Building web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: Building web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2
Building web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2
Enterprise Web Services7Web Services and J2EE8Web Services and Stateful Resources9Securing Web Services10Web Services Reliable Messaging11Web Services Building web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2 s Transactions12Orchestrating Web ServicesWeb Services and J2EETHIS CHAPTER INTRODUCES THE CONCEPTS of using SOAP, WSDL, and the Web services stack with Java 2 Enterprise Edition (J2EE) \_.Although a single chapter can't dojustice to a wide-ranging development platform, we'll show you how to enable Building web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2 Enterprise JavaBean v_.. components as Web services using Axis and the JSR109 JCP proposal.Continuing our example scenario, the SkatesTown technical tBuilding web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2
eam has been working in Java for a while and recently has been looking at moving some of the Java applications that run on their server into the J2EE Enterprise Web Services7Web Services and J2EE8Web Services and Stateful Resources9Securing Web Services10Web Services Reliable Messaging11Web Services Building web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2 y’re also interested in Web services, and they want to be able to create services easily. So. they’ve decided to build a sample application called SkatesEJB. which will be «1 pilot project to determine the value in using J2EE to implement their Web services.J2EE OverviewJava 2 Enterprise Edition (Ị2 Building web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2 EE) is the platform for building enterprise applications in Java. J2EE standardizes the services, programming model, and deployment for applications sBuilding web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2
o that developers can build solutions that can be used on a variety of application servers. J2EE has a number of application models:■Thin-chent/browseEnterprise Web Services7Web Services and J2EE8Web Services and Stateful Resources9Securing Web Services10Web Services Reliable Messaging11Web Services Building web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2 sed Enterprise JavaBeans (EJB) components.■Messaging applications use the Java Message Service to act on messages in queues or from subscriptions.To this list we can now add service-based applications, which offer services over SOAP/HTTP to clients.J2EE provides a framework that supports high qualit Building web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2 y of sendee (QoS). In other words. J2EE lets you build transactional, secure, reliable applications that are available348 Chapter 7 Web Services and JBuilding web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2
2EEacross a cluster of highly available servers. A J2EE application server provides a wide variety of capabilities including the following:•n'orklo.idEnterprise Web Services7Web Services and J2EE8Web Services and Stateful Resources9Securing Web Services10Web Services Reliable Messaging11Web Services Building web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2 ation, authentication, and access control■Resource management—Access to relational databases, transactional management systems, connectors to Enterprise Resource Planning (ERP) systems, and messaging systems•Transaction management—Two-phase commit support, transactional access to databases, and dist Building web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2 ributed transactions■Management, configuration, and administration—Deployment, configuration, and administration toolsThese services are provided throBuilding web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2
ugh the concept of a container.ContainersA container IS a logical entity in a J2EE server. Containers are entities that have contracts with the componEnterprise Web Services7Web Services and J2EE8Web Services and Stateful Resources9Securing Web Services10Web Services Reliable Messaging11Web Services Building web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2 ntainer manages the execution of those components as needed. The container provides isolation by intercepting calls to the EJBs, allowing the container to manage aspects such as threads, security, and transactions between components.The container also provides a useful abstraction between components Building web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2 and the resources they use.For example, when one component uses a database, the programmer uses a resource reference \_(resource ref) to link to theBuilding web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2
database. Then the deployment engineer can con-figure the actual database that maps to the reference. So. the code that is written and compiled isn’t Enterprise Web Services7Web Services and J2EE8Web Services and Stateful Resources9Securing Web Services10Web Services Reliable Messaging11Web Services Building web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2 lications. Later in the chapter, you'll sec an example of an ejb-ref that virtualizes access to another EJB.Enterprise JavaBeansThe core ofJ2EE is the EJB component. This is the programming model for writing and deploying business logic into an application server. EJBs provide a component model for Building web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2 creating business applications. EJB components are mainly focused on aspects such business logic, as well as database and legacy server access, transaBuilding web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2
ctions, security, and threading—in other words, how you build core business services in a Java environment.EJBs initially look complex because they weEnterprise Web Services7Web Services and J2EE8Web Services and Stateful Resources9Securing Web Services10Web Services Reliable Messaging11Web Services Building web services with java making sense of xml, soap, wsdl, and uddi (second edition) part 2 nt (IDE) that shows each component as a whole as well as theJ2EE Overview 349Enterprise Web Services7Web Services and J2EE8Web Services and Stateful Resources9Securing Web Services10Web Services Reliable Messaging11Web ServicesGọi ngay
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