Java Web Services

Java Web Services
Developer Pack v1.3
Zhongnan Shen
12/04/2003

Outlines

What is WSDP?

What’s in WSDP?

An Example
The Coffee Break Application

Resources

What is WSDP

A free integrated toolkit used to build
and test XML applications, Web
services, and Web applications with
the latest Web service technologies
and standards implementations ;

Supports WS-I Basic Profile 1.0;

Can be downloaded at
/> size:26M; platform: windows, unix

What’s in WSDP


Java Architecture for XML Binding (JAXB) v1.0.2;

Java API for XML Processing (JAXP) v1.2.4;

Java API for XML-based RPC (JAX-RPC) v1.1;

SOAP with Attachments API for Java (SAAJ) v1.2;

Java API for XML Registries (JAXR) v1.0.5;

JavaServer Faces (JSF) v1.0 EA4;

JavaServer Pages Standard Tag Library (JSTL) v1.1 EA;

XML and Web Services Security v1.0 EA2;

Java WSDP Registry Server v1.0_06;

Ant Build Tool 1.5.4;

Apache Tomcat v5 development container;

Ws-I Supply Chain Management Sample Application 1.0;

What’s in WSDP

Java Architecture for XML Binding (JAXB)

Providing API and tools for automating the

mapping between XML documents and Java
objects;

Compiling an XML schema into one or more Java
technology classes;

The following operations can be performed:

unmarshal XML content into a Java representation;

access, update and validate the Java
representation against schema constraint;

marshal the Java representation of the XML content
into XML content.

What’s in WSDP

Java Architecture for XML Binding (JAXB)
XML Schema Java Class Files
<xsd:element name="purchaseOrder"
type="PurchaseOrderType"/>
PurchaseOrder.
java
<xsd:element name="comment" type="xsd:string"/> Comment.java
<xsd:complexType name="PurchaseOrderType">
<xsd:sequence>
<xsd:element name="shipTo" type="USAddress"/>
<xsd:element name="billTo" type="USAddress"/>
<xsd:element ref="comment" minOccurs="0"/>

</xsd:sequence>
<xsd:attribute name="orderDate" type="xsd:date"/>
</xsd:complexType>
PurchaseOrder
Type.java

What’s in WSDP

Java API for XML Processing (JAXP)

supports processing of XML documents using
DOM, SAX, and XSLT;

Document Object Model (DOM): an application
programming interface for HTML and XML
documents;

Simple API for XML (SAX): a common interface
implemented for many different XML parsers;

XSL Transformations (XSLT): a language for
transforming XML documents into other XML
documents;

supports for XML schema and an XSLT
compiler (XSLTC);

What’s in WSDP

Java API for XML-Based RPC (JAX-RPC)


an API for building Web services and clients that use
remote procedure calls (RPC) and XML ;

an easy-to-develop programming model for
development of SOAP based web services, including
web service clients and endpoints;

developers are not exposed to the complexity of SOAP
protocol level mechanisms;

support for WSDL->Java and Java->WSDL mapping;

support for SOAP message processing model;

support for document based messaging;

support HTTP level session management and SSL
based security mechanisms.

What’s in WSDP

Java API for XML-Based RPC (JAX-RPC)

What’s in WSDP

SOAP with Attachments API for Java (SAAJ)

enables developers to produce and consume
messages conforming to the SOAP 1.1

specification and SOAP with Attachments note;

derived from the package originally defined in
the JAXM 1.0 specification;

SOAP messages can contain both XML contents
and non-XML contents (as attachments);

Messages sent using the SAAJ API are called
request-response messages;