Spring MVC + Spring Data JPA CRUD Example

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Spring Boot 2 Tutorial Spring for Beginners Spring Core 5 Tutorial Spring MVC 5 Tutorial Spring Data JPA Tutorial Spring Security Tutorial

In this tutorial, we will discuss the integration of Spring MVC 5, Spring Data JPA, and MySQL CRUD example. We will demonstrate CRUD(Create, Retrieve, Update, Delete) operations on a Customer entity with MySQL database.

In this tutorial, we will use a Java-based spring configuration to configure Spring MVC 5, Spring Data JPA, Hibernate 5 and MySQL, etc.

Spring Data JPA provides CRUD API, so you don’t have to write boilerplate code. You just need to create a repository interface and spring will provide implementation automatically.

Before you get started, check out Spring Data JPA Tutorial and Spring MVC Tutorial

   Spring MVC Tutorials and Articles

• Spring MVC 5 - Hello World Example
• Spring MVC 5 - Sign Up Form Handling Example
• Spring MVC JSP Form Tags Tutorial
• Spring MVC 5 Form Validation with Annotations Tutorial
• Spring MVC 5 + Hibernate 5 + JSP + MySQL CRUD Tutorial
• Spring MVC 5 + Spring Data JPA + Hibernate 5 + JSP + MySQL Tutorial
• Spring MVC + Spring Boot2 + JSP + JPA + Hibernate 5 + MySQL Example
• Spring Boot 2 MVC Web Application Thymeleaf JPA MySQL Example
• Spring MVC + Spring Boot2 + JSP + JPA + Hibernate 5 + MySQL Example
• Spring Boot 2 MVC Web Application Thymeleaf JPA MySQL Example
• Spring Boot 2 - Spring MVC + Thymeleaf Input Form Validation
• Spring Boot 2 + Spring MVC + Spring Security + JPA + Thymeleaf + MySQL Tutorial
• Authenticating a User with LDAP using Spring Boot and Spring Security
• The Spring @Controller and @RestController Annotations with Examples 
• Spring @RequestBody and @ResponseBody Annotations
• @GetMapping, @PostMapping, @PutMapping, @DeleteMapping, and @PatchMapping
• Spring Web MVC Annotations
• Mini Todo Management Project using Spring Boot + Spring MVC + Spring Security
• User Registration Module using Spring Boot + Spring MVC + Spring Security + Hibernate 5 

Tools and technologies used

• Spring MVC - 5.1.0 RELEASE
• Spring Data JPA - 2.10 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

Let me list out development steps so that it will be easy to develop and understand the Spring MVC application step by step.

Development Steps

1. Create a Maven Web Application
2. Add Dependencies - pom.xml File
3. Project Structure
4. AppInitializer - Register a DispatcherServlet using Java-based Spring configuration
5. PersistenceJPAConfig - Spring Data JPA and Hibernate Configuration using Java-based Spring configuration
6. WebMvcConfig - Spring MVC Bean Configuration using Java-based Spring configuration
7. JPA Entity - Customer.java
8. Spring MVC Controller Class - CustomerController.java
9. Service Layer - CustomerService.java and CustomerServiceImpl.java
10. Spring Data JPA Repository - CustomerRepository.java
11. Custom Exception - ResourceNotFoundException.java
12. JSP Views - customer-form.jsp and list-customers.jsp
13. Serve Static Resources - CSS and JS
14. Build and Run an application
15. Demo

1. Create Maven Web Application

Let's create a Maven based web application either using a command line or from Eclipse IDE.

1.  Use Guide to Create Maven Web Application link to create a maven project using a command line. 

2. Use Create Maven Web Application using Eclipse IDE link to create maven web application using IDE Eclipse.

Once you created maven web application, refer below pom.xml file jar dependencies.

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-springdatajpa2-jsp-mysql-example</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>springmvc5-springdatajpa2-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>5.2.17.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>
        <log4j.version>1.2.17</log4j.version>
    </properties>
    <dependencies>
        <!-- Spring MVC Dependency -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>commons-logging</groupId>
                    <artifactId>commons-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <!-- Spring ORM -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-entitymanager</artifactId>
            <version>${hibernate.version}</version>
        </dependency>
        <!-- Hibernate Validator -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>${hibernate.validator}</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.springframework.data/spring-data-jpa -->
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-jpa</artifactId>
            <version>2.1.0.RELEASE</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>
        <!-- logging -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>jcl-over-slf4j</artifactId>
            <version>1.7.20</version>
        </dependency>
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>1.1.7</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>

3. Project Structure

Standard project structure for your reference. Refer below project structure throughout this spring MVC application development.

