How to use custom NamespaceHandlerResolver when creating XML ApplicationContext?

问题

I would like to use a custom NamespaceHandlerResolver when creating a spring application context from xml.

The spring documentation only explains how to create custom NamespaceHandler. But I need to use a specifically initialized NamespaceHandlerResolver in order to get the NamespaceHandlers I need to use corretly initialized (NamespaceHandlers are context dependent).

So when creating an xml applicationcontext, how to set a custom NamespaceHandlerResolver?

回答1:

One needs to create an application context derived from org.springframework.context.support.AbstractXmlApplicationContext and must override initBeanDefinitionReader(XmlBeanDefinitionReader reader). The override should set the custom NamespaceHandlerResolver to the reader instance.

import org.springframework.beans.factory.xml.NamespaceHandlerResolver;
import org.springframework.beans.factory.xml.XmlBeanDefinitionReader;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class CustomNamespaceHandlerClassPathXmlApplicationContext extends ClassPathXmlApplicationContext {

    private NamespaceHandlerResolver customNamespaceHandlerResolver;

    @Override
    protected void initBeanDefinitionReader(XmlBeanDefinitionReader reader) {
        super.initBeanDefinitionReader(reader);
        reader.setNamespaceHandlerResolver(customNamespaceHandlerResolver);
    }

    public void setCustomNamespaceHandlerResolver(
            NamespaceHandlerResolver customNamespaceHandlerResolver) {
        this.customNamespaceHandlerResolver = customNamespaceHandlerResolver;
    }
}

来源：https://stackoverflow.com/questions/34697960/how-to-use-custom-namespacehandlerresolver-when-creating-xml-applicationcontext

标签

java

Spring

applicationcontext