<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>com.springmvcpractice</groupId>
<artifactId>springmvcpractice</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>springmvcpractice Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
<java.version>1.8</java.version>
<spring.version>5.3.33</spring.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- ================= SPRING ORM (Hibernate Integration) ================= -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- ================= HIBERNATE CORE ================= -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.6.15.Final</version>
</dependency>
<!-- ================= HIBERNATE ENTITY MANAGER (JPA) ================= -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>5.6.15.Final</version>
</dependency>
<!-- ================= JPA API ================= -->
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>javax.persistence-api</artifactId>
<version>2.2</version>
</dependency>
<!-- ================= DATABASE DRIVER (MySQL 8) ================= -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.33</version>
</dependency>
<!-- ================= HIBERNATE VALIDATOR (OPTIONAL) ================= -->
<dependency>
<groupId>org.hibernate.validator</groupId>
<artifactId>hibernate-validator</artifactId>
<version>6.2.5.Final</version>
</dependency>
<!-- JSTL for JSP pages -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- Servlet API -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<finalName>springmvcpractice</finalName>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.4.0</version>
</plugin>
<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.3.1</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.13.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>3.3.0</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.4.0</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>3.1.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>3.1.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
step2nd:
create disptacher servlet like this
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- Scan your single package -->
<context:component-scan base-package="com.scs.controllers"/>
<mvc:resources mapping="/resources/**" location="/resources/" />
<mvc:annotation-driven/>
<!-- ✅ DATASOURCE (MANDATORY) -->
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.cj.jdbc.Driver"/>
<property name="url"
value="jdbc:mysql://localhost:3306/mydb?useSSL=false&serverTimezone=UTC"/>
<property name="username" value="root"/>
<property name="password" value=""/>
</bean>
<!-- ✅ SESSION FACTORY -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="configLocation" value="classpath:hibernate.cfg.xml"/>
</bean>
<!-- ✅ TRANSACTION MANAGER -->
<bean id="transactionManager"
class="org.springframework.orm.hibernate5.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
<tx:annotation-driven/>
<!-- View resolver -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
step 3rd:
Web.xml
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<servlet>
<servlet-name>scs</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/scs-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>scs</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
step 4th hibernate.cfg.xml and it must be under /src/main/resources
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- ONLY Hibernate settings -->
<property name="hibernate.dialect">org.hibernate.dialect.MySQL8Dialect</property>
<property name="hibernate.show_sql">true</property>
<property name="hibernate.format_sql">true</property>
<property name="hibernate.hbm2ddl.auto">update</property>
<mapping class="com.scs.controllers.Employee"/>
</session-factory>
</hibernate-configuration>
step5th:
create model class for hibernate
package com.scs.controllers; import java.io.Serializable; import javax.persistence.*; @Entity @Table(name="employee") public class Employee implements Serializable{ private static final long serialVersionUID = -723583058586873479L; @Id @GeneratedValue(strategy=GenerationType.IDENTITY) private Integer empId; @Column(name="empname") private String empName; @Column(name="empaddress") private String empAddress; @Column(name="salary") private Long salary; @Column(name="empAge") private Integer empAge; public Integer getEmpId() { return empId; } public void setEmpId(Integer empId) { this.empId = empId; } public String getEmpName() { return empName; } public void setEmpName(String empName) { this.empName = empName; } public String getEmpAddress() { return empAddress; } public void setEmpAddress(String empAddress) { this.empAddress = empAddress; } public Long getSalary() { return salary; } public void setSalary(Long salary) { this.salary = salary; } public Integer getEmpAge() { return empAge; } public void setEmpAge(Integer empAge) { this.empAge = empAge; } }
package com.scs.controllers;
import java.util.*;
public interface EmployeeDao {
public void addEmployee(Employee employee);
public List<Employee> listEmployeess();
public Employee getEmployee(int empid);
public void deleteEmployee(Employee employee);
}
step7:
create EmpDao Implementation
package com.scs.controllers;
import java.util.List;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
@Repository
public class EmployeeDaoImpl implements EmployeeDao {
@Autowired
private SessionFactory sessionFactory;
public void addEmployee(Employee employee) {
sessionFactory.getCurrentSession().saveOrUpdate(employee);
}
@SuppressWarnings("unchecked")
public List<Employee> listEmployeess() {
return (List<Employee>) sessionFactory.getCurrentSession().createCriteria(Employee.class).list();
}
public Employee getEmployee(int empid) {
return (Employee) sessionFactory.getCurrentSession().get(Employee.class, empid);
}
