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55 lines
992 B
Go
55 lines
992 B
Go
// Copyright 2019, Chef. All rights reserved.
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// https://github.com/q191201771/naza
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//
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// Use of this source code is governed by a MIT-style license
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// that can be found in the License file.
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//
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// Author: Chef (191201771@qq.com)
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package nazajson
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import (
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"encoding/json"
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"strings"
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)
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type JSON struct {
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//raw []byte
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m map[string]interface{}
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}
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func New(raw []byte) (JSON, error) {
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var j JSON
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err := j.Init(raw)
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return j, err
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}
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func (j *JSON) Init(raw []byte) error {
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return json.Unmarshal(raw, &j.m)
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}
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// 判断 json 中某个字段是否存在
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// @param path 支持多级格式，用句号`.`分隔，比如 log.level
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func (j *JSON) Exist(path string) bool {
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return exist(j.m, path)
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}
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func exist(m map[string]interface{}, path string) bool {
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ps := strings.Split(path, ".")
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if len(ps) > 1 {
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v, ok := m[ps[0]]
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if !ok {
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return false
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}
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mm, ok := v.(map[string]interface{})
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if !ok {
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return false
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}
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return exist(mm, ps[1])
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}
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_, ok := m[ps[0]]
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return ok
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}
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