120 lines
2.5 KiB
Go
120 lines
2.5 KiB
Go
package common
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import (
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"reflect"
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"github.com/gogf/gf/v2/encoding/gjson"
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)
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// CleanJSON 清理JSON字符串中的空值和0值字段
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func CleanJSON(jsonStr string) ([]byte, error) {
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var data interface{}
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// 解析JSON字符串
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if err := gjson.Unmarshal([]byte(jsonStr), &data); err != nil {
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return nil, err
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}
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// 递归清理数据
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cleaned := cleanData(data)
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// 转换回JSON字符串
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result, err := gjson.Marshal(cleaned)
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if err != nil {
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return nil, err
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}
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return result, nil
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}
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// cleanData 递归清理map或slice中的空值和0值
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func cleanData(data interface{}) interface{} {
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if data == nil {
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return nil
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}
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v := reflect.ValueOf(data)
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switch v.Kind() {
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case reflect.Map:
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cleanedMap := make(map[string]interface{})
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for _, key := range v.MapKeys() {
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val := v.MapIndex(key)
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if val.Interface() != nil && !isEmptyValue(val) {
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cleanedVal := cleanData(val.Interface())
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// 只有清理后的值不为空才添加
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if !isCleanedValueEmpty(cleanedVal) {
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cleanedMap[key.String()] = cleanedVal
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}
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}
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}
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return cleanedMap
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case reflect.Slice:
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cleanedSlice := make([]interface{}, 0)
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for i := 0; i < v.Len(); i++ {
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item := v.Index(i)
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if item.Interface() != nil && !isEmptyValue(item) {
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cleanedItem := cleanData(item.Interface())
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if !isCleanedValueEmpty(cleanedItem) {
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cleanedSlice = append(cleanedSlice, cleanedItem)
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}
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}
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}
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// 如果slice为空，则返回nil而不是空slice
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if len(cleanedSlice) == 0 {
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return nil
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}
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return cleanedSlice
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default:
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return data
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}
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}
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// isEmptyValue 检查值是否为空值或0值
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func isEmptyValue(v reflect.Value) bool {
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switch v.Kind() {
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case reflect.Interface, reflect.Ptr:
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return v.IsNil()
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case reflect.Slice, reflect.Map:
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return v.Len() == 0
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case reflect.String:
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return v.String() == "" || v.String() == "0"
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case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
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return v.Int() == 0
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case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
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return v.Uint() == 0
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case reflect.Float32, reflect.Float64:
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return v.Float() == 0
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case reflect.Bool:
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return !v.Bool()
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}
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// 特殊处理nil值
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if !v.IsValid() {
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return true
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}
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return false
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}
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// isCleanedValueEmpty 检查清理后的值是否为空
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func isCleanedValueEmpty(val interface{}) bool {
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if val == nil {
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return true
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}
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v := reflect.ValueOf(val)
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switch v.Kind() {
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case reflect.Map:
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return v.Len() == 0
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case reflect.Slice:
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return v.Len() == 0
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case reflect.String:
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return val == ""
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}
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return false
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}
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