✨ 初始化项目

internal/conv/conv.go

@@ -0,0 +1,108 @@
+/**
+ * @Author: Echo
+ * @Email:1711788888@qq.com
+ * @Date: 2021/8/31 11:16 下午
+ * @Desc: TODO
+ */
+
+package conv
+
+import (
+	"encoding/json"
+	"fmt"
+	"reflect"
+	"strconv"
+	"time"
+)
+
+type stringInterface interface {
+	String() string
+}
+
+type errorInterface interface {
+	Error() string
+}
+
+func String(any interface{}) string {
+	switch v := any.(type) {
+	case nil:
+		return ""
+	case string:
+		return v
+	case int:
+		return strconv.Itoa(v)
+	case int8:
+		return strconv.Itoa(int(v))
+	case int16:
+		return strconv.Itoa(int(v))
+	case int32:
+		return strconv.Itoa(int(v))
+	case int64:
+		return strconv.FormatInt(v, 10)
+	case uint:
+		return strconv.FormatUint(uint64(v), 10)
+	case uint8:
+		return strconv.FormatUint(uint64(v), 10)
+	case uint16:
+		return strconv.FormatUint(uint64(v), 10)
+	case uint64:
+		return strconv.FormatUint(v, 10)
+	case float32:
+		return strconv.FormatFloat(float64(v), 'f', -1, 32)
+	case float64:
+		return strconv.FormatFloat(v, 'f', -1, 64)
+	case bool:
+		return strconv.FormatBool(v)
+	case []byte:
+		return string(v)
+	case time.Time:
+		return v.String()
+	case *time.Time:
+		if v == nil {
+			return ""
+		}
+		return v.String()
+	default:
+		if v == nil {
+			return ""
+		}
+
+		if i, ok := v.(stringInterface); ok {
+			return i.String()
+		}
+
+		if i, ok := v.(errorInterface); ok {
+			return i.Error()
+		}
+
+		var (
+			rv   = reflect.ValueOf(v)
+			kind = rv.Kind()
+		)
+
+		switch kind {
+		case reflect.Chan,
+			reflect.Map,
+			reflect.Slice,
+			reflect.Func,
+			reflect.Ptr,
+			reflect.Interface,
+			reflect.UnsafePointer:
+			if rv.IsNil() {
+				return ""
+			}
+		case reflect.String:
+			return rv.String()
+		}
+
+		if kind == reflect.Ptr {
+			return String(rv.Elem().Interface())
+		}
+
+		if b, e := json.Marshal(v); e != nil {
+			return fmt.Sprint(v)
+		} else {
+			return string(b)
+		}
+	}
+}