Learn Spring-security - 1 Code Examples & CST Typing Practice Test

Spring Security is a comprehensive, customizable authentication and access-control framework for Java applications, particularly for securing Spring-based applications.

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Spring Security Simple REST API

Learn SPRING-SECURITY with Real Code Examples

Updated Nov 27, 2025

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Code Sample Descriptions

Spring Security Simple REST API

@SpringBootApplication
public class DemoApplication {
    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }
}

// SecurityConfig.java
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.inMemoryAuthentication()
            .withUser("user").password("{noop}password").roles("USER")
            .and()
            .withUser("admin").password("{noop}admin").roles("ADMIN");
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.csrf().disable()
            .authorizeRequests()
            .antMatchers("/admin/**").hasRole("ADMIN")
            .anyRequest().authenticated()
            .and().httpBasic();
    }
}

// TodoController.java
@RestController
@RequestMapping("/todos")
public class TodoController {
    @GetMapping
    public List<String> getTodos() {
        return Arrays.asList("Task 1", "Task 2");
    }
}

Demonstrates a simple Spring Boot REST API with basic authentication and role-based access control using Spring Security.

Let’s Try →

Frequently Asked Questions about Spring-security

What is Spring-security?

Spring Security is a comprehensive, customizable authentication and access-control framework for Java applications, particularly for securing Spring-based applications.

What are the primary use cases for Spring-security?

Authentication and user login. Authorization and role-based access control. API security with JWT or OAuth2. Protecting web applications from CSRF, XSS, and other attacks. Integration with identity providers like LDAP or OAuth2

What are the strengths of Spring-security?

Highly configurable and extensible. Strong integration with Spring ecosystem. Supports modern authentication standards. Mature and widely adopted in enterprise. Robust protection against common vulnerabilities

What are the limitations of Spring-security?

Steep learning curve for beginners. Complex configuration for advanced use cases. Can be verbose for simple applications. Overhead for small or lightweight apps. Requires understanding of Spring Core concepts

How can I practice Spring-security typing speed?

CodeSpeedTest offers 1+ real Spring-security code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.

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Code Sample Descriptions

Spring Security Simple REST API

@SpringBootApplication
public class DemoApplication {
    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }
}

// SecurityConfig.java
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.inMemoryAuthentication()
            .withUser("user").password("{noop}password").roles("USER")
            .and()
            .withUser("admin").password("{noop}admin").roles("ADMIN");
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.csrf().disable()
            .authorizeRequests()
            .antMatchers("/admin/**").hasRole("ADMIN")
            .anyRequest().authenticated()
            .and().httpBasic();
    }
}

// TodoController.java
@RestController
@RequestMapping("/todos")
public class TodoController {
    @GetMapping
    public List<String> getTodos() {
        return Arrays.asList("Task 1", "Task 2");
    }
}

Demonstrates a simple Spring Boot REST API with basic authentication and role-based access control using Spring Security.

Let’s Try →

Frequently Asked Questions about Spring-security

What is Spring-security?

Spring Security is a comprehensive, customizable authentication and access-control framework for Java applications, particularly for securing Spring-based applications.

What are the primary use cases for Spring-security?

What are the strengths of Spring-security?

What are the limitations of Spring-security?

How can I practice Spring-security typing speed?

CodeSpeedTest offers 1+ real Spring-security code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.