Java Kudu API清空Kudu表

以下是Java Kudu API清空Kudu表的示例代码：

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();
    }
}

这段代码使用Kudu API打开指定的表，使用扫描器扫描全部数据，并循环删除每条数据。请注意，这段代码会删除表中的全部数据，请谨慎使用。