Go言語のHTTPサーバー機能を使って動的ルーティングのキャッシュリフレッシュ機能を実装するにはどうすればよいですか?

package main

import (
    "fmt"
    "io"
    "net/http"
)

func main() {
    http.HandleFunc("/", helloHandler)
    http.ListenAndServe(":8080", nil)
}

func helloHandler(w http.ResponseWriter, r *http.Request) {
    io.WriteString(w, "Hello, world!")
}

type Cache struct {
    data map[string]string
}

func NewCache() *Cache {
    return &Cache{
        data: make(map[string]string),
    }
}

func (c *Cache) Get(key string) (string, bool) {
    value, ok := c.data[key]
    return value, ok
}

func (c *Cache) Set(key, value string) {
    c.data[key] = value
}

func (c *Cache) Delete(key string) {
    delete(c.data, key)
}

package main

import (
    "fmt"
    "io"
    "net/http"
)

type Cache struct {
    data map[string]string
}

func NewCache() *Cache {
    return &Cache{
        data: make(map[string]string),
    }
}

func (c *Cache) Get(key string) (string, bool) {
    value, ok := c.data[key]
    return value, ok
}

func (c *Cache) Set(key, value string) {
    c.data[key] = value
}

func (c *Cache) Delete(key string) {
    delete(c.data, key)
}

func main() {
    cache := NewCache()

    http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
        if cacheValue, ok := cache.Get(r.URL.Path); ok {
            io.WriteString(w, cacheValue)
            return
        }

        value := generateResource(r.URL.Path) // 生成资源
        cache.Set(r.URL.Path, value)          // 将资源存入缓存

        io.WriteString(w, value)
    })

    http.ListenAndServe(":8080", nil)
}

func generateResource(path string) string {
    // 根据path生成相应的资源，这里假设资源内容为"Resource: {path}"
    return "Resource: " + path
}