In -depth analysis of the working principle of the Jakarta security framework

In -depth analysis of the working principle of the Jakarta security framework Brief introduction Jakarta security framework is a set of open source tools for application security functions.It provides a series of APIs, libraries, and configuration options so that developers can easily add identity verification, authorization and access control to applications.This article will in -depth analysis of the working principle of the Jakarta security framework, and explain from the construction block, workflow, and related programming code and configuration. Build block The construction block of the Jakarta security framework includes the following main components: 1. Jaas (Java Authentics and Authorization Services): JaaS is a standard authentication and authorization framework provided by Java. The identity verification and authorization function is achieved by configuring the loginmodule and the Policy class. 2. Servlet security: Jakarta security framework combined with the SERVLET standard definition of security mechanisms, providing the ability to verify and access control.It intercepts the request through a filter and processes according to the security rules of the configuration. 3. SecurityManager: SecurityManager is a Java security manager that is used to manage security strategies in applications.It defines authorization by programming or configuration files, as well as authorization methods and permits. work process The following is the basic workflow of the Jakarta security framework: 1. User access application: Users access the application through the browser or client. 2. Filter interception request: The filter configured in the application can intercept all requests that enter.The Jakarta security framework uses a filter to check whether the request requires authentication or authorization, and processed according to the corresponding configuration. 3. Authentication: If the request needs identity verification, the filter will redirect the request to the authentication mechanism.Developers can choose to use different authentication mechanisms including form verification, basic identity verification, OAUTH, etc. 4. Security verification: After the authentication is successful, the framework will use the corresponding authentication credentials to create a security context to use in subsequent authorization and access control. 5. Authorization and access control: According to the security strategy defined by the application, the framework will check whether the user has the permissions of the request operation.This includes authorization and access control to resources, roles, and permissions. Programming code and configuration Below is a sample code fragment with the Jakarta security framework: 1. Configure web.xml file: <security-constraint> <web-resource-collection> <web-resource-name>Restricted Area</web-resource-name> <url-pattern>/secure/*</url-pattern> </web-resource-collection> <auth-constraint> <role-name>admin</role-name> </auth-constraint> </security-constraint> <login-config> <auth-method>FORM</auth-method> <form-login-config> <form-login-page>/login</form-login-page> <form-error-page>/loginError</form-error-page> </form-login-config> </login-config> <security-role> <role-name>admin</role-name> </security-role> The above code is configured with security constraints, and the resources need to be accessed under the "/Secure/*" path.At the same time, the use of the form to be available is specified, and the login page and the login error page are specified. 2. Realize custom LoginModule and Policy class: public class CustomLoginModule implements LoginModule { // Implement identity verification logic } public class CustomPolicy extends Policy { // Implement authorization logic } Developers can customize loginmodule and Policy classes according to the needs of the application to provide custom identity verification and authorization functions. Summarize This article deeply analyzes the working principle of the Jakarta security framework, and introduces its construction block, workflow, and related programming code and configuration.By using the Jakarta security framework, developers can easily add identity verification, authorization, and access control to the application to improve the security and reliability of the application.