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backend/app/processors/parsers/docx_parser.py

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+"""DOCX 解析器（python-docx fallback）。"""
+
+from app.core.logging import get_logger
+
+logger = get_logger(__name__)
+
+
+def parse_docx_with_python_docx(file_content: bytes) -> str | None:
+    """用 python-docx 解析 DOCX，返回 Markdown 或 None（失败时）。"""
+    try:
+        import io
+
+        from docx import Document
+
+        doc = Document(io.BytesIO(file_content))
+        md_parts = []
+
+        for para in doc.paragraphs:
+            text = para.text.strip()
+            if not text:
+                continue
+
+            style = para.style.name.lower()
+            if style.startswith("heading 1"):
+                md_parts.append(f"# {text}")
+            elif style.startswith("heading 2"):
+                md_parts.append(f"## {text}")
+            elif style.startswith("heading 3"):
+                md_parts.append(f"### {text}")
+            elif style.startswith("heading"):
+                md_parts.append(f"#### {text}")
+            elif style.startswith("list"):
+                md_parts.append(f"- {text}")
+            else:
+                md_parts.append(text)
+
+        # 处理表格
+        for table in doc.tables:
+            rows = []
+            for row in table.rows:
+                cells = [cell.text.strip() for cell in row.cells]
+                rows.append("| " + " | ".join(cells) + " |")
+            if rows:
+                # 添加表头分隔行
+                if len(rows) > 1:
+                    sep = "| " + " | ".join(["---"] * len(table.columns)) + " |"
+                    rows.insert(1, sep)
+                md_parts.append("\n".join(rows))
+
+        markdown = "\n\n".join(md_parts)
+        return markdown if markdown.strip() else None
+    except Exception as e:
+        logger.warning("python-docx 解析失败: %s", e)
+        return None