Kudu 原理、API使用、代码

以下是Java Kudu API清空Kudu表的示例代码：

```java import org.apache.kudu.client.*; public class KuduClearTable { public static void main(String[] args) throws KuduException { // 定义Kudu表信息 String masterAddr = "kudu.master:7051"; String tableName = "example_table"; KuduClient client = new KuduClient.KuduClientBuilder(masterAddr).build(); KuduTable table = client.openTable(tableName); // 定义Kudu表扫描器，扫描全部数据 KuduScanner scanner = client.newScannerBuilder(table) .build(); // 循环删除全部数据 while (scanner.hasMoreRows()) { RowResultIterator results = scanner.nextRows(); while (results.hasNext()) { RowResult result = results.next(); Delete delete = table.newDelete(); PartialRow row = delete.getRow(); for (ColumnSchema column : table.getSchema().getColumns()) { row.addObject(column.getName(), result.getObject(column.getName())); } client.delete(delete); } } // 关闭Kudu表扫描器和客户端连接 scanner.close(); client.close(); } } ```