您可以使用PathMatchingResourcePatternResolver
Spring 提供的。
public class SpringResourceLoader {
public static void main(String[] args) throws IOException {
PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
// Ant-style path matching
Resource[] resources = resolver.getResources("/pictures/**");
for (Resource resource : resources) {
System.out.println("resource = " + resource);
InputStream is = resource.getInputStream();
BufferedImage img = ImageIO.read(is);
System.out.println("img.getHeight() = " + img.getHeight());
System.out.println("img.getWidth() = " + img.getWidth());
}
}
}
我没有对退回的东西做任何花哨的事情,Resource
但你明白了。
将此添加到您的 maven 依赖项(如果使用 maven):
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>3.1.2.RELEASE</version>
</dependency>
这将直接在 Eclipse/NetBeans/IntelliJ和已部署的 jar 中工作。
从 IntelliJ 中运行会得到以下输出:
resource = file [C:\Users\maba\Development\stackoverflow\Q12016222\target\classes\pictures\BMW-R1100S-2004-03.jpg]
img.getHeight() = 768
img.getWidth() = 1024
从带有可执行 jar 的命令行运行给我以下输出:
C:\Users\maba\Development\stackoverflow\Q12016222\target>java -jar Q12016222-1.0-SNAPSHOT.jar
resource = class path resource [pictures/BMW-R1100S-2004-03.jpg]
img.getHeight() = 768
img.getWidth() = 1024