Merhabalar hassas ruhlar ve diğerleri 🙂

Bu yazıda Spring Boot ile basit Crud işlemleri nasıl yapılır onu anlatmaya çalışacağım.

Örnek projenin kodlarına https://github.com/zeynepsit/spring-boot-thymeleaf-uygulama adresinden ulaşabilirsiniz.

Proje oluşturmak için http://start.spring.io adresini ziyaret edebilirsiniz.

Gerekli bilgileri girdikten sonra Generate Project diyerek projemizi indirelim.

Dosyamızın yapısını aşağıdaki gibi ayarlayalım

application.properties ayarlarını aşağıdaki gibi yapılandıralım.

spring.datasource.url = jdbc:mysql://localhost:3306/persons?useSSL=false

spring.datasource.username = root

spring.datasource.password =

server.port = 8080

spring.jpa.show-sql = true

spring.jpa.hibernate.ddl-auto = update

spring.jpa.hibernate.naming-strategy = org.hibernate.cfg.ImprovedNamingStrategy

spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialect

spring.jpa.properties.hibernate.current_session_context_class=org.springframework.orm.hibernate4.SpringSessionContext

1)Maven dependencies

Projede kullanacağımız kütüphanelerin dependencylerini pom.xml dosyamıza eklemeliyiz.Ben extra Bootstrap ve jquery dependencylarını da ekledim.

<?xml version="1.0" encoding="UTF-8"?>
<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.example</groupId>
	<artifactId>demo</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>war</packaging>
	<name>demo</name>
	<description>Demo project for Spring Boot</description>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.0.1.RELEASE</version>
		<relativePath /> 
	</parent>
	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
		<java.version>1.8</java.version>
	</properties>
	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-data-jpa</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-thymeleaf</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<scope>runtime</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-tomcat</artifactId>
			<scope>provided</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.webjars</groupId>
			<artifactId>bootstrap</artifactId>
			<version>4.0.0-alpha</version>
		</dependency>
		<dependency>
			<groupId>org.webjars</groupId>
			<artifactId>jquery</artifactId>
			<version>2.1.4</version>
		</dependency>
	</dependencies>
	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>
</project>

<?xml version="1.0" encoding="UTF-8"?>

<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">

<groupId>com.example</groupId>

<version>0.0.1-SNAPSHOT</version>

<description>Demo project for Spring Boot</description>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-parent</artifactId>

<version>2.0.1.RELEASE</version>

</parent>

<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>

<java.version>1.8</java.version>

</properties>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-data-jpa</artifactId>

</dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-thymeleaf</artifactId>

</dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-web</artifactId>

</dependency>

<groupId>mysql</groupId>

<artifactId>mysql-connector-java</artifactId>

<scope>runtime</scope>

</dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-tomcat</artifactId>

<scope>provided</scope>

</dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-test</artifactId>

</dependency>

<groupId>org.webjars</groupId>

<artifactId>bootstrap</artifactId>

<version>4.0.0-alpha</version>

</dependency>

<groupId>org.webjars</groupId>

<artifactId>jquery</artifactId>

</dependency>

</dependencies>

<build>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-maven-plugin</artifactId>

</plugin>

</plugins>

</build>

</project>

2. Model Class

Dilerseniz veritabanını oluşturduktan sonra model katmanını geliştirelim.

package com.persons.model;

import java.io.Serializable;

import javax.persistence.Basic;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name = "person_information", catalog = "persons")
@SuppressWarnings("serial")
public class PersonInformation implements Serializable {

private Integer id;
	private String name;
	private String age;
	private String hobby;
	
