[TOC] ## 語法 ``` type URL struct { Scheme string Opaque string // encoded opaque data User *Userinfo // username and password information Host string // host or host:port Path string // path (relative paths may omit leading slash) RawPath string // encoded path hint (see EscapedPath method) ForceQuery bool // append a query ('?') even if RawQuery is empty RawQuery string // encoded query values, without '?' Fragment string // fragment for references, without '#' } func Parse(rawurl string) (*URL, error) func ParseRequestURI(rawurl string) (*URL, error) func (u *URL) EscapedFragment() string func (u *URL) EscapedPath() string // 轉義路徑,已經轉義的將不轉義 func (u *URL) Hostname() string func (u *URL) IsAbs() bool // 是否是絕對路徑 協議加域名就返回true func (u *URL) MarshalBinary() (text []byte, err error) func (u *URL) Parse(ref string) (*URL, error) // 在原始域名上添加新的參數 func (u *URL) Port() string func (u *URL) Query() Values // 返回 url.Valus func (u *URL) RequestURI() string // 返回 path?query 的部分 func (u *URL) ResolveReference(ref *URL) *URL // 并接兩個url func (u *URL) String() string func (u *URL) UnmarshalBinary(text []byte) error ``` ## url.Values ``` v := url.Values{} v.Set("name", "Ava") v.Add("friend", "Jess") v.Add("friend", "Sarah") v.Add("friend", "Zoe") // v.Encode() == "name=Ava&friend=Jess&friend=Sarah&friend=Zoe" fmt.Println(v.Get("name")) fmt.Println(v.Get("friend")) fmt.Println(v["friend"]) // Output: // Ava // Jess // [Jess Sarah Zoe] ``` ## url.Parse() ``` u, err := url.Parse("http://bing.com/search?q=dotnet") if err != nil { log.Fatal(err) } u.Scheme = "https" u.Host = "google.com" q := u.Query() q.Set("q", "golang") u.RawQuery = q.Encode() fmt.Println(u) // Output: https://google.com/search?q=golang ``` ## PathEscape/ PathUnescape 只轉義path ``` escape := url.PathEscape("/a/b") fmt.Printf("%+v\n", escape) // %2Faasd%2Fasd unescape, _ := url.PathUnescape("%2Faasd%2Fasd") fmt.Printf("%+v\n", unescape) // /aasd/asd ``` ## QueryEscape / QueryUnEscape 轉移完整url