109 lines
1.8 KiB
Go
109 lines
1.8 KiB
Go
/**
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* @Author: Echo
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* @Email:1711788888@qq.com
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* @Date: 2021/8/31 11:16 下午
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* @Desc: TODO
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*/
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package conv
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import (
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"encoding/json"
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"fmt"
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"reflect"
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"strconv"
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"time"
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)
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type stringInterface interface {
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String() string
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}
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type errorInterface interface {
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Error() string
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}
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func String(any interface{}) string {
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switch v := any.(type) {
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case nil:
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return ""
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case string:
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return v
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case int:
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return strconv.Itoa(v)
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case int8:
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return strconv.Itoa(int(v))
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case int16:
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return strconv.Itoa(int(v))
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case int32:
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return strconv.Itoa(int(v))
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case int64:
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return strconv.FormatInt(v, 10)
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case uint:
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return strconv.FormatUint(uint64(v), 10)
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case uint8:
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return strconv.FormatUint(uint64(v), 10)
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case uint16:
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return strconv.FormatUint(uint64(v), 10)
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case uint64:
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return strconv.FormatUint(v, 10)
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case float32:
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return strconv.FormatFloat(float64(v), 'f', -1, 32)
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case float64:
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return strconv.FormatFloat(v, 'f', -1, 64)
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case bool:
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return strconv.FormatBool(v)
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case []byte:
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return string(v)
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case time.Time:
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return v.String()
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case *time.Time:
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if v == nil {
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return ""
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}
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return v.String()
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default:
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if v == nil {
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return ""
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}
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if i, ok := v.(stringInterface); ok {
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return i.String()
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}
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if i, ok := v.(errorInterface); ok {
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return i.Error()
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}
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var (
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rv = reflect.ValueOf(v)
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kind = rv.Kind()
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)
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switch kind {
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case reflect.Chan,
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reflect.Map,
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reflect.Slice,
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reflect.Func,
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reflect.Ptr,
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reflect.Interface,
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reflect.UnsafePointer:
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if rv.IsNil() {
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return ""
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}
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case reflect.String:
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return rv.String()
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}
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if kind == reflect.Ptr {
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return String(rv.Elem().Interface())
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}
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if b, e := json.Marshal(v); e != nil {
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return fmt.Sprint(v)
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} else {
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return string(b)
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}
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}
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}
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