Apply .gitignore rules

.svn/pristine/a6/a6c3a8c4a51bff8dcd3d668f7209549497209512.svn-base

@@ -0,0 +1,60 @@
+package stringUtil
+
+import (
+	"crypto/rand"
+	"encoding/base64"
+	"io"
+	"strings"
+
+	"goutil/securityUtil"
+)
+
+// 获取新的GUID字符串
+// 返回值：
+// 新的GUID字符串
+func GetNewGUID() string {
+	b := make([]byte, 48)
+	if _, err := io.ReadFull(rand.Reader, b); err != nil {
+		return ""
+	}
+
+	return securityUtil.Md5String(base64.URLEncoding.EncodeToString(b), true)
+}
+
+// 生成空的GUID字符串
+// 返回值：
+// 空的GUID字符串
+func GetEmptyGUID() string {
+	return "00000000-0000-0000-0000-000000000000"
+}
+
+// 判断GUID是否为空
+// guid：GUID
+// 返回值：
+// 是否为空
+func IsGUIDEmpty(guid string) bool {
+	if guid == "" || guid == "00000000-0000-0000-0000-000000000000" {
+		return true
+	}
+
+	return false
+}
+
+// 获取新的GUID字符串
+// 返回值：
+// 新的GUID字符串
+func GetNewUUID() string {
+	str := GetNewGUID()
+	var builder strings.Builder
+	builder.WriteString(Substring(str, 0, 8))
+	builder.WriteString("-")
+	builder.WriteString(Substring(str, 8, 4))
+	builder.WriteString("-")
+	builder.WriteString(Substring(str, 12, 4))
+	builder.WriteString("-")
+	builder.WriteString(Substring(str, 16, 4))
+	builder.WriteString("-")
+	builder.WriteString(Substring(str, 20, 12))
+
+	return strings.ToLower(builder.String())
+}