	@Basic
	@Id
	@GeneratedValue(strategy = GenerationType.IDENTITY)
	@Column(name = "ID")
	public Integer getId() {
		return id;
	}
	public void setId(Integer id) {
		this.id = id;
	}
	@Basic
	@Column(name = "NAME")
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	@Basic
	@Column(name = "AGE")
	public String getAge() {
		return age;
	}
	public void setAge(String age) {
		this.age = age;
	}
	@Basic
	@Column(name = "HOBBY")
	public String getHobby() {
		return hobby;
	}
	public void setHobby(String hobby) {
		this.hobby = hobby;
	}
}

package com.persons.model;

import java.io.Serializable;

import javax.persistence.Basic;

import javax.persistence.Column;

import javax.persistence.Entity;

import javax.persistence.GeneratedValue;

import javax.persistence.GenerationType;

import javax.persistence.Id;

import javax.persistence.Table;

@Entity

@Table(name = "person_information", catalog = "persons")

@SuppressWarnings("serial")

public class PersonInformation implements Serializable {

private Integer id;

private String name;

private String age;

private String hobby;

@Basic

@Id

@GeneratedValue(strategy = GenerationType.IDENTITY)

@Column(name = "ID")

public Integer getId() {

return id;

}

public void setId(Integer id) {

this.id = id;

}

@Basic

@Column(name = "NAME")

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

@Basic

@Column(name = "AGE")

public String getAge() {

return age;

}

public void setAge(String age) {

this.age = age;

}

@Basic

@Column(name = "HOBBY")

public String getHobby() {

return hobby;

}

public void setHobby(String hobby) {

this.hobby = hobby;

}

@Entity anotasyonu ile veri tabanındaki tablolar temsil edilir.

@GeneratedValue ile ise primary key olan id nin otomatik olmasını sağlıyoruz.

3. Dao

Model sınıfını oluşturduktan sonra dilerseniz dao içerisine yeni bir interface oluşturalım.

Bu katmandaki metodlar temel CRUD işlemlerini yapan metodlarımız olucaktır.

package com.persons.dao;

import java.util.List;

import com.persons.model.PersonInformation;

public interface PersonInformationDao {

PersonInformation getPerson(Integer id);

void save(PersonInformation person);

List<PersonInformation> getPersonInformationList();

void updatePerson(PersonInformation person);

void deletePerson(PersonInformation person);

}

Şimdi bu sınıfın implemente edildiği PersonInformationDaoImpl sınıfını oluşturalım.

package com.persons.dao;

import com.persons.model.PersonInformation;

import java.util.List;

import javax.persistence.EntityManager;

import org.hibernate.Session;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

@Repository
public class PersonInformationDaoImpl implements PersonInformationDao {
 
	@Autowired
    private EntityManager entityManager;

private Session getSession() {
        return entityManager.unwrap(Session.class);
    }
	@Override
	public void save(PersonInformation person) {
		getSession().save(person);
	}
	@SuppressWarnings("unchecked")
	@Override
	public List<PersonInformation> getPersonInformationList() {
			return getSession().createCriteria(PersonInformation.class).list();
	}
	
	@Override
	public PersonInformation getPerson(Integer id) {
		PersonInformation PersonInformation = (PersonInformation)getSession().get(PersonInformation.class, id);
		return PersonInformation;
	}
	@Override
	public void updatePerson(PersonInformation person) {
		getSession().update(person);
		
	}
	@Override
	public void deletePerson(PersonInformation person) {
		getSession().delete(person);
	}
 
	
 
}

package com.persons.dao;

import com.persons.model.PersonInformation;

import java.util.List;

import javax.persistence.EntityManager;

import org.hibernate.Session;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Repository;

@Repository

public class PersonInformationDaoImpl implements PersonInformationDao {

@Autowired

private EntityManager entityManager;

private Session getSession() {

return entityManager.unwrap(Session.class);

}

@Override

public void save(PersonInformation person) {

getSession().save(person);

}

@SuppressWarnings("unchecked")

@Override

public List<PersonInformation> getPersonInformationList() {

return getSession().createCriteria(PersonInformation.class).list();

}

@Override

public PersonInformation getPerson(Integer id) {

PersonInformation PersonInformation = (PersonInformation)getSession().get(PersonInformation.class, id);

return PersonInformation;

}

@Override

public void updatePerson(PersonInformation person) {

getSession().update(person);

