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 # Kenaito Config Center
 
+[English](README_EN.md) | 中文
+
 基于 Go 重构的集中配置管理平台，支持多应用、多环境、多业务组的配置管理与分发。
 
 ## 技术栈
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+# Kenaito Config Center
+
+A centralized configuration management platform rebuilt with Go, supporting multi-application, multi-environment, and multi-business-group configuration management and distribution.
+
+## Tech Stack
+
+- **Backend**: Go + Gin + xorm + MySQL
+- **Frontend**: Vue 2 + Vite 5 + Element UI 2
+- **Clients**: Go / Java (Spring Boot 2.x) / Python / Node.js / Perl / Lua / PHP / .NET / C / C++ / Rust / Ruby
+
+## Project Structure
+
+```
+kenaito-conf/
+├── server/                              # Go admin backend (Gin + xorm)
+├── web/                                 # Vue 2 frontend
+├── kenaito-conf-go-client/              # Go client SDK
+├── kenaito-conf-go-client-demo/         # Go client demo
+├── kenaito-conf-springboot2-client/     # Java Spring Boot 2.x client SDK (JDK 8+)
+├── kenaito-conf-springboot2-client-demo/# Spring Boot 2.x client demo (port 8081)
+├── kenaito-conf-python-client/          # Python client SDK (Python 3.10+)
+├── kenaito-conf-python-client-demo/     # Python client demo (port 8082)
+├── kenaito-conf-nodejs-client/          # Node.js client SDK (Node.js 18+)
+├── kenaito-conf-nodejs-client-demo/     # Node.js client demo (port 8083)
+├── kenaito-conf-perl-client/            # Perl client SDK (Perl 5.16+)
+├── kenaito-conf-perl-client-demo/       # Perl client demo
+├── kenaito-conf-php-client/             # PHP client SDK (PHP 7.4+)
+├── kenaito-conf-php-client-demo/        # PHP client demo
+├── kenaito-conf-dotnet-client/          # .NET client SDK (.NET 6.0+)
+├── kenaito-conf-dotnet-client-demo/     # .NET client demo
+├── kenaito-conf-lua-client/             # Lua client SDK (Lua 5.1+)
+└── kenaito-conf-lua-client-demo/        # Lua client demo
+```
+
+## Quick Start
+
+### 1. Start Backend
+
+```bash
+cd server
+```
+
+Edit `application.properties` to set the `active` environment, then edit `application-{active}.properties` to configure database connection and other settings:
+
+```properties
+# application.properties
+active=dev
+# application-dev.properties
+server.port=8080
+database.host=127.0.0.1
+database.port=3306
+database.name=kenaito_conf
+database.user=root
+database.password=your_password
+jwt.secret=your-jwt-secret
+jwt.expireHours=24
+```
+
+Start the service (tables and default data will be initialized automatically on first startup):
+
+```bash
+go run cmd/main.go -config application.properties
+# Or build and run
+go build -o bin/server cmd/main.go
+./bin/server -config application.properties
+```
+
+The backend listens on `:8080` by default.
+
+### 2. Start Frontend
+
+```bash
+cd web
+npm install
+npm run dev
+```
+
+The frontend listens on `:3000` by default and automatically proxies API requests to the backend.
+
+### 3. Access
+
+Open http://localhost:3000
+
+Default admin credentials: `admin` / Password: `admin123`
+
+## Client Integration
+
+### Go Client
+
+```go
+import client "kenaito-conf/go-client"
+
+cfg := &client.Config{
+    BaseURL:      "http://localhost:8080",
+    AppName:      "myapp",
+    Env:          "dev",
+    Version:      "latest",
+    Token:        "app-token",
+    SyncInterval: 30,
+    CacheDir:     ".",
+}
+
+c := client.New(cfg)
+
+// Register change callback
+c.OnChange(func (changed map[string]string) {
+    for k, v := range changed {
+        fmt.Printf("%s = %s\n", k, v)
+    }
+})
+
+// Start (fetch all configs + enable periodic sync)
+c.Start()
+defer c.Stop()
+
+// Read configuration
+dbHost := c.Get("db.host")
+```
+
+### Java Spring Boot 2.x Client
+
+Suitable for JDK 8+ and Spring Boot 2.x projects, supports automatic config refresh and dynamic `@Value` updates.
