diff --git a/package.json b/package.json
index bf5da6e..573970d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@kevisual/use-config",
-  "version": "1.0.10",
+  "version": "1.0.11",
   "types": "dist/config.d.ts",
   "scripts": {
     "build": "npm run clean && tsup",
@@ -20,13 +20,13 @@
   "license": "UNLICENSED",
   "type": "module",
   "devDependencies": {
-    "@types/node": "^22.13.5",
-    "dotenv": "^16.4.7",
-    "fast-glob": "^3.3.2",
+    "@types/node": "^22.14.1",
+    "dotenv": "^16.5.0",
+    "fast-glob": "^3.3.3",
     "json-schema-to-ts": "^3.1.1",
     "json5": "^2.2.3",
     "tsup": "^8.4.0",
-    "typescript": "^5.7.3"
+    "typescript": "^5.8.3"
   },
   "exports": {
     ".": {
@@ -54,6 +54,6 @@
     "dotenv": "^16.4.7"
   },
   "dependencies": {
-    "@kevisual/load": "^0.0.4"
+    "@kevisual/load": "^0.0.6"
   }
 }
\ No newline at end of file
diff --git a/src/env.ts b/src/env.ts
index 34ae457..e8d91a4 100644
--- a/src/env.ts
+++ b/src/env.ts
@@ -4,39 +4,33 @@ import dotenv from 'dotenv';
 
 // 配置类型
 export type Config = {
-  port: number;
-  tokenSecret?: string;
-  redis?: {
-    host?: string;
-    port?: number;
-    password?: string;
-    version?: string;
-    [key: string]: any;
-  };
-  posgtres?: {
-    host?: string;
-    port?: number;
-    user?: string;
-    password?: string;
-    database?: string;
-    [key: string]: any;
-  };
-  minio?: {
-    endPoint?: string;
-    bucketName?: string;
-    useSSL?: boolean;
-    accessKey?: string;
-    secretKey?: string;
-    [key: string]: any;
-  };
-  mongo?: {
-    uri?: string;
-    [key: string]: any;
-  };
+  PORT: number;
+  // redis
+  REDIS_HOST?: string;
+  REDIS_PORT?: number;
+  REDIS_PASSWORD?: string;
+  REDIS_VERSION?: string;
+  REDIS_DB?: number;
+  REDIS_USER?: string;
+  // postgres
+  POSTGRES_HOST?: string;
+  POSTGRES_PORT?: number;
+  POSTGRES_PASSWORD?: string;
+  POSTGRES_USER?: string;
+  POSTGRES_DB?: string;
+  // minio
+  MINIO_ENDPOINT?: string;
+  MINIO_BUCKET_NAME?: string;
+  MINIO_ACCESS_KEY?: string;
+  MINIO_SECRET_KEY?: string;
+  MINIO_USE_SSL?: boolean;
+  // mongo
+  MONGO_URI?: string;
+  //
   [key: string]: any;
 };
 export const initConfig: Config = {
-  port: 3000,
+  PORT: 3000,
 };
 export const fileIsExist = (path: string) => {
   try {
@@ -49,9 +43,21 @@ export const fileIsExist = (path: string) => {
 export const getDirname = () => {
   return process.cwd();
 };
-type ConfigOpts = {
+/**
+ * 配置选项
+ */
+export type ConfigOpts = {
+  /**
+   * 环境配置文件路径, default: 自定设置，优先级最高， process.cwd() + envConfigFile
+   */
   envConfigFile?: string;
+  /**
+   * 当前工作目录, default: process.cwd()
+   */
   cwd?: string;
+  /**
+   * 配置文件名, default: .env
+   */
   fileName?: string;
 };
 /**
@@ -82,9 +88,17 @@ export const getConfigFile = (opts?: ConfigOpts) => {
   if (lastLast) return lastLastPath;
   return '';
 };
-
-// 初始化读取配置文件
-export const init = (opts?: ConfigOpts & { dotenvOpts?: dotenv.DotenvConfigOptions }): Config => {
+type GetConfigOpts = ConfigOpts & { dotenvOpts?: dotenv.DotenvConfigOptions };
