使用scala将行列表Cassandra表转换为JSON格式

import com.datastax.driver.core.{Cluster, ResultSet, Row}
import org.json.JSONObject

// 连接到Cassandra集群
val cluster = Cluster.builder().addContactPoint("your_cassandra_host").build()
val session = cluster.connect("your_keyspace")

// 执行CQL查询
val resultSet: ResultSet = session.execute("SELECT * FROM your_table")

// 将结果转换为JSON格式
val jsonArray = new JSONArray()
val rows: java.util.List[Row] = resultSet.all()
val iterator = rows.iterator()
while (iterator.hasNext) {
  val row: Row = iterator.next()
  val jsonObject = new JSONObject()
  for (column <- row.getColumnDefinitions.asList()) {
    val columnName = column.getName()
    val columnValue = row.getObject(columnName)
    jsonObject.put(columnName, columnValue)
  }
  jsonArray.put(jsonObject)
}

// 打印JSON结果
println(jsonArray.toString())

// 关闭连接
session.close()
cluster.close()