Spring--ClassPathXmlApplicationContext

public class ClassPathXmlApplicationContext extends AbstractXmlApplicationContext {

private Resource[] configResources;

/**
* Create a new ClassPathXmlApplicationContext for bean-style configuration.
* @see #setConfigLocation
* @see #setConfigLocations
* @see #afterPropertiesSet()
*/
public ClassPathXmlApplicationContext() {
}

/**
* Create a new ClassPathXmlApplicationContext for bean-style configuration.
* @param parent the parent context
* @see #setConfigLocation
* @see #setConfigLocations
* @see #afterPropertiesSet()
*/
public ClassPathXmlApplicationContext(ApplicationContext parent) {
super(parent);
}

/**
* Create a new ClassPathXmlApplicationContext, loading the definitions
* from the given XML file and automatically refreshing the context.
* @param configLocation resource location
* @throws BeansException if context creation failed
*/
//下载一个定义好的xml,自动刷新上下文
public ClassPathXmlApplicationContext(String configLocation) throws BeansException {
this(new String[] {configLocation}, true, null);
}

/**
* Create a new ClassPathXmlApplicationContext, loading the definitions
* from the given XML files and automatically refreshing the context.
* @param configLocations array of resource locations
* @throws BeansException if context creation failed
*/
//下载一个定义好的xml,自动刷新上下文
public ClassPathXmlApplicationContext(String... configLocations) throws BeansException {
this(configLocations, true, null);
}

/**
* Create a new ClassPathXmlApplicationContext with the given parent,
* loading the definitions from the given XML files and automatically
* refreshing the context.
* @param configLocations array of resource locations
* @param parent the parent context
* @throws BeansException if context creation failed
*/
public ClassPathXmlApplicationContext(String[] configLocations, ApplicationContext parent) throws BeansException {
this(configLocations, true, parent);
}

/**
* Create a new ClassPathXmlApplicationContext, loading the definitions
* from the given XML files.
* @param configLocations array of resource locations
* @param refresh whether to automatically refresh the context,
* loading all bean definitions and creating all singletons.
* Alternatively, call refresh manually after further configuring the context.
* @throws BeansException if context creation failed
* @see #refresh()
*/
public ClassPathXmlApplicationContext(String[] configLocations, boolean refresh) throws BeansException {
this(configLocations, refresh, null);
}

/**
* Create a new ClassPathXmlApplicationContext with the given parent,
* loading the definitions from the given XML files.
* @param configLocations array of resource locations
* @param refresh whether to automatically refresh the context,
* loading all bean definitions and creating all singletons.
* Alternatively, call refresh manually after further configuring the context.
* @param parent the parent context
* @throws BeansException if context creation failed
* @see #refresh()
*/
public ClassPathXmlApplicationContext(String[] configLocations, boolean refresh, ApplicationContext parent)
throws BeansException {

super(parent);
setConfigLocations(configLocations);
if (refresh) {
refresh();
}
}

/**
* Create a new ClassPathXmlApplicationContext, loading the definitions
* from the given XML file and automatically refreshing the context.
* <p>This is a convenience method to load class path resources relative to a
* given Class. For full flexibility, consider using a GenericApplicationContext
* with an XmlBeanDefinitionReader and a ClassPathResource argument.
* @param path relative (or absolute) path within the class path
* @param clazz the class to load resources with (basis for the given paths)
* @throws BeansException if context creation failed
* @see org.springframework.core.io.ClassPathResource#ClassPathResource(String, Class)
* @see org.springframework.context.support.GenericApplicationContext
* @see org.springframework.beans.factory.xml.XmlBeanDefinitionReader
*/
public ClassPathXmlApplicationContext(String path, Class<?> clazz) throws BeansException {
this(new String[] {path}, clazz);
}

/**
* Create a new ClassPathXmlApplicationContext, loading the definitions
* from the given XML files and automatically refreshing the context.
* @param paths array of relative (or absolute) paths within the class path
* @param clazz the class to load resources with (basis for the given paths)
* @throws BeansException if context creation failed
* @see org.springframework.core.io.ClassPathResource#ClassPathResource(String, Class)
* @see org.springframework.context.support.GenericApplicationContext
* @see org.springframework.beans.factory.xml.XmlBeanDefinitionReader
*/
public ClassPathXmlApplicationContext(String[] paths, Class<?> clazz) throws BeansException {
this(paths, clazz, null);
}

/**
* Create a new ClassPathXmlApplicationContext with the given parent,
* loading the definitions from the given XML files and automatically
* refreshing the context.
* @param paths array of relative (or absolute) paths within the class path
* @param clazz the class to load resources with (basis for the given paths)
* @param parent the parent context
* @throws BeansException if context creation failed
* @see org.springframework.core.io.ClassPathResource#ClassPathResource(String, Class)
* @see org.springframework.context.support.GenericApplicationContext
* @see org.springframework.beans.factory.xml.XmlBeanDefinitionReader
*/
public ClassPathXmlApplicationContext(String[] paths, Class<?> clazz, ApplicationContext parent)
throws BeansException {

super(parent);
Assert.notNull(paths, "Path array must not be null");
Assert.notNull(clazz, "Class argument must not be null");
this.configResources = new Resource[paths.length];
for (int i = 0; i < paths.length; i++) {
this.configResources[i] = new ClassPathResource(paths[i], clazz);
}
refresh();
}

@Override
protected Resource[] getConfigResources() {
return this.configResources;
}

}