Msmq test tools

Local host machines are referenced with a dot or a period shown as. The code now exists to send a message to MSMQ. This object is implicitly created when messages are sent.

Add the code in the following steps to the Click event of button2. This class must be explicitly created when receiving messages. The constructor of the XMLMessageFormatter class takes either a string array of type names or, more preferably, a Type array of types:. Messages are received by calling the Receive method. Access the Body property to read the message contents. The Body property returns an object, therefore the object has to be cast to the payment type to retrieve the contents in a usable form:.

The code should be changed in Visual Studio When you create a Windows Forms project, Visual C adds one form to the project by default. This form is named Form1. The two files that represent the form are named Form1. You write your code in Form1. The Designer. Return to the Computer Management console. Click the Queue messages folder in Private Queues under billpay , and then verify that MSMQ received a message indicated by an envelope icon.

Right-click the message, click Properties , and then click the Body tab. You notice the payment message. Build and run the. NET client sample code. Enter nant at a command prompt within the dotNET subdirectory to build the sample, and enter client to run it. Upon running, the. NET client will display the following:.

Now run the Java client in a separate command prompt window. Enter ant run at a command prompt within the Java subdirectory to build and run the Java client. If successful, you should notice a number of operations. Next, the Java client picks up the message that has been delivered by the bridge from the.

NET client:. Notice how the message is encapsulated in an XML document. We'll get to the reasoning behind this shortly. Before we do, switch back to the command prompt window that's running the. NET client. So, why the XML? Recall that in Chapter 8 you saw how the System. Messaging namespace was used by a. NET Remoting. By specifying this formatter, the text string message that the.

NET client sends is serialized into an XML document, which is the result displayed when the Java client reads the message. Although this is fine for our test string message, in a production environment you'll want to avoid constructing your own XML documents in strings.

One way for the Java client to create messages that the. Because the. When sending messages back to the. Workflow : Message Queuing makes it easy to create a workflow that updates each system. A typical design pattern is to implement an agent to interact with each system. Using a workflow agent architecture also minimizes the impact of changes in one system on the other systems. With Message Queuing, the loose coupling between systems makes upgrading individual systems simpler.

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