Question

使用MS SQL，当我的查询运行并命中数据库时，我有两个问题：

- 每一行都是单独的消息

- 当我只有~280项要选择

时，查询将无限次地运行

不清楚我需要添加或省略的内容。

由于

<mule xmlns="http://www.mulesoft.org/schema/mule/core" xmlns:file="http://www.mulesoft.org/schema/mule/file" xmlns:jdbc-ee="http://www.mulesoft.org/schema/mule/ee/jdbc" xmlns:doc="http://www.mulesoft.org/schema/mule/documentation" xmlns:spring="http://www.springframework.org/schema/beans" xmlns:core="http://www.mulesoft.org/schema/mule/core" version="EE-3.4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.mulesoft.org/schema/mule/file http://www.mulesoft.org/schema/mule/file/current/mule-file.xsd
http://www.mulesoft.org/schema/mule/ee/jdbc http://www.mulesoft.org/schema/mule/ee/jdbc/current/mule-jdbc-ee.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-current.xsd
http://www.mulesoft.org/schema/mule/core http://www.mulesoft.org/schema/mule/core/current/mule.xsd">
    <jdbc-ee:mssql-data-source name="Dev_MS_SQL_Data_Source" user="XX" password="XXXXX" url="jdbc:sqlserver://SQLDEV;databaseName=theData" transactionIsolation="UNSPECIFIED" doc:name="MS SQL Data Source"/>
    <jdbc-ee:connector name="Database" dataSource-ref="Dev_MS_SQL_Data_Source" transactionPerMessage="false" validateConnections="true" queryTimeout="-1" pollingFrequency="100000" doc:name="Database"/>
    <file:connector name="Ref_File_Out" autoDelete="false" outputAppend="true" streaming="true" validateConnections="true" doc:name="File"/>
    <flow name="SimpleProjFlow1" doc:name="SimpleProjFlow1">
        <jdbc-ee:inbound-endpoint queryKey="Test__query" queryTimeout="-1" pollingFrequency="1000" connector-ref="Database" doc:name="Database">
            <jdbc-ee:query key="Test__query" value="select ROW_ID, ORDER_NO2, ORDER_NO4 from ShipConfirm"/>
            <!--jdbc-ee:transaction action="ALWAYS_BEGIN"/-->
        </jdbc-ee:inbound-endpoint>
        <byte-array-to-string-transformer doc:name="Byte Array to String"/>
        <logger message="Message = #[message:payload]" level="INFO" doc:name="Logger"/>
        <file:outbound-endpoint path="\\blat\Dummy" outputPattern="SimpleDBTest__#[function:datestamp:dd-MM-yyyy_HHmm].dat" responseTimeout="10000" connector-ref="Ref_File_Out" doc:name="File"/>
    </flow>
</mule>

Answer 1

您需要将ack查询与选择的查询相关联，以便Mule可以标记已处理的记录，例如通过将标记设置为true，同时确保选择查询仅选择记录带有false的旗帜。请参阅：http://www.mulesoft.org/documentation/display/current/JDBC+Transport+Reference#JDBCTransportReference-Acknowledgment

要接收单条消息中的所有记录，请处理入站端点并将transactionPerMessage设置为true。

JDBC-EE查询 - 每行都是一条消息，它反复运行

1 个答案: