func checkJson(input string){
if ... input is in json ... {
fmt.Println("it's json!")
} else {
fmt.Println("it's normal string!")
}
}
我也在这里发布了交互式代码示例：http://play.golang.org/p/VmT0BVBJZ7
package main
import (
"encoding/json"
"fmt"
)
func isJSONString(s string) bool {
var js string
return json.Unmarshal([]byte(s),&js) == nil
}
func isJSON(s string) bool {
var js map[string]interface{}
return json.Unmarshal([]byte(s),&js) == nil
}
func main() {
var tests = []string{
`"Platypus"`,`Platypus`,`{"id":"1"}`,}
for _,t := range tests {
fmt.Printf("isJSONString(%s) = %v\n",t,isJSONString(t))
fmt.Printf("isJSON(%s) = %v\n\n",isJSON(t))
}
}
哪个会输出：
isJSONString("Platypus") = true
isJSON("Platypus") = false
isJSONString(Platypus) = false
isJSON(Platypus) = false
isJSONString({"id":"1"}) = false
isJSON({"id":"1"}) = true
