Question

我想在完成SFTP上传后发送电子邮件...

我有一个SFTP上传器：

<sftp:outbound-channel-adapter
        id="sftpOutboundAdapter"
        channel="inputFiles"
        charset="UTF-8"
        remote-directory="${directory.remote}"
        session-factory="sftpSessionFactory">
    <sftp:request-handler-advice-chain>
        <bean class="org.springframework.integration.handler.advice.ExpressionEvaluatingRequestHandlerAdvice">
            <property name="onSuccessExpression" value="payload.delete()"/>
            <property name="successChannel" ref="successChannel"/>
            <property name="onFailureExpression" value="payload.renameTo(payload.absolutePath + '.error')"/>
            <property name="failureChannel" ref="failChannel"/>
        </bean>
    </sftp:request-handler-advice-chain>
</sftp:outbound-channel-adapter>

完成后，将有效负载发送到successChannel：

    <int:channel id="successChannel">
        <int:interceptors>
            <int:wire-tap channel="successLogChannel"/>
        </int:interceptors>
    </int:channel>

...然后通过窃听记录它。

<int:channel id="successLogChannel"/>
    <int:transformer input-channel="successLogChannel" output-channel="logChannel"
                     expression="'Successfully transferred ' + inputMessage.payload.absolutePath + ' [result=' + payload + ']'"/>
<int:logging-channel-adapter id="logChannel" level="INFO"/>

这里它正在破碎，我不认为属性是正确的元素使用，我基本上需要突破到java类，并能够传入参数，包括我刚刚上传的文件的名称。

<int:service-activator input-channel="successChannel" ref="Email" method="sendSuccessMail">
    <property name="to" value="test@gmail.com" />
    <property name="from" value="me@me.com" />
    <property name="filename" ref="'inputMessage.payload.absolutePath'" />
</int:service-activator>

Java类：

@Component(value = "Email")
public class Email extends AbstractMessaging<EmailRequest, EmailResponse> {

    ....

    public void sendSuccessMail(String to, String from, String filename){

        log.info("--------------------------------------------");
        log.info("Success Mail will be sent here to" + to + ", from " + from + " for " + filename);
        log.info("--------------------------------------------");

    }

}

FactoryBean在对象创建时抛出异常;嵌套异常是 java.lang.IllegalArgumentException：类型为[class]的目标对象 .email.Email]没有合格的方法来处理消息。

如果我不能使用方法sendSuccessMail，那么是否可以传递params或仅传递有效负载？

Answer 1

使用<header-enricher/>在标题中创建所需的值;然后...

public void sendSuccessMail(@Header("to") String to, @Header("from") String from, @Payload String filename){
    ...
}

<int:chain ...>
    <int:header-enricher>
        <int:header name="to" value="test@gmail.com">
        ...
        <int:header name="inputMessage" expression="inputMessage">
    </int:header-enricher>
    <int:transformer expression="headers['inputMessage'].payload.absolutePath">
    <int:service-activator ... />
</int:chain>

Spring Integration - 如何将参数传递给服务激活器

1 个答案: