Having all of your security in one place and defined by web endpoints has a certain neatness to it, especially in smaller projects, or for more global settings however, as projects get larger, it may make more sense to keep the authorization policies near the code being protected, which is what the annotation-based method allows.Īnother advantage that presents over HttpSecurity is the use of SpEL. This means that configuration in HttpSecurity is applied before HttpSecurity is tied to URL endpoints while is tied to controller methods and is actually located within the code adjacent to the controller definitions. In contrast, the assessment happens later, directly before the execution of the controller method. HttpSecurity method rejects the request earlier, in a web request filter, before controller mapping has occurred. The first difference is subtle, but worth mentioning. Differentiate Between Spring Security’s and HttpSecurity In practice, using the annotation on a controller method is very similar to using HttpSecurity pattern matchers on a specific endpoint. If access is not granted, the method is not executed and an HTTP Unauthorized is returned. This annotation contains a Spring Expression Language (SpEL) snippet that is assessed to determine if the request should be authenticated. Method-level security is implemented by placing the annotation on controller methods (actually one of a set of annotations available, but the most commonly used). It is a great place to set global authentication policies. This is where configuration options such as OAuth 2.0, Form Login, and HTTP Basic are exposed. Finer-grained control is possible, however, using pattern matching for endpoints, and the fluent API exposed by the HttpSecurity is quite powerful. The first authentication method is HttpSecurity, which is global and is by default applied to all requests. However, I will present some HttpSecurity code and ideas by way of contrast. The latter will be the main focus of this tutorial. Another is to use the annotation on controller methods, known as method-level security or expression-based security. One method is to create a WebSecurit圜onfigurerAdapter and use the fluent API to override the default settings on the HttpSecurity object. This tutorial will explore two ways to configure authentication and authorization in Spring Boot using Spring Security.
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