如何快速把hdfs数据动态导入到hive表

Posted 2020-08-17 疯吻IT

1. hdfs 文件

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{"retCode":1,"retMsg":"Success","data":[{"secID":"000001.XSHE","ticker":"000001","secShortName":"深发展A","exchangeCD":"XSHE","tradeDate":"1991-10-21","preClosePrice":24,"actPreClosePrice":24,"openPrice":24,"highestPrice":24.4,"lowestPrice":23.85,"closePrice":23.9,"turnoverVol":355700,"turnoverValue":8582250,"turnoverRate":0.0058,"accumAdjFactor":0.0117201563,"negMarketValue":1462295257.8,"marketValue":2145064267.7,"PB":2.2666,"isOpen":1},{"secID":"000002.XSHE","ticker":"000002","secShortName":"深万科A","exchangeCD":"XSHE","tradeDate":"1991-10-21","preClosePrice":8,"actPreClosePrice":8,"openPrice":8,"highestPrice":8,"lowestPrice":7.7,"closePrice":7.9,"turnoverVol":375000,"turnoverValue":2944200,"turnoverRate":0.0066,"accumAdjFactor":0.0117337592,"negMarketValue":451011000,"marketValue":615927450,"PB":1.0001,"isOpen":1},{"secID":"000004.XSHE","ticker":"000004","secShortName":"深安达A","exchangeCD":"XSHE","tradeDate":"1991-10-21","preClosePrice":7.25,"actPreClosePrice":7.25,"openPrice":7.25,"highestPrice":7.25,"lowestPrice":7.2,"closePrice":7.2,"turnoverVol":92000,"turnoverValue":665125,"turnoverRate":0.0078,"accumAdjFactor":0.2649084628,"negMarketValue":84977100,"marketValue":175500000,"PB":7.4199,"isOpen":1},{"secID":"000005.XSHE","ticker":"000005","secShortName":"深原野A","exchangeCD":"XSHE","tradeDate":"1991-10-21","preClosePrice":6.46,"actPreClosePrice":6.46,"openPrice":6.49,"highestPrice":6.49,"lowestPrice":6.49,"closePrice":6.49,"turnoverVol":94500,"turnoverValue":613305,"turnoverRate":0.0021,"accumAdjFactor":0.1016459912,"negMarketValue":287756865,"marketValue":584100000,"PB":9.1783,"isOpen":1},{"secID":"000009.XSHE","ticker":"000009","secShortName":"深宝安A","exchangeCD":"XSHE","tradeDate":"1991-10-21","preClosePrice":5.75,"actPreClosePrice":5.75,"openPrice":5.7,"highestPrice":5.8,"lowestPrice":5.65,"closePrice":5.75,"turnoverVol":767500,"turnoverValue":4382245,"turnoverRate":0.0084,"accumAdjFactor":0.1026538759,"negMarketValue":524745000,"marketValue":1293922500,"PB":2.4503,"isOpen":1},{"secID":"600601.XSHG","ticker":"600601","secShortName":"延中实业","exchangeCD":"XSHG","tradeDate":"1991-10-21","preClosePrice":65.7,"actPreClosePrice":65.7,"openPrice":66.4,"highestPrice":66.4,"lowestPrice":66.4,"closePrice":66.4,"turnoverVol":5333,"turnoverValue":354111,"dealAmount":81,"turnoverRate":0.0053,"accumAdjFactor":0.0010592167,"negMarketValue":66400000,"marketValue":66400000,"PB":40.7703,"isOpen":1},{"secID":"600602.XSHG","ticker":"600602","secShortName":"真空电子","exchangeCD":"XSHG","tradeDate":"1991-10-21","preClosePrice":640.6,"actPreClosePrice":640.6,"openPrice":647,"highestPrice":647,"lowestPrice":647,"closePrice":647,"turnoverVol":2589,"turnoverValue":1675083,"dealAmount":227,"turnoverRate":0.0051,"accumAdjFactor":0.0019640692,"negMarketValue":330552300,"marketValue":1294000000,"PB":287.6707,"isOpen":1},{"secID":"600651.XSHG","ticker":"600651","secShortName":"飞乐音响","exchangeCD":"XSHG","tradeDate":"1991-10-21","preClosePrice":119.6,"actPreClosePrice":119.6,"openPrice":120.8,"highestPrice":120.8,"lowestPrice":120.8,"closePrice":120.8,"turnoverVol":1102,"turnoverValue":133122,"dealAmount":14,"turnoverRate":0.0022,"accumAdjFactor":0.0008192464,"negMarketValue":60400000,"marketValue":60400000,"PB":39.6397,"isOpen":1},{"secID":"600652.XSHG","ticker":"600652","secShortName":"爱使电子","exchangeCD":"XSHG","tradeDate":"1991-10-21","preClosePrice":83.2,"actPreClosePrice":83.2,"openPrice":0,"highestPrice":0,"lowestPrice":0,"closePrice":83.2,"turnoverVol":0,"turnoverValue":0,"dealAmount":0,"turnoverRate":0,"accumAdjFactor":0.0006920481,"negMarketValue":22464000,"marketValue":22464000,"PB":33.8019,"isOpen":0},{"secID":"600653.XSHG","ticker":"600653","secShortName":"申华电工","exchangeCD":"XSHG","tradeDate":"1991-10-21","preClosePrice":103.4,"actPreClosePrice":103.4,"openPrice":104.4,"highestPrice":104.4,"lowestPrice":104.4,"closePrice":104.4,"turnoverVol":240,"turnoverValue":25056,"dealAmount":4,"turnoverRate":0.0005,"accumAdjFactor":0.0009289199,"negMarketValue":52200000,"marketValue":52200000,"PB":97.279,"isOpen":1},{"secID":"600654.XSHG","ticker":"600654","secShortName":"飞乐股份","exchangeCD":"XSHG","tradeDate":"1991-10-21","preClosePrice":633.2,"actPreClosePrice":633.2,"openPrice":639.5,"highestPrice":639.5,"lowestPrice":639.5,"closePrice":639.5,"turnoverVol":101,"turnoverValue":64590,"dealAmount":26,"turnoverRate":0.0048,"accumAdjFactor":0.000663586,"negMarketValue":13429500,"marketValue":134358950,"PB":282.9834,"isOpen":1},{"secID":"600656.XSHG","ticker":"600656","secShortName":"浙江凤凰","exchangeCD":"XSHG","tradeDate":"1991-10-21","preClosePrice":1242.9,"actPreClosePrice":1242.9,"openPrice":1255.3,"highestPrice":1255.3,"lowestPrice":1255.3,"closePrice":1255.3,"turnoverVol":140,"turnoverValue":175742,"dealAmount":7,"turnoverRate":0.0031,"accumAdjFactor":0.0007136096,"negMarketValue":56502308.3,"marketValue":321798665.6,"PB":-604.4303,"isOpen":1}]}
 

