Spring集成：使用RowMapper时入站通道适配器更新查询参数异常_Spring_Spring Integration

Spring集成：使用RowMapper时入站通道适配器更新查询参数异常

spring spring-integration

Spring集成：使用RowMapper时入站通道适配器更新查询参数异常,spring,spring-integration,Spring,Spring Integration,我的目标是从表中读取行，并将它们作为消息放到通道中，然后更新表。我正在使用RowMapper将结果集转换为对象列表（list） <si:channel id="output"> <si:queue capacity="50" /> <si:interceptors> <si:wire-tap channel="logger"/> </si:interceptors> </si:channel> <

我的目标是从表中读取行，并将它们作为消息放到通道中，然后更新表。我正在使用RowMapper将结果集转换为对象列表（list）

<si:channel id="output">
    <si:queue capacity="50" />
<si:interceptors>
     <si:wire-tap channel="logger"/>
 </si:interceptors>
</si:channel>
<si-jdbc:inbound-channel-adapter channel="input" data-source="myDataSource" auto-startup="true" query="SELECT * FROM STATUS_TABLE WHERE MESSAGE_STATUS ='WAITING'"
                                 update="UPDATE STATUS_TABLE SET MESSAGE_STATUS='IN_PROGRESS' WHERE STATUS_TABLE_ID IN (:payload[Status.id])"  max-rows-per-poll="20"  row-mapper="rowMapper" update-per-row="true">
    <si:poller fixed-rate="60000">
        <si:transactional/>
    </si:poller>
</si-jdbc:inbound-channel-adapter>

<bean id="rowMapper" class="com.test.StatusMapper"></bean>

这里是我的问题：更新查询参数应该是什么：状态表ID在（：payload[STATUS.ID]）中，因为有效负载将是列表并用于查询状态。ID是正确的语法吗

<si:channel id="output">
    <si:queue capacity="50" />
<si:interceptors>
     <si:wire-tap channel="logger"/>
 </si:interceptors>
</si:channel>
<si-jdbc:inbound-channel-adapter channel="input" data-source="myDataSource" auto-startup="true" query="SELECT * FROM STATUS_TABLE WHERE MESSAGE_STATUS ='WAITING'"
                                 update="UPDATE STATUS_TABLE SET MESSAGE_STATUS='IN_PROGRESS' WHERE STATUS_TABLE_ID IN (:payload[Status.id])"  max-rows-per-poll="20"  row-mapper="rowMapper" update-per-row="true">
    <si:poller fixed-rate="60000">
        <si:transactional/>
    </si:poller>
</si-jdbc:inbound-channel-adapter>

<bean id="rowMapper" class="com.test.StatusMapper"></bean>

我的配置：

<si:channel id="output">
    <si:queue capacity="50" />
<si:interceptors>
     <si:wire-tap channel="logger"/>
 </si:interceptors>
</si:channel>
<si-jdbc:inbound-channel-adapter channel="input" data-source="myDataSource" auto-startup="true" query="SELECT * FROM STATUS_TABLE WHERE MESSAGE_STATUS ='WAITING'"
                                 update="UPDATE STATUS_TABLE SET MESSAGE_STATUS='IN_PROGRESS' WHERE STATUS_TABLE_ID IN (:payload[Status.id])"  max-rows-per-poll="20"  row-mapper="rowMapper" update-per-row="true">
    <si:poller fixed-rate="60000">
        <si:transactional/>
    </si:poller>
</si-jdbc:inbound-channel-adapter>

<bean id="rowMapper" class="com.test.StatusMapper"></bean>

我的RowMapper类：

<si:channel id="output">
    <si:queue capacity="50" />
<si:interceptors>
     <si:wire-tap channel="logger"/>
 </si:interceptors>
</si:channel>
<si-jdbc:inbound-channel-adapter channel="input" data-source="myDataSource" auto-startup="true" query="SELECT * FROM STATUS_TABLE WHERE MESSAGE_STATUS ='WAITING'"
                                 update="UPDATE STATUS_TABLE SET MESSAGE_STATUS='IN_PROGRESS' WHERE STATUS_TABLE_ID IN (:payload[Status.id])"  max-rows-per-poll="20"  row-mapper="rowMapper" update-per-row="true">
    <si:poller fixed-rate="60000">
        <si:transactional/>
    </si:poller>
</si-jdbc:inbound-channel-adapter>