+
+**1. Add Dependency**
+
+```xml
+<dependency>
+    <groupId>cn.odboy</groupId>
+    <artifactId>kenaito-conf-springboot2-client</artifactId>
+    <version>1.0.3</version>
+</dependency>
+```
+
+**2. Add Configuration** (`application.properties`)
+
+```properties
+# Config center settings
+kenaito.configcenter.base-url=http://localhost:8080
+# Application name (required)
+kenaito.configcenter.app-name=myapp
+# Environment (dev/daily/prod)
+kenaito.configcenter.env=daily
+# Config version
+kenaito.configcenter.version=latest
+# Auth token (optional)
+kenaito.configcenter.token=app-token
+# Sync interval (seconds)
+kenaito.configcenter.sync-interval=30
+```
+
+**3. Use Configuration**
+
+```java
+@Value("${database.host:localhost}")
+private String databaseHost;
+
+@Value("${database.port:3306}")
+private Integer databasePort;
+```
+
+`@Value` fields are automatically refreshed when configuration changes, no application restart required. See [Spring Boot 2 Client Documentation](kenaito-conf-springboot2-client/README.md) for details.
+
+### Python Client
+
+Suitable for Python 3.10+ projects.
+
+**1. Install**
+
+```bash
+cd kenaito-conf-python-client
+pip3 install -e .
+```
+
+**2. Usage**
+
+```python
+from kenaito_conf import Config, ConfigClient
+
+config = Config(
+    base_url="http://localhost:8080",
+    app_name="my-app",
+    env="daily",
+    sync_interval=30,
+)
+
+client = ConfigClient(config)
+
+# Listen for config changes
+def on_change(changed):
+    for k, v in changed.items():
+        print(f"config changed: {k} = {v}")
+
+client.on_change(on_change)
+
+# Start client (fetch configs + enable periodic sync)
+client.start()
+
+# Get configuration
+value = client.get("database.host")
+all_configs = client.get_all()
+
+# Stop
+client.stop()
+```
+
+### Node.js Client
+
+Suitable for Node.js 18+ projects.
+
+**1. Install**
+
+```bash
+cd kenaito-conf-nodejs-client
+npm link
+```
+
+Then link in your project:
+
+```bash
+npm link kenaito-conf
+```
+
+**2. Usage**
+
+```javascript
+import {Config, ConfigClient} from 'kenaito-conf';
+
+const config = new Config({
+    baseUrl: 'http://localhost:8080',
+    appName: 'my-app',
+    env: 'daily',
+    syncInterval: 30,
+});
+
+const client = new ConfigClient(config);
+
+// Listen for config changes
+client.onChange((changed) => {
+    for (const [k, v] of Object.entries(changed)) {
+        console.log(`config changed: ${k} = ${v}`);
+    }
+});
+
+// Start client (fetch configs + enable periodic sync)
+await client.start();
+
+// Get configuration
+const value = client.get('database.host');
+const allConfigs = client.getAll();
+
+// Stop
+client.stop();
+```
+
+### Perl Client
+
+Suitable for Perl 5.16+ projects.
+
+**1. Install**
+
+```bash
+cd kenaito-conf-perl-client
+cpanm .
+```
+
+Or directly include the lib path in your project:
+
+```perl
+use lib '/path/to/kenaito-conf-perl-client/lib';
+```
+
+**2. Usage**
+
+```perl
+use Kenaito::Conf::Config;
+use Kenaito::Conf::Client;
+
+my $cfg = Kenaito::Conf::Config->new(
+    base_url      => 'http://localhost:8080',
+    app_name      => 'my-app',
+    env           => 'daily',
+    sync_interval => 10,
+);
+
+my $client = Kenaito::Conf::Client->new(config => $cfg);
+
+# Listen for config changes
+$client->on_change(sub {
+    my ($changed) = @_;
+    for my $k (keys %$changed) {
+        print "config changed: $k = $changed->{$k}\n";
+    }
+});
+
+# Start client (fetch configs)
+$client->start();
+
+# Get configuration
+my $value = $client->get('database.host');
+my $all   = $client->get_all();
+
+# Manual sync
+$client->sync_once();
+
+# Stop
+$client->stop();
+```
+
+### Lua Client
+
+Suitable for Lua 5.1+ projects.
+
+**1. Install**
+
+```bash
+cd kenaito-conf-lua-client
+luarocks make
+```
+
+Or manually add the module path:
+
+```lua
+package.path = package.path .. ";/path/to/kenaito-conf-lua-client/?.lua"
+```
+
+**2. Usage**
+
+```lua
+local kenaito = require("kenaito_conf")
+
+local config = kenaito.Config.new({
+    base_url = "http://localhost:8080",
+    app_name = "my-app",
+    env = "daily",
+    sync_interval = 10,
+})
+
+local client = kenaito.Client.new({ config = config })
+
+-- Listen for config changes
+client:on_change(function(changed)
+    for k, v in pairs(changed) do
+        print("config changed: " .. k .. " = " .. v)
+    end
+end)
+
+-- Start client (fetch configs)
+client:start()
+
+-- Get configuration
+local value = client:get("database.host")
+local all = client:get_all()
+
+-- Manual sync
+client:sync_once()
+
+-- Stop
+client:stop()
+```
+
+### PHP Client
+
+Suitable for PHP 7.4+ projects.
