Spring Boot Web MySQL Hibernate JPA JDBC

Author: Urunov

Part-1 Spring Boot Basic Fund Projects/SpringBootSources/SpringRestAPI/pom.xml

@@ -43,6 +43,28 @@
             <version>4.3.8.RELEASE</version>
         </dependency>
 
+        <!-- https://mvnrepository.com/artifact/javax.validation/validation-api -->
+        <dependency>
+            <groupId>javax.validation</groupId>
+            <artifactId>validation-api</artifactId>
+            <version>2.0.1.Final</version>
+        </dependency>
+        <!-- https://mvnrepository.com/artifact/org.apache.tomcat/tomcat-jasper -->
+        <dependency>
+            <groupId>org.apache.tomcat</groupId>
+            <artifactId>tomcat-jasper</artifactId>
+            <version>10.0.0-M3</version>
+        </dependency>
+        <dependency>
+
+            <groupId>mysql</groupId>
+
+            <artifactId>mysql-connector-java</artifactId>
+
+            <scope>runtime</scope>
+
+        </dependency>
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>

Part-1 Spring Boot Basic Fund Projects/SpringBootSources/SpringRestAPI/src/main/java/spring/boot/EmployeeController.java

@@ -0,0 +1,74 @@
+package spring.boot.controller;
+
+import jdk.management.resource.ResourceRequestDeniedException;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+import spring.boot.exception.ResourceNotFoundException;
+import spring.boot.model.Employee;
+import spring.boot.repository.EmployeeRepository;
+
+import javax.validation.Valid;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * @Created 25 / 03 / 2020 - 5:21 PM
+ * @project SpringRestAPI
+ * @Author Hamdamboy
+ */
+@RestController
+@RequestMapping("/api/v1")
+public class EmployeeController {
+    //
+    @Autowired
+    private EmployeeRepository employeeRepository;
+
+    @GetMapping
+    public String Hello(){
+        return "hello";
+    }
+
+    @GetMapping("/employees")
+    public List<Employee> getAllEmployees() {
+        return employeeRepository.findAll();
+    }
+
+    @GetMapping("/employee/{id}")
+    public ResponseEntity<Employee> getEmployeeById(@PathVariable(value = "id") Long employeeId) throws ResourceNotFoundException {
+        Employee employee = employeeRepository.findById(employeeId)
+                .orElseThrow(()-> new ResourceNotFoundException("Employee not found for this id::"  + employeeId));
+        return ResponseEntity.ok().body(employee);
+
+    }
+
+    @PostMapping("/employees")
+    public Employee createEmployee(@Valid @RequestBody Employee employee) {
+        return employeeRepository.save(employee);
+    }
+
+    @PutMapping("/employees/{id}")
+    public ResponseEntity<Employee> updateEmployee(@PathVariable(value = "id") Long empoyeedId,
+                                                   @Valid @RequestBody Employee employeeDetails) throws ResourceNotFoundException {
+        Employee employee = employeeRepository.findById(empoyeedId)
+                .orElseThrow(()-> new ResourceNotFoundException("Employee not found for this id::" + empoyeedId));
+        employee.setEmailId(employeeDetails.getEmailId());
+        employee.setLastName(employeeDetails.getLastName());
+        employee.setFirstName(employeeDetails.getFirstName());
+        final Employee updateEmployee = employeeRepository.save(employee);
+        return ResponseEntity.ok(updateEmployee);
+    }
+
+    @DeleteMapping("/employees/{id}")
+    public Map<String, Boolean> deleteEmployee(@PathVariable(value = "id") Long employeeId) throws ResourceNotFoundException {
+        Employee employee = employeeRepository.findById(employeeId)
+                .orElseThrow(()-> new ResourceRequestDeniedException("Employee not found far this id::" + employeeId));
+
+        employeeRepository.delete(employee);
+        Map<String, Boolean> response = new HashMap<>();
+        response.put("deleted", Boolean.TRUE);
+
+        return response;
+    }
+}

Part-1 Spring Boot Basic Fund Projects/SpringBootSources/SpringRestAPI/src/main/java/spring/boot/SpringRestClient.java

@@ -0,0 +1,35 @@
+package spring.boot.exception;
+
+import java.util.Date;
+
+/**
+ * @Created 26 / 03 / 2020 - 2:30 PM
+ * @project SpringRestAPI
+ * @Author Hamdamboy
+ */
+public class ErrorDetails {
+    //
+    private Date timestamp;
+    private String message;
+    private String details;
+
+
+    public ErrorDetails(Date timestamp, String message, String details) {
+        super();
+        this.timestamp = timestamp;
+        this.message = message;
+        this.details = details;
+    }
+
+    public Date getTimestamp() {
+        return timestamp;
+    }
+
+    public String getMessage(){
+        return message;
+    }
+
+    public String getDetails(){
+        return details;
+    }
+}

Part-1 Spring Boot Basic Fund Projects/SpringBootSources/SpringRestAPI/src/main/java/spring/boot/controller/EmployeeController.java

