tips:
这可能是最繁难的web后端开发demo
在goland中创立一个main.go而后依照http包的应用阐明编写代码如下:
package main
import (
"fmt"
"net/http"
)
func sayhello(w http.ResponseWriter, r *http.Request) {
_, _ = fmt.Fprint(w, "<h1>hey this is LIBERHOME!</h1>")
}
func main() {
http.HandleFunc("/hello", sayhello)
err := http.ListenAndServe(":9090", nil) //服务器启动后,监听9090端口
if err != nil {
fmt.Printf("http service failed, err: %v\n", err)
return
}
}
接下来在terminal执行go run main.go
而后在浏览器输出http://127.0.0.1:9090/hello
即可看到
当然,间接把网页显示的内容硬编码能够改成一个txt文件的形式:
首先创立一个hello.txt:
<h1>hey it is LIBERHOME!</h1>
<h2>this may be the most simple demo~</h2>
<img id='i1' src='https://avatar-static.segmentfault.com/274/037/2740371703-61baf9dec42e4_huge256'>
而后之前的代码稍加批改,退出ioutil包:
package main
import (
"fmt"
"io/ioutil"
"net/http"
)
func sayhello(w http.ResponseWriter, r *http.Request) {
b, _ := ioutil.ReadFile("./hello.txt")
_, _ = fmt.Fprint(w, string(b))
}
func main() {
http.HandleFunc("/hello", sayhello)
err := http.ListenAndServe(":9090", nil) //服务器启动后, 监听9090端口
if err != nil {
fmt.Printf("http service failed, err: %v\n", err)
return
}
}
运行后果如下:
参考:bilibili
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