Question

Apache camel如何使用SQL组件将映射值插入数据库

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我的类文件：

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  public class PolluxDataController {＆＃xA;＆＃xA;列表与LT; PolluxData＆GT; stationsMasterList = new ArrayList＆lt; PolluxData＆gt;（）;＆＃xA;列表与LT; PolluxData＆GT; stationProccessedList = new ArrayList＆lt; PolluxData＆gt;（）;＆＃xA;地图＆LT;字符串，对象＆gt; stationMap = new HashMap＆lt; String，Object＆gt;（）;＆＃xA;＆＃xA;＆＃xA; @SuppressWarnings（ “未登记”）＆＃XA;公共地图＆lt; String，Object＆gt; processPolluxData（Exchange exchange）抛出异常{＆＃xA;＆＃xA; stationsMasterList =（List＆lt; PolluxData＆gt;）exchange.getIn（）。getBody（）;＆＃xA;＆＃xA; for（PolluxData value：stationsMasterList）{＆＃xA;＆＃xA; System.out.println（value.getStationCode（）+“，”+ value.getStationShortDescription（））; ＆＃XA; stationMap.put（ “ID”，value.getStationCode（））;＆＃XA; stationMap.put（“ltr”，value.getStationShortDescription（））; ＆＃XA;＆＃XA; }＆＃XA;＆＃XA; return stationMap;＆＃xA; }＆＃xA;

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sql.properties文件是：

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  sql.insertNewRecord = INSERT INTO GSI_DEVL.POLLUX_DATA（STID，CLLTR）VALUES（：＃id，＃ltr）＆＃xA;

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Context.xml是

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 ＆lt;！ - 配置要使用的Camel SQL组件JDBC数据源 - ＆gt;＆＃xA; ＆lt; bean id =“sqlComponent”class =“org.apache.camel.component.sql.SqlComponent”＆gt;＆＃xA; ＆lt; property name =“dataSource”ref =“dataSource”/＆gt;＆＃xA; ＆LT; /豆腐＆GT;＆＃XA;＆＃XA; ＆lt; bean name =“polluxDataController”id =“polluxDataController”class =“com.nielsen.polluxloadspring.controller.PolluxDataController”/＆gt;＆＃xA;＆＃xA;＆＃xA; ＆lt; camelContext trace =“false”xmlns =“http://camel.apache.org/schema/spring”＆gt;＆＃xA;＆＃xA; ＆lt;！ - 使用从给定文件加载的Camel属性占位符 - ＆gt;＆＃xA; ＆lt; propertyPlaceholder id =“placeholder”location =“classpath：sql.properties”/＆gt;＆＃xA;＆＃xA; ＆lt; camel：route id =“bindy-csv-marhalling-unmarshalling-exmaple”autoStartup =“true”＆gt;＆＃xA; ＆lt; camel：来自uri =“file：// D：// cameltest //输入？noop = true＆amp; amp; delay = 10”/＆gt;＆＃xA;＆＃xA; ＆lt; camel：log message =“CAMEL BINDY CSV MARSHALLING UNMARSHALLING EXAMPLE”loggingLevel =“WARN”/＆gt;＆＃xA; ＆lt; camel：unmarshal ref =“bindyDataformat”＆gt;＆＃xA; ＆lt; camel：bindy type =“Csv”classType =“com.nielsen.polluxloadspring.model.PolluxData”/＆gt;＆＃xA; ＆LT; /骆驼：解组＆GT;＆＃XA; ＆lt; camel：log message =“Station Details is $ {body}”loggingLevel =“WARN”/＆gt;＆＃xA;＆＃xA; ＆lt; camel：bean ref =“polluxDataController”method =“processPolluxData”/＆gt;＆＃xA;＆＃xA; ＆lt; camel：log message =“bean进程后的站点详细信息$ {body}”loggingLevel =“WARN”/＆gt;＆＃xA;＆＃xA; ＆lt; to uri =“sqlComponent：{{sql.insertNewRecord}}”/＆gt;＆＃xA; ＆lt; log message =“插入新的NewTopic $ {body [id]}”/＆gt;＆＃xA; ＆lt; log message =“插入新的NewTopic $ {body [ltr]}”/＆gt;＆＃xA;＆＃xA; ＆lt; camel：log message =“COMPLETED BINDY SIMPLE CSV EXAMPLE”loggingLevel =“WARN”/＆gt;＆＃xA; ＆LT; /骆驼：路线＆GT;＆＃XA;＆＃XA; ＆LT; / camelContext＆GT; ＆＃xA;

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问题是这只会向数据库插入一行，但该文件包含2000行我怎样才能实现此

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Answer 1

如下所示更改Bean方法

public class PolluxDataController  {

List<PolluxData> stationsMasterList=new ArrayList<PolluxData>();

Map<String,Object> stationMap=null;
List<Map<String,Object>> stationProccessedList=new ArrayList<Map<String,Object>>();

@SuppressWarnings("unchecked")
public List<Map<String,Object>>  processPolluxData(Exchange exchange) throws Exception {

    stationsMasterList= (List<PolluxData>) exchange.getIn().getBody();

    for (PolluxData value:stationsMasterList){

               System.out.println(value.getStationCode() +","+value.getStationShortDescription());  
               stationMap=new HashMap<String,Object>();
               stationMap.put("id",value.getStationCode());
               stationMap.put("ltr", value.getStationShortDescription());                  
               stationProccessedList.add(stationMap);
    }

    return stationProccessedList;
}

}

通过添加参数batch = true来更改sql.properties，默认情况下，这会将列表中的所有内容插入到db not record记录中。如果您想一次只选择并插入两条记录，那么您的业务逻辑就是错误的。

Answer 2

您的地图stationMap将只包含两个条目。在for (PolluxData value:stationsMasterList)中，您始终会为每个PolluxData重置这两个条目。只有一个地图有两个内部 - 只有一个插入，而不是2000.我认为业务逻辑有一些错误（填写地图的算法stationMap）。

Apache camel如何使用sql组件将map值插入数据库

2 个答案: