英文:
http.Request: get file name from url
问题
如何从以下请求中获取文件名one.json：http://localhost/slow/one.json？
我只需要从URL中提供这个文件和其他文件。这是一个我需要以非常慢的速度响应的测试服务器。
http.HandleFunc("/slow/", func(w http.ResponseWriter, r *http.Request) {
log.Println("Slow...")
log.Println(r.URL.Path[1:])
time.Sleep(100 * time.Millisecond)
http.ServeFile(w, r, r.URL.Path[1:])
})
英文:
How do I get only the file name one.json from the following request: http://localhost/slow/one.json?
I just need to serve this file and others from the url? This is a test server that I need to respond very slow.
http.HandleFunc("/slow/", func(w http.ResponseWriter, r *http.Request) {
log.Println("Slow...")
log.Println(r.URL.Path[1:])
time.Sleep(100 * time.Millisecond)
http.ServeFile(w, r, r.URL.Path[1:])
})
答案1
得分: 19
我相信你正在寻找path.Base函数："Base函数返回路径的最后一个元素。"
r, _ := http.NewRequest("GET", "http://localhost/slow/one.json", nil)
fmt.Println(path.Base(r.URL.Path))
// 输出：one.json
英文:
I believe you are looking for path.Base: "Base returns the last element of path."
r,_ := http.NewRequest("GET", "http://localhost/slow/one.json", nil)
fmt.Println(path.Base(r.URL.Path))
// one.json
答案2
得分: -1
创建了两个文件夹 slow 和 fast，然后我使用了以下代码：
package main
import (
"log"
"net/http"
"time"
"fmt"
)
func main() {
h := http.NewServeMux()
h.HandleFunc("/fast/", func(w http.ResponseWriter, r *http.Request) {
fmt.Println(r.URL.Path[1:])
time.Sleep(100 * time.Millisecond)
http.ServeFile(w, r, r.URL.Path[1:])
})
h.HandleFunc("/slow/", func(w http.ResponseWriter, r *http.Request) {
fmt.Println(r.URL.Path[1:])
time.Sleep(6000 * time.Millisecond)
http.ServeFile(w, r, r.URL.Path[1:])
})
h.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(404)
})
err := http.ListenAndServe(":8080", h)
log.Fatal(err)
}
英文:
Created two folders slow and fast and then I ended up using the following:
package main
import (
"log"
"net/http"
"time"
"fmt"
)
func main() {
h := http.NewServeMux()
h.HandleFunc("/fast/", func(w http.ResponseWriter, r *http.Request) {
fmt.Println(r.URL.Path[1:])
time.Sleep(100 * time.Millisecond)
http.ServeFile(w, r, r.URL.Path[1:])
})
h.HandleFunc("/slow/", func(w http.ResponseWriter, r *http.Request) {
fmt.Println(r.URL.Path[1:])
time.Sleep(6000 * time.Millisecond)
http.ServeFile(w, r, r.URL.Path[1:])
})
h.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(404)
})
err := http.ListenAndServe(":8080", h)
log.Fatal(err)
}
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