diff --git a/axzo-common-rocketmq/src/main/java/cn/axzo/framework/rocketmq/utils/TraceUtils.java b/axzo-common-rocketmq/src/main/java/cn/axzo/framework/rocketmq/utils/TraceUtils.java
index 8ce718b..86b7c5e 100644
--- a/axzo-common-rocketmq/src/main/java/cn/axzo/framework/rocketmq/utils/TraceUtils.java
+++ b/axzo-common-rocketmq/src/main/java/cn/axzo/framework/rocketmq/utils/TraceUtils.java
@@ -4,6 +4,8 @@ import com.google.common.base.Strings;
 import lombok.experimental.UtilityClass;
 import org.slf4j.MDC;
 
+import java.util.UUID;
+
 /**
  * @author haiyangjin
  * @date 2023/7/23
@@ -14,13 +16,12 @@ public class TraceUtils {
     /**
      * 多设置一个key = TraceId, value为traceId的变量到MDC. 以兼容目前的logback-spring.xml的配置
      */
-    public static final String TRACE_ID_IN_MDC = "TraceId";
+    public static final String TRACE_ID_IN_MDC = "traceId";
 
     public String getOrCreateTraceId() {
-        String res = MDC.get(TRACE_ID);
+        String res = MDC.get(TRACE_ID_IN_MDC);
         if (Strings.isNullOrEmpty(res)) {
-//            TODO uuid
-//            res = UUIDBuilder.generateShortUuid();
+            res = UUIDBuilder.generateShortUuid();
             MDC.put(TRACE_ID, res);
             MDC.put(TRACE_ID_IN_MDC, res);
         }
diff --git a/axzo-common-rocketmq/src/main/java/cn/axzo/framework/rocketmq/utils/UUIDBuilder.java b/axzo-common-rocketmq/src/main/java/cn/axzo/framework/rocketmq/utils/UUIDBuilder.java
new file mode 100644
index 0000000..9260398
--- /dev/null
+++ b/axzo-common-rocketmq/src/main/java/cn/axzo/framework/rocketmq/utils/UUIDBuilder.java
@@ -0,0 +1,56 @@
+package cn.axzo.framework.rocketmq.utils;
+
+import java.util.Random;
+import java.util.UUID;
+
+/**
+ * @author haiyangjin
+ * @date 2023/9/1
+ */
+public class UUIDBuilder {
+    private static final String SPLITOR = "-";
+    private static final String BLANK = "";
+
+    public static String BASE_STRING = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+
+    public static String[] BASE_CHARS = new String[] {"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m",
+            "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "0", "1", "2", "3", "4", "5", "6", "7",
+            "8", "9", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S",
+            "T", "U", "V", "W", "X", "Y", "Z"};
+
+    // UUID 32
+    public static String generateLongUuid() {
+        return generateLongUuid(true);
+    }
+
+    // UUID 32
+    public static String generateLongUuid(boolean isUpperCase) {
+        String uuid = UUID.randomUUID().toString().replace(SPLITOR, BLANK);
+        if (isUpperCase) {
+            return uuid.toUpperCase();
+        }
+        return uuid.toLowerCase();
+    }
+
+    // UUID 8
+    public static String generateShortUuid() {
+        StringBuilder shortBuffer = new StringBuilder(8);
+        String uuid = UUID.randomUUID().toString().replace(SPLITOR, BLANK);
+        for (int i = 0; i < 8; i++) {
+            String str = uuid.substring(i * 4, i * 4 + 4);
+            int x = Integer.parseInt(str, 16);
+            shortBuffer.append(BASE_CHARS[x % 0x3E]);
+        }
+        return shortBuffer.toString();
+    }
+
+    public static String getRandomString(int length) {
+        Random random = new Random();
+        StringBuilder sb = new StringBuilder(length);
+        for (int i = 0; i < length; i++) {
+            int number = random.nextInt(BASE_STRING.length());
+            sb.append(BASE_STRING.charAt(number));
+        }
+        return sb.toString();
+    }
+}