Scala帮我把ArrayBuffer[Bean]写入到hbase数据库,Bean(id:string,name:String)不转换df
时间: 2024-10-15 11:22:46 浏览: 30
在Scala中,将`ArrayBuffer[Bean]`数据写入HBase通常需要通过HBase的Java API或者Scala提供的HBase库,如scala-hbase或者Hadoop HBase Client。这里我们将展示一种基本的步骤:
首先,确保你有适当的依赖项,例如如果你使用的是Apache HBase的Scala客户端,那么你需要添加`com.hortonworks:hbase-client`到你的项目依赖。
```scala
import org.apache.hadoop.hbase.client.{Connection, ConnectionFactory, Put}
import scala.collection.JavaConverters._
// 假设你已经有了一个ArrayBuffer[Bean]叫data
val data: ArrayBuffer[Bean] = ...
// 创建HBase连接
val connection: Connection = ConnectionFactory.createConnection()
try {
// 获取表操作对象,假设表名为"your_table_name"
val table: Table = connection.getTable(Bytes.toBytes("your_table_name"))
// 遍历ArrayBuffer并写入HBase
data.foreach { bean =>
val put: Put = new Put(Bytes.toBytes(bean.id)) // 使用id作为行键
put.add(Bytes.toBytes("name"), Bytes.toBytes("name"), Bytes.toBytes(bean.name))
table.put(put)
}
// 提交事务
table.flushCommits()
} finally {
connection.close() // 关闭连接
}
```
阅读全文
相关推荐
![pdf](https://img-home.csdnimg.cn/images/20241231044930.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![docx](https://img-home.csdnimg.cn/images/20241231044901.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![rar](https://img-home.csdnimg.cn/images/20241231044955.png)