Go URL解析基础教程文档
收录于 2023-04-20 00:10:05 · بالعربية · English · Español · हिंदीName · 日本語 · Русский язык · 中文繁體
Go URL 解析
Go 对 url 解析有很好的支持。 URL 包含方案、身份验证信息、主机、端口、路径、查询参数和查询片段。我们可以解析 URL 并推断出传入服务器的参数是什么,然后相应地处理请求。
net/url 包具有所需的功能,如 Scheme、User、Host、Path、RawQuery 等。
Go URL 解析示例 1
package main import "fmt" import "net" import "net/url" func main() { p := fmt.Println s := "Mysql://admin:password@serverhost.com:8081/server/page1?key=value&key2=value2#X" u, err := url.Parse(s) if err != nil { panic(err) } p(u.Scheme) //prints Schema of the URL p(u.User) // prints the parsed user and password p(u.User.Username()) //prints user's name pass, _ := u.User.Password() p(pass) //prints user password p(u.Host) //prints host and port host, port, _ := net.SplitHostPort(u.Host) //splits host name and port p(host) //prints host p(port) //prints port p(u.Path) //prints the path p(u.Fragment) //prints fragment path value p(u.RawQuery) //prints query param name and value as provided m, _ := url.ParseQuery(u.RawQuery) //parse query param into map p(m) //prints param map p(m["key2"][0]) //prints specific key value }
输出:
mysql admin:password admin password serverhost.com:8081 serverhost.com 8081 /server/page1 X key=value&key2=value2 map[key:[value] key2:[value2]] value2
Go URL 解析示例 2
package main import ( "io" "net/http" ) func main() { http.HandleFunc("/company", func(res http.ResponseWriter, req *http.Request) { displayParameter(res, req) }) println("Enter the url in browser: http://localhost:8080/company?name=Tom&age=27") http.ListenAndServe(":8080", nil) } func displayParameter(res http.ResponseWriter, req *http.Request) { io.WriteString(res, "name: "+req.FormValue("name")) io.WriteString(res, "\nage: "+req.FormValue("age")) }
输出:
在浏览器中输入网址: http://localhost:8080/company ?name=Tom&age=27