[Feat] flink 1.15 support. (#1010)

* [Feat] flink 1.15 support.

Author: wolfboys

README.md

@@ -125,7 +125,7 @@ respect,Thanks to [Apache Flink](http://flink.apache.org) for creating a great p
 click [Document](http://www.streamxhub.com/zh-CN/docs/intro/) for more information
 
 
-## 💋 out users
+## 💋 our users
 
 
 Various companies and organizations use StreamX for research, production and commercial products. Are you using this project ? [you can add your company](https://github.com/streamxhub/streamx/issues/163)

streamx-common/src/main/scala/com/streamxhub/streamx/common/util/PropertiesUtils.scala

@@ -174,7 +174,7 @@ object PropertiesUtils extends Logger {
       val line = scanner.nextLine()
       lineNo.incrementAndGet()
       // 1. check for comments
-      val comments = line.split("\\s+#", 2)
+      val comments = line.split("#", 2)
       val conf = comments(0).trim
       // 2. get key and value
       if (conf.nonEmpty) {