1. <a href="#introduction-to-spring-security-login">Introdução ao Login do Spring Security</a> ..........................................................................................................................................1
2. <a href="#common-issues-in-spring-security-login-implementation">Problemas Comuns na Implementação do Login do Spring Security</a> ............................................................................................................................2
2.1. <a href="#ui-issues-fixing-the-login-page">Problemas de UI: Corrigindo a Página de Login</a> ...........................................................................................................................................2
2.2. <a href="#backend-issues-missing-name-attributes-in-form-elements">Problemas de Backend: Atributos 'name' Ausentes em Elementos de Formulário</a> ..................................................................................................................................................3
3. <a href="#implementing-userdetailservice-in-spring-security">Implementando UserDetailsService no Spring Security</a> .........................................................................................................................................4
3.1. <a href="#overview-of-userdetailservice">Visão Geral do UserDetailsService</a> ........................................................................................................................................4
3.2. <a href="#implementing-loaduserbyusername-method">Implementando o Método <strong>loadUserByUsername</strong></a> ........................................................................................................................................5
4. <a href="#handling-granted-authorities-and-roles-in-spring-security">Gerenciando Granted Authorities e Roles no Spring Security</a> ...................................................................................................................................................6
4.1. <a href="#understanding-granted-authority">Compreendendo Granted Authority</a> ........................................................................................................................................6
4.2. <a href="#configuring-granted-authorities">Configurando Granted Authorities</a> ........................................................................................................................................7
5. <a href="#debugging-spring-security-login-errors">Depurando Erros de Login do Spring Security</a> ........................................................................................................................................8
5.1. <a href="#common-errors-and-their-causes">Erros Comuns e Suas Causas</a> ..........................................................................................................................................8
5.2. <a href="#debugging-techniques-in-spring-boot">Técnicas de Depuração no Spring Boot</a> ..........................................................................................................................................9
6. <a href="#testing-the-login-functionality">Testando a Funcionalidade de Login</a> ..................................................................................................................................................10
6.1. <a href="#running-the-application-in-debug-mode">Executando a Aplicação em Modo de Depuração</a> ..........................................................................................................................................10
6.2. <a href="#verifying-successful-login">Verificando o Login Bem-Sucedido</a> ........................................................................................................................................................11
7. <a href="#conclusion-and-best-practices">Conclusão e Melhores Práticas</a> ................................................................................................................................................12