新增Nacos Namespace配置，删除更新至HDFS时Flush操作

src/main/java/com/zdjizhi/source/SingleHttpSource.java

@@ -28,7 +28,7 @@ import java.util.concurrent.Executor;
 
 public class SingleHttpSource extends RichHttpSourceFunction<Map<String, byte[]>> {
 
-    private static final Logger logger = LoggerFactory.getLogger(HttpSource.class);
+    private static final Logger logger = LoggerFactory.getLogger(SingleHttpSource.class);
     private static HashMap<String, byte[]> knowledgeFileCache;
 
     private Properties nacosProperties;