feat: 重构配置管理，使用数据库替代环境变量，优化系统配置读取

2026-05-23 15:37:58 +08:00
parent ea95886cfc
commit 92b063c4c4
10 changed files with 249 additions and 129 deletions
@@ -0,0 +1,61 @@
+// server/plugins/initConfig.ts - 服务启动时检查 system_config 表，补全缺失的默认配置
+// 只在首次部署或新增配置项时写入，不覆盖已有值；不读取环境变量
+import { prisma } from "~~/server/utils/db";
+
+// 所有系统配置的默认值，key 对应 system_config.key
+// 管理员后续通过后台修改 value；openai_api_key 默认留空，需手动填入
+const DEFAULT_CONFIGS = [
+  {
+    key: "openai_api_key",
+    value: "",
+    description: "OpenAI 或兼容 API Key，仅服务端使用，不能返回给前端"
+  },
+  {
+    key: "openai_api_base",
+    value: "https://api.openai.com/v1",
+    description: "OpenAI 兼容 API base URL，例如 https://api.openai.com/v1"
+  },
+  {
+    key: "openai_model",
+    value: "gpt-3.5-turbo",
+    description: "Chat Completions 使用的模型名"
+  },
+  {
+    key: "max_tokens",
+    value: "500",
+    description: "单次回答最大 token 数"
+  },
+  {
+    key: "temperature",
+    value: "0.7",
+    description: "模型采样温度，越低越稳定，范围 0~2"
+  },
+  {
+    key: "openai_stream_max_sse_line_bytes",
+    value: "1048576",
+    description: "单行 SSE data 最大字节数，防止异常流无限堆内存"
+  }
+];
+
+export default defineNitroPlugin(async () => {
+  try {
+    const existingRows = await prisma.systemConfig.findMany({
+      select: { key: true }
+    });
+    const existingKeys = new Set(existingRows.map((r) => r.key));
+
+    const missing = DEFAULT_CONFIGS.filter((c) => !existingKeys.has(c.key));
+    if (missing.length === 0) return;
+
+    await prisma.systemConfig.createMany({
+      data: missing,
+      skipDuplicates: true
+    });
+    console.log(
+      `[initConfig] 已写入 ${missing.length} 项默认系统配置：${missing.map((c) => c.key).join(", ")}`
+    );
+  } catch (err) {
+    // 初始化失败不阻断进程启动，记录警告供排查
+    console.error("[initConfig] 系统配置初始化失败：", String(err));
+  }
+});