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Let's first list out the tools and technologies that we need to develop this Spring MVC CRUD app.
Tools and technologies used
- Spring MVC - 5.1.0 RELEASE
- Hibernate - 5.2.17.Final
- JDK - 1.8 or later
- Maven - 3.5.1
- Apache Tomcat - 8.5
- IDE - STS/Eclipse Neon.3
- JSTL - 1.2.1
- JSP - 2.3.1
- MySQL - 5.1.47
Development Steps
- Create a Maven Web Application
- Add Dependencies - pom.xml File
- Project Structure
- AppInitializer - Register a DispatcherServlet using Java-based Spring configuration
- AppContext - Spring and Hibernate Integration using Java-based Spring configuration
- WebMvcConfig - Spring MVC Bean Configuration using Java-based Spring configuration
- JPA Entity - Customer.java
- Spring MVC Controller Class - CustomerController.java
- Service Layer - CustomerService.java and CustomerServiceImpl.java
- DAO Layer - CustomerDAO.java and CustomerDAOImpl.java 11 JSP Views - customer-form.jsp and list-customers.jsp
- Serve Static Resources - CSS and JS
- Build and Run an application
- Demo
1. Create a Maven Web Application
If you are new to maven then learn maven on Apache Maven Tutorial
2. Add Dependencies - pom.xml File
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>net.javaguides.springmvc</groupId>
<artifactId>springmvc5-hibernate5-jsp-mysql-example</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>springmvc5-hibernate5-jsp-mysql-example Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<failOnMissingWebXml>false</failOnMissingWebXml>
<spring.version>5.1.0.RELEASE</spring.version>
<hibernate.version>5.3.5.Final</hibernate.version>
<hibernate.validator>5.4.1.Final</hibernate.validator>
<c3p0.version>0.9.5.2</c3p0.version>
<jstl.version>1.2.1</jstl.version>
<tld.version>1.1.2</tld.version>
<servlets.version>3.1.0</servlets.version>
<jsp.version>2.3.1</jsp.version>
<hsqldb.version>1.8.0.10</hsqldb.version>
</properties>
<dependencies>
<!-- Spring MVC Dependency -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- Spring ORM -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- Hibernate Core -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.2.17.Final</version>
</dependency>
<!-- Hibernate Validator -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>${hibernate.validator}</version>
</dependency>
<!-- JSTL Dependency -->
<dependency>
<groupId>javax.servlet.jsp.jstl</groupId>
<artifactId>javax.servlet.jsp.jstl-api</artifactId>
<version>${jstl.version}</version>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>${tld.version}</version>
</dependency>
<!-- Servlet Dependency -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>${servlets.version}</version>
<scope>provided</scope>
</dependency>
<!-- JSP Dependency -->
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>${jsp.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.47</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
<dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>${spring.version}</version> </dependency>
3. Project Structure
Class Diagram
4. AppInitializer - Register a DispatcherServlet using Java-based Spring configuration
package net.javaguides.springmvc.config;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
/**
* @author Ramesh Fadatare
*/
public class AppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
@Override
protected Class << ? > [] getRootConfigClasses() {
return new Class[] {
AppContext.class
};
//return null;
}
@Override
protected Class << ? > [] getServletConfigClasses() {
return new Class[] {
WebMvcConfig.class
};
}
@Override
protected String[] getServletMappings() {
return new String[] {
"/"
};
}
}
5. AppContext - Spring and Hibernate Integration using Java-based Spring configuration
package net.javaguides.springmvc.config;
import java.util.Properties;
import javax.sql.DataSource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.core.env.Environment;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.orm.hibernate5.HibernateTransactionManager;
import org.springframework.orm.hibernate5.LocalSessionFactoryBean;
