This text shows how to use the APIs, tools, and tricks of XML to build real-world applications, with the end result that both the data and the code are portable. In its second edition it has added chapters on Advanced SAX and Advanced DOM, chapters on SOAP and data binding and examples throughout. A concise chapter on XML basics introduces concepts and the rest of the book focuses on using XML from Java applications. Java developers who need to work with XML, or think that they will in the future - as well as developers involved in the peer-to-peer movement, messaging, or Web services - should find the text useful. This text covers: the basics of XML, including DTDs, namespaces, XML Schema, XPath, and XSL; the SAX API, including all handlers, the SAX 2 extensions, filters, and writers; the DOM API, including DOM Level 2, Level 3, and the DOM HTML module; the JDOM API, including the core, a look at XPath support, and JDOM as a JSR; using Web publishing frameworks like Apache Cocoon; developing applications with XML-RPC; using SOAP and UDDI for web services; data binding, using both DTDs and XML Schema for constraints; building business-to-business applications with XML; and building information channels with RSS and dynamic content with XSP. It includes a quick reference on SAX 2.0, DOM Level 2, and JDOM.