修复数据库初始化问题、删除过时的数据库格式方法、修复空停用词错误。

MindSpider/DeepSentimentCrawling/MediaCrawler/tools/words.py

@@ -35,6 +35,8 @@ class AsyncWordCloudGenerator:
             jieba.add_word(word)
 
     def load_stop_words(self):
+        if not os.path.exists(self.stop_words_file):
+            return set()
         with open(self.stop_words_file, 'r', encoding='utf-8') as f:
             return set(f.read().strip().split('\n'))
 

MindSpider/schema/db_manager.py

@@ -24,7 +24,7 @@ except ImportError:
     logger.error("错误: 无法导入config.py配置文件")
     sys.exit(1)
 
-from MindSpider.config import settings
+from config import settings
 
 class DatabaseManager:
     def __init__(self):

MindSpider/schema/init_database.py

@@ -1,169 +1,119 @@
-#!/usr/bin/env python3
-# -*- coding: utf-8 -*-
 """
-MindSpider AI爬虫项目 - 数据库初始化脚本
-用于创建项目所需的所有数据库表
+MindSpider 数据库初始化（SQLAlchemy 2.x 异步引擎）
+
+此脚本创建 MindSpider 扩展表（与 MediaCrawler 原始表分离）。
+支持 MySQL 与 PostgreSQL，需已有可连接的数据库实例。
+
+数据模型定义位置：
+- MindSpider/schema/models_sa.py
 """
 
+from __future__ import annotations
+
+import asyncio
 import os
+from typing import Optional
+
+from loguru import logger
+
+from sqlalchemy.ext.asyncio import create_async_engine
+from sqlalchemy import text
+
+from models_sa import Base
+
+# 导入 models_bigdata 以确保所有表类被注册到 Base.metadata
+# models_bigdata 现在也使用 models_sa 的 Base，所以所有表都在同一个 metadata 中
+import models_bigdata  # noqa: F401  # 导入以注册所有表类
 import sys
-import pymysql
 from pathlib import Path
-from MindSpider.config import settings
 
 # 添加项目根目录到路径
 project_root = Path(__file__).parent.parent
 sys.path.append(str(project_root))
 
-# 导入配置
-try:
-    import config
-except ImportError:
-    print("错误: 无法导入config.py配置文件")
-    print("请确保config.py文件存在于项目根目录")
-    sys.exit(1)
+from config import settings
 
-def create_database_connection():
-    """创建数据库连接"""
-    try:
-        connection = pymysql.connect(
-            host=settings.db_host,
-            port=settings.db_port,
-            user=settings.db_user,
-            password=settings.db_password,
-            charset=settings.db_charset,
-            autocommit=True
-        )
-        print(f"成功连接到MySQL服务器: {settings.db_host}:{settings.db_port}")
-        return connection
-    except Exception as e:
-        print(f"连接数据库失败: {e}")
-        return None
+def _env(key: str, default: Optional[str] = None) -> Optional[str]:
+    v = os.getenv(key)
+    return v if v not in (None, "") else default
 
-def create_database(connection):
-    """创建数据库"""
-    try:
-        cursor = connection.cursor()
-        cursor.execute(f"CREATE DATABASE IF NOT EXISTS `{settings.db_name}` CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci")
-        cursor.execute(f"USE `{settings.db_name}`")
-        print(f"数据库 '{settings.db_name}' 创建/选择成功")
-        return True
-    except Exception as e:
-        print(f"创建数据库失败: {e}")
-        return False
 
-def execute_sql_file(connection, sql_file_path, description=""):
-    """执行SQL文件"""
-    if not os.path.exists(sql_file_path):
-        print(f"警告: SQL文件不存在: {sql_file_path}")
-        return False
+def _build_database_url() -> str:
+    # 优先 DATABASE_URL
+    database_url = settings.DATABASE_URL if hasattr(settings, "DATABASE_URL") else None
+    if database_url:
+        return database_url
 
-    try:
-        cursor = connection.cursor()
-        with open(sql_file_path, 'r', encoding='utf-8') as f:
-            sql_content = f.read()
+    dialect = (settings.DB_DIALECT or "mysql").lower()
+    host = settings.DB_HOST or "localhost"
+    port = str(settings.DB_PORT or ("3306" if dialect == "mysql" else "5432"))
+    user = settings.DB_USER or "root"
+    password = settings.DB_PASSWORD or ""
+    db_name = settings.DB_NAME or "mindspider"
 
-        # 分割SQL语句（简单实现，按分号分割）
-        sql_statements = [stmt.strip() for stmt in sql_content.split(';') if stmt.strip()]
+    if dialect in ("postgresql", "postgres"):
+        return f"postgresql+asyncpg://{user}:{password}@{host}:{port}/{db_name}"
 
-        success_count = 0
-        error_count = 0
+    return f"mysql+aiomysql://{user}:{password}@{host}:{port}/{db_name}"
 
-        for stmt in sql_statements:
-            if not stmt or stmt.startswith('--'):
-                continue
-            try:
-                cursor.execute(stmt)
-                success_count += 1
-            except Exception as e:
-                error_count += 1
-                print(f"执行SQL语句失败: {str(e)[:100]}...")
 
-        print(f"{description} - 成功执行: {success_count} 条语句, 失败: {error_count} 条语句")
-        return error_count == 0
+async def _create_views_if_needed(engine_dialect: str):
+    # 视图为可选；仅当业务需要时创建。两端使用通用 SQL 聚合避免方言函数。
+    # 如不需要视图，可跳过。
+    engine_dialect = engine_dialect.lower()
+    v_topic_crawling_stats = (
+        "CREATE OR REPLACE VIEW v_topic_crawling_stats AS\n"
+        "SELECT dt.topic_id, dt.topic_name, dt.extract_date, dt.processing_status,\n"
+        "       COUNT(DISTINCT ct.task_id) AS total_tasks,\n"
+        "       SUM(CASE WHEN ct.task_status = 'completed' THEN 1 ELSE 0 END) AS completed_tasks,\n"
+        "       SUM(CASE WHEN ct.task_status = 'failed' THEN 1 ELSE 0 END) AS failed_tasks,\n"
+        "       SUM(COALESCE(ct.total_crawled,0)) AS total_content_crawled,\n"
+        "       SUM(COALESCE(ct.success_count,0)) AS total_success_count,\n"
+        "       SUM(COALESCE(ct.error_count,0)) AS total_error_count\n"
+        "FROM daily_topics dt\n"
+        "LEFT JOIN crawling_tasks ct ON dt.topic_id = ct.topic_id\n"
+        "GROUP BY dt.topic_id, dt.topic_name, dt.extract_date, dt.processing_status"
+    )
 
-    except Exception as e:
-        print(f"执行SQL文件失败 {sql_file_path}: {e}")
-        return False
+    v_daily_summary = (
+        "CREATE OR REPLACE VIEW v_daily_summary AS\n"
+        "SELECT dn.crawl_date AS crawl_date,\n"
+        "       COUNT(DISTINCT dn.news_id) AS total_news,\n"
+        "       COUNT(DISTINCT dn.source_platform) AS platforms_covered,\n"
+        "       (SELECT COUNT(*) FROM daily_topics WHERE extract_date = dn.crawl_date) AS topics_extracted,\n"
+        "       (SELECT COUNT(*) FROM crawling_tasks WHERE scheduled_date = dn.crawl_date) AS tasks_created\n"
+        "FROM daily_news dn\n"
+        "GROUP BY dn.crawl_date\n"
+        "ORDER BY dn.crawl_date DESC"
+    )
 
-def main():
-    """主函数"""
-    print("=" * 60)
-    print("MindSpider AI爬虫项目 - 数据库初始化")
-    print("=" * 60)
+    # PostgreSQL 的 CREATE OR REPLACE VIEW 也可用；两端均执行
+    from sqlalchemy.ext.asyncio import AsyncEngine
+    engine: AsyncEngine = create_async_engine(_build_database_url())
+    async with engine.begin() as conn:
+        await conn.execute(text(v_topic_crawling_stats))
+        await conn.execute(text(v_daily_summary))
+    await engine.dispose()
 
-    # 检查配置
-    print("检查数据库配置...")
-    print(f"数据库主机: {settings.db_host}")
-    print(f"数据库端口: {settings.db_port}")
-    print(f"数据库名称: {settings.db_name}")
-    print(f"数据库用户: {settings.db_user}")
-    print(f"字符集: {settings.db_charset}")
-    print()
 
-    # 创建数据库连接
-    print("正在连接数据库...")
-    connection = create_database_connection()
-    if not connection:
-        print("数据库初始化失败！")
-        return False
+async def main() -> None:
+    database_url = _build_database_url()
+    engine = create_async_engine(database_url, pool_pre_ping=True, pool_recycle=1800)
 
-    try:
-        # 创建数据库
-        print("正在创建/选择数据库...")
-        if not create_database(connection):
-            return False
+    # 由于 models_bigdata 和 models_sa 现在共享同一个 Base，所有表都在同一个 metadata 中
+    # 只需创建一次，SQLAlchemy 会自动处理表之间的依赖关系
+    async with engine.begin() as conn:
+        await conn.run_sync(Base.metadata.create_all)
 
-        # 获取SQL文件路径
-        schema_dir = Path(__file__).parent
-        mediacrawler_sql = schema_dir.parent / "DeepSentimentCrawling" / "MediaCrawler" / "schema" / "tables.sql"
-        mindspider_sql = schema_dir / "mindspider_tables.sql"
+    # 保持原有视图创建和释放逻辑
+    dialect_name = engine.url.get_backend_name()
+    await _create_views_if_needed(dialect_name)
 
-        print()
-        print("开始执行SQL脚本...")
+    await engine.dispose()
+    logger.info("[init_database_sa] 数据表与视图创建完成")
 
-        # 1. 执行MediaCrawler的原始表结构
-        if mediacrawler_sql.exists():
-            print("1. 创建MediaCrawler基础表...")
-            execute_sql_file(connection, str(mediacrawler_sql), "MediaCrawler基础表")
-        else:
-            print("警告: MediaCrawler SQL文件不存在，跳过基础表创建")
-
-        # 2. 执行MindSpider扩展表结构
-        print("2. 创建MindSpider扩展表...")
-        if mindspider_sql.exists():
-            execute_sql_file(connection, str(mindspider_sql), "MindSpider扩展表")
-        else:
-            print("错误: MindSpider SQL文件不存在")
-            return False
-
-        print()
-        print("=" * 60)
-        print("数据库初始化完成！")
-        print("=" * 60)
-
-        # 显示创建的表
-        cursor = connection.cursor()
-        cursor.execute("SHOW TABLES")
-        tables = cursor.fetchall()
-
-        print(f"数据库 '{settings.db_name}' 中共创建了 {len(tables)} 个表:")
-        for table in tables:
-            print(f"  - {table[0]}")
-        
-        print()
-        print("数据库初始化成功完成！您现在可以开始使用MindSpider了。")
-        return True
-        
-    except Exception as e:
-        print(f"数据库初始化过程中发生错误: {e}")
-        return False
-    
-    finally:
-        if connection:
-            connection.close()
-            print("数据库连接已关闭")
 
 if __name__ == "__main__":
-    success = main()
-    sys.exit(0 if success else 1)
+    asyncio.run(main())
+
+

