Validate xml against XML Schema : Schema « XML « Java Validate xml against XML Schema : Schema « XML « Java

Validating xml file against schema java. Java - validating xml against xsd - stack overflow

The next code listing is for the complete XmlValidator class. I had the same issue when I was programming a project for Android. If the node is an element declaration, pass the local name and namespace to the getElement method of the schema object.

1) Convert XML to Java Object after XSD Validation

The createURL method is a helper method that constructs a URL from the schema document file name specified on the command line. Follow the basic steps in this section to write Java programs that use the build method of the oracle.

The first argument is the name of the property, which is fixedSchema, and the second is the reference to the XML schema object. Follow the steps in this section to write programs that use the setValidationMode method of the oracle.

You need SVN to get the project, the following are some crib notes: This code fragment from XSDLax.

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No SchemaFactory that implements the schema language specified by: Based on the little I can see in your post, and from what I can remember, the problem with the way you're loading the XSD has to do with the fact that doing it your way, the factory doesn't get a base uri, hence it can't apply its smarts to resolve references to the other two XSDs.

To enable this, a main function is defined as shown in the next code listing. I have to assume that your other two XSDs are also packed as resources in the same jar, in the same directory.

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A LAX parser indicates that the processor is to perform validation for elements in the instance document that are declared in an associated XML schema. Some things just aren't supported the same with Dalvik, so I made some modifications. For a top-level element declaration, set the property name to XSDNode.

Schema is instantiated with a call to javax. Create a DOM parser to use for validation of the instance document. For a type node, set the property name to XSDNode.

Validating a xml against an xml schema using java

Set the output error stream for the parser. This code shows this technique: In most cases, I have tried to comment the code that requires JDK 7 or JDK 8 to identify these dependencies and provide alternative approaches in earlier versions of Java.

Set the validation mode for the DOM parser object. You can test the program: The validation mode is implicit because the XML schema is referenced in the instance document itself.

Validate XML against XSD Schema using JDOM

The complete code listing for the Java-based XML validation tool discussed in this post is included at the end of the post. For a top-level type definition, set the property name to XSDNode. As the comment in the code states, the JDK 7 language change supporting catching of multiple exceptions in a single catch clause is used in this method but could be replaced with separate catch clauses or catching of a single more general exception for code bases earlier than JDK 7.

I'm sure there is a more succinct way of doing this, however I figured I'd share my success, as there weren't any good examples that I found. This code fragment from domxsd.

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The processor does not consider the instance document invalid if it contains no elements declared in the schema. I have to admit that I am intrigued by the error message, which seems to imply the schema it loaded is valid, so it might be an XML issue; if the above doesn't help you, then you should consider posting the offending XML as well For creating the files, I made a simple file utility to write string to files: The Java tool developed in this post requires JDK 8.

Using the XML Schema Processor for Java

Create a DOM parser to use for the validation of an instance document. The following worked for me for validation on Android, if your code relates to Android perhaps it will help, if it doesn't then perhaps the approach will help you with your underlying system: The first argument is the name of the property, which in this example is fixedSchema, and the second is the reference to the schema object.

I have done this so that the tool can be adapted to work even in environments with older versions of Java.

Collectors; import static java.

Java XML validation against XSD Schema

The next code listing includes the code just highlighted but represents the entire method in which that code resides. An entity resolver is a class that implements the EntityResolver interface. Invoke different methods depending on whether the node is an element declaration or a complex type: As per my comments, it is working as described.

The builder can read the schema documents from the InputSource.

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The output with the most significant portions of the error message highlighted is shown after the code listing. The method is implemented: Test by typing "svn" from the command line. I have found it useful to have my own easy-to-use XML validation tool because of limitations or issues of the previously mentioned approaches.

How do I validate XML against XSD in Java? | Kode Java

The program output with one of the files downloaded from here: The most significant lines of code from that application when discussing validation of XML against one or more XSDs is shown next. You do not have to create an XML schema object explicitly because the schema is internally referenced by the instance document.

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The purpose of the resolver is to enable the XML reader to intercept any external entities before including them. One could easily port this to Groovy to be even more script-friendly.

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This method also handles the various types of exceptions that might be thrown during the validation process. Specify the XML schema to use for validation. Java makes it easy to write such a tool and this post demonstrates how easy it is to develop a simple XML validation tool in Java.