修复Qt5

app/config/paths.py

@@ -19,15 +19,13 @@ DBN_CONFIG_DIR = CONFIG_DIR / "dbn"
 
 def get_logger(name: str = "algorithm"):
     """
-    获取日志记录器。主进程用 loguru，QGIS 子进程回退到标准 logging。
+    获取日志记录器的便捷函数
+
+    Args:
+        name: 日志名称
+
+    Returns:
+        logging.Logger 实例
     """
-    try:
-        from app.utils.logger import get_logger as _get_logger
-        return _get_logger(name, str(LOG_DIR))
-    except ImportError:
-        import logging
-        logging.basicConfig(
-            level=logging.INFO,
-            format="%(asctime)s [%(threadName)s] %(levelname)-5s %(name)s - %(message)s",
-        )
-        return logging.getLogger(name)
+    from app.utils.logger import LoggerManager
+    return LoggerManager.get_logger(name, str(LOG_DIR))

app/services/qgis/qgis_env.py

@@ -11,6 +11,7 @@ QGIS 环境检测与子进程配置模块。
   - get_runner_script():    获取 qgis_runner.py 的路径
 """
 import os
+import tempfile
 from pathlib import Path
 
 from app.config.paths import get_logger
@@ -73,32 +74,29 @@ def get_qgis_python_path(qgis_root: str = None) -> str | None:
 
 def build_qgis_command(qgis_root: str = None) -> list[str]:
     """
-    构建通过静态启动脚本运行 QGIS 子进程的命令列表。
-
-    Windows: 调用 app/script/run_qgis.bat（通过 QGIS_ROOT 环境变量定位）
-    Linux:   直接调用 QGIS Python 解释器
+    构建通过 .bat 包装器启动 QGIS 子进程的命令列表。
+    设置环境变量并启动 QGIS Python 3.12。
     """
     import platform
+    if platform.system() != "Windows":
+        python_path = get_qgis_python_path(qgis_root)
+        if not python_path:
+            raise RuntimeError("未找到 QGIS Python 解释器")
+        return [python_path, get_runner_script()]
+
     if qgis_root is None:
         qgis_root = _detect_qgis_root() or "D:/QGIS"
 
+    python_path = get_qgis_python_path(qgis_root)
+    if not python_path:
+        raise RuntimeError("未找到 QGIS Python 3.12 解释器")
+
     runner_script = get_runner_script()
     if not os.path.isfile(runner_script):
         raise RuntimeError(f"QGIS Runner 脚本不存在: {runner_script}")
 
-    if platform.system() == "Windows":
-        script_dir = Path(__file__).parent.parent.parent / "script"
-        bat_path = str(script_dir / "run_qgis.bat")
-        if not os.path.isfile(bat_path):
-            raise RuntimeError(f"QGIS 启动脚本不存在: {bat_path}")
-        # 设置环境变量让 .bat 能找到 QGIS
-        os.environ["QGIS_ROOT"] = qgis_root
-        return ["cmd.exe", "/c", bat_path, runner_script]
-    else:
-        python_path = get_qgis_python_path(qgis_root)
-        if not python_path:
-            raise RuntimeError("未找到 QGIS Python 解释器")
-        return [python_path, runner_script]
+    bat_path = _generate_bat_wrapper(qgis_root, python_path, runner_script)
+    return ["cmd.exe", "/c", bat_path]
 
 
 def is_qgis_available(qgis_root: str = None) -> bool:
@@ -111,6 +109,61 @@ def get_runner_script() -> str:
     return str(Path(__file__).parent / "qgis_runner.py")
 
