Spring Integration JDBC 入站适配器

Question

I have to read the rows from database and pass on the rows to service activator
with the help of rowmapper send mails with our own framework which we are able to achieve, The problem is we need to update the respective row's column with dynamic status and errorstackstrace depending success or failure in service activator method.

<int-jdbc:inbound-channel-adapter id="emailReqestChannel"
        query="select * from email_requests where email_request_status = 'NEW'"
        update="update email_requests set email_request_status = 'SUCCESS' where email_request_id in (:email)"
        max-rows-per-poll="10"
        data-source="dataSource" row-mapper="emailRequestRowMapper">
    <int:poller fixed-rate="1000">
        <int:transactional />
    </int:poller>
</int-jdbc:inbound-channel-adapter>
<int:service-activator input-channel="emailReqestChannel" ref="emailRequestMessageHandler" />
<bean id="jdbcMessageHandler"
        class="com.company.selfservice.jdbc.handler.JdbcMessageHandler" />
<bean id="emailRequestMessageHandler"
        class="com.company.selfservice.jdbc.handler.EmailRequestMessageHandler" />
<bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <property name="dataSource" ref="dataSource" />
</bean>
<int:poller default="true" fixed-rate="10000"/>
<int:channel id="dataChannel">
    <int:queue />
</int:channel>
<int:channel id="emailReqestChannel">
    <int:queue />
</int:channel>
<bean id="dataSource"
        class="org.springframework.jdbc.datasource.DriverManagerDataSource">
    <property name="driverClassName" value="org.gjt.mm.mysql.Driver" />
    <property name="url" value="${database.connection_url}" />
    <property name="username" value="${database.user}" />
    <property name="password" value="${database.password}" />
</bean>
<bean id="emailRequestRowMapper"
        class="com.company.selfservice.jdbc.handler.EmailRequestRowMapper" />

Answer 1

如果故事是关于dynamic status and errorstackstrace depending success or failure ，那么您不应该在<int-jdbc:inbound-channel-adapter>使用update ，而应该真正考虑使用<int-jdbc:outpbund-channel-adapter> ，您可以在那里解决针对请求消息的查询参数： https : <int-jdbc:outpbund-channel-adapter> -适配器