u

code/go-project/base-farmework/internal/pkg/middleware/logging.go

@@ -0,0 +1,11 @@
+package middleware
+
+import (
+	"fmt"
+	"net/http"
+)
+
+// LoggingMiddleware logs incoming requests
+func LoggingMiddleware(w http.ResponseWriter, r *http.Request) {
+	fmt.Printf("Request received: %s %s\n", r.Method, r.URL.Path)
+}

code/go-project/base-farmework/internal/pkg/router/router.go

@@ -0,0 +1,98 @@
+package router
+
+import (
+	"net/http"
+)
+
+// HandlerFunc defines the signature of a handler function
+type HandlerFunc func(w http.ResponseWriter, r *http.Request)
+
+// Router struct holds all the routes, middlewares, and groups
+type Router struct {
+	routes     map[string]map[string]HandlerFunc
+	middleware []HandlerFunc
+	groups     map[string]*Group
+}
+
+// NewRouter creates a new Router instance
+func NewRouter() *Router {
+	return &Router{
+		routes: make(map[string]map[string]HandlerFunc),
+		groups: make(map[string]*Group),
+	}
+}
+
+// Use adds a global middleware to the router
+func (r *Router) Use(middleware HandlerFunc) {
+	r.middleware = append(r.middleware, middleware)
+}
+
+// Handle registers a route with a method and a handler
+func (r *Router) Handle(method, path string, handler HandlerFunc) {
+	if _, exists := r.routes[method]; !exists {
+		r.routes[method] = make(map[string]HandlerFunc)
+	}
+	r.routes[method][path] = handler
+}
+
+// Group creates a new group with a prefix
+func (r *Router) Group(prefix string) *Group {
+	group := &Group{
+		router: r,
+		prefix: prefix,
+	}
+	r.groups[prefix] = group
+	return group
+}
+
+// Group struct represents a group of routes with a common prefix
+type Group struct {
+	router     *Router
+	prefix     string
+	middleware []HandlerFunc
+}
+
+// Use adds a middleware to a group
+func (g *Group) Use(middleware HandlerFunc) {
+	g.middleware = append(g.middleware, middleware)
+}
+
+// Handle registers a route in the group
+func (g *Group) Handle(method, path string, handler HandlerFunc) {
+	fullPath := g.prefix + path
+
+	// Apply group middleware first
+	for _, m := range g.middleware {
+		g.router.Use(m)
+	}
+
+	// Register the route
+	g.router.Handle(method, fullPath, handler)
+}
+
+// Get registers a GET route in the group
+func (g *Group) Get(path string, handler HandlerFunc) {
+	g.Handle("GET", path, handler)
+}
+
+// Post registers a POST route in the group
+func (g *Group) Post(path string, handler HandlerFunc) {
+	g.Handle("POST", path, handler)
+}
+
+// ServeHTTP is the main entry point for handling HTTP requests
+func (r *Router) ServeHTTP(w http.ResponseWriter, req *http.Request) {
+	// Apply global middlewares
+	for _, m := range r.middleware {
+		m(w, req)
+	}
+
+	// Route matching
+	if handlers, ok := r.routes[req.Method]; ok {
+		if handler, ok := handlers[req.URL.Path]; ok {
+			handler(w, req)
+			return
+		}
+	}
+	http.NotFound(w, req)
+}

