分享一个 Golang 对 URL 的 Query 操作的坑

package main

import (
	"fmt"
	"net/url"
)

func main() {	
	    str := "tcp://1.1.1.1:111?ibefore=fflags*+gen"
	u,err := url.Parse(str)
	if err!=nil {
		fmt.Println(err.Error())
		return
	}
	fmt.Println(u.RawQuery) //原始
	
	q := u.Query()
	fmt.Println("ibefore=",q.Get("ibefore")) //??
	fmt.Println("ibefore=",url.QueryEscape(q.Get("ibefore"))) //Escape
	
	
	u.RawQuery = q.Encode()
	dstr, err :=  url.PathUnescape(u.String())
	if err!=nil {
		fmt.Println(err.Error())
		return
	}
	fmt.Println(dstr) 
	
	
	m:=make(url.Values)
	m["1"]= []string{"+12"}
	fmt.Println(m["1"]) //Values本身支持
}

}
​

输出:

ibefore=fflags*+gen
ibefore= fflags* gen
ibefore= fflags%2A+gen
tcp://1.1.1.1:111?ibefore=fflags*+gen
[+12] 
​

发现问题没~~~