修改traceId长度

framework-boot/src/main/java/com/mrxu/framework/boot/entity/RpcRequestInfo.java

@@ -56,7 +56,7 @@ public class RpcRequestInfo implements Serializable {
 
     public void setTrackId(String trackId) {
         get().trackId = trackId;
-        MDC.put("trackId",trackId+",");
+        MDC.put("trackId",trackId);
     }
 
     public void setIp(String ip) {

framework-common/src/main/java/com/mrxu/framework/common/util/StrFunc.java

@@ -112,8 +112,7 @@ public class StrFunc {
 
     public static void main(String[] args) {
         try{
-            String a = null;
-            a.equals("");
+            System.out.println(randomNumber(12));
         }
         catch (Exception e) {
             System.out.println(getExceptionStr(e));