消息属性可以以MQRFH2元素的形式表示。
Message properties can be represented as MQRFH2 elements. Figure 5 shows the structure of a MQRFH2 header.
额外的灵活性来自于对SOAP特定的JMS消息属性的定义。
Additional flexibility is provided by defining SOAP specific JMS message properties.
例子从SIMessage获取信息并返回表示消息属性的字符串。
The sample mediation extracts information from the SIMessage and returns a string representation of the message attributes.
在清单14和清单15中，我们使用英语和法语展示了一些消息属性示例。
In Listing 14 and Listing 15, we show some examples of message properties in English and French.
路由对象可以在传输消息属性之前对它们进行处理，这种操作通过属性映射完成。
Message properties can be manipulated by route objects before being transmitted, which is done through property maps.
可以实现此接口来创建一个消息属性，并在运行时将该属性附加到消息。
You can implement this interface to create a message property, and attach it to the message during runtime.
您也可以使用消息属性来包含业务数据或状态信息，而无需将其存储在应用程序数据中。
You can also use message properties to include business data or state information without having to store it in the application data.
此消息属性将在消息流经WebSphereESB 时存储该消息的有效负载。
This message attribute will store the payload of the message as it flows through WebSphere ESB.
V7的消息格式如图4所示，图中还显示了消息属性与消息描述符之间的对应。
The message format of V7 is shown in Figure 4, as well as the correspondences between the message properties and message descriptor.
其它消息属性，例如在发送新消息时，消息的期限或时间表将被重新设置或覆盖。
Other message properties, such as the expiry or message timestamp will be reset or overwritten when the new message is sent.
消息属性的长度限值是 100MB，其中不包括每个消息的消息描述符或扩展。
There is a length limit of 100 MB for message properties, excluding the message descriptor or extension for each message.
v7中为消息属性添加了一种新的上下文信息：用户上下文(user context)。
A new type of context information is added in V7 for message properties: user context. Table 5 lists the context fields in the message descriptor.
消息属性不计入队列和队列管理器的消息长度中，不过它们计入被队列管理器认为是属性的长度中。
Message properties do not count towards the length of the message for the queue and queue manager, but they do count towards the length of the properties as perceived by the queue manager.
完整消息存档——将全部内容(包括消息体、附件和消息属性)保存到一个msg类型的文件。
Entire message archiving - Archive everything, including message body, attachments, and message properties into a file of type MSG.
我们将通过使用此SIMessageContext中来访问消息属性、中介会话工具和消息主体本身。
It is this SIMessageContext that we can use to access message properties, mediation session facilities and the message body itself.
例如，您可能想要基于一个xml有效负载的根元素值或者一条FIX消息中的特定价格创建一个消息属性。
For example, you might want to create a message property based on the value of the root element of an XML payload or a specific price within a FIX message.
messageSelector：如果MQLLM消息属性被使用，您可以指定属性名和属性值。
messageSelector: If MQ LLM message properties are being used, you can specify a specific property name and value.
新的MQ i函数调用用于设置、查询和删除消息属性(MQSETMP,MQIN Q MP和MQDLTMP)。
New MQI function calls are used to set, inquire about, and delete message properties (MQSETMP, MQINQMP and MQDLTMP).
如果消息头中的每个文件夹都包含属性，MQRFH2头字段本身会被计入到消息属性的长度中，并成为消息属性的一部分。
If every folder in the header contains properties, the MQRFH2 header fields themselves are added to the message properties length and belong to the message properties section.
消息属性随webspheremq队列管理器中的任何消息流动，每个消息属性都包括一个文本名称和一个特定类型的值。
Message properties flow with any message in a WebSphere MQ queue manager, each consisting of a textual name and a value of a particular type.
当消息流向V 7版本之前的队列管理器时，除了那些在消息描述符中的属性之外，消息属性都被看作是消息数据并计入消息长度中。
When a message flows to a queue manager prior to V7, properties of the message, except those in the message descriptor, are treated as message data and count towards the length of the message.
WebSphereMQV 7(此后简称V7)引入了消息属性(来自JMS)的概念，因此WebSphere MQ消息的两个组成部分变为。
WebSphere MQ V7 (hereafter called V7) introduced the concept of message properties (from JMS), and therefore the two components of a WebSphere MQ message become.
然而，中介程序模型提供一个所有消息的服务数据对象(Service Data Object,SDO)接口，以及访问这些不同种类消息属性和元数据的通用API。
However, the mediation programming model provides a Service data Object (SDO) interface to all messages and a common API for accessing properties and metadata.
消息属性文件(它的名称是application . properties，位于resources目录中)在struts - config . xml文件中定义。
The message properties file, named application.properties and located in a resources directory, is defined in the struts-config.xml file.
最后，设置在输入无效时显示的错误消息：除了消息属性之外，还要输入消息“Theacceptablevalueshouldbeginwith'ID ' followedbysixdigits .”。
Finally, set the error message that is displayed when the input in invalid: Beside the message property, enter the message: "the acceptable value should begin with 'id' followed by six digits."
例如一个排序的系统可以设置顺序值作为消息的属性。
For example, an ordering system may set the value of an order as a message property.
如果选择了验证，则它将在验证模式下操作，并预期为其提供一个消息集属性。
If validation is selected then it operates in validating mode and expects a Message Set property to be supplied.
消息选择的执行是基于设置在消息头中的属性值。
Message selection is performed based on header property values that are set in messages.
在此模式中，基于消息的某个属性将传入消息路由到某个端点。
In this pattern, an incoming message is routed to an endpoint, based on some attribute of the message.
由于属性被不同的消息用来定义相关性数据，所以需要一种机制来允许指向表示这个属性的消息的专用字段。
Because a property is used by different messages to define correlation data, a mechanism is needed that allows pointing to a dedicated field of the message that represents this property.
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