Building a web application with Spring Boot and Angular (#6396)

* Initial Commit

* Update pom.xml

spring-boot-angular/src/main/java/com/baeldung/application/Application.java

@@ -0,0 +1,28 @@
+package com.baeldung.application;
+
+import com.baeldung.application.entities.User;
+import com.baeldung.application.repositories.UserRepository;
+import java.util.stream.Stream;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+
+@SpringBootApplication
+public class Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+
+    @Bean
+    CommandLineRunner init(UserRepository userRepository) {
+        return args -> {
+            Stream.of("John", "Julie", "Jennifer", "Helen", "Rachel").forEach(name -> {
+                User user = new User(name, name.toLowerCase() + "@domain.com");
+                userRepository.save(user);
+            });
+            userRepository.findAll().forEach(System.out::println);
+        };
+    }
+}

spring-boot-angular/src/main/java/com/baeldung/application/controllers/UserController.java

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+package com.baeldung.application.controllers;
+
+import com.application.entities.User;
+import com.baeldung.application.repositories.UserRepository;
+import java.util.List;
+import org.springframework.web.bind.annotation.CrossOrigin;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@CrossOrigin(origins = "http://localhost:4200")
+public class UserController {
+
+    private final UserRepository userRepository;
+
+    public UserController(UserRepository userRepository) {
+        this.userRepository = userRepository;
+    }
+
+    @GetMapping("/users")
+    public List<User> getUsers() {
+        return (List<User>) userRepository.findAll();
+    }
+
+    @PostMapping("/users")
+    void addUser(@RequestBody User user) {
+        userRepository.save(user);
+    }
+}

spring-boot-angular/src/main/java/com/baeldung/application/entities/User.java

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+package com.baeldung.application.entities;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+
+@Entity
+public class User {
+    
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private long id;
+    private final String name;
+    private final String email;
+    
+    public User() {
+        this.name = "";
+        this.email = "";
+    }
+    
+    public User(String name, String email) {
+        this.name = name;
+        this.email = email;
+    }
+
+    public long getId() {
+        return id;
+    }
+    
+    public String getName() {
+        return name;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+    
+    @Override
+    public String toString() {
+        return "User{" + "id=" + id + ", name=" + name + ", email=" + email + '}';
+    }
+}

spring-boot-angular/src/main/java/com/baeldung/application/repositories/UserRepository.java

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+package com.baeldung.application.repositories;
+
+import com.baeldung.application.entities.User;
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.stereotype.Repository;
+import org.springframework.web.bind.annotation.CrossOrigin;
+
+@Repository
+@CrossOrigin(origins = "http://localhost:4200")
+public interface UserRepository extends CrudRepository<User, Long>{}