import org.springframework.transaction.annotation.EnableTransactionManagement;
@Configuration
@PropertySource("classpath:database.properties")
@EnableTransactionManagement
public class AppContext {
@Autowired
private Environment environment;
@Bean
public LocalSessionFactoryBean sessionFactory() {
LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
sessionFactory.setDataSource(dataSource());
sessionFactory.setPackagesToScan(new String[] {
"net.javaguides.springmvc.entity"
});
sessionFactory.setHibernateProperties(hibernateProperties());
return sessionFactory;
}
@Bean
public DataSource dataSource() {
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(environment.getRequiredProperty("jdbc.driverClassName"));
dataSource.setUrl(environment.getRequiredProperty("jdbc.url"));
dataSource.setUsername(environment.getRequiredProperty("jdbc.username"));
dataSource.setPassword(environment.getRequiredProperty("jdbc.password"));
return dataSource;
}
private Properties hibernateProperties() {
Properties properties = new Properties();
properties.put("hibernate.dialect", environment.getRequiredProperty("hibernate.dialect"));
properties.put("hibernate.show_sql", environment.getRequiredProperty("hibernate.show_sql"));
properties.put("hibernate.format_sql", environment.getRequiredProperty("hibernate.format_sql"));
properties.put("hibernate.hbm2ddl.auto", environment.getRequiredProperty("hibernate.hbm2ddl.auto"));
return properties;
}
@Bean
public HibernateTransactionManager getTransactionManager() {
HibernateTransactionManager transactionManager = new HibernateTransactionManager();
transactionManager.setSessionFactory(sessionFactory().getObject());
return transactionManager;
}
}
- LocalSessionFactoryBean creates a Hibernate SessionFactory. This is the usual way to set up a shared Hibernate SessionFactory in a Spring application context.
- EnableTransactionManagement enables Spring’s annotation-driven transaction management capability.
- HibernateTransactionManager binds a Hibernate Session from the specified factory to the thread, potentially allowing for one thread-bound Session per factory. This transaction manager is appropriate for applications that use a single Hibernate SessionFactory for transactional data access, but it also supports direct DataSource access within a transaction i.e. plain JDBC.
database.properties
jdbc.driverClassName = com.mysql.jdbc.Driver
jdbc.url = jdbc:mysql://localhost:3306/demo?useSSL=false
jdbc.username = root
jdbc.password = root
hibernate.dialect = org.hibernate.dialect.MySQL5InnoDBDialect
hibernate.show_sql = true
hibernate.format_sql = true
hibernate.hbm2ddl.auto = update
6. WebMvcConfig - Spring MVC Bean Configuration using Java-based Spring configuration
package net.javaguides.springmvc.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.JstlView;
/**
* @author Ramesh Fadatare
*/
@Configuration
@EnableWebMvc
@ComponentScan(basePackages = {
"net.javaguides.springmvc"
})
public class WebMvcConfig implements WebMvcConfigurer {
@Bean
public InternalResourceViewResolver resolver() {
InternalResourceViewResolver resolver = new InternalResourceViewResolver();
resolver.setViewClass(JstlView.class);
resolver.setPrefix("/WEB-INF/views/");
resolver.setSuffix(".jsp");
return resolver;
}
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry
.addResourceHandler("/resources/**")
.addResourceLocations("/resources/");
}
}
7. JPA Entity - Customer.java
package net.javaguides.springmvc.entity;
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 = "customer")
public class Customer {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "id")
private int id;
@Column(name = "first_name")
private String firstName;
@Column(name = "last_name")
private String lastName;
@Column(name = "email")
private String email;
public Customer() {
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
@Override
public String toString() {
return "Customer [id=" + id + ", firstName=" + firstName + ", lastName=" + lastName + ", email=" + email + "]";
}
}
8. Spring MVC Controller Class - CustomerController.java