}

@Override

public void deletePerson(PersonInformation person) {

getSession().delete(person);

}

4. Service

Service dizini altına interface ve classımızı oluşturalım.

package com.persons.service;

import java.util.List;

import com.persons.model.PersonInformation;

public interface PersonInformationService {

PersonInformation getPerson(Integer id);

public void save(PersonInformation person);

List<PersonInformation> getPersonInformationList();

void updatePerson(PersonInformation person);

void deletePerson(PersonInformation person);

}

package com.persons.service;

import java.util.List;

import javax.transaction.Transactional;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import com.persons.dao.PersonInformationDao;

import com.persons.model.PersonInformation;

@Service

@Transactional

public class PersonInformationServiceImpl implements PersonInformationService {

@Autowired

private PersonInformationDao personsDao;

@Override

public void save(PersonInformation person) {

personsDao.save(person);

}

@Override

public List<PersonInformation> getPersonInformationList() {

return personsDao.getPersonInformationList();

}

@Override

public PersonInformation getPerson(Integer id) {

return personsDao.getPerson(id);

}

@Override

public void updatePerson(PersonInformation person) {

personsDao.updatePerson(person);

}

@Override

public void deletePerson(PersonInformation person) {

personsDao.deletePerson(person);

}

5. Controller

Şimdi de controllerımızı oluşturalım.

package com.persons.controller;

import java.util.List;
import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.persons.model.PersonInformation;
import com.persons.service.PersonInformationService;

@Controller
public class PersonsController {
	@Autowired
	private PersonInformationService personInformationService;
	
	@RequestMapping(value = "/index", method = RequestMethod.GET)
	public String inde(Model model) {
		List<PersonInformation> personInformation = personInformationService.getPersonInformationList( );
		model.addAttribute("personInformation", personInformation);
		return "index";
	}
	
	@RequestMapping(value="/edit/{id}", method=RequestMethod.GET)
	public String editTeamPage(Model model,@PathVariable("id") Integer id) {
		PersonInformation persons = personInformationService.getPerson(id);
		model.addAttribute("persons", persons);
		return  "edit";
	}
 
	@RequestMapping(value = "/edit/{id}", method = RequestMethod.POST)
	public String edditingMusteri(@PathVariable int id, PersonInformation prs) {
	 	PersonInformation persons = personInformationService.getPerson(id);
	 	persons.setName(prs.getName());
	 	persons.setAge(prs.getAge());
	 	persons.setHobby(prs.getHobby());
		personInformationService.updatePerson(persons);
		return "redirect:/index/";
	} 
	
	@RequestMapping(value = "/personDelete/{id}", method = RequestMethod.GET)
	public String deleteAjandaNotlar(@PathVariable("id") Integer id) {
		PersonInformation persons=personInformationService.getPerson(id);
		personInformationService.deletePerson(persons);
		return "redirect:/index/";
	}
	@RequestMapping(value = "/add", method = RequestMethod.GET)
	public String indet(Model model) {
		model.addAttribute("personInformation", new PersonInformation());
		return "add";
	}
	@RequestMapping(value = "/add", method = RequestMethod.POST)
	public String addMusteriNot(HttpServletRequest request, @ModelAttribute("PersonInformation") PersonInformation newPerson, BindingResult result) {
		PersonInformation persons = new PersonInformation();
		persons.setId(newPerson.getId());
		persons.setName(newPerson.getName());
		persons.setAge(newPerson.getAge());
		persons.setHobby(newPerson.getHobby());
		personInformationService.save(persons);
		return "redirect:/index";
	} 
}

package com.persons.controller;

import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;

import org.springframework.ui.Model;

import org.springframework.validation.BindingResult;

import org.springframework.web.bind.annotation.ModelAttribute;

import org.springframework.web.bind.annotation.PathVariable;

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

import org.springframework.web.bind.annotation.RequestMethod;

import com.persons.model.PersonInformation;

import com.persons.service.PersonInformationService;

