Spring Boot + Spring Security – RESTful Web Service with basic Authentication

In this article, I am going to explain you how to implement basic authentication for RESTful web services using Spring Boot and Spring Security. We will need to create a java file with spring security configurations in it, that’s it 🙂

Required Dependency

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-security</artifactId>
</dependency>

Final pom.xml

<project
    xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.java4s</groupId>
    <artifactId>SpringBootSpringSecurityBasicAuth</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.6.RELEASE</version>
    </parent>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
    </dependencies>
    <properties>
        <java.version>1.8</java.version>
    </properties>
</project>

SpringBootApp.java

package com.java4s.app;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

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

SpringSecurityConfig.java

package com.java4s.app.configs;


import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;

@Configuration
public class SpringSecurityConfig extends WebSecurityConfigurerAdapter {

    // Authentication : set user/password details and mention the role
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.inMemoryAuthentication().passwordEncoder(org.springframework.security.crypto.password.NoOpPasswordEncoder.getInstance())
            .withUser("user").password("pass").roles("USER")
            .and()
            .withUser("admin").password("pass").roles("USER", "ADMIN");
    }

    // Authorization : mention which role can access which URL
    protected void configure(HttpSecurity http) throws Exception {
        http.httpBasic().and().authorizeRequests()
            .antMatchers("/userlogin").hasRole("USER")
            .antMatchers("/adminlogin").hasRole("ADMIN")
            .and()
            .csrf().disable().headers().frameOptions().disable();
    }
}

SpringJava4sController.java

package com.java4s.app.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class SpringJava4sController {

    @RequestMapping("/userlogin")
    public String userValidation() {
        return "User: Successfully logged in!";

    }

    @RequestMapping("/adminlogin")
    public String adminValidation() {
        return "Admin: Successfully logged in!";

    }

}

Now run the application, if you hit /springbootwithsecurity/userlogin you should provide user/pass as credentials and for /springbootwithsecurity/adminlogin admin/pass, give a try 😉 I am not going to explain the SpringSecurityConfig.java as its easily understandable.

Output

In the next article, I will explain how to implement the Authentication using database.

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::. About the Author .::
		Sivateja Kandula - Java/J2EE Full Stack Developer Founder of Java4s - Get It Yourself, A popular Java/J2EE Programming Blog, Love Java and UI frameworks. You can sign-up for the Email Newsletter for your daily dose of Java tutorials.