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2. 创建 hive 临时表

CREATE EXTERNAL TABLE if not exists sensitop.equd_json_tmp (
  retCode string,
  retMsg string,
  data array<struct<
			  secID: string,
			  tradeDate: date,
			  ticker: string,
			  secShortName: string,
			  exchangeCD: string,
			  preClosePrice: double,
			  actPreClosePrice: double,
			  openPrice: double,
			  highestPrice: double,
			  lowestPrice: double,
			  closePrice: double,
			  turnoverVol: double,
			  turnoverValue: double,
			  dealAmount: int,
			  turnoverRate: double,
			  accumAdjFactor: double,
			  negMarketValue: double,
			  marketValue: double,
			  PE: double,
			  PE1: double,
			  PB: double,
			  isOpen: int>>)
ROW FORMAT SERDE ‘org.apache.hive.hcatalog.data.JsonSerDe‘
LOCATION ‘hdfs://hdfs1.wdp:8020/sensitop/finance/equd;

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3. 创建 hive 表

需要把上面表里数组里的数据一条一条放入这个表：

CREATE TABLE if not exists sensitop.equd_h(
                        secID string,
                        ticker string,
                        secShortName string,
                        exchangeCD string,
                        tradeDate date,
                        preClosePrice double,
                        actPreClosePrice double,
                        openPrice double,
                        highestPrice double,
                        lowestPrice double,
                        closePrice double,
                        turnoverVol double,
                        turnoverValue double,
                        dealAmount int,
                        turnoverRate double,
                        accumAdjFactor double,
                        negMarketValue double,
                        marketValue double,
                        PE double,
                        PE1 double,
                        PB double,
                        isOpen int)
partitioned by (year string)
ROW FORMAT SERDE ‘org.apache.hive.hcatalog.data.JsonSerDe‘

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注意：这里的字段顺序和上面临时表的顺序要一致。

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4. 用 Partition 更新数据

insert overwrite table sensitop.equd_h
partition (year=‘2016‘)
select b.dt.secID,
b.dt.ticker,
b.dt.secShortName,
b.dt.exchangeCD,
b.dt.tradeDate,
b.dt.preClosePrice,
b.dt.actPreClosePrice,
b.dt.openPrice,
b.dt.highestPrice,
b.dt.lowestPrice,
b.dt.closePrice,
b.dt.turnoverVol,
b.dt.turnoverValue,
b.dt.dealAmount,
b.dt.turnoverRate,
b.dt.accumAdjFactor,
b.dt.negMarketValue,
b.dt.marketValue,
b.dt.PE,
b.dt.PE1,
b.dt.PB,
b.dt.isOpen
from sensitop.equd_json_tmp LATERAL VIEW explode(equd_json_tmp.data) b AS dt
where dt.tradedate >= ‘2016-01-01‘ and dt.tradedate <= ‘2016-12-31‘;

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5. 用nifi实现动态插入数据

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这里有二个分支，左边一个是每天20：00更新当年的partion； 右边一个是更新1990 到 2015 年的数据，而且只需要更新一次。

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insert overwrite table sensitop.equd_h
partition (year=‘${year}‘)
select b.dt.secID,
b.dt.ticker,
b.dt.secShortName,
b.dt.exchangeCD,
b.dt.tradeDate,
b.dt.preClosePrice,
b.dt.actPreClosePrice,
b.dt.openPrice,
b.dt.highestPrice,
b.dt.lowestPrice,
b.dt.closePrice,
b.dt.turnoverVol,
b.dt.turnoverValue,
b.dt.dealAmount,
b.dt.turnoverRate,
b.dt.accumAdjFactor,
b.dt.negMarketValue,
b.dt.marketValue,
b.dt.PE,
b.dt.PE1,
b.dt.PB,
b.dt.isOpen
from sensitop.equd_json_tmp LATERAL VIEW explode(equd_json_tmp.data) b AS dt
where dt.tradedate >= ‘${year}-01-01‘ and dt.tradedate <= ‘${year}-12-31‘

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