package net.javaguides.springmvc.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import net.javaguides.springmvc.entity.Customer;
import net.javaguides.springmvc.service.CustomerService;
@Controller
@RequestMapping("/customer")
public class CustomerController {
@Autowired
private CustomerService customerService;
@GetMapping("/list")
public String listCustomers(Model theModel) {
List < Customer > theCustomers = customerService.getCustomers();
theModel.addAttribute("customers", theCustomers);
return "list-customers";
}
@GetMapping("/showForm")
public String showFormForAdd(Model theModel) {
Customer theCustomer = new Customer();
theModel.addAttribute("customer", theCustomer);
return "customer-form";
}
@PostMapping("/saveCustomer")
public String saveCustomer(@ModelAttribute("customer") Customer theCustomer) {
customerService.saveCustomer(theCustomer);
return "redirect:/customer/list";
}
@GetMapping("/updateForm")
public String showFormForUpdate(@RequestParam("customerId") int theId,
Model theModel) {
Customer theCustomer = customerService.getCustomer(theId);
theModel.addAttribute("customer", theCustomer);
return "customer-form";
}
@GetMapping("/delete")
public String deleteCustomer(@RequestParam("customerId") int theId) {
customerService.deleteCustomer(theId);
return "redirect:/customer/list";
}
}
9. Service Layer - CustomerService.java and CustomerServiceImpl.java
CustomerService.java
package net.javaguides.springmvc.service;
import java.util.List;
import net.javaguides.springmvc.entity.Customer;
public interface CustomerService {
public List < Customer > getCustomers();
public void saveCustomer(Customer theCustomer);
public Customer getCustomer(int theId);
public void deleteCustomer(int theId);
}
CustomerServiceImpl.java
package net.javaguides.springmvc.service;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import net.javaguides.springmvc.dao.CustomerDAO;
import net.javaguides.springmvc.entity.Customer;
@Service
public class CustomerServiceImpl implements CustomerService {
@Autowired
private CustomerDAO customerDAO;
@Override
@Transactional
public List < Customer > getCustomers() {
return customerDAO.getCustomers();
}
@Override
@Transactional
public void saveCustomer(Customer theCustomer) {
customerDAO.saveCustomer(theCustomer);
}
@Override
@Transactional
public Customer getCustomer(int theId) {
return customerDAO.getCustomer(theId);
}
@Override
@Transactional
public void deleteCustomer(int theId) {
customerDAO.deleteCustomer(theId);
}
}
10. DAO Layer - CustomerDAO.java and CustomerDAOImpl.java
CustomerDAO.java
package net.javaguides.springmvc.dao;
import java.util.List;
import net.javaguides.springmvc.entity.Customer;
public interface CustomerDAO {
public List < Customer > getCustomers();
public void saveCustomer(Customer theCustomer);
public Customer getCustomer(int theId);
public void deleteCustomer(int theId);
}
CustomerDAOImpl.java
package net.javaguides.springmvc.dao;
import java.util.List;
import javax.persistence.Query;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Root;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import net.javaguides.springmvc.entity.Customer;
@Repository
public class CustomerDAOImpl implements CustomerDAO {
@Autowired
private SessionFactory sessionFactory;
@Override
public List < Customer > getCustomers() {
Session session = sessionFactory.getCurrentSession();
CriteriaBuilder cb = session.getCriteriaBuilder();
CriteriaQuery < Customer > cq = cb.createQuery(Customer.class);
Root < Customer > root = cq.from(Customer.class);
cq.select(root);
Query query = session.createQuery(cq);
return query.getResultList();
}
@Override
public void deleteCustomer(int id) {
Session session = sessionFactory.getCurrentSession();
Customer book = session.byId(Customer.class).load(id);
session.delete(book);
}
@Override
public void saveCustomer(Customer theCustomer) {
Session currentSession = sessionFactory.getCurrentSession();
currentSession.saveOrUpdate(theCustomer);
}
@Override
public Customer getCustomer(int theId) {
Session currentSession = sessionFactory.getCurrentSession();
Customer theCustomer = currentSession.get(Customer.class, theId);
return theCustomer;
}