@@ -0,0 +1,31 @@
+package spring.boot.exception;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.context.request.WebRequest;
+
+import java.util.Date;
+
+/**
+ * @Created 26 / 03 / 2020 - 2:32 PM
+ * @project SpringRestAPI
+ * @Author Hamdamboy
+ */
+
+@ControllerAdvice
+public class GlobalExceptionHandler {
+    //
+    @ExceptionHandler(ResourceNotFoundException.class)
+    public ResponseEntity<?> resourceNotFoundException(ResourceNotFoundException ex, WebRequest request) {
+        ErrorDetails errorDetails = new ErrorDetails(new Date(), ex.getMessage(), request.getDescription(false));
+        return new ResponseEntity<>(errorDetails, HttpStatus.NOT_FOUND);
+    }
+
+    @ExceptionHandler(Exception.class)
+    public ResponseEntity<?> globalExceptionHandler(Exception ex, WebRequest request) {
+        ErrorDetails errorDetails = new ErrorDetails(new Date(), ex.getMessage(), request.getDescription(false));
+        return new ResponseEntity<>(errorDetails, HttpStatus.INTERNAL_SERVER_ERROR);
+    }
+}

Part-1 Spring Boot Basic Fund Projects/SpringBootSources/SpringRestAPI/src/main/java/spring/boot/exception/ErrorDetails.java

@@ -0,0 +1,20 @@
+package spring.boot.exception;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+/**
+ * @Created 26 / 03 / 2020 - 2:17 PM
+ * @project SpringRestAPI
+ * @Author Hamdamboy
+ */
+
+@ResponseStatus(value = HttpStatus.NOT_FOUND)
+public class ResourceNotFoundException extends Exception{
+
+    private static final long serialVersionUID = 1L;
+
+    public ResourceNotFoundException(String message) {
+        super(message);
+    }
+}

Part-1 Spring Boot Basic Fund Projects/SpringBootSources/SpringRestAPI/src/main/java/spring/boot/exception/GlobalExceptionHandler.java

@@ -0,0 +1,97 @@
+package spring.boot.model;
+
+import javax.persistence.Column;
+
+import javax.persistence.Entity;
+
+import javax.persistence.GeneratedValue;
+
+import javax.persistence.GenerationType;
+
+import javax.persistence.Id;
+
+import javax.persistence.Table;
+/**
+ * @Created 26 / 03 / 2020 - 12:06 PM
+ * @project SpringRestAPI
+ * @Author Hamdamboy
+ */
+@Entity
+@Table(name = "restapi")
+public class Employee {
+    //
+    private long id;
+    private String firstName;
+    private String lastName;
+    private String emailId;
+
+    public Employee() {
+    }
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    public long getId() {
+        return id;
+    }
+
+    public void setId(long id) {
+        this.id = id;
+    }
+
+    @Column(name = "first_name", nullable = false)
+
+    public String getFirstName() {
+
+        return firstName;
+
+    }
+
+    public void setFirstName(String firstName) {
+
+        this.firstName = firstName;
+
+    }
+
+
+
+    @Column(name = "last_name", nullable = false)
+
+    public String getLastName() {
+
+        return lastName;
+
+    }
+
+    public void setLastName(String lastName) {
+
+        this.lastName = lastName;
+
+    }
+
+
+
+    @Column(name = "email_address", nullable = false)
+
+    public String getEmailId() {
+
+        return emailId;
+
+    }
+
+    public void setEmailId(String emailId) {
+
+        this.emailId = emailId;
+
+    }
+
+
+    @Override
+    public String toString() {
+        return "Employee{" +
+                "id=" + id +
+                ", firstName='" + firstName + '\'' +
+                ", lastName='" + lastName + '\'' +
+                ", emailId='" + emailId + '\'' +
+                '}';
+    }
+}

Part-1 Spring Boot Basic Fund Projects/SpringBootSources/SpringRestAPI/src/main/java/spring/boot/exception/ResourceNotFoundException.java

@@ -1,10 +1,16 @@
 package spring.boot.repository;
 
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+import spring.boot.model.Employee;
+
 /**
  * @Created 25 / 03 / 2020 - 5:24 PM
  * @project SpringRestAPI
  * @Author Hamdamboy
  */
-public class EmployeeRepository {
+
+@Repository
+public interface EmployeeRepository extends JpaRepository<Employee, Long> {
 
 }

Part-1 Spring Boot Basic Fund Projects/SpringBootSources/SpringRestAPI/src/main/java/spring/boot/model/Employee.java

@@ -1 +1,15 @@
 
+## Spring DATASOURCE (DataSource AutoConfiguration & DataSourceProperties)
+
+spring.datasource.url = jdbc:mysql://localhost:3306/management?useSSL=false
+
+spring.datasource.username=root
+spring.datasource.password=posilka2020
+
+## Hibernate Properties
+#The SQL dialect makes Hibernate generate better SQL the chosen database
+
+spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5InnoDBDialect
+
+#Hibernate dll auto (create, create-drop, validate, update)
+spring.jpa.hibernate.ddl-auto=update