Developing a Spring Boot application can be a daunting task. There are many moving parts and it can be difficult to know where to start. This is where Spring Boot starter project templates come in.
A starter project template is a pre-configured Spring Boot application that you can use as a starting point for your own application. These templates can be a great way to get up and running quickly with a minimum of fuss.
In this article, we will take a look at some of the most popular starter project templates and see how they can help you get your Spring Boot application off the ground.
The Spring Boot Web Starter is the most popular starter project template. It provides everything you need to get a basic Spring Boot web application up and running.
The Web Starter includes the following dependencies:
It also includes the following key features:
Getting started with the Web Starter is simple. You can create a new project using the Spring Initializr and selecting the Web Starter from the list of starters.
Once you have your project set up, you can add a controller to handle requests to your application. For example, the following controller would map requests to the /
path to a Thymeleaf template named index.html
:
@Controller
public class IndexController {
@RequestMapping("/")
public String index() {
return "index";
}
}
You can then add your index.html
template to the src/main/resources/templates
directory. The Web Starter will automatically configure Thymeleaf and you will be able to access your template at http://localhost:8080/
.
The Spring Boot Data JPA Starter is another popular starter project template. It provides everything you need to get started with Spring Data JPA.
The Data JPA Starter includes the following dependencies:
It also includes the following key features:
Getting started with the Data JPA Starter is just as simple as the Web Starter. You can create a new project using the Spring Initializr and selecting the Data JPA Starter from the list of starters.
Once you have your project set up, you can add a JPA entity to represent your data. For example, the following entity represents a user:
@Entity
public class User {
@Id
@GeneratedValue
private Long id;
private String name;
private String email;
// Getters and setters...
}
You can then add a repository interface to access your data. The following repository would provide methods for finding users by their id or email:
public interface UserRepository extends JpaRepository<User, Long> {
User findById(Long id);
User findByEmail(String email);
}
Spring Data JPA will automatically implement this interface for you. You can then inject the repository into your controllers and use it to access your data.
The Spring Boot Security Starter is a great starting point for applications that need to provide authentication and authorization.
The Security Starter includes the following dependencies:
It also includes the following key features:
Getting started with the Security Starter is just as simple as the other starters. You can create a new project using the Spring Initializr and selecting the Security Starter from the list of starters.
Once you have your project set up, you can add a security configuration to your application. For example, the following configuration would secure all URLs with the /admin
path:
@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http
.authorizeRequests()
.antMatchers("/admin/**").hasRole("ADMIN")
.anyRequest().permitAll()
.and()
.formLogin()
.loginPage("/login")
.permitAll();
}
}
This configuration would secure all URLs with the /admin
path and require the user to be authenticated with the ADMIN
role. It would also provide a login page at /login
that would allow users to authenticate.
The Spring Boot Actuator Starter is a great starting point for applications that need to provide monitoring and management capabilities.
The Actuator Starter includes the following dependencies:
It also includes the following key features:
Getting started with the Actuator Starter is just as simple as the other starters. You can create a new project using the Spring Initializr and selecting the Actuator Starter from the list of starters.
Once you have your project set up, you can add actuator endpoints to your application. For example, the following configuration would enable the info
and health
endpoints:
@Configuration
@EnableWebSecurity
public class ActuatorConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http
.authorizeRequests()
.antMatchers("/actuator/**").permitAll()
.anyRequest().authenticated()
.and()
.httpBasic();
}
}
This configuration would enable the info
and health
endpoints. These endpoints provide information about the application and its health.
Starter project templates are a great way to get up and running quickly with a minimum of fuss. They can provide a great starting point for your application and can save you a lot of time and effort.
In this article, we have looked at some of the most popular starter project templates and seen how they can help you get your Spring Boot application off the ground.