douzhantanju1849 2019-03-14 16:24
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如何在Fprintf输出中添加正文标题?

I'm trying to add <title>Go</title> to my code example:

package main

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

func favicon(w http.ResponseWriter, r *http.Request) {
    http.ServeFile(w, r, "favicon.ico")
}

func sayhelloName(w http.ResponseWriter, r *http.Request) {
    hostname, _ := os.Hostname()
    fmt.Fprintf(w, "

System info:
Hostname [pod name]: %s", hostname)
    fmt.Fprintf(w, "
Current URL: %s
", r.Host)
}

func main() {
    http.HandleFunc("/favicon.ico", favicon)
    http.HandleFunc("/", sayhelloName)
    http.ListenAndServe(":80", nil)
}

I tried to add like: fmt.Fprintf(w, "<title>Go</title>"). It works but make mess with strings next to. I wouldn't like to use html template only to add title to page. Is there any ways to add title in one string?

  • 写回答

1条回答 默认 最新

  • dongzhuang6417 2019-03-15 00:53
    关注

    not used html template. just used only fmt.Fprintf.

    package main
    
    import (
        "fmt"
        "log"
        "net/http"
        "os"
    )
    
    func favicon(w http.ResponseWriter, r *http.Request) {
        http.ServeFile(w, r, "favicon.ico")
    }
    
    func sayhelloName(w http.ResponseWriter, r *http.Request) {
        hostname, _ := os.Hostname()
    
        fmt.Fprintf(w, "<html>")
        fmt.Fprintf(w, "<head>")
        fmt.Fprintf(w, "<title>%s</title>", "Go")
        fmt.Fprintf(w, "</head>")
        fmt.Fprintf(w, "<body>")
        fmt.Fprintf(w, "<h1>System info: Hostname [pod name]: %s", hostname)
        fmt.Fprintf(w, "<h1>Current URL: %s", r.Host)
        fmt.Fprintf(w, "</body>")
        fmt.Fprintf(w, "</html>")
    }
    
    func main() {
        http.HandleFunc("/favicon.ico", favicon)
        http.HandleFunc("/", sayhelloName)
    
        log.Fatal(http.ListenAndServe(":8080", nil))
    }
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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