为什么spring cloud stream在向Solace主题发布消息时不填充JMSMessageID？ 问题概述

在我的项目中，我们尝试使用Spring Cloud Stream（SCS）连接到Solace。最终我们计划搬到卡夫卡。因此，使用SCS将帮助我们非常轻松地转移到卡夫卡，而无需任何代码更改和非常小的配置和依赖项更改

我们使用JMS使用Solace已有一段时间了。现在，当我们尝试使用SCS向Solace发布消息时，我们发现在消息中，一些关键的JMS头（JMSMessageID、JMSType、JMSPriority、JMSCorrelationID、JMSExpiration）是空白的

我们需要单独配置JMS头吗？如果是，如何进行

我已经试过了 我试图像这样设置标题，但这只会导致相同名称的重复标题

@输出（SendReport.TO_NMR）
公共无效发送消息（字符串请求）{
log.info（“****************收到此报告请求：“+请求”）；
MessageBuilder=MessageBuilder.withPayload（请求）；
setHeader（“JMSType”、“报告请求”）；
builder.setHeader（“JMSMessageId”、“1”）；
builder.setHeader（“JMSCorrelationId”、“11”）；
builder.setHeader（“JMSMessageID”、“4”）；
builder.setHeader（“JMSCorrelationID”、“114”）；
setHeader（“ApplicationMessageId”、“111”）；
setHeader（“ApplicationMessageID”、“112”）；
builder.setCorrelationId（“23434”）；
Message=builder.build（）；
sendReport.output（）.send（消息）；
}

Solace中消息的JMS头如下所示

JMSMessageID    
JMSDestination  TOPIC_NAME
JMSTimestamp    Wed Dec 31 18:00:00 CST 1969
JMSType 
JMSReplyTo  
JMSCorrelationID    
JMSExpiration   0
JMSPriority 0
JMSType nmr-report-request
JMSMessageId    1
JMSMessageID    4
_isJavaSerializedObject-contentType true
_isJavaSerializedObject-id  true
solaceSpringCloudStreamBinderVersion    0.1.0
ApplicationMessageId    111
ApplicationMessageID    112
JMSCorrelationId    11
JMSCorrelationID    114
correlationId   23434
id  [-84,-19,0,5,115,114,0,14,106,97,118,97,46,117,116,105,108,46,85,85,73,68,-68,-103,3,-9,-104,109,-123,47,2,0,2,74,0,12,108,101,97,115,116,83,105,103,66,105,116,115,74,0,11,109,111,115,116,83,105,103,66,105,116,115,120,112,13,-26,2,-51,111,-17,73,73,-18,-32,-26,-11,-46,-89,50,-37] (offset=377, length=80)
contentType [-84,-19,0,5,115,114,0,33,111,114,103,46,115,112,114,105,110,103,102,114,97,109,101,119,111,114,107,46,117,116,105,108,46,77,105,109,101,84,121,112,101,56,-76,29,-63,64,96,-36,-81,2,0,3,76,0,10,112,97,114,97,109,101,116,101,114,115,116,0,15,76,106,97,118,97,47,117,116,105,108,47,77,97,112,59,76,0,7,115,117,98,116,121,112,101,116,0,18,76,106,97,118] (offset=473, length=190)
timestamp   1555707627482

用于连接Solace的代码 弹簧靴主类

@springboot应用程序
@EnableDiscoveryClient
@Slf4j
@EnableBinding（{SendReport.class}）
公共类ReportServerApplication{
公共静态void main（最终字符串[]args）{
ApplicationContext ctx=新类路径XmlApplicationContext（“ApplicationContext server.xml”）；
新的SpringApplicationBuilder（ReportServerApplication.class）.listeners（新环境PreparedListener（））.run（args）；
}

类将频道连接到主题：

公共接口发送报告{
字符串指向\u NMR=“solace poc outbound”；
@输出（SendReport.TO_NMR）
MessageChannel输出（）；
}

消息处理程序：

@Slf4j
@组成部分
@EnableBinding（{SendReport.class}）
公共类MessageHandler{
私人发送报告发送报告；
公共消息处理程序（SendReport SendReport）{
this.sendReport=sendReport；
}
@输出（SendReport.TO_NMR）
公共无效发送消息（字符串请求）{
log.info（“****************收到此报告请求：“+请求”）；
var message=MessageBuilder.withPayload（request.build（）；
sendReport.output（）.send（消息）；
}
}

用于配置的属性：application.yml

spring:
  cloud:
    # spring cloud stream binding
    stream:
      bindings:
        solace-poc-outbound:
          destination: TOPIC_NAME
          contentType: text/plain

solace:
  java:
    host: tcp://xyz.abc.com
    #port: xxx
    msgVpn: yyy
    clientUsername: aaa

使用的依赖项：

'org.springframework.cloud:spring-cloud-stream',
'com.solace.spring.cloud:spring-cloud-starter-stream-solace:1.1.+'

观察

• 预期结果：所有JMS头都应该由SCS填充
• 实际结果：未填充某些JMS头

---

参见JMS

消息

JavaDocs:

/** Sets the message ID.
  *  
 * <P>This method is for use by JMS providers only to set this field 
 * when a message is sent. This message cannot be used by clients 
 * to configure the message ID. This method is public
 * to allow a JMS provider to set this field when sending a message
 * whose implementation is not its own.
  *
  * @param id the ID of the message
  *
  * @exception JMSException if the JMS provider fails to set the message ID 
  *                         due to some internal error.
  *
  * @see javax.jms.Message#getJMSMessageID()
  */ 

void
setJMSMessageID(String id) throws JMSException;

