go语言提供了json的编解码包,json字符串作为参数值传输时发现,json.Marshal生成json特殊字符、&会被转义。

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 “” 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 默认 escapeHtml 为true,会转义 、&

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

}

解决方案

方法一:

content = strings.Replace(content, "\\u003c", "

content = strings.Replace(content, "\\u003e", ">", -1)

content = strings.Replace(content, "\\u0026", "&", -1)

这种方式比较直接,硬性字符串替换。比较憨厚

方法二:

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

我们先创建一个buffer用于存储json

创建一个jsonencoder

设置html编码为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

查看文档和源码还是解决问题的好方法。

以上这篇golang json.Marshal 特殊html字符被转义的解决方法就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持脚本之家。