spring源码学习--FileSystemXmlApplicationContext（二）

在上一篇博客​​ Spring源码学习--ClassPathXmlApplicationContext（一）​​我们简单介绍了ClassPathXmlApplicationContext，接下来我们介绍一下FileSystemXmlApplicationContext

ApplicationContext应用上下文体系如下：

FileSystemXmlApplicationContext的源码如下：

/**
 * 并没有太多具体的操作，很多初始化操作都在其父类中
 */
public class FileSystemXmlApplicationContext extends AbstractXmlApplicationContext {

  public FileSystemXmlApplicationContext() {
  }
  
  public FileSystemXmlApplicationContext(ApplicationContext parent) {
    super(parent);
  }
  public FileSystemXmlApplicationContext(String configLocation) throws BeansException {
    this(new String[] {configLocation}, true, null);
  }
  public FileSystemXmlApplicationContext(String... configLocations) throws BeansException {
    this(configLocations, true, null);
  }
  public FileSystemXmlApplicationContext(String[] configLocations, ApplicationContext parent) throws BeansException {
    this(configLocations, true, parent);
  }
  public FileSystemXmlApplicationContext(String[] configLocations, boolean refresh) throws BeansException {
    this(configLocations, refresh, null);
  }
  public FileSystemXmlApplicationContext(String[] configLocations, boolean refresh, ApplicationContext parent)
      throws BeansException {
    
    //调用父类的构造函数
    super(parent);
    //设置配置文件的地址，如application.xml
    setConfigLocations(configLocations);
    if (refresh) {
      //刷新容器，其实就是重新初始化容器
      refresh();
    }
  }
  @Override
  protected Resource getResourceByPath(String path) {
    if (path != null && path.startsWith("/")) {
      path = path.substring(1);
    }
    return new FileSystemResource(path);
  }
}