Spring Boot is an open-source Java-based framework that provides a streamlined and opinionated approach to building enterprise-grade applications quickly and easily. It is built on top of the popular Spring Framework and provides a range of features and capabilities that make it easier to create standalone, production-ready Spring-based applications. Introduction to Spring Boot
Spring Security
Spring Security is a powerful and highly customizable authentication and authorization framework that is used to secure Java-based applications. It is built on top of the Spring Framework and provides a range of features and capabilities that make it easy to implement robust security controls in your application.
Spring Security provides a range of security features including authentication, authorization, access control, encryption, and more. It supports a range of authentication mechanisms including form-based login, basic authentication, and OAuth 2.0. It also provides a range of security filters and interceptors that can be used to control access to resources and endpoints in your application.
Spring Security is highly configurable and can be easily customized to suit the needs of your application. It also integrates well with other Spring Framework components, making it easy to implement security controls across your entire application stack.
Overall, Spring Security is a powerful and flexible security framework that provides a range of features and capabilities to secure your Java-based applications. It is widely used in the Java development community and is a popular choice for securing enterprise-grade applications.
Here is a basic example of how to configure Spring Security in a Spring Boot application:
Add Spring Security dependency to the pom.xml file:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>2. Configure Spring Security by creating a SecurityConfig class that extends WebSecurityConfigurerAdapter:
@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeRequests()
.antMatchers("/", "/home").permitAll()
.anyRequest().authenticated()
.and()
.formLogin()
.loginPage("/login")
.permitAll()
.and()
.logout()
.permitAll();
}
@Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
auth.inMemoryAuthentication()
.withUser("user").password("{noop}password").roles("USER")
.and()
.withUser("admin").password("{noop}password").roles("ADMIN");
}
}In the above code, we are permitting access to the home page and login page, but requiring authentication for all other requests. We are also defining two users, one with the USER role and another with the ADMIN role, both with the same password "password".
3. Define a login page in your application:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Login Page</title>
</head>
<body>
<h2>Login Page</h2>
<form action="/login" method="post">
<label for="username">Username:</label>
<input type="text" id="username" name="username"><br><br>
<label for="password">Password:</label>
<input type="password" id="password" name="password"><br><br>
<button type="submit">Submit</button>
</form>
</body>
</html>Run the application and try to access the secure pages. You should be redirected to the login page and prompted to authenticate.
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