+
+**1. Install**
+
+```bash
+cd kenaito-conf-php-client
+composer install
+```
+
+Or include in your project:
+
+```bash
+composer require kenaito/conf-client
+```
+
+**2. Usage**
+
+```php
+require_once 'vendor/autoload.php';
+
+use Kenaito\Conf\Config;
+use Kenaito\Conf\Client;
+
+$config = new Config([
+    'baseUrl' => 'http://localhost:8080',
+    'appName' => 'my-app',
+    'env' => 'daily',
+    'syncInterval' => 10,
+]);
+
+$client = new Client($config);
+
+// Listen for config changes
+$client->onChange(function(array $changed) {
+    foreach ($changed as $key => $value) {
+        echo "config changed: $key = $value\n";
+    }
+});
+
+// Start client (fetch configs)
+$client->start();
+
+// Get configuration
+$value = $client->get('database.host');
+$all = $client->getAll();
+
+// Manual sync
+$client->syncOnce();
+
+// Stop
+$client->stop();
+```
+
+## API Overview
+
+### Admin API (JWT Authentication Required)
+
+| Method | Path                                  | Description                                |
+|--------|---------------------------------------|--------------------------------------------|
+| POST   | `/user/login`                         | User login                                 |
+| GET    | `/user/loginUserInfo`                 | Current user info                          |
+| POST   | `/user/logout`                        | User logout                                |
+| GET    | `/admin/menus`                        | Menu list                                  |
+| POST   | `/admin/config/list`                  | Config list (filter by env, app)           |
+| POST   | `/admin/config/add`                   | Add config                                 |
+| POST   | `/admin/config/update`                | Update config                              |
+| GET    | `/admin/config/:id`                   | Config details                             |
+| POST   | `/admin/config/delete/:id`            | Delete config                              |
+| GET    | `/admin/config/configHistories/:id`   | Config history                             |
+| POST   | `/admin/config/rollback/:id`          | Rollback config                            |
+| POST   | `/admin/app/list`                     | App list (paginated)                       |
+| GET    | `/admin/app/:id`                      | App details                                |
+| POST   | `/admin/app/add`                      | Add app                                    |
+| POST   | `/admin/app/update`                   | Update app                                 |
+| POST   | `/admin/app/delete/:id`               | Delete app (soft delete)                   |
+| POST   | `/admin/app/switch/:id`               | Toggle app status                          |
+| POST   | `/admin/app/generateToken/:id`        | Generate app token                         |
+| POST   | `/admin/app/deleteToken/:id`          | Delete app token                           |
+| GET    | `/admin/app/options`                  | App options (dropdown)                     |
+| GET    | `/admin/user/list`                    | User list (filter by username, type, group, status) |
+| POST   | `/admin/user/add`                     | Add user                                   |
+| POST   | `/admin/user/update`                  | Update user                                |
+| POST   | `/admin/user/delete/:id`              | Delete user (soft delete)                  |
+| POST   | `/admin/user/resetPassword/:id`       | Reset password                             |
+| POST   | `/admin/user/switch/:id`              | Toggle user status                         |
+| GET    | `/admin/user/options`                 | User options (dropdown)                    |
+| GET    | `/admin/group/list`                   | Business group list                        |
+| GET    | `/admin/group/get/:id`                | Business group details                     |
+| POST   | `/admin/group/add`                    | Add business group                         |
+| POST   | `/admin/group/update`                 | Update business group                      |
+| POST   | `/admin/group/switch/:id`             | Toggle business group status               |
+| GET    | `/admin/group/options`                | Business group options (dropdown)          |
+| GET    | `/admin/profile/list`                 | Environment list                           |
+| GET    | `/admin/profile/:id`                  | Environment details                        |
+| POST   | `/admin/profile/add`                  | Add environment                            |
+| POST   | `/admin/profile/update`               | Update environment                         |
+| POST   | `/admin/profile/delete/:id`           | Delete environment                         |
+| POST   | `/admin/profile/switch/:id`           | Toggle environment status                  |
+| GET    | `/admin/profile/options`              | Environment options (dropdown)             |
+
+### Client API (No JWT, Authenticated via App Token)
+
+| Method | Path                         | Description              |
+|--------|------------------------------|--------------------------|
+| POST   | `/api/fetchAllConfigs`       | Fetch all configs        |
+| POST   | `/api/fetchChangedConfigs`   | Fetch incremental changes|