go語言提供了json的編解碼包，json字串作為引數值傳輸時發現，json.Marshal生成json特殊字元<、>、&會被轉義。

type Test struct {
  Content   string
}
func main() {
  t := new(Test)
  t.Content = "http://www.baidu.com?id=123&test=1"
  jsonByte,_ := json.Marshal(t)
  fmt.Println(string(jsonByte))
}

{"Content":"http://www.baidu.com?id=123\u0026test=1"}
Process finished with exit code 0

GoDoc描述

String values encode as JSON strings coerced to valid UTF-8,

replacing invalid bytes with the Unicode replacement rune.

The angle brackets “<” and “>” are escaped to “\u003c” and “\u003e”

to keep some browsers from misinterpreting JSON output as HTML.

Ampersand “&” is also escaped to “\u0026” for the same reason.

This escaping can be disabled using an Encoder that had SetEscapeHTML(false) alled on it.

json.Marshal 預設 escapeHtml 為true,會轉義 <、>、&

func Marshal(v interface{}) ([]byte,error) {
  e := &encodeState{}
  err := e.marshal(v,encOpts{escapeHTML: true})
  if err != nil {
    return nil,err
  }
  return e.Bytes(),nil
}

解決方案

方法一：

content = strings.Replace(content,"\\u003c","<",-1)
content = strings.Replace(content,"\\u003e",">","\\u0026","&",-1)

這種方式比較直接，硬性字串替換。比較憨厚

方法二：

文件中寫到This escaping can be disabled using an Encoder that had SetEscapeHTML(false) alled on it.

我們先建立一個buffer用於儲存json

建立一個jsonencoder

設定html編碼為false

type Test struct {
  Content   string
}
func main() {
  t := new(Test)
  t.Content = "http://www.baidu.com?id=123&test=1"
  bf := bytes.NewBuffer([]byte{})
  jsonEncoder := json.NewEncoder(bf)
  jsonEncoder.SetEscapeHTML(false)
  jsonEncoder.Encode(t)
  fmt.Println(bf.String())
}

{"Content":"http://www.baidu.com?id=123&test=1"}
Process finished with exit code 0

檢視文件和原始碼還是解決問題的好方法。

以上這篇golang json.Marshal 特殊html字元被轉義的解決方法就是小編分享給大家的全部內容了，希望能給大家一個參考，也希望大家多多支援我們。