第一步版

src/main/java/org/traceability/contant/CommonConstant.java

@@ -0,0 +1,18 @@
+package org.traceability.contant;
+
+/**
+ * 通用常量
+ */
+public interface CommonConstant {
+
+    /**
+     * 升序
+     */
+    String SORT_ORDER_ASC = "ascend";
+
+    /**
+     * 降序
+     */
+    String SORT_ORDER_DESC = " descend";
+    
+}