增加位数减少hash碰撞

src/main/scala/com/winhc/bigdata/spark/utils/BaseUtil.scala

@@ -120,7 +120,7 @@ object BaseUtil {
     var hash: Long = 0
     for (i <- 0 to str.length - 1) {
       hash = hash * seed + str.charAt(i)
-      hash = hash & 0x7FFFFFFF
+      hash = hash & 0x7FFFFFFFFFFFFFFFL
     }
     return hash
   }