go语言 实现 http服务端与客户端 通讯
go语言的net/http包的使用非常的简单优雅
1）服务端
package main
import (
"flag"
"fmt"
"net/http"
)
func main() {
host := flag.String("host", "127.0.0.1", "listen host")
port := flag.String("port", "80", "listen port")
http.HandleFunc("/hello", Hello)
err := http.ListenAndServe(*host+":"+*port, nil)
if err != nil {
panic(err)
}
}
func Hello(w http.ResponseWriter, req *http.Request) {
<p> w.Write([]byte("Hello World"))</p>}
http.HandleFunc用来注册路径处理函数，会根据给定路径的不同，调用不同的函数http.ListenAndSercer监听iP与端口，本机IP可以省略不写，仅书写冒号加端口，如http.ListenAndSercer(“:8080”, nil)路径处理函数，参数必须为w
http.ResponseWriter和 req *http.Request且不能有返回值测试结果：成功
2）客户端
package main
import (
"fmt"
"io/ioutil"
"net/http"
)
func main() {
response, _ := http.Get("http://localhost:80/hello")
defer response.Body.Close()
body, _ := ioutil.ReadAll(response.Body)
fmt.Println(string(body))
}
package main
import (
"fmt"
"io/ioutil"
"net/http"
)
func main() {
response, _ := http.Get("http://localhost:80/hello")
defer response.Body.Close()
body, _ := ioutil.ReadAll(response.Body)
fmt.Println(string(body))
}
测试结果：成功！
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