Class Diagram 

4. AppInitializer - Register a DispatcherServlet using Java-based Spring configuration

In Spring MVC, The DispatcherServlet needs to be declared and mapped for processing all requests either using java or web.xml configuration.

In a Servlet 3.0+ environment, you can use AbstractAnnotationConfigDispatcherServletInitializer class to register and initialize the DispatcherServlet programmatically as follows.

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[] {
            PersistenceJPAConfig.class
        };
        //return null;
    }

    @Override
    protected Class << ? > [] getServletConfigClasses() {
        return new Class[] {
            WebMvcConfig.class
        };
    }

    @Override
    protected String[] getServletMappings() {
        return new String[] {
            "/"
        };
    }
}

5. PersistenceJPAConfig - Spring Data JPA and Hibernate Configuration using Java-based Spring configuration

Database Configuration - database.properties

# jdbc.X
jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/demo?useSSL=false
jdbc.user=root
jdbc.pass=root

# hibernate.X
hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
hibernate.show_sql=false
hibernate.hbm2ddl.auto=create-drop
hibernate.cache.use_second_level_cache=false
hibernate.cache.use_query_cache=false

PersistenceJPAConfig.java

Please note that the @EnableJpaRepositories annotation which enables usage of JPA repositories. The net.javaguides.springmvc.repository package will be scanned to detect repositories. In the entityManagerFactory bean, I determined that Hibernate will be used as JPA implementation.

@EnableTransactionManagement annotation enables Spring's annotation-driven transaction management capability, similar to the support found in Spring's tx:* XML namespace.

package net.javaguides.springmvc.config;

import java.util.Properties;

import javax.persistence.EntityManagerFactory;
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.dao.annotation.PersistenceExceptionTranslationPostProcessor;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

@Configuration
@EnableTransactionManagement
@PropertySource({
    "classpath:database.properties"
})
@ComponentScan({
    "net.javaguides.springmvc"
})
@EnableJpaRepositories(basePackages = "net.javaguides.springmvc.repository")
public class PersistenceJPAConfig {

    @Autowired
    private Environment env;

    public PersistenceJPAConfig() {
        super();
    }

    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
        final LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();
        entityManagerFactoryBean.setDataSource(dataSource());
        entityManagerFactoryBean.setPackagesToScan(new String[] {
            "net.javaguides.springmvc.entity"
        });

        final HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
        entityManagerFactoryBean.setJpaVendorAdapter(vendorAdapter);
        entityManagerFactoryBean.setJpaProperties(additionalProperties());

        return entityManagerFactoryBean;
    }

    final Properties additionalProperties() {
        final Properties hibernateProperties = new Properties();
        hibernateProperties.setProperty("hibernate.hbm2ddl.auto", env.getProperty("hibernate.hbm2ddl.auto"));
        hibernateProperties.setProperty("hibernate.dialect", env.getProperty("hibernate.dialect"));
        hibernateProperties.setProperty("hibernate.cache.use_second_level_cache", env.getProperty("hibernate.cache.use_second_level_cache"));
        hibernateProperties.setProperty("hibernate.cache.use_query_cache", env.getProperty("hibernate.cache.use_query_cache"));
        // hibernateProperties.setProperty("hibernate.globally_quoted_identifiers", "true");
        return hibernateProperties;
    }

    @Bean
    public DataSource dataSource() {
        final DriverManagerDataSource dataSource = new DriverManagerDataSource();
        dataSource.setDriverClassName(env.getProperty("jdbc.driverClassName"));
        dataSource.setUrl(env.getProperty("jdbc.url"));
        dataSource.setUsername(env.getProperty("jdbc.user"));
        dataSource.setPassword(env.getProperty("jdbc.pass"));
        return dataSource;
    }

    @Bean
    public PlatformTransactionManager transactionManager(final EntityManagerFactory emf) {
        final JpaTransactionManager transactionManager = new JpaTransactionManager();
        transactionManager.setEntityManagerFactory(emf);
        return transactionManager;
    }

    @Bean
    public PersistenceExceptionTranslationPostProcessor exceptionTranslation() {
        return new PersistenceExceptionTranslationPostProcessor();
    }
}

6. WebMvcConfig - Spring MVC Bean Configuration using Java-based Spring configuration

Create an MVCConfig class and annotated with @Configuration, @EnableWebMvc, and @ComponentScan annotations.