 
+def _generate_bat_wrapper(qgis_root: str, python_path: str, runner_script: str) -> str:
+    """生成 .bat 包装脚本，设置 QGIS 环境变量并启动 runner"""
+    # 自动检测 QGIS 应用目录（qgis-ltr 或 qgis）
+    qgis_app_dir = os.path.join(qgis_root, "apps", "qgis-ltr")
+    if not os.path.isdir(qgis_app_dir):
+        qgis_app_dir = os.path.join(qgis_root, "apps", "qgis")
+    qgis_app_dir = qgis_app_dir.replace("/", "\\")
+
+    # 自动检测 PROJ 目录
+    proj_data = ""
+    for pd in [
+        os.path.join(qgis_app_dir, "share", "proj"),
+        os.path.join(qgis_root, "share", "proj"),
+        os.path.join(qgis_root, "apps", "gdal", "share", "proj"),
+    ]:
+        if os.path.isfile(os.path.join(pd, "proj.db")):
+            proj_data = pd.replace("/", "\\")
+            break
+
+    python_dir = os.path.join(qgis_root, "apps", "Python312").replace("/", "\\")
+    qt5_plugins = os.path.join(qgis_root, "apps", "Qt5", "plugins").replace("/", "\\")
+    qtplugins = os.path.join(qgis_app_dir, "qtplugins").replace("/", "\\")
+    gdal_data = os.path.join(qgis_root, "apps", "gdal", "share", "gdal").replace("/", "\\")
+    qgis_python_dir = os.path.join(qgis_app_dir, "python").replace("/", "\\")
+    qgis_bin = os.path.join(qgis_app_dir, "bin").replace("/", "\\")
+    qt5_bin = os.path.join(qgis_root, "apps", "Qt5", "bin").replace("/", "\\")
+    gdal_lib = os.path.join(qgis_root, "apps", "gdal", "lib").replace("/", "\\")
+
+    proj_line = f'set "PROJ_DATA={proj_data}"' if proj_data else "REM PROJ_DATA not found"
+
+    bat_content = f"""@echo off
+chcp 65001 >nul
+set "PYTHONHOME={python_dir}"
+set "PYTHONPATH={qgis_python_dir}"
+set "QGIS_PREFIX_PATH={qgis_app_dir}"
+set "QT_PLUGIN_PATH={qtplugins};{qt5_plugins}"
+set "GDAL_DATA={gdal_data}"
+{proj_line}
+set "PYTHONUTF8=1"
+set "GDAL_FILENAME_IS_UTF8=YES"
+set "VSI_CACHE=TRUE"
+set "VSI_CACHE_SIZE=1000000"
+set "PATH={qt5_bin};{qgis_bin};{gdal_lib};%PATH%"
+"{python_path}" "{runner_script}" %*
+"""
+
+    bat_dir = os.path.join(tempfile.gettempdir(), "qgis_runner")
+    os.makedirs(bat_dir, exist_ok=True)
+    bat_path = os.path.join(bat_dir, "run_qgis.bat")
+    with open(bat_path, "w", encoding="utf-8") as f:
+        f.write(bat_content)
+    logger.debug(f"生成 QGIS 包装脚本: {bat_path}")
+    return bat_path
+
+
 def _detect_qgis_root() -> str | None:
     """
     自动检测 QGIS 安装根目录。

app/services/qgis/qgis_runner.py

@@ -44,7 +44,21 @@ def _setup_python_path():
 
 def _setup_environment():
     """设置 QGIS 运行所需的环境变量"""
+    # 自动检测 QGIS 应用目录（与 run_qgis.bat 保持一致）
     qgis_app_dir = os.path.join(QGIS_ROOT, "apps", "qgis-ltr")
+    if not os.path.isdir(qgis_app_dir):
+        qgis_app_dir = os.path.join(QGIS_ROOT, "apps", "qgis")
+
+    # ★ 必须在任何 DLL 加载前设置 PROJ_DATA，防止 PostgreSQL 的旧 proj.db 干扰
+    for proj_dir in [
+        os.path.join(qgis_app_dir, "share", "proj"),
+        os.path.join(QGIS_ROOT, "share", "proj"),
+        os.path.join(QGIS_ROOT, "apps", "gdal", "share", "proj"),
+    ]:
+        if os.path.isdir(proj_dir):
+            os.environ["PROJ_DATA"] = proj_dir
+            break
+
     os.environ["QGIS_PREFIX_PATH"] = qgis_app_dir
     os.environ["PYTHONUTF8"] = "1"
     os.environ["GDAL_FILENAME_IS_UTF8"] = "YES"

app/utils/logger.py

@@ -1,35 +1,45 @@
 """
 日志工具类
-使用 loguru 提供增强的日志功能，支持按天分割、自动清理过期日志
+主进程使用 loguru，QGIS 子进程（无 loguru）回退到标准 logging。
 """
 import sys
 from pathlib import Path
+
+try:
     from loguru import logger
+    _HAS_LOGURU = True
+except ImportError:
+    _HAS_LOGURU = False
+    import logging
 
 
 class LoggerManager:
-    """日志管理器 - 基于 loguru"""
+    """日志管理器"""
 
     _configured = False
 
     @classmethod
     def get_logger(cls, name: str = "algorithm", log_dir: str = "logs"):
-        """
-        获取日志记录器（loguru 不需要传统意义上的 logger 实例）
-        
-        Args:
-            name: 日志名称（用于文件命名）
-            log_dir: 日志目录
-            
-        Returns:
-            loguru.logger 实例
-        """
+        if not _HAS_LOGURU:
+            return cls._get_stdlib_logger(name)
         if not cls._configured:
-            cls._configure_logger(name, log_dir)
+            cls._configure_loguru(name, log_dir)
         return logger
 
     @classmethod
-    def _configure_logger(cls, name: str, log_dir: str):
+    def _get_stdlib_logger(cls, name: str):
+        lg = logging.getLogger(name)
+        if not lg.handlers:
+            lg.setLevel(logging.INFO)
+            h = logging.StreamHandler(sys.stderr)
+            h.setFormatter(logging.Formatter(
+                "%(asctime)s [%(threadName)s] %(levelname)-5s %(name)s - %(message)s"
+            ))
+            lg.addHandler(h)
+        return lg
+
+    @classmethod
+    def _configure_loguru(cls, name: str, log_dir: str):
         """
         配置 loguru 日志处理器