Spring默认对象创建？

Question

Spring是否读取了任何配置文件，知道是否要创建一些默认的开箱即用实现（HandlerMapping，ViewResolver等）？

Answer 1

是的，DispatcherServlet.properties包中的org.springframework.web.servlet就是你要找的东西。

DispatcherServlet源中的相关代码段：

 /**
  * Name of the class path resource (relative to the DispatcherServlet class)
  * that defines DispatcherServlet's default strategy names.
  */
 private static final String DEFAULT_STRATEGIES_PATH ="DispatcherServlet.properties";

 ....

 static {
    // Load default strategy implementations from properties file.
    // This is currently strictly internal and not meant to be customized
    // by application developers.
    try {
        ClassPathResource resource = new ClassPathResource(DEFAULT_STRATEGIES_PATH, DispatcherServlet.class);
        defaultStrategies = PropertiesLoaderUtils.loadProperties(resource);
    }
    catch (IOException ex) {
        throw new IllegalStateException("Could not load 'DispatcherServlet.properties': " + ex.getMessage());
    }
 }