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.controller"
})
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

Let's create CustomerController Class with CRUD Customer operations.

package net.javaguides.springmvc.controller;

import java.util.List;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
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.exception.ResourceNotFoundException;
import net.javaguides.springmvc.service.CustomerService;

@Controller
@RequestMapping("/customer")
public class CustomerController {

    private static final Logger LOG = LoggerFactory.getLogger(CustomerController.class);

    @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) {
        LOG.debug("inside show customer-form handler method");
        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) throws ResourceNotFoundException {
        Customer theCustomer = customerService.getCustomer(theId);
        theModel.addAttribute("customer", theCustomer);
        return "customer-form";
    }

    @GetMapping("/delete")
    public String deleteCustomer(@RequestParam("customerId") int theId) throws ResourceNotFoundException {
        customerService.deleteCustomer(theId);
        return "redirect:/customer/list";
    }
}

9. Service Layer - CustomerService.java and CustomerServiceImpl.java

CustomerService.java

Let's create CustomerService class with Customer service operations.

package net.javaguides.springmvc.service;

import java.util.List;

import net.javaguides.springmvc.entity.Customer;
import net.javaguides.springmvc.exception.ResourceNotFoundException;

public interface CustomerService {

    public List < Customer > getCustomers();

    public void saveCustomer(Customer theCustomer);

    public Customer getCustomer(int theId) throws ResourceNotFoundException;

    public void deleteCustomer(int theId) throws ResourceNotFoundException;
}

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.entity.Customer;
import net.javaguides.springmvc.exception.ResourceNotFoundException;
import net.javaguides.springmvc.repository.CustomerRepository;

@Service
public class CustomerServiceImpl implements CustomerService {

    @Autowired
    private CustomerRepository customerRepository;

    @Override
    @Transactional
    public List < Customer > getCustomers() {
        return customerRepository.findAll();
    }

    @Override
    @Transactional
    public void saveCustomer(Customer theCustomer) {
        customerRepository.save(theCustomer);
    }

    @Override
    @Transactional
    public Customer getCustomer(int id) throws ResourceNotFoundException {
        return customerRepository.findById(id).orElseThrow(
            () - > new ResourceNotFoundException(id));
    }

    @Override
    @Transactional
    public void deleteCustomer(int theId) {
        customerRepository.deleteById(theId);
    }
}

10. Spring Data JPA Repository - CustomerRepository.java

package net.javaguides.springmvc.repository;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

import net.javaguides.springmvc.entity.Customer;

@Repository("customerRepository")
public interface CustomerRepository extends JpaRepository<Customer, Integer> {

}

11. Custom Exception - ResourceNotFoundException.java

package net.javaguides.springmvc.exception;

public class ResourceNotFoundException extends Exception {
    private static final long serialVersionUID = 1 L;

    public ResourceNotFoundException(Object resourId) {
        super(resourId != null ? resourId.toString() : null);
    }
}

12. 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">
   <h3 class="text-center">Spring MVC 5 + Spring Data JPA 2 + JSP + MySQL
    Example - Customer Management</h3>
   <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>
<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">
<%@ page isELIgnored="false"%>
<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">
   <h3 class="text-center">Spring MVC 5 + Spring Data JPA 2 + JSP +
    MySQL Example - Customer Management</h3>
   <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>
 <div class="footer">
  <p>Footer</p>
 </div>
</body>

</html>

13. Serve Static Resources - CSS and JS

1. Create a resource folder under webapp directory.
2. Create css and js folders under the resource directory.
3. Download and keep bootstrap.min.css file under css folder
4. download and keep bootstrap.min.js and jquery-1.11.1.min.js files under the resource directory. Note that bootstrap js is depends on jquery js.

14. Build and Run an application

As we are using maven build tool so first, we will need to build this application using following maven command:

clean install

Once build success, then we will run this application on tomcat server 8.5 in IDE or we can also deploy war file on external tomcat webapps folder and run the application.

15. Demo

Once an application is up and running in tomcat server then hit this link into browser: http://localhost:8080/springmvc5-springdatajpa2-jsp-mysql-example/customer/showForm

On entering the URL, you will see the following page.

Add Customer page :

List of customers:

The source code of this tutorial is available on my GitHub repository.

Related Spring Tutorials

• Spring Boot 2 Tutorial

• Spring Core 5 Tutorial

• Spring MVC 5 Tutorial

• Spring Data JPA Tutorial

• Spring Framework 5