如下方式运行jar包：

java -Xmx200m -Xms100m -classpath /hadoop/software/apache-flume-1.9.0-bin/project/dataplat-ipva-local.jar   com.winnerinf.dataplat.hdfs.DataCollectionFailover

 报错如下：

Exception in thread "main" org.apache.hadoop.fs.UnsupportedFileSystemException: No FileSystem for scheme "hdfs"
        at org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:3281)
        at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:3301)
        at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:124)
        at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:3352)
        at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:3320)
        at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:479)
        at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:227)
        at com.winnerinf.dataplat.hdfs.S0400DataCollectionFailover.main(S0400DataCollectionFailover.java:121)
 

解决：

在配置文件core-site.xml中添加如下配置信息：

<property>
     <name>fs.hdfs.impl</name>
     <value>org.apache.hadoop.hdfs.DistributedFileSystem</value>
     <description>The FileSystem for hdfs: uris.</description>
</property>