java - Spring 通配符不起作用

Question

我正在使用 maven，并将我的配置文件作为“singleton-config.xml”包含在 src/main/resources 下。

当我创建上下文时

    ApplicationContext context = new ClassPathXmlApplicationContext("classpath:singleton-config.xml");

它工作正常，但是当我使用通配符时

    ApplicationContext context = new ClassPathXmlApplicationContext("classpath:singleton-*.xml");

它给出了异常

Exception in thread "main" org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'singleton' is defined.

谢谢

Answer 1

在类路径后使用通配符(“classpath*”)

ApplicationContext context = new ClassPathXmlApplicationContext("classpath*:singleton-*.xml");

说明

The Classpath*: portability classpath*: prefix

When constructing an XML-based application context, a location string may use the special classpath*: prefix:

ApplicationContext ctx =
    new ClassPathXmlApplicationContext("classpath*:conf/appContext.xml");

This special prefix specifies that all classpath resources that match the given name must be obtained (internally, this essentially happens via a ClassLoader.getResources(…​) call), and then merged to form the final application context definition.

参见Wildcards in application context constructor resource paths了解更多信息。