Getresourceasstream Path Problem

1. Class. getresourceasstream (string path ):
When path does not start with '/', resources are retrieved from the package where the class is located by default. If path starts with '/', it is obtained from the root of classpath (SRC root directory.
It only constructs an absolute path through path, and finally gets resources by classloader.

2. Class. getclassloader. getresourceasstream (string path ):
By default, it is obtained from the root of the classpath. The path cannot start with '/' and is finally obtained by the classloader.

3. servletcontext. getresourceasstream (string path ):
By default, resources are retrieved from the webapp root directory. It does not matter whether the path in Tomcat starts with '/'. Of course, this is related to the specific container implementation.

Getresourceasstream Path Problem