notes/前端开发/nvm/windows下nvm安装和使用.md

@@ -0,0 +1,143 @@
+# **一、独立下载安装nodejs（若想切换使用多版本nodejs，请直接转至第二节）**
+
+1、访问https://nodejs.org/en/地址，切换到download目录下的Prebuilt Installer的tab页，选择相应版本进行下载：
+
+![img](./assets/windows%E4%B8%8Bnvm%E5%AE%89%E8%A3%85%E5%92%8C%E4%BD%BF%E7%94%A8/81544-20240410163414144-427544868.png)
+
+或者直接去列表里查找想要下载的版本：https://nodejs.org/dist/
+
+![img](./assets/windows%E4%B8%8Bnvm%E5%AE%89%E8%A3%85%E5%92%8C%E4%BD%BF%E7%94%A8/81544-20241018114323936-1844242583.png)
+
+ 
+
+2、安装完成后，添加环境变量
+
+![img](./assets/windows%E4%B8%8Bnvm%E5%AE%89%E8%A3%85%E5%92%8C%E4%BD%BF%E7%94%A8/81544-20240410163841369-1133262585.png)
+
+ Pah中新建nodejs安装路径，如：D:\Program Files\node\nodejs
+
+ 3、使用cmd命令，查看node版本
+
+![img](./assets/windows%E4%B8%8Bnvm%E5%AE%89%E8%A3%85%E5%92%8C%E4%BD%BF%E7%94%A8/81544-20240410164106670-257379519.png)
+
+ 4、查看npm默认存放的位置
+
+```
+npm get prefix
+npm get cache
+```
+
+![img](./assets/windows%E4%B8%8Bnvm%E5%AE%89%E8%A3%85%E5%92%8C%E4%BD%BF%E7%94%A8/81544-20240410164727553-1497806551.png)
+
+ 如果需要修改指定路径可以进行修改,若进行修改需要相应添加系统变量：
+
+```
+npm config set prefix "D:\..."
+npm config set cache "D:\..."
+```
+
+ 
+
+# **二、安装nvm，并利用nvm安装管理多个nodejs版本（无需独立下载安装nodejs，若已安装需要先卸载）**
+
+1、安装nvm
+
+nvm是一个简单的bash脚本，它是用来管理系统中多个已存的Node.js版本
+
+注：如果在安装nvm前已经安装了node，建议先将原来的node进行卸载或删除，可通过where node查看node安装路径：
+
+![img](./assets/windows%E4%B8%8Bnvm%E5%AE%89%E8%A3%85%E5%92%8C%E4%BD%BF%E7%94%A8/81544-20230815163105131-1420632637.png)
+
+（1）下载并安装nvm，下载地址：https://github.com/coreybutler/nvm-windows/releases，下载.zip后缀的这个文件，下载后解压安装即可
+
+![img](./assets/windows%E4%B8%8Bnvm%E5%AE%89%E8%A3%85%E5%92%8C%E4%BD%BF%E7%94%A8/81544-20230815154226238-359528291.png)
+
+（2）配置镜像源，从安装目录中找到settings.txt文件将一下配置复制进去
+
+![img](./assets/windows%E4%B8%8Bnvm%E5%AE%89%E8%A3%85%E5%92%8C%E4%BD%BF%E7%94%A8/81544-20230815154356500-781734063.png)
+
+```
+node_mirror: http://npmmirror.com/mirrors/node/
+npm_mirror: http://registry.npmmirror.com/mirrors/npm/
+```
+
+否则执行nvm list available会报错：
+
+![img](./assets/windows%E4%B8%8Bnvm%E5%AE%89%E8%A3%85%E5%92%8C%E4%BD%BF%E7%94%A8/81544-20240410153748815-1410794935.png)
+
+
+
+（3）查看安装的版本号，检查安装是否成功：nvm
+
+![img](./assets/windows%E4%B8%8Bnvm%E5%AE%89%E8%A3%85%E5%92%8C%E4%BD%BF%E7%94%A8/81544-20230815160406164-241997583.png)
+
+ （4）安装完后，通过环境变量可以查看到相关路径设置：
+
+![img](./assets/windows%E4%B8%8Bnvm%E5%AE%89%E8%A3%85%E5%92%8C%E4%BD%BF%E7%94%A8/81544-20230815160700818-1341311032.png)
+
+ 
+
+2、使用nvm安装多版本nodejs
+
+（1）查看nodejs所有版本
+
+```
+nvm list available
+```
+
+![img](./assets/windows%E4%B8%8Bnvm%E5%AE%89%E8%A3%85%E5%92%8C%E4%BD%BF%E7%94%A8/81544-20230815160850386-1312464558.png)
+
+（2）安装指定版本
+
+```
+nvm install 18.16.0
+```
+
+![img](./assets/windows%E4%B8%8Bnvm%E5%AE%89%E8%A3%85%E5%92%8C%E4%BD%BF%E7%94%A8/81544-20230815161016883-1770065586.png)
+
+（3）使用指定版本或切换到指定版本
+
+```
+nvm ues 18.16.0
+```
+
+![img](./assets/windows%E4%B8%8Bnvm%E5%AE%89%E8%A3%85%E5%92%8C%E4%BD%BF%E7%94%A8/81544-20230815161656144-1744125380.png)
+
+（4）查看当前版本信息
+
+```
+node -v （查看当前版本）
+nvm list （查看已安装的所有nodejs版本）
+```
+
+![img](./assets/windows%E4%B8%8Bnvm%E5%AE%89%E8%A3%85%E5%92%8C%E4%BD%BF%E7%94%A8/81544-20230815162127646-1370878516.png)
+
+（5）卸载指定版本
+
+```
+nvm uninstall 18.16.0
+```
+
+（6）其他nvm常用命令
+
+```
+nvm off                     // 禁用node.js版本管理(不卸载任何东西)
+nvm on                      // 启用node.js版本管理
+nvm install <version>       // 安装node.js的命名 version是版本号 例如：nvm install 8.12.0
+nvm uninstall <version>     // 卸载node.js是的命令，卸载指定版本的nodejs，当安装失败时卸载使用
+nvm ls                      // 显示所有安装的node.js版本
+nvm list available          // 显示可以安装的所有node.js的版本
+nvm use <version>           // 切换到使用指定的nodejs版本
+nvm v                       // 显示nvm版本
+nvm install stable          // 安装最新稳定版
+```
+
+
+
+3、遇到问题
+
+在新机上安装nvm以及nodejs，安装完后 nvm ues 18.16.0 设置当前版本没有反应，
+
+通过查看在安装nvm的时候，设置的nodejs路径下（settings.txt文件里的path值）没有相应文件夹，也就是系统变量下NVM_SYMLINK的路径文件夹不存在。
+
+解决方案：下载任意版本nodejs安装到系统变量NVM_SYMLINK的路径文件夹下，然后再卸载掉，通过 nvm ues 18.16.0再切换到指定版本，可解决。