Java J2ee Planet

Currently I am working on a project where I need to transform Excel sheet data to an XML format in compliance with XSD given by my client. When I am trying to parse the XSD using JAXB I got this error when doing mvn clean install. Error: ""Current configuration of the parser doesn't allow a maxOccurs attribute value to be set greater than the value 5,000." I found many solutions and route cause for this issue. You can find some information on Oracle site the route cause for the issue . It is because of the feature enabled for secure XML processing. This feature was enable in JAXP 1.3 which instructs parsers, transformers to behave in a secure fashion. You can find more information here: https://jaxp.java.net/1.4/JAXP-Compatibility.html#JAXP_security. For me 2 solutions worked out: Solution 1: With code change or implemenetation: //Create SchemaFactory using XSD file SchemaFactory factory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_UR...

What are web services? A web service is a business function that is self-contained and operates over the internet. The W3C defined web service as "a software system designed to support interoperable machine-to-machine interaction over a network". XML is the base for the web services. They communicate using open protocols. Web services are more frequently like Web APIs. These services accessibility can be from internet. A remote system can host these services for different web services. A web service can convert a stand alone / desktop application into a web based / web application. A web services are published or found and utilized through the internet. The web services works on the XML + HTTP platform. Explain each web service technologies - SOAP, WSDL, UDDI, eBXML and JAX pack.

An XML Schema represents the structure of an XML document in XML syntax. J2EE developers may require an XML document to conform to an XML Schema. The Java Architecture for XML Binding (JAXB) provides a binding compiler, xjc , to generate Java classes from an XML Schema. The Java classes generated with the JAXB xjc utility represent the different elements and complexType s in an XML Schema. (A complexType provides for constraining an element by specifying the attributes and elements in an element.) An XML document that conforms to the XML Schema may be constructed from the Java classes. In this tutorial, JAXB is used to generate Java classes from an XML Schema. An example XML document shall be created from the Java classes. This article is structured into the following sections. Preliminary Setup Overview Generating Java Classes from XML Schema Creating an XML Document from Java Classes Preliminary Setup To generate Java classes from an XML Schema with the JAXB , the JAXB...

This sample application demonstrates how to construct value classes and create a java content tree from scratch and marshal it to XML data step by step. System Requests Download and install the Java Web Services Developer Pack (Java WSDP) currently at version 2.0 from Sun Microsystem. The Java WSDP is a free, integrated toolkit that allows Java developers to build, test, and deploy XML applications, Web services, and Web applications. Assume that you install JWSDP to C:\jwsdp-2.0 directory. Create a C:\jaxb_samples directory on your machine. For occasional developers, it is convenient to set these variables in a batch file that you run every time you open a command-prompt window. Alternatively, these settings can be permanently added to the command-prompt shortcut. Here is what you should add to a "jaxbsetup.bat" file in C:\jaxb_samples directory (note that only "set" commands are in this listing, any line that doesn't start with "set" is a continua...

A book by Elliotte Rusty Harold, is a complete tutorial about writing Java programs that read and write XML documents. This is the most comprehensive and up-to-date book about integrating XML with Java (and vice versa) you can buy. It contains over 1000 pages of detailed information on SAX, DOM, JDOM, JAXP, TrAX, XPath, XSLT, SOAP, and lots of other juicy acronyms. This book is written for Java programmers who want to learn how to read and write XML documents from their code. Read..

Java Architecture for XML Binding (JAXB) is an API/framework that binds XML schema to Java representations. Java objects may then subsequently be used to marshal or unmarshal XML documents. Marshalling an XML document means creating an XML document from Java objects. Unmarshalling means creating creating a Java representation of an XML document (or, in effect, the reverse of marshaling). You retrieve the element and attribute values of the XML document from the Java representation. The JAXB 2.0 specification is implemented in JWSDP 2.0. JAXB 2.0 has some new features, which facilitate the marshalling and unmarshalling of an XML document. JAXB 2.0 also allows you to map a Java object to an XML document or an XML Schema. Some of the new features in JAXB 2.0 include: Smaller runtime libraries are required for JAXB 2.0, which require lesser runtime memory. Significantly, fewer Java classes are generated from a schema, compared to JAXB 1.0. For each top-level complexType, 2.0 generates a v...

Download the JA XB tutorial PDF Link : https://www6.software.ibm.com/developerworks/education/x-jaxb/x-jaxb-a4.pdf