1.优化uuid公共模块

2.程序启动错误检测

util/uuid/uuid.go

@@ -11,7 +11,7 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
-package util
+package uuid
 
 import (
 	crand "crypto/rand"
@@ -44,6 +44,16 @@ func (this UUID) Hex() string {
 
 }
 
+func (this UUID) HexEx() string {
+	x := [16]byte(this)
+	return fmt.Sprintf("%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
+		x[0], x[1], x[2], x[3], x[4],
+		x[5], x[6],
+		x[7], x[8],
+		x[9], x[10], x[11], x[12], x[13], x[14], x[15])
+
+}
+
 // Rand generates a new version 4 UUID.
 func Rand() UUID {
 	var x [16]byte