Fix Windows scheduled startup failures

autostart_runner.bat

@@ -6,6 +6,9 @@ cd /d "%~dp0"
 set "LOG_DIR=%~dp0logs"
 set "LOG_FILE=%LOG_DIR%\autostart.log"
 set "DOCUTRANSLATE_NONINTERACTIVE=1"
+set "DOCUTRANSLATE_STRICT_PORT=1"
+set "PYTHONUTF8=1"
+set "PYTHONIOENCODING=utf-8"
 
 if not exist "%LOG_DIR%" mkdir "%LOG_DIR%"
 

docutranslate/app.py

@@ -10,6 +10,7 @@ import os
 import re
 import shutil
 import socket
+import sys
 import tempfile
 import time
 import uuid
@@ -2654,6 +2655,11 @@ def run_app(host=None, port: int | None = None, enable_CORS=False,
     try:
         port_to_use = find_free_port(initial_port)
         if port_to_use != initial_port:
+            strict_port = os.environ.get(
+                "DOCUTRANSLATE_STRICT_PORT", ""
+            ).strip().lower() in {"1", "true", "yes", "on"}
+            if strict_port:
+                raise RuntimeError(f"端口 {initial_port} 已被占用")
             print(f"端口 {initial_port} 被占用，将使用端口 {port_to_use} 代替")
         print(f"正在启动 DocuTranslate WebUI 版本号：{__version__}")
         app.state.port_to_use = port_to_use
@@ -2668,7 +2674,8 @@ def run_app(host=None, port: int | None = None, enable_CORS=False,
             )
         uvicorn.run(app, host=host, port=port_to_use, workers=1)
     except Exception as e:
-        print(f"启动失败: {e}")
+        print(f"启动失败: {e}", file=sys.stderr)
+        raise
 
 
 if __name__ == "__main__":

docutranslate/cli.py

@@ -4,7 +4,19 @@ import argparse
 import sys # 用于检查命令行参数数量
 
 
+def _configure_stdio() -> None:
+    """Keep redirected Windows service logs Unicode-safe."""
+    for stream in (sys.stdout, sys.stderr):
+        reconfigure = getattr(stream, "reconfigure", None)
+        if callable(reconfigure):
+            try:
+                reconfigure(encoding="utf-8", errors="backslashreplace")
+            except (OSError, ValueError):
+                pass
+
+
 def main():
+    _configure_stdio()
     parser = argparse.ArgumentParser(
         description="DocuTranslate: 一个文档翻译工具。",
         # 更新示例，展示如何使用 host 参数

run.bat

@@ -4,6 +4,11 @@ setlocal
 REM 切换到脚本所在目录
 cd /d "%~dp0"
 
+REM 后台计划任务默认可能使用 cp1252，强制使用 UTF-8 输出日志
+chcp 65001 >nul
+set "PYTHONUTF8=1"
+set "PYTHONIOENCODING=utf-8"
+
 REM 检查 .venv 是否存在
 if not exist ".venv\Scripts\activate.bat" (
     echo [ERROR] 未找到 .venv\Scripts\activate.bat
@@ -16,9 +21,9 @@ call ".venv\Scripts\activate.bat"
 
 REM 如果传了参数，就用参数；否则默认用当前目录
 if "%~1"=="" (
-    python docutranslate/cli.py -i --host 0.0.0.0
+    ".venv\Scripts\python.exe" -u docutranslate/cli.py -i --host 0.0.0.0
 ) else (
-    python docutranslate/cli.py -i --host 0.0.0.0 %*
+    ".venv\Scripts\python.exe" -u docutranslate/cli.py -i --host 0.0.0.0 %*
 )
 
 set EXIT_CODE=%ERRORLEVEL%

setup_autostart.ps1

@@ -28,6 +28,7 @@ try {
         -StartWhenAvailable `
         -MultipleInstances IgnoreNew `
         -ExecutionTimeLimit ([TimeSpan]::Zero) `
+        -AllowStartIfOnBatteries `
         -DontStopIfGoingOnBatteries `
         -RestartCount 3 `
         -RestartInterval (New-TimeSpan -Minutes 1)
@@ -36,6 +37,7 @@ try {
         -StartWhenAvailable `
         -MultipleInstances IgnoreNew `
         -ExecutionTimeLimit ([TimeSpan]::Zero) `
+        -AllowStartIfOnBatteries `
         -DontStopIfGoingOnBatteries
 }
 
@@ -57,6 +59,7 @@ $WatchdogSettings = New-ScheduledTaskSettingsSet `
     -StartWhenAvailable `
     -MultipleInstances IgnoreNew `
     -ExecutionTimeLimit (New-TimeSpan -Minutes 2) `
+    -AllowStartIfOnBatteries `
     -DontStopIfGoingOnBatteries
 
 Register-ScheduledTask `

tests/test_service_startup.py

@@ -0,0 +1,28 @@
+import os
+import unittest
+from unittest.mock import patch
+
+from docutranslate import app
+
+
+class ServiceStartupTest(unittest.TestCase):
+    @patch.dict(os.environ, {"DOCUTRANSLATE_STRICT_PORT": "1"}, clear=False)
+    @patch.object(app, "find_free_port", return_value=8011)
+    def test_strict_port_rejects_occupied_configured_port(self, _find_free_port):
+        with self.assertRaisesRegex(RuntimeError, "端口 8010 已被占用"):
+            app.run_app(host="127.0.0.1", port=8010)
+
+    @patch.dict(os.environ, {"DOCUTRANSLATE_STRICT_PORT": ""}, clear=False)
+    @patch.object(app.uvicorn, "run")
+    @patch.object(app, "find_free_port", return_value=8011)
+    def test_interactive_mode_can_still_fall_back_to_free_port(
+        self, _find_free_port, uvicorn_run
+    ):
+        app.run_app(host="127.0.0.1", port=8010)
+        uvicorn_run.assert_called_once_with(
+            app.app, host="127.0.0.1", port=8011, workers=1
+        )
+
+
+if __name__ == "__main__":
+    unittest.main()