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作者 | What's New in the j2ee1.4 Release |
abiaodog
发贴: 0 积分: 0 |
于 2002-12-06 00:24
http://java.sun.com/j2ee/sdk_1.4/beta/techdocs/release/ReleaseNotes.html#80425 What's New in the 1.4 Release -------------------------------------------------------------------------------- The following new features and technologies have been added for this release of the Java(TM) 2 SDK, Enterprise Edition (J2EE(TM) SDK). Web Services The primary goal of this release is to support Web services that are based on SOAP and HTTP. With this release, J2EE technology can be integrated with Web services in a variety of ways. J2EE components (servlets and enterprise beans) can be exposed as Web services. These services can be accessed by clients that are written in the Java programming language or by existing Web service clients that don't take advantage of Java technology. Also, J2EE components can act as Web service clients. The following sections briefly describe the new Web service APIs. Java API for XML-based RPC (JAX-RPC) 1.0 Interoperability based on SOAP and WSDL Servlet-based endpoints Stateless session bean endpoints (as defined in EJB 2.1) Client programming model for stubs, dynamic proxies, or dynamic invocation interfaces See also: Java API for XML-based RPC (JAX-RPC) Notes Java API for XML Registries (JAXR) Standard API for accessing different kinds of XML registries Unified information model describing the content and metadata within XML registries Web Services for J2EE 1.0 Deployment requirements for Web service clients and endpoints Standard deployment descriptors JAX-RPC programming model JNDI lookup of service objects Container-managed security Declaration of handlers and serializers SOAP with Attachments API for Java (SAAJ) 1.1 Produce and consume messages conforming to the SOAP 1.1 Specification and the SOAP with Attachments Note See also: SOAP with Attachments API for Java (SAAJ) Notes Other New J2EE Technologies This section lists other new technologies that have been added to this release. J2EE Deployment API 1.1 Deployment tools independent of J2EE application server JavaBeans(TM) for editing deployment information J2EE Management 1.0 Information model for management that includes attributes, events, statistics, and state management May be available through standard management protocols such as SNMP and WBEM Uses Java Managment Extensions (JMX) Enhancements to Existing J2EE Technologies This release includes important enhancements to technologies that were delivered in previous releases of the J2EE SDK. J2EE Connector 1.5 Bi-directional connectivity (synchronous and asynchronous) between EISs and J2EE applications provided by resource adapters Java Message Service(TM) (JMS(TM)) pluggability Enterprise Java Beans(TM) (EJB(TM)) 2.1 Web service endpoints (stateless session beans) Message-driven bean generalization with corresponding support in J2EE Connector 1.5 EJB QL enhancements Timer service Java Server Pages(TM) (JSP(TM)) 2.0 Simple expressoin language (from JSTL) JSP fragments Simple tag handlers Tag files Global configuration Servlet 2.4 Request listeners Filters under a request dispatcher Portable logouts Java Messaging Service (JMS(TM)) Common interfaces to allow access to either point-to-point or publish-subscribe Integration using a J2EE Connector Architecture resource adapter See also: Java Messaging Service (JMS(TM)) Notes Implementation Changes in the J2EE SDK This section describes some of the implementation-specific changes for this release. Conversion of deployment descriptors to XML Schema More parser validation Support for extensions in deployment descriptors Old deployment descriptors are still supported. Installed library support Separate installation from applications Referenced with the JAR file attributes of the J2SE(TM) platform |
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人气 | 标题 | 作者 | 字数 | 发贴时间 |
7827 | What's New in the j2ee1.4 Release | abiaodog | 3881 | 2002-12-06 00:24 |
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