.rstrip() + "\n\n" + new_md_content
print(f" 追加 {len(new_pages)} 篇新内容到现有文档")
else:
# 新建模式:创建新文档
combined_md = f"# {output_dir_name}全集\n\n" + new_md_content
with open(md_path, "w", encoding="utf-8") as f: with open(md_path, "w", encoding="utf-8") as f:
f.write(combined_md) f.write(combined_md)
print(f" 汇总 Markdown: {md_path}") print(f" 汇总 Markdown: {md_path}")
# === 生成汇总 Word 文档 === # === 处理 Word 文档 ===
doc = Document() if os.path.exists(docx_path):
doc.add_heading(f'{self.name}全集', 0) # 如果Word文档已存在重新生成因为python-docx不支持追加
doc = Document(docx_path)
intro = doc.add_paragraph() # 提取已存在的URL
intro.add_run(f"生成时间: {time.strftime('%Y-%m-%d %H:%M:%S')}").italic = True existing_doc_urls = set()
doc.add_paragraph(f"本文档汇总了零差云控官网的所有{self.name}内容,共 {len(all_pages)} 篇。") for para in doc.paragraphs:
doc.add_page_break() if para.runs and "原文链接:" in para.text:
url_match = re.search(r'原文链接: (https?://[^\s\n]+)', para.text)
# 添加每篇内容 if url_match:
for page in all_pages: existing_doc_urls.add(url_match.group(1))
doc.add_heading(page["title"], level=1)
p = doc.add_paragraph()
p.add_run(f"原文链接: {page['url']}").italic = True
self.add_content_to_docx(doc, page["content"], self.output_dir) # 过滤新页面
doc.add_page_break() new_pages_for_doc = [page for page in all_pages if page['url'] not in existing_doc_urls]
docx_path = os.path.join(self.output_dir, f"{safe_name}_汇总.docx") if new_pages_for_doc:
doc.save(docx_path) # 添加新内容
print(f" 汇总 Word: {docx_path}") for page in new_pages_for_doc:
doc.add_heading(page["title"], level=1)
p = doc.add_paragraph()
p.add_run(f"原文链接: {page['url']}").italic = True
self.add_content_to_docx(doc, page["content"], self.output_dir)
doc.add_page_break()
doc.save(docx_path)
print(f" 追加 {len(new_pages_for_doc)} 篇新内容到 Word 文档")
else:
print(f" Word 文档无需更新: {docx_path}")
else:
# 新建Word文档
doc = Document()
doc.add_heading(f'{output_dir_name}全集', level=1)
for page in all_pages:
doc.add_heading(page["title"], level=1)
p = doc.add_paragraph()
p.add_run(f"原文链接: {page['url']}").italic = True
self.add_content_to_docx(doc, page["content"], self.output_dir)
doc.add_page_break()
doc.save(docx_path)
print(f" 汇总 Word: {docx_path}")
def run(self): def run(self):
""" """
@@ -451,6 +629,67 @@ class BaseCrawler(ABC):
print(f"输出目录: {self.output_dir}") print(f"输出目录: {self.output_dir}")
def _add_table_to_docx(self, doc: Document, table_element: BeautifulSoup):
"""
将 HTML 表格添加到 Word 文档
Args:
doc: Document 对象
table_element: 表格元素
"""
rows = table_element.find_all('tr')
if not rows:
return
# 获取最大列数(考虑 colspan
max_cols = 0
for row in rows:
cells = row.find_all(['td', 'th'])
col_count = 0
for cell in cells:
colspan = int(cell.get('colspan', 1))
col_count += colspan
max_cols = max(max_cols, col_count)
if max_cols == 0:
return
# 创建 Word 表格
try:
word_table = doc.add_table(rows=len(rows), cols=max_cols)
word_table.style = 'Table Grid'
for i, row in enumerate(rows):
cells = row.find_all(['td', 'th'])
col_idx = 0
for cell in cells:
if col_idx >= max_cols:
break
text = cell.get_text(strip=True)
colspan = int(cell.get('colspan', 1))
rowspan = int(cell.get('rowspan', 1))
# 设置单元格文本
word_table.rows[i].cells[col_idx].text = text
# 处理合并单元格python-docx 的合并需要特殊处理)
# 注意python-docx 的合并单元格功能有限,这里先简单处理
if colspan > 1 or rowspan > 1:
# 对于合并单元格python-docx 需要手动合并
# 这里先标记,后续可以改进
pass
col_idx += colspan
except Exception as e:
# 如果表格创建失败,降级为文本
print(f" 表格创建失败,降级为文本: {e}")
for row in rows:
cells = row.find_all(['td', 'th'])
row_text = ' | '.join([cell.get_text(strip=True) for cell in cells])
if row_text.strip():
doc.add_paragraph(row_text)
class StandardCrawler(BaseCrawler): class StandardCrawler(BaseCrawler):
""" """
标准爬虫类 标准爬虫类

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@@ -102,8 +102,6 @@ CRAWL_TASKS = {
"static_pages": [ "static_pages": [
"/about/about-us.html", "/about/about-us.html",
"/about/contact-us.html", "/about/contact-us.html",
"/about/join-us.html",
"/about/152.html", # 诚招代理
], ],
"content_selector": "div.about_us1,div.page-title,div.about_company,div.contact_us,div.web_contact", # 多区域布局 "content_selector": "div.about_us1,div.page-title,div.about_company,div.contact_us,div.web_contact", # 多区域布局
"title_selector": "h1,h2", "title_selector": "h1,h2",
@@ -129,5 +127,17 @@ CRAWL_TASKS = {
"title_selector": "h1", "title_selector": "h1",
"title_index": 0, "title_index": 0,
}, },
# 服务与支持详细页面(从索引页提取)
"service_detail": {
"name": "服务与支持-详细页面",
"output_dir": "服务与支持", # 输出到同一个目录
"index_url": "/Service/index.html",
"link_pattern": "/Service/",
"link_suffix": ".html",
"exclude_patterns": ["index.html"],
"content_selector": "div.news_text_p,div.news_text,div.content,div.content-section", # 多种布局支持
"title_selector": "h1",
"title_index": 1,
},
} }

View File

@@ -77,16 +77,22 @@ class ProductCrawler(BaseCrawler):
if os.path.exists(local_path): if os.path.exists(local_path):
try: try:
# 图片前添加空行
doc.add_paragraph()
doc.add_picture(local_path, width=Inches(4.5)) doc.add_picture(local_path, width=Inches(4.5))
doc.paragraphs[-1].alignment = WD_ALIGN_PARAGRAPH.CENTER doc.paragraphs[-1].alignment = WD_ALIGN_PARAGRAPH.CENTER
# 图片后添加空行
doc.add_paragraph()
except Exception as e: except Exception as e:
print(f" Word插入图片失败: {local_path} - {e}") print(f" Word插入图片失败: {local_path} - {e}")
elif element.name.startswith('h'): elif element.name.startswith('h'):
text = element.get_text(strip=True) text = element.get_text(strip=True)
if text and '零差云控' not in text: if text and '零差云控' not in text:
# HTML h1-h6 直接映射到 Word Heading 1-6
# 限制在 1-9 范围内Word 支持的最大标题级别)
level = int(element.name[1]) level = int(element.name[1])
doc.add_heading(text, level=min(level + 1, 9)) doc.add_heading(text, level=min(level, 9))
elif element.name == 'table': elif element.name == 'table':
# 处理表格 # 处理表格