+/**
+ * 初始化配置, 不会把配置内容挂载到全局
+ * @param opts 配置选项
+ * @param opts.envConfigFile 环境配置文件路径, default: 为空，process.cwd() + envConfigFile
+ * @param opts.cwd 当前工作目录, default: process.cwd()
+ * @param opts.fileName 配置文件名, default: .env
+ * @param opts.dotenvOpts dotenv配置选项
+ * @returns 配置
+ */
+export const getConfig = (opts?: GetConfigOpts): Config => {
   if (opts?.dotenvOpts) {
     const prased = dotenv.config(opts.dotenvOpts).parsed as Config;
     if (prased) {
@@ -109,13 +123,28 @@ export const init = (opts?: ConfigOpts & { dotenvOpts?: dotenv.DotenvConfigOptio
  *
  * @returns Config
  */
-export const useConfig = <T>(): Config & T => {
+export const useConfig = <T>(onlyInitConfig?: GetConfigOpts): Config & T => {
   const config = (global as any).config;
-  const _config = config || init();
+  const _config = config || getConfig(onlyInitConfig);
   !config && ((global as any)['config'] = _config);
   return _config;
 };
 
+/**
+ * 更新配置
+ * @param configOpts 配置
+ * @param opts 配置选项
+ * @param opts.cwd 当前工作目录, default: process.cwd()
+ * @param opts.fileName 配置文件名, default: config.json
+ */
+export const updateConfig = (configOpts: GetConfigOpts) => {
+  const _config = (global as any).config || {};
+  const newConfig = getConfig(configOpts);
+  Object.assign(_config, newConfig);
+  (global as any).config = _config;
+  return _config;
+};
+
 export const useKey = (key: string, opts?: { defaultValue?: string; isNumber?: boolean; isBoolean?: boolean }): string | number | boolean => {
   let v = useConfig()[key];
   if (!v) {
@@ -124,11 +153,46 @@ export const useKey = (key: string, opts?: { defaultValue?: string; isNumber?: b
   if (!v) {
     return opts?.defaultValue || null;
   }
-  if (opts?.isNumber) {
+  if (opts?.isNumber && typeof v === 'string') {
     return Number(v);
   }
-  if (opts?.isBoolean) {
+  if (opts?.isBoolean && typeof v === 'string') {
     return v === 'true';
   }
   return v;
 };
+
+/**
+ * 写入json配置文件
+ * @param config 配置
+ * @param opts 配置选项
+ * @param opts.cwd 当前工作目录, default: process.cwd()
+ * @param opts.fileName 配置文件名, default: config.json
+ */
+export const writeJsonConfig = (config = {}, opts?: Omit<ConfigOpts, 'envConfigFile'>) => {
+  const filePath = getConfigFile({ ...opts, fileName: opts?.fileName || 'config.json' });
+  if (!filePath) {
+    throw new Error(`未找到配置文件: ${opts?.fileName || 'config.json'}`);
+  }
+  fs.writeFileSync(filePath, JSON.stringify(config, null, 2));
+};
+
+/**
+ * 读取json配置文件
+ * @param opts 配置选项
+ * @param opts.cwd 当前工作目录, default: process.cwd()
+ * @param opts.fileName 配置文件名, default: config.json
+ * @returns 配置
+ */
+export const readJsonConfig = (opts?: Omit<ConfigOpts, 'envConfigFile'>) => {
+  const filePath = getConfigFile({ ...opts, fileName: opts?.fileName || 'config.json' });
+  if (!filePath) {
+    throw new Error(`未找到配置文件: ${opts?.fileName || 'config.json'}`);
+  }
+  try {
+    const value = JSON.parse(fs.readFileSync(filePath, 'utf-8'));
+    return value;
+  } catch (e) {
+    return {};
+  }
+};