BAEL-2413 - Integrating Spring Boot with HSQLDB (#5891)

* Initial Commit

* Update source file location

* Update CustomerControllerUnitTest.java

* Update CustomerControllerUnitTest.java

* Update CustomerControllerUnitTest.java

* Update source files

* Update CustomerController.java

* Update CustomerController.java

* Update CustomerControllerUnitTest.java

* Update CustomerControllerUnitTest.java

* Update CustomerControllerUnitTest.java

* Update index.html

* Update persistence-modules/spring-boot-persistence/src/main/java/com/baeldung/springboothsqldb/application/controllers/CustomerController.java

Co-Authored-By: alejandrogervasio <alejandro.gervasio@gmail.com>

* Update CustomerController.java

* Update CustomerControllerUnitTest.java

* Update CustomerController.java

* Update CustomerControllerUnitTest.java

* Update CustomerControllerUnitTest.java

persistence-modules/spring-boot-persistence/src/main/java/com/baeldung/springboothsqldb/application/Application.java

@@ -0,0 +1,12 @@
+package com.baeldung.springboothsqldb.application;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class Application {
+    
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+}

persistence-modules/spring-boot-persistence/src/main/java/com/baeldung/springboothsqldb/application/controllers/CustomerController.java

@@ -0,0 +1,33 @@
+package com.baeldung.springboothsqldb.application.controllers;
+
+import com.baeldung.springboothsqldb.application.entities.Customer;
+import com.baeldung.springboothsqldb.application.repositories.CustomerRepository;
+import java.util.List;
+import org.springframework.beans.factory.annotation.Autowired;
+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.ResponseBody;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class CustomerController {
+    
+    private final CustomerRepository customerRepository;
+    
+    @Autowired
+    public CustomerController(CustomerRepository customerRepository) {
+        this.customerRepository = customerRepository;
+    }
+    
+    @PostMapping("/customers")
+    public Customer addCustomer(@RequestBody Customer customer) {
+        customerRepository.save(customer);
+        return customer;
+    }
+    
+    @GetMapping("/customers")
+    public List<Customer> getCustomers() {
+        return (List<Customer>) customerRepository.findAll();
+    }
+}

persistence-modules/spring-boot-persistence/src/main/java/com/baeldung/springboothsqldb/application/entities/Customer.java

@@ -0,0 +1,55 @@
+package com.baeldung.springboothsqldb.application.entities;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "customers")
+public class Customer {
+    
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private long id;
+    
+    private String name;
+    private String email;
+    
+    public Customer() {}
+    
+    public Customer(String name, String email) {
+        this.name = name;
+        this.email = email;
+    }
+    
+    public void setId(long id) {
+        this.id = id;
+    }
+    
+    public long getId() {
+        return id;
+    }
+    
+    public void setName(String name) {
+        this.name = name;
+    }
+    
+    public String getName() {
+        return name;
+    }
+    
+    public void setEmail(String email) {
+        this.email = email;
+    }
+    
+    public String getEmail() {
+        return email;
+    }
+
+    @Override
+    public String toString() {
+        return "Customer{" + "id=" + id + ", name=" + name + ", email=" + email + '}';
+    }
+}

persistence-modules/spring-boot-persistence/src/main/java/com/baeldung/springboothsqldb/application/repositories/CustomerRepository.java

@@ -0,0 +1,8 @@
+package com.baeldung.springboothsqldb.application.repositories;
+
+import com.baeldung.springboothsqldb.application.entities.Customer;
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface CustomerRepository extends CrudRepository<Customer, Long> {}

persistence-modules/spring-boot-persistence/src/main/resources/application.properties

@@ -1,16 +1,5 @@
-spring.datasource.tomcat.initial-size=15
-spring.datasource.tomcat.max-wait=20000
-spring.datasource.tomcat.max-active=50
-spring.datasource.tomcat.max-idle=15
-spring.datasource.tomcat.min-idle=8
-spring.datasource.tomcat.default-auto-commit=true   
-spring.datasource.url=jdbc:h2:mem:test
-spring.datasource.username=root
-spring.datasource.password=
-spring.datasource.driver-class-name=org.h2.Driver
-
-spring.jpa.show-sql=false
-spring.jpa.hibernate.ddl-auto=update
-spring.jpa.hibernate.naming-strategy=org.hibernate.cfg.ImprovedNamingStrategy
-spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.H2Dialect
-spring.jpa.properties.hibernate.id.new_generator_mappings=false
+spring.datasource.driver-class-name = org.hsqldb.jdbc.JDBCDriver
+spring.datasource.url = jdbc:hsqldb:mem:test;DB_CLOSE_DELAY=-1
+spring.datasource.username = sa
+spring.datasource.password =
+spring.jpa.hibernate.ddl-auto = create

persistence-modules/spring-boot-persistence/src/main/resources/templates/index.html

@@ -40,4 +40,4 @@
             </div>
         </div>
     </body>
-</html>
+</html>

persistence-modules/spring-boot-persistence/src/test/java/com/baeldung/springboothsqldb/application/tests/CustomerControllerUnitTest.java

@@ -0,0 +1,61 @@
+package com.baeldung.springboothsqldb.application.tests;
+
+import com.baeldung.springboothsqldb.application.entities.Customer;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectWriter;
+import com.fasterxml.jackson.databind.SerializationFeature;
+import java.nio.charset.Charset;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.http.MediaType;
+import org.springframework.test.context.junit4.SpringRunner;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
+import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+@AutoConfigureMockMvc
+public class CustomerControllerUnitTest {
+
+    private static MediaType MEDIA_TYPE_JSON;
+
+    @Autowired
+    private MockMvc mockMvc;
+
+    @Before
+    public void setUpJsonMediaType() {
+        MEDIA_TYPE_JSON = new MediaType(MediaType.APPLICATION_JSON.getType(), MediaType.APPLICATION_JSON.getSubtype(), Charset.forName("utf8"));
+
+    }
+
+    @Test
+    public void whenPostHttpRequesttoCustomers_thenStatusOK() throws Exception {
+        Customer customer = new Customer("John", "john@domain.com");
+        ObjectMapper mapper = new ObjectMapper();
+        mapper.configure(SerializationFeature.WRAP_ROOT_VALUE, false);
+        ObjectWriter objectWriter = mapper.writer().withDefaultPrettyPrinter();
+        String requestJson = objectWriter.writeValueAsString(customer);
+        
+        this.mockMvc
+                .perform(MockMvcRequestBuilders.post("/customers")
+                        .contentType(MEDIA_TYPE_JSON)
+                        .content(requestJson)
+                )
+                
+                .andExpect(MockMvcResultMatchers.status().isOk());
+    }
+    
+    @Test
+    public void whenGetHttpRequesttoCustomers_thenStatusOK() throws Exception {
+        this.mockMvc
+                .perform(MockMvcRequestBuilders.get("/customers"))
+                
+                .andExpect(MockMvcResultMatchers.content().contentType(MEDIA_TYPE_JSON))
+                .andExpect(MockMvcResultMatchers.status().isOk());
+    }
+}