CODEWITHSUNDEEP
javaxmltomcatxsd
Madhusudan
Madhusudan

Reputation: 4815

How to access a xsd file inside webcontent folder from normal java class?

I have a war file which is deployed on tomcat server. This war has xsd file at location webcontent -> WEB-INF -> resources -> HumanActivitySchema.xsd

I have a java class which is trying to load the schema to validate the input xml structure. This java class is part of war file deployment.

My java code function looks like:

public boolean validateXMLSchema(String iActivity){


    Source schemaFile = new StreamSource(getClass().getClassLoader()
            .getResourceAsStream("HumanActivitySchema.xsd"));

    try {
        SchemaFactory factory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
        Schema schema = factory.newSchema(schemaFile);
        Validator validator = schema.newValidator();
        validator.validate(new StreamSource(new StringReader(iActivity)));
    }
    catch (IOException | SAXException e) {
        if(DBG){
            System.out.println("Error Message while validating activity : " + e.getMessage());
        }
        return false;
    }
    return true;
}

But the issue with this code is, it is not finding xsd file. So all fields of schemaFile are null. As a result exception is thrown at factory.newSchema(schemaFile) point.

Can anyone tell me what I am doing wrong and what changes I should do so that I can load my .xsd file?

Upvotes: 0

Views: 621

Answers (1)

forty-two
forty-two

Reputation: 12817

You have two alternatives:

  1. Put your XSD in on the classpath by placing it in the WEB-INF/classes directory, and load it with:

    getClass().getClassLoader() .getResourceAsStream("/HumanActivitySchema.xsd")

    Note the preceding slash ('/'). You can also place it in a folder matching the package name of your Java class, and the omit the preceding '/'.

  2. Read the XSD through the ServletContext#getResourceAsStrem(String path) method. In your case the path would be

    /HumanActivitySchema.xsd

Upvotes: 1

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