英文:
Prevent Go's json.Marshal from coercing string to valid UTF-8 unicode?
问题
我正在尝试使用Go将一些JSON数据POST到服务器，其中特殊字符如“&”必须在发送的JSON字符串中保持不变。
Go的json.Marshal会将某些字符转换为Unicode，这是很好的：
字符串值被编码为JSON字符串，强制转换为有效的UTF-8，用Unicode替换无效的字节。角括号“<”和“>”被转义为“\u003c”和“\u003e”，以防止某些浏览器将JSON输出误解为HTML。同样出于这个原因，和号“&”也被转义为“\u0026”。
听起来可能有些荒谬，但我发送的JSON是用于使用RESTful端点执行数据库查询的，其中这个字面字符串将用于执行自由文本数据库查询-因此我不能使用Unicode，因为它会被直接解释。
那么有没有办法阻止这种转换为Unicode？还是我只能在编组完成后撤消这些替换？
谢谢
英文:
I'm trying to POST some JSON to a server using Go where special characters like ampersand must exist intact in the JSON string I'm sending.
http://play.golang.org/p/bPt9kl88-y
package main
import (
"fmt"
"encoding/json"
)
func main() {
type TransactionStatement struct {
Query string
}
statement := &TransactionStatement{
Query: "my query with this & that",
}
data, _ := json.Marshal(statement)
fmt.Printf("> %v", string(data))
}
Go's json.Marshal is converting certain characters like '&' to unicode. Which is great:
> 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.
> Blockquote
It may sound rediculous but the JSON I'm sending is for a database query using a RESTful endpoint, where this literal string will be used to perform a freetext database query - so I can't use unicode since it's interpreted literally.
So is there any way to prevent this conversion to unicode? Or will I just have to undo these replacements after the marshaling is done?
Thanks
答案1
得分: 5
你可以选择不进行编码，如果你愿意的话：
https://golang.org/pkg/encoding/json/#Encoder.SetEscapeHTML
https://play.golang.org/p/gfy1WaDrEIH
英文:
You can choose not to encode if you wish:
https://golang.org/pkg/encoding/json/#Encoder.SetEscapeHTML
答案2
得分: 2
我刚刚意识到，在发布后，其他字符也被编码为Unicode，并且这些字符确实有效。
英文:
I just realized after posting other characters are getting encoded to unicode as well and those are indeed working.
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