但是：这不是我们可以从应用程序级别控制的

可以从

JmsSendingMessageHandler

填充

优先级

、

deliveryMode

和

timeToLive

：

if (this.jmsTemplate instanceof DynamicJmsTemplate && this.jmsTemplate.isExplicitQosEnabled()) {
        Integer priority = StaticMessageHeaderAccessor.getPriority(message);
        if (priority != null) {
            DynamicJmsTemplateProperties.setPriority(priority);
        }
        if (this.deliveryModeExpression != null) {
            Integer deliveryMode =
                    this.deliveryModeExpression.getValue(this.evaluationContext, message, Integer.class);

            if (deliveryMode != null) {
                DynamicJmsTemplateProperties.setDeliveryMode(deliveryMode);
            }
        }
        if (this.timeToLiveExpression != null) {
            Long timeToLive = this.timeToLiveExpression.getValue(this.evaluationContext, message, Long.class);
            if (timeToLive != null) {
                DynamicJmsTemplateProperties.setTimeToLive(timeToLive);
            }
        }
    }

JmsCorrelationID

必须由

JmsHeaders.CORRELATION\u ID

填充。

JmsHeaders.TYPE

分别填充

JmsType

：

public void fromHeaders(MessageHeaders headers, javax.jms.Message jmsMessage) {
    try {
        Object jmsCorrelationId = headers.get(JmsHeaders.CORRELATION_ID);
        if (jmsCorrelationId instanceof Number) {
            jmsCorrelationId = jmsCorrelationId.toString();
        }
        if (jmsCorrelationId instanceof String) {
            try {
                jmsMessage.setJMSCorrelationID((String) jmsCorrelationId);
            }
            catch (Exception e) {
                this.logger.info("failed to set JMSCorrelationID, skipping", e);
            }
        }
        Object jmsReplyTo = headers.get(JmsHeaders.REPLY_TO);
        if (jmsReplyTo instanceof Destination) {
            try {
                jmsMessage.setJMSReplyTo((Destination) jmsReplyTo);
            }
            catch (Exception e) {
                this.logger.info("failed to set JMSReplyTo, skipping", e);
            }
        }
        Object jmsType = headers.get(JmsHeaders.TYPE);
        if (jmsType instanceof String) {
            try {
                jmsMessage.setJMSType((String) jmsType);
            }
            catch (Exception e) {
                this.logger.info("failed to set JMSType, skipping", e);
            }
        }

---

有关更多信息，请参阅

DefaultJmsHeaderMapper

。

请参阅JMS

Message

JavaDocs:

/** Sets the message ID.
  *  
 * <P>This method is for use by JMS providers only to set this field 
 * when a message is sent. This message cannot be used by clients 
 * to configure the message ID. This method is public
 * to allow a JMS provider to set this field when sending a message
 * whose implementation is not its own.
  *
  * @param id the ID of the message
  *
  * @exception JMSException if the JMS provider fails to set the message ID 
  *                         due to some internal error.
  *
  * @see javax.jms.Message#getJMSMessageID()
  */ 

void
setJMSMessageID(String id) throws JMSException;

但是：这不是我们可以从应用程序级别控制的

可以从

JmsSendingMessageHandler

填充

优先级

、

deliveryMode

和

timeToLive

：

if (this.jmsTemplate instanceof DynamicJmsTemplate && this.jmsTemplate.isExplicitQosEnabled()) {
        Integer priority = StaticMessageHeaderAccessor.getPriority(message);
        if (priority != null) {
            DynamicJmsTemplateProperties.setPriority(priority);
        }
        if (this.deliveryModeExpression != null) {
            Integer deliveryMode =
                    this.deliveryModeExpression.getValue(this.evaluationContext, message, Integer.class);

            if (deliveryMode != null) {
                DynamicJmsTemplateProperties.setDeliveryMode(deliveryMode);
            }
        }
        if (this.timeToLiveExpression != null) {
            Long timeToLive = this.timeToLiveExpression.getValue(this.evaluationContext, message, Long.class);
            if (timeToLive != null) {
                DynamicJmsTemplateProperties.setTimeToLive(timeToLive);
            }
        }
    }

JmsCorrelationID

必须由

JmsHeaders.CORRELATION\u ID

填充。

JmsHeaders.TYPE

分别填充

JmsType

：

public void fromHeaders(MessageHeaders headers, javax.jms.Message jmsMessage) {
    try {
        Object jmsCorrelationId = headers.get(JmsHeaders.CORRELATION_ID);
        if (jmsCorrelationId instanceof Number) {
            jmsCorrelationId = jmsCorrelationId.toString();
        }
        if (jmsCorrelationId instanceof String) {
            try {
                jmsMessage.setJMSCorrelationID((String) jmsCorrelationId);
            }
            catch (Exception e) {
                this.logger.info("failed to set JMSCorrelationID, skipping", e);
            }
        }
        Object jmsReplyTo = headers.get(JmsHeaders.REPLY_TO);
        if (jmsReplyTo instanceof Destination) {
            try {
                jmsMessage.setJMSReplyTo((Destination) jmsReplyTo);
            }
            catch (Exception e) {
                this.logger.info("failed to set JMSReplyTo, skipping", e);
            }
        }
        Object jmsType = headers.get(JmsHeaders.TYPE);
        if (jmsType instanceof String) {
            try {
                jmsMessage.setJMSType((String) jmsType);
            }
            catch (Exception e) {
                this.logger.info("failed to set JMSType, skipping", e);
            }
        }

有关更多信息，请参见

DefaultJmsHeaderMapper