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2025-01-19 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Database >
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Editor to share with you how to achieve HBase-based reports, I believe that most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to understand it!
Many complex report projects are implemented with the help of report tools (or plug-ins). Here is an example of jasperReport. These reporting tools can support traditional data sources (relational database, collections, java Bean Array) very well.
Although the data structure of HBase is different from that of relational databases, HBase itself is developed by java. There is a special java API to implement the operation of HBase, including query, of course. The following is a query code of java to HBase:
HTable table=new HTable (hbaseConfig,tablename)
Get g = new Get (Bytes.toBytes (rowKey))
Result r=table.get (g)
For (KeyValue kv:r.raw ()) {
System.out.println ("column:" + new String (kv.getColumn ()
System.out.println ("value:" + new String (kv.getValue ()
}
Through the above query code, we can find that the query results of HBase are stored in java Bean Array&collections. Therefore, through certain processing, the report based on HBase can be realized.
The following is my personal simple design idea:
The above is all the contents of the article "how to implement HBase-based reports". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!
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