MindSpider/schema/init_database_sa.py

@@ -1,119 +0,0 @@
-"""
-MindSpider 数据库初始化（SQLAlchemy 2.x 异步引擎）
-
-此脚本创建 MindSpider 扩展表（与 MediaCrawler 原始表分离）。
-支持 MySQL 与 PostgreSQL，需已有可连接的数据库实例。
-
-数据模型定义位置：
-- MindSpider/schema/models_sa.py
-"""
-
-from __future__ import annotations
-
-import asyncio
-import os
-from typing import Optional
-
-from loguru import logger
-
-from sqlalchemy.ext.asyncio import create_async_engine
-from sqlalchemy import text
-
-from models_sa import Base
-
-# 导入 models_bigdata 以确保所有表类被注册到 Base.metadata
-# models_bigdata 现在也使用 models_sa 的 Base，所以所有表都在同一个 metadata 中
-import models_bigdata  # noqa: F401  # 导入以注册所有表类
-import sys
-from pathlib import Path
-
-# 添加项目根目录到路径
-project_root = Path(__file__).parent.parent
-sys.path.append(str(project_root))
-
-from config import settings
-
-def _env(key: str, default: Optional[str] = None) -> Optional[str]:
-    v = os.getenv(key)
-    return v if v not in (None, "") else default
-
-
-def _build_database_url() -> str:
-    # 优先 DATABASE_URL
-    database_url = settings.DATABASE_URL if hasattr(settings, "DATABASE_URL") else None
-    if database_url:
-        return database_url
-
-    dialect = (settings.DB_DIALECT or "mysql").lower()
-    host = settings.DB_HOST or "localhost"
-    port = str(settings.DB_PORT or ("3306" if dialect == "mysql" else "5432"))
-    user = settings.DB_USER or "root"
-    password = settings.DB_PASSWORD or ""
-    db_name = settings.DB_NAME or "mindspider"
-
-    if dialect in ("postgresql", "postgres"):
-        return f"postgresql+asyncpg://{user}:{password}@{host}:{port}/{db_name}"
-
-    return f"mysql+aiomysql://{user}:{password}@{host}:{port}/{db_name}"
-
-
-async def _create_views_if_needed(engine_dialect: str):
-    # 视图为可选；仅当业务需要时创建。两端使用通用 SQL 聚合避免方言函数。
-    # 如不需要视图，可跳过。
-    engine_dialect = engine_dialect.lower()
-    v_topic_crawling_stats = (
-        "CREATE OR REPLACE VIEW v_topic_crawling_stats AS\n"
-        "SELECT dt.topic_id, dt.topic_name, dt.extract_date, dt.processing_status,\n"
-        "       COUNT(DISTINCT ct.task_id) AS total_tasks,\n"
-        "       SUM(CASE WHEN ct.task_status = 'completed' THEN 1 ELSE 0 END) AS completed_tasks,\n"
-        "       SUM(CASE WHEN ct.task_status = 'failed' THEN 1 ELSE 0 END) AS failed_tasks,\n"
-        "       SUM(COALESCE(ct.total_crawled,0)) AS total_content_crawled,\n"
-        "       SUM(COALESCE(ct.success_count,0)) AS total_success_count,\n"
-        "       SUM(COALESCE(ct.error_count,0)) AS total_error_count\n"
-        "FROM daily_topics dt\n"
-        "LEFT JOIN crawling_tasks ct ON dt.topic_id = ct.topic_id\n"
-        "GROUP BY dt.topic_id, dt.topic_name, dt.extract_date, dt.processing_status"
-    )
-
-    v_daily_summary = (
-        "CREATE OR REPLACE VIEW v_daily_summary AS\n"
-        "SELECT dn.crawl_date AS crawl_date,\n"
-        "       COUNT(DISTINCT dn.news_id) AS total_news,\n"
-        "       COUNT(DISTINCT dn.source_platform) AS platforms_covered,\n"
-        "       (SELECT COUNT(*) FROM daily_topics WHERE extract_date = dn.crawl_date) AS topics_extracted,\n"
-        "       (SELECT COUNT(*) FROM crawling_tasks WHERE scheduled_date = dn.crawl_date) AS tasks_created\n"
-        "FROM daily_news dn\n"
-        "GROUP BY dn.crawl_date\n"
-        "ORDER BY dn.crawl_date DESC"
-    )
-
-    # PostgreSQL 的 CREATE OR REPLACE VIEW 也可用；两端均执行
-    from sqlalchemy.ext.asyncio import AsyncEngine
-    engine: AsyncEngine = create_async_engine(_build_database_url())
-    async with engine.begin() as conn:
-        await conn.execute(text(v_topic_crawling_stats))
-        await conn.execute(text(v_daily_summary))
-    await engine.dispose()
-
-
-async def main() -> None:
-    database_url = _build_database_url()
-    engine = create_async_engine(database_url, pool_pre_ping=True, pool_recycle=1800)
-
-    # 由于 models_bigdata 和 models_sa 现在共享同一个 Base，所有表都在同一个 metadata 中
-    # 只需创建一次，SQLAlchemy 会自动处理表之间的依赖关系
-    async with engine.begin() as conn:
-        await conn.run_sync(Base.metadata.create_all)
-
-    # 保持原有视图创建和释放逻辑
-    dialect_name = engine.url.get_backend_name()
-    await _create_views_if_needed(dialect_name)
-
-    await engine.dispose()
-    logger.info("[init_database_sa] 数据表与视图创建完成")
-
-
-if __name__ == "__main__":
-    asyncio.run(main())
-
-