@Controller

public class PersonsController {

@Autowired

private PersonInformationService personInformationService;

@RequestMapping(value = "/index", method = RequestMethod.GET)

public String inde(Model model) {

List<PersonInformation> personInformation = personInformationService.getPersonInformationList( );

model.addAttribute("personInformation", personInformation);

return "index";

}

@RequestMapping(value="/edit/{id}", method=RequestMethod.GET)

public String editTeamPage(Model model,@PathVariable("id") Integer id) {

PersonInformation persons = personInformationService.getPerson(id);

model.addAttribute("persons", persons);

return "edit";

}

@RequestMapping(value = "/edit/{id}", method = RequestMethod.POST)

public String edditingMusteri(@PathVariable int id, PersonInformation prs) {

PersonInformation persons = personInformationService.getPerson(id);

persons.setName(prs.getName());

persons.setAge(prs.getAge());

persons.setHobby(prs.getHobby());

personInformationService.updatePerson(persons);

return "redirect:/index/";

}

@RequestMapping(value = "/personDelete/{id}", method = RequestMethod.GET)

public String deleteAjandaNotlar(@PathVariable("id") Integer id) {

PersonInformation persons=personInformationService.getPerson(id);

personInformationService.deletePerson(persons);

return "redirect:/index/";

}

@RequestMapping(value = "/add", method = RequestMethod.GET)

public String indet(Model model) {

model.addAttribute("personInformation", new PersonInformation());

return "add";

}

@RequestMapping(value = "/add", method = RequestMethod.POST)

public String addMusteriNot(HttpServletRequest request, @ModelAttribute("PersonInformation") PersonInformation newPerson, BindingResult result) {

PersonInformation persons = new PersonInformation();

persons.setId(newPerson.getId());

persons.setName(newPerson.getName());

persons.setAge(newPerson.getAge());

persons.setHobby(newPerson.getHobby());

personInformationService.save(persons);

return "redirect:/index";

}

Controller sınıfımızı @Controller anatasyonu olarak belirtelim.

Method attiributenin aldığı değerler;

RequestMethod.GET : GET ile sunucuya istekte bulunup ilgili sayfaya ulaşırız
RequestMethod.POST : POST ile istek yollayıp ilgili veritabanı işlemlerini gerçeklerştirdik.

6.View

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
	xmlns:th="http://www.thymeleaf.org">
<link rel="stylesheet" type="text/css" th:href="@{/css/bootstrap.min.css}" />
<body>
	<div class="container">
		<div class="card">
			<div class="card-block">
				<table class="table table-striped table-hover table-bordered">
					<thead>
						<tr>
					    	<th>Name</th>
							<th>Age</th>
							<th>Hobby</th>
							</tr>
					</thead>
			 	  <tbody th:each="person : ${personInformation}">
						    <tr>
						        <td th:text="${person.name}"></td>
							<td th:text="${person.age}"></td>
							<td th:text="${person.hobby}"></td>
 					 <td><a th:href="@{'/edit/' +${person.id}}"  class="btn btn-primary">Edit</a> 
				 <a  class="btn btn-warning " th:href="@{'/personDelete/' + ${person.id}}" title="Sil" >Delete</a> </td>
					</tbody>
				</table>
				<a th:href="@{/add}"  class="btn btn-primary">New Person</a>
			</div>
		</div>
	</div>
	<th:block th:include="commons/javascript_url ::  javascript_url"></th:block>
</body>
</html>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml"

xmlns:th="http://www.thymeleaf.org">

<body>

<thead>

<tr>

<th>Hobby</th>

</tr>

</thead>

<tr>

<a class="btn btn-warning " th:href="@{'/personDelete/' + ${person.id}}" title="Sil" >Delete</a> </td>

</tbody>

</table>

<a th:href="@{/add}" class="btn btn-primary">New Person</a>

</div>

<th:block th:include="commons/javascript_url :: javascript_url"></th:block>

</body>

</html>

Aşağıdaki gibi bir görüntü oluşacaktır.