public void deleteEmployee(Employee employee) {
sessionFactory.getCurrentSession().createQuery("DELETE FROM Employee WHERE empid = "+employee.getEmpId()).executeUpdate();
}
}
step7:
Create Empbean class
package com.scs.controllers;
public class EmpBean {
private Integer id;
private String name;
private Integer age;
private Long salary;
private String address;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public Long getSalary() {
return salary;
}
public void setSalary(Long salary) {
this.salary = salary;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
}
step9:
Create EmpService Interface
package com.scs.controllers;
import java.util.List;
public interface EmployeeService {
public void addEmployee(Employee employee);
public List<Employee> listEmployeess();
public Employee getEmployee(int empid);
public void deleteEmployee(Employee employee);
}
step 10:
Create EmpServiceImpl Class
package com.scs.controllers; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Propagation; import org.springframework.transaction.annotation.Transactional; @Service("employeeService") @Transactional(propagation = Propagation.SUPPORTS, readOnly = true) public class EmployeeServiceImpl implements EmployeeService { @Autowired private EmployeeDao employeeDao; @Transactional(propagation = Propagation.REQUIRED, readOnly = false) public void addEmployee(Employee employee) { employeeDao.addEmployee(employee); } public List<Employee> listEmployeess() { return employeeDao.listEmployeess(); } public Employee getEmployee(int empid) { return employeeDao.getEmployee(empid); } public void deleteEmployee(Employee employee) { employeeDao.deleteEmployee(employee); } }
package com.scs.controllers;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
@Controller
public class EmployeeController {
@Autowired
private EmployeeService employeeService;
@GetMapping(value = "/emp")
public ModelAndView Employee() {
return new ModelAndView("addemp","command",new EmpBean());
}
@RequestMapping(value = "/save", method = RequestMethod.POST)
public ModelAndView saveEmployee(@ModelAttribute("command")EmpBean employeeBean,
BindingResult result) {
Employee employee = prepareModel(employeeBean);
employeeService.addEmployee(employee);
return new ModelAndView("addemp","command",new EmpBean());
}
private Employee prepareModel(EmpBean employeeBean){
Employee employee = new Employee();
employee.setEmpAddress(employeeBean.getAddress());
employee.setEmpAge(employeeBean.getAge());
employee.setEmpName(employeeBean.getName());
employee.setSalary(employeeBean.getSalary());
employee.setEmpId(employeeBean.getId());
employeeBean.setId(null);
return employee;
}
@RequestMapping(value="/employees", method = RequestMethod.GET)
public ModelAndView listEmployees() {
System.out.println("size is "+employeeService.listEmployeess().size());
return new ModelAndView("employeesList").addObject("empdata",prepareListofBean(employeeService.listEmployeess()));
}
private List<EmpBean> prepareListofBean(List<Employee> employees){
List<EmpBean> beans = null;
if(employees != null && !employees.isEmpty()){
beans = new ArrayList<EmpBean>();
EmpBean bean = null;
for(Employee employee : employees){
bean = new EmpBean();
bean.setName(employee.getEmpName());
bean.setId(employee.getEmpId());
bean.setAddress(employee.getEmpAddress());
bean.setSalary(employee.getSalary());
bean.setAge(employee.getEmpAge());
beans.add(bean);
}
}
return beans;
}
}
create views under views folder
addemp.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 uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Spring MVC Form Handling</title>
</head>
<body>
<h2>Add Employee Data</h2>
<form:form method="POST" action="save">
<table>
<tr>
<td><form:label path="id">Employee ID:</form:label></td>
<td><form:input path="id" readonly="true"/></td>
</tr>
<tr>
<td><form:label path="name">Employee Name:</form:label></td>
<td><form:input path="name" /></td>
</tr>
<tr>
<td><form:label path="age">Employee Age:</form:label></td>
<td><form:input path="age" /></td>
</tr>
<tr>
<td><form:label path="salary">Employee Salary:</form:label></td>
<td><form:input path="salary" /></td>
</tr>
<tr>
<td><form:label path="address">Employee Address:</form:label></td>
<td><form:input path="address" /></td>
</tr>
<tr>
<td colspan="2"><input type="submit" value="Submit"/></td>
</tr>
</table>
</form:form>
<c:if test="${!empty employees}">
<h2>List Employees</h2>
<table align="left" border="1">
<tr>
<th>Employee ID</th>
<th>Employee Name</th>
<th>Employee Age</th>
<th>Employee Salary</th>
<th>Employee Address</th>
<th>Actions on Row</th>
</tr>
<c:forEach items="${employees}" var="employee">
<tr>
<td><c:out value="${employee.id}"/></td>
<td><c:out value="${employee.name}"/></td>
<td><c:out value="${employee.age}"/></td>
<td><c:out value="${employee.salary}"/></td>
<td><c:out value="${employee.address}"/></td>
<td align="center"><a href="edit.html?id=${employee.id}">Edit</a> | <a href="delete.html?id=${employee.id}">Delete</a></td>
</tr>
</c:forEach>
</table>
</c:if>
</body>
</html>
employeelist.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8" isELIgnored="false" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1>List Employees</h1>
<h3><a href="emp">Add More Employee</a></h3>
<c:if test="${!empty empdata}">
<table align="left" border="1">
<tr>
<th>Employee ID</th>
<th>Employee Name</th>
<th>Employee Age</th>
<th>Employee Salary</th>
<th>Employee Address</th>
</tr>
<c:forEach items="${empdata}" var="employee">
<tr>
<td><c:out value="${employee.id}"/></td>
<td><c:out value="${employee.name}"/></td>
<td><c:out value="${employee.age}"/></td>
<td><c:out value="${employee.salary}"/></td>
<td><c:out value="${employee.address}"/></td>
</tr>
</c:forEach>
</table>
</c:if>
</body>
</html>
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