<bean id="rowMapper" class="com.test.StatusMapper"></bean>

public class StatusMapper implements RowMapper<Status>{

@Override
public Status mapRow(ResultSet rs, int rowNum)throws SQLException {

    Status status = new Status();       
    status.setMessageContent(rs.getString("MESSAGE_CONTENT"));      
    status.setId(rs.getLong("STATUS_ID"));      
    return status;
}

公共类StatusMapper实现行映射器{
@凌驾
公共状态映射行（ResultSet rs，int rowNum）引发SQLException{
状态=新状态（）；
status.setMessageContent（rs.getString（“消息内容”）；
status.setId（rs.getLong（“status_ID”）；
返回状态；
}

如果有人能给我指出正确的方向，那就太好了。

假设

Status

有一个方法

getId（）

，您只需使用

：id

<si:channel id="output">
    <si:queue capacity="50" />
<si:interceptors>
     <si:wire-tap channel="logger"/>
 </si:interceptors>
</si:channel>
<si-jdbc:inbound-channel-adapter channel="input" data-source="myDataSource" auto-startup="true" query="SELECT * FROM STATUS_TABLE WHERE MESSAGE_STATUS ='WAITING'"
                                 update="UPDATE STATUS_TABLE SET MESSAGE_STATUS='IN_PROGRESS' WHERE STATUS_TABLE_ID IN (:payload[Status.id])"  max-rows-per-poll="20"  row-mapper="rowMapper" update-per-row="true">
    <si:poller fixed-rate="60000">
        <si:transactional/>
    </si:poller>
</si-jdbc:inbound-channel-adapter>

<bean id="rowMapper" class="com.test.StatusMapper"></bean>

更新查询在查询返回的对象集合上使用投影

<si:channel id="output">
    <si:queue capacity="50" />
<si:interceptors>
     <si:wire-tap channel="logger"/>
 </si:interceptors>
</si:channel>
<si-jdbc:inbound-channel-adapter channel="input" data-source="myDataSource" auto-startup="true" query="SELECT * FROM STATUS_TABLE WHERE MESSAGE_STATUS ='WAITING'"
                                 update="UPDATE STATUS_TABLE SET MESSAGE_STATUS='IN_PROGRESS' WHERE STATUS_TABLE_ID IN (:payload[Status.id])"  max-rows-per-poll="20"  row-mapper="rowMapper" update-per-row="true">
    <si:poller fixed-rate="60000">
        <si:transactional/>
    </si:poller>
</si-jdbc:inbound-channel-adapter>

<bean id="rowMapper" class="com.test.StatusMapper"></bean>

expression=“#root.！[“+expression+”]”；

<si:channel id="output">
    <si:queue capacity="50" />
<si:interceptors>
     <si:wire-tap channel="logger"/>
 </si:interceptors>
</si:channel>
<si-jdbc:inbound-channel-adapter channel="input" data-source="myDataSource" auto-startup="true" query="SELECT * FROM STATUS_TABLE WHERE MESSAGE_STATUS ='WAITING'"
                                 update="UPDATE STATUS_TABLE SET MESSAGE_STATUS='IN_PROGRESS' WHERE STATUS_TABLE_ID IN (:payload[Status.id])"  max-rows-per-poll="20"  row-mapper="rowMapper" update-per-row="true">
    <si:poller fixed-rate="60000">
        <si:transactional/>
    </si:poller>
</si-jdbc:inbound-channel-adapter>

<bean id="rowMapper" class="com.test.StatusMapper"></bean>

这在此处的第二个

注释中进行了描述
<si:channel id="output">
    <si:queue capacity="50" />
<si:interceptors>
     <si:wire-tap channel="logger"/>
 </si:interceptors>
</si:channel>
<si-jdbc:inbound-channel-adapter channel="input" data-source="myDataSource" auto-startup="true" query="SELECT * FROM STATUS_TABLE WHERE MESSAGE_STATUS ='WAITING'"
                                 update="UPDATE STATUS_TABLE SET MESSAGE_STATUS='IN_PROGRESS' WHERE STATUS_TABLE_ID IN (:payload[Status.id])"  max-rows-per-poll="20"  row-mapper="rowMapper" update-per-row="true">
    <si:poller fixed-rate="60000">
        <si:transactional/>
    </si:poller>
</si-jdbc:inbound-channel-adapter>