}
11 JSP Views - customer-form.jsp and list-customers.jsp
customer-form.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Spring MVC 5 - form handling | Java Guides</title>
<link href="<c:url value="/resources/css/bootstrap.min.css" />"
rel="stylesheet">
<script src="<c:url value="/resources/js/jquery-1.11.1.min.js" />"></script>
<script src="<c:url value="/resources/js/bootstrap.min.js" />"></script>
</head>
<body>
<div class="container">
<div class="col-md-offset-2 col-md-7">
<h2 class="text-center">Spring MVC 5 + Hibernate 5 + JSP + MySQL
Example</h2>
<div class="panel panel-info">
<div class="panel-heading">
<div class="panel-title">Add Customer</div>
</div>
<div class="panel-body">
<form:form action="saveCustomer" cssClass="form-horizontal"
method="post" modelAttribute="customer">
<!-- need to associate this data with customer id -->
<form:hidden path="id" />
<div class="form-group">
<label for="firstname" class="col-md-3 control-label">First
Name</label>
<div class="col-md-9">
<form:input path="firstName" cssClass="form-control" />
</div>
</div>
<div class="form-group">
<label for="lastname" class="col-md-3 control-label">Last
Name</label>
<div class="col-md-9">
<form:input path="lastName" cssClass="form-control" />
</div>
</div>
<div class="form-group">
<label for="email" class="col-md-3 control-label">Email</label>
<div class="col-md-9">
<form:input path="email" cssClass="form-control" />
</div>
</div>
<div class="form-group">
<!-- Button -->
<div class="col-md-offset-3 col-md-9">
<form:button cssClass="btn btn-primary">Submit</form:button>
</div>
</div>
</form:form>
</div>
</div>
</div>
</div>
</body>
</html>
list-customers.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html>
<html>
<head><%@ page isELIgnored="false" %>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>javaguides.net</title>
<link href="<c:url value="/resources/css/bootstrap.min.css" />"
rel="stylesheet">
<script src="<c:url value="/resources/js/jquery-1.11.1.min.js" />"></script>
<script src="<c:url value="/resources/js/bootstrap.min.js" />"></script>
</head>
<body>
<div class="container">
<div class="col-md-offset-1 col-md-10">
<h2>CRM - Customer Relationship Manager</h2>
<hr />
<input type="button" value="Add Customer"
onclick="window.location.href='showForm'; return false;"
class="btn btn-primary" />
<br/><br/>
<div class="panel panel-info">
<div class="panel-heading">
<div class="panel-title">Customer List</div>
</div>
<div class="panel-body">
<table class="table table-striped table-bordered">
<tr>
<th>First Name</th>
<th>Last Name</th>
<th>Email</th>
<th>Action</th>
</tr>
<!-- loop over and print our customers -->
<c:forEach var="tempCustomer" items="${customers}">
<!-- construct an "update" link with customer id -->
<c:url var="updateLink" value="/customer/updateForm">
<c:param name="customerId" value="${tempCustomer.id}" />
</c:url>
<!-- construct an "delete" link with customer id -->
<c:url var="deleteLink" value="/customer/delete">
<c:param name="customerId" value="${tempCustomer.id}" />
</c:url>
<tr>
<td>${tempCustomer.firstName}</td>
<td>${tempCustomer.lastName}</td>
<td>${tempCustomer.email}</td>
<td>
<!-- display the update link --> <a href="${updateLink}">Update</a>
| <a href="${deleteLink}"
onclick="if (!(confirm('Are you sure you want to delete this customer?'))) return false">Delete</a>
</td>
</tr>
</c:forEach>
</table>
</div>
</div>
</div>
</div>
</body>
</html>
12. Serve Static Resources - CSS and JS
- Create a resource folder under webapp directory.
- Create css and js folders under the resource directory.
- Download and keep bootstrap.min.css file under css folder
- download and keep bootstrap.min.js and jquery-1.11.1.min.js files under the resource directory. Note that bootstrap min js is depended on jquery min js.
13. Build and Run an application
clean install
Demo
Add Customer page :
List of customers:
The source code of this tutorial is available on my GitHub repository.
Check out complete Spring MVC tutorials at https://www.javaguides.net/p/spring-mvc-tutorial.html.
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