diff --git a/jero-boot/jero-boot-base/jero-boot-base-core/src/main/java/com/jero/common/util/UUIDGenerator.java b/jero-boot/jero-boot-base/jero-boot-base-core/src/main/java/com/jero/common/util/UUIDGenerator.java
index 04efe742..aaf25289 100644
--- a/jero-boot/jero-boot-base/jero-boot-base-core/src/main/java/com/jero/common/util/UUIDGenerator.java
+++ b/jero-boot/jero-boot-base/jero-boot-base-core/src/main/java/com/jero/common/util/UUIDGenerator.java
@@ -4,16 +4,20 @@ package com.jero.common.util;
 import java.net.InetAddress;
 
 /**
- * 
+ *
  * @Author  张代浩
  *
  */
 public class UUIDGenerator {
 
-	
+	private UUIDGenerator(){
+
+	}
+
+
 	/**
 	 * 产生一个32位的UUID
-	 * 
+	 *
 	 * @return
 	 */
 
@@ -21,7 +25,7 @@ public class UUIDGenerator {
 		return new StringBuilder(32).append(format(getIP())).append(
 				format(getJVM())).append(format(getHiTime())).append(
 				format(getLoTime())).append(format(getCount())).toString();
-		
+
 	}
 
 	private static final int IP;
@@ -87,9 +91,8 @@ public class UUIDGenerator {
 	private final static int toInt(byte[] bytes) {
 		int result = 0;
 		for (int i = 0; i < 4; i++) {
-			result = (result << 8) - Byte.MIN_VALUE + (int) bytes[i];
+			result = (result << 8) - (Byte.MIN_VALUE & 0xff)  + bytes[i];
 		}
 		return result;
 	}
-
 }