<bean id="rowMapper" class="com.test.StatusMapper"></bean>

这里描述了集合投影
假设状态
有一个方法getId（）
，您只需使用：id

<si:channel id="output">
    <si:queue capacity="50" />
<si:interceptors>
     <si:wire-tap channel="logger"/>
 </si:interceptors>
</si:channel>
<si-jdbc:inbound-channel-adapter channel="input" data-source="myDataSource" auto-startup="true" query="SELECT * FROM STATUS_TABLE WHERE MESSAGE_STATUS ='WAITING'"
                                 update="UPDATE STATUS_TABLE SET MESSAGE_STATUS='IN_PROGRESS' WHERE STATUS_TABLE_ID IN (:payload[Status.id])"  max-rows-per-poll="20"  row-mapper="rowMapper" update-per-row="true">
    <si:poller fixed-rate="60000">
        <si:transactional/>
    </si:poller>
</si-jdbc:inbound-channel-adapter>

<bean id="rowMapper" class="com.test.StatusMapper"></bean>

更新查询在查询返回的对象集合上使用投影
<si:channel id="output">
    <si:queue capacity="50" />
<si:interceptors>
     <si:wire-tap channel="logger"/>
 </si:interceptors>
</si:channel>
<si-jdbc:inbound-channel-adapter channel="input" data-source="myDataSource" auto-startup="true" query="SELECT * FROM STATUS_TABLE WHERE MESSAGE_STATUS ='WAITING'"
                                 update="UPDATE STATUS_TABLE SET MESSAGE_STATUS='IN_PROGRESS' WHERE STATUS_TABLE_ID IN (:payload[Status.id])"  max-rows-per-poll="20"  row-mapper="rowMapper" update-per-row="true">
    <si:poller fixed-rate="60000">
        <si:transactional/>
    </si:poller>
</si-jdbc:inbound-channel-adapter>

<bean id="rowMapper" class="com.test.StatusMapper"></bean>

expression=“#root.！[“+expression+”]”；

<si:channel id="output">
    <si:queue capacity="50" />
<si:interceptors>
     <si:wire-tap channel="logger"/>
 </si:interceptors>
</si:channel>
<si-jdbc:inbound-channel-adapter channel="input" data-source="myDataSource" auto-startup="true" query="SELECT * FROM STATUS_TABLE WHERE MESSAGE_STATUS ='WAITING'"
                                 update="UPDATE STATUS_TABLE SET MESSAGE_STATUS='IN_PROGRESS' WHERE STATUS_TABLE_ID IN (:payload[Status.id])"  max-rows-per-poll="20"  row-mapper="rowMapper" update-per-row="true">
    <si:poller fixed-rate="60000">
        <si:transactional/>
    </si:poller>
</si-jdbc:inbound-channel-adapter>

<bean id="rowMapper" class="com.test.StatusMapper"></bean>

这在此处的第二个注释中进行了描述
<si:channel id="output">
    <si:queue capacity="50" />
<si:interceptors>
     <si:wire-tap channel="logger"/>
 </si:interceptors>
</si:channel>
<si-jdbc:inbound-channel-adapter channel="input" data-source="myDataSource" auto-startup="true" query="SELECT * FROM STATUS_TABLE WHERE MESSAGE_STATUS ='WAITING'"
                                 update="UPDATE STATUS_TABLE SET MESSAGE_STATUS='IN_PROGRESS' WHERE STATUS_TABLE_ID IN (:payload[Status.id])"  max-rows-per-poll="20"  row-mapper="rowMapper" update-per-row="true">
    <si:poller fixed-rate="60000">
        <si:transactional/>
    </si:poller>
</si-jdbc:inbound-channel-adapter>

<bean id="rowMapper" class="com.test.StatusMapper"></bean>

这里描述集合投影
<si:channel id="output">
    <si:queue capacity="50" />
<si:interceptors>
     <si:wire-tap channel="logger"/>
 </si:interceptors>
</si:channel>
<si-jdbc:inbound-channel-adapter channel="input" data-source="myDataSource" auto-startup="true" query="SELECT * FROM STATUS_TABLE WHERE MESSAGE_STATUS ='WAITING'"
                                 update="UPDATE STATUS_TABLE SET MESSAGE_STATUS='IN_PROGRESS' WHERE STATUS_TABLE_ID IN (:payload[Status.id])"  max-rows-per-poll="20"  row-mapper="rowMapper" update-per-row="true">
    <si:poller fixed-rate="60000">
        <si:transactional/>
    </si:poller>
</si-jdbc:inbound-channel-adapter>

<bean id="rowMapper" class="com.test.StatusMapper"></bean>