spring XmlServletWebServerApplicationContext 源码
springboot XmlServletWebServerApplicationContext 代码
文件路径:/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/servlet/context/XmlServletWebServerApplicationContext.java
/*
* Copyright 2012-2020 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.boot.web.servlet.context;
import org.springframework.beans.factory.xml.XmlBeanDefinitionReader;
import org.springframework.core.env.ConfigurableEnvironment;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
import org.springframework.web.context.support.XmlWebApplicationContext;
/**
* {@link ServletWebServerApplicationContext} which takes its configuration from XML
* documents, understood by an
* {@link org.springframework.beans.factory.xml.XmlBeanDefinitionReader}.
* <p>
* Note: In case of multiple config locations, later bean definitions will override ones
* defined in earlier loaded files. This can be leveraged to deliberately override certain
* bean definitions via an extra XML file.
*
* @author Phillip Webb
* @since 1.0.0
* @see #setNamespace
* @see #setConfigLocations
* @see ServletWebServerApplicationContext
* @see XmlWebApplicationContext
*/
public class XmlServletWebServerApplicationContext extends ServletWebServerApplicationContext {
private final XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(this);
/**
* Create a new {@link XmlServletWebServerApplicationContext} that needs to be
* {@linkplain #load loaded} and then manually {@link #refresh refreshed}.
*/
public XmlServletWebServerApplicationContext() {
this.reader.setEnvironment(getEnvironment());
}
/**
* Create a new {@link XmlServletWebServerApplicationContext}, loading bean
* definitions from the given resources and automatically refreshing the context.
* @param resources the resources to load from
*/
public XmlServletWebServerApplicationContext(Resource... resources) {
load(resources);
refresh();
}
/**
* Create a new {@link XmlServletWebServerApplicationContext}, loading bean
* definitions from the given resource locations and automatically refreshing the
* context.
* @param resourceLocations the resources to load from
*/
public XmlServletWebServerApplicationContext(String... resourceLocations) {
load(resourceLocations);
refresh();
}
/**
* Create a new {@link XmlServletWebServerApplicationContext}, loading bean
* definitions from the given resource locations and automatically refreshing the
* context.
* @param relativeClass class whose package will be used as a prefix when loading each
* specified resource name
* @param resourceNames relatively-qualified names of resources to load
*/
public XmlServletWebServerApplicationContext(Class<?> relativeClass, String... resourceNames) {
load(relativeClass, resourceNames);
refresh();
}
/**
* Set whether to use XML validation. Default is {@code true}.
* @param validating if validating the XML
*/
public void setValidating(boolean validating) {
this.reader.setValidating(validating);
}
/**
* {@inheritDoc}
* <p>
* Delegates the given environment to underlying {@link XmlBeanDefinitionReader}.
* Should be called before any call to {@link #load}.
*/
@Override
public void setEnvironment(ConfigurableEnvironment environment) {
super.setEnvironment(environment);
this.reader.setEnvironment(getEnvironment());
}
/**
* Load bean definitions from the given XML resources.
* @param resources one or more resources to load from
*/
public final void load(Resource... resources) {
this.reader.loadBeanDefinitions(resources);
}
/**
* Load bean definitions from the given XML resources.
* @param resourceLocations one or more resource locations to load from
*/
public final void load(String... resourceLocations) {
this.reader.loadBeanDefinitions(resourceLocations);
}
/**
* Load bean definitions from the given XML resources.
* @param relativeClass class whose package will be used as a prefix when loading each
* specified resource name
* @param resourceNames relatively-qualified names of resources to load
*/
public final void load(Class<?> relativeClass, String... resourceNames) {
Resource[] resources = new Resource[resourceNames.length];
for (int i = 0; i < resourceNames.length; i++) {
resources[i] = new ClassPathResource(resourceNames[i], relativeClass);
}
this.reader.loadBeanDefinitions(resources);
}
}
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