程式碼如下（hudi表實時寫入參考上一篇[Hudi-Flink消費kafka將增量資料實時寫入Hudi]）

package com.zhen.hudi;

import org.apache.flink.table.api.EnvironmentSettings;
import org.apache.flink.table.api.TableEnvironment;

/**
 * @Author FengZhen
 * @Date 3/10/22 8:33 PM
 * @Description 基於Flink SQL Connector實現：從hudi表中載入資料，編寫SQL查詢
 */
public
 
 class FlinkSQLReadDemo {

    public static void main(String[] args) {

        //1.獲取表的執行環境
        EnvironmentSettings settings = EnvironmentSettings
                .newInstance()
                .inStreamingMode()
                .build();
        TableEnvironment tableEnv = TableEnvironment.create(settings);

        
 
//2.建立輸入表，TODO:載入hudi表資料
        tableEnv.executeSql(
                "CREATE TABLE order_hudi(\n" +
                        "    `orderId` STRING PRIMARY KEY NOT ENFORCED,\n" +
                        "    `userId` STRING,\n" +
                        "    `orderTime` STRING,\n" +
                        "
 
    `ip` STRING,\n" +
                        "    `orderMoney` DOUBLE,\n" +
                        "    `orderStatus` INT,\n" +
                        "    `ts` STRING,\n" +
                        "    `partition_day` STRING\n" +
                        ")\n" +
                        "PARTITIONED BY (partition_day)\n" +
                        "WITH(\n" +
                        "    'connector' = 'hudi',\n" +
                        "    'path'='hdfs://localhost:9000/hudi-warehouse/flink_hudi_order',\n" +
                        "    'table.type' = 'MERGE_ON_READ',\n" +
                        "    'read.streaming.enabled' = 'true',\n" +
                        "    'read.streaming.check-interval' = '4'\n" +
                        ")"
        );

        //3.執行查詢語句,流式讀取hudi表資料
        tableEnv.executeSql(
                "SELECT orderId, userId, orderTime, ip, orderMoney, orderStatus, ts, partition_day FROM order_hudi"
        ).print();


    }

}