Şimdi add.html ve edit.html sayfalarımızı oluşturalım.

add.html

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org">
<link rel="stylesheet" type="text/css" th:href="@{/css/bootstrap.min.css}" />
<body>
 <div class="container">
		<div class="card">
			<div class="card-block">
				<form th:action="@{/add}" method="post" th:object="${personInformation}">
					<div class="form-row">
						<div class="form-group col-md-12">
							<div class="form-group">
								<label for="message-text" class="col-form-label">NAME:</label>
								<textarea class="form-control" th:field="*{name}"></textarea>
							</div>
							<div class="form-group">
								<label for="message-text" class="col-form-label">AGE:</label>
								<textarea class="form-control" th:field="*{age}"></textarea>
							</div>
							<div class="form-group">
								<label for="message-text" class="col-form-label">HOBBY:</label>
								<textarea class="form-control" id="message-text" th:field="*{hobby}"></textarea>
							</div>
							<div class="form-group">
							<button class="btn btn-success btn-sm" id="userFormButton"
								type="submit">
								<i class="fa  fa-plus-square"></i>Kaydet
							</button>
							</div>
						</div>
					</div>
				</form>
			</div>
		</div>
	</div>
	<th:block th:include="commons/javascript_url ::  javascript_url"></th:block>
</body>
</html>

<!DOCTYPE html>

<body>

</div>

</div>

<label for="message-text" class="col-form-label">HOBBY:</label>

</div>

<button class="btn btn-success btn-sm" id="userFormButton"

type="submit">

<i class="fa fa-plus-square"></i>Kaydet

</button>

</div>

</form>

</div>

<th:block th:include="commons/javascript_url :: javascript_url"></th:block>

</body>

</html>

edit.html

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org">
<link rel="stylesheet" type="text/css" th:href="@{/css/bootstrap.min.css}" />
<body>
 <div class="container">
		<div class="card">
			<div class="card-block">
				<form th:action="@{'/edit/' +${persons.id}}" method="post">
					<div class="form-row">
						<div class="form-group col-md-12">
							<div class="form-group">
								<label for="message-text" class="col-form-label">NAME:</label>
								<textarea class="form-control" th:field="*{persons.name}"></textarea>
							</div>
							<div class="form-group">
								<label for="message-text" class="col-form-label">AGE:</label>
								<textarea class="form-control" th:field="*{persons.age}"></textarea>
							</div>
							<div class="form-group">
								<label for="message-text" class="col-form-label">HOBBY:</label>
								<textarea class="form-control" id="message-text" th:field="*{persons.hobby}"></textarea>
							</div>
							<div class="form-group">
								<input type="submit" class="btn btn-primary" value="Edit" />
							</div>
						</div>
					</div>
				</form>
			</div>
		</div>
	</div>
	<th:block th:include="commons/javascript_url ::  javascript_url"></th:block>
</body>
</html>

<!DOCTYPE html>

<body>

</div>

</div>

<label for="message-text" class="col-form-label">HOBBY:</label>

</div>

</div>

</form>

</div>

<th:block th:include="commons/javascript_url :: javascript_url"></th:block>

</body>

</html>

Bootstrap ve javascript’in URL adreslerini commons dosyasına belirtelim.

</div>

</html>

Application=>run dedikten sonra araç çubuğuna aşağıdaki adresi yazalım.

Aşağıdaki görüntü karşılayacaktır bizi.

Umarım faydalı olmuştur.Keyifli çalışmalar dilerim,sevgiler.

Spring Boot İle Rest Servis Uygulama Örneği

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Spring Boot – Hibernate – Mysql-Thymeleaf Örnek Uygulama1

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2. Model Class

3. Dao

4. Service

5. Controller

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Spring Boot – Hibernate – Mysql-Thymeleaf Örnek Uygulama1

Spring Boot – Hibernate – Mysql-Thymeleaf Örnek Uygulama1

1)Maven dependencies

2. Model Class

3. Dao

4. Service

5. Controller

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