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1.	What is Spring Security?
Answer» Anything on the web like web applications is exposed to the open world of the Internet, they are vulnerable to security threats. Only authorized personnel should have ACCESS to Web pages, files, and other classified resources. There are often several layers of security, such as FIREWALLS, proxy servers, JVM security, etc., but, if access is to be controlled, application-level security should also be applied. Hence, Spring Security, a part of the Spring Framework, provides a means for applying a layer of security to Java applications. Spring Security is essentially just a bunch of servlet filters that enable Java applications to include authentication and authorization functionality. It is one of the most powerful, and highly customizable access-control frameworks (security framework) that provide authentication, authorization, and other security features for Java EE (Enterprise edition) based enterprise applications. The REAL power of Spring Security lies in its ability to be extended to meet custom NEEDS. Its main responsibility is to AUTHENTICATE and authorize incoming requests for accessing any resource, including rest API endpoints, MVC (Model-View-Controller) URLs, static resources, etc.

What is Spring Security?

Answer»

Anything on the web like web applications is exposed to the open world of the Internet, they are vulnerable to security threats. Only authorized personnel should have ACCESS to Web pages, files, and other classified resources. There are often several layers of security, such as FIREWALLS, proxy servers, JVM security, etc., but, if access is to be controlled, application-level security should also be applied. Hence, Spring Security, a part of the Spring Framework, provides a means for applying a layer of security to Java applications.

Spring Security is essentially just a bunch of servlet filters that enable Java applications to include authentication and authorization functionality. It is one of the most powerful, and highly customizable access-control frameworks (security framework) that provide authentication, authorization, and other security features for Java EE (Enterprise edition) based enterprise applications. The REAL power of Spring Security lies in its ability to be extended to meet custom NEEDS. Its main responsibility is to AUTHENTICATE and authorize incoming requests for accessing any resource, including rest API endpoints, MVC (Model-View-Controller) URLs, static resources, etc.

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