回复到之前版本

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 +109,41 @@ 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"""
+    qgis_app_dir = os.path.join(qgis_root, "apps", "qgis-ltr").replace("/", "\\")
+    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("/", "\\")
+
+    bat_content = f"""@echo off
+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}"
+set "PYTHONUTF8=1"
+set "GDAL_FILENAME_IS_UTF8=YES"
+set "VSI_CACHE=TRUE"
+set "VSI_CACHE_SIZE=1000000"
+set "PATH={qgis_bin};{qt5_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。