Spring Web MVC framework to demonstrate how to utilize Listbox in forms. Let's start by setting up an Eclipse IDE and then following the steps to create a Dynamic Form-based Web Application utilizing the Spring Web Framework.
The items are listed in the Spring MVC form Listbox. This tag creates a select element in HTML. It allows you to bind data to the element you've chosen.
Syntax:
<form:select path="name">
Here are some more tags that may be used to narrow down the selections.
A. Option tag: The HTML option tag is generated by this tag. Each tag has a value that the user can choose from.
<form:option value="abc" label="xyz"/>
B. Options tag: A list of HTML option tags is generated by this tag. Each tag has a list of components that the user has chosen.
<form:options items="${elementList}" itemValue="abc" itemLabel="xyz"/> Spring MVC - Listbox
The project Structure is as follows:
Implementation:
Step 1: Add dependencies to the pom.xml file.
File: pom.xml
XML <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.geeksforgeeks</groupId> <artifactId>SpringMVC</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>SpringMVC Maven Webapp</name> <url>http://maven.apache.org</url> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>5.1.1.RELEASE</version> </dependency> <!-- https://mvnrepository.com/artifact/org.apache.tomcat/tomcat-jasper --> <dependency> <groupId>org.apache.tomcat</groupId> <artifactId>tomcat-jasper</artifactId> <version>9.0.12</version> </dependency> <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api --> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>3.0-alpha-1</version> </dependency> <!-- https://mvnrepository.com/artifact/javax.servlet/jstl --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> </dependencies> <build> <finalName>SpringMVC</finalName> </build> </project>
Step 2: Create the bean class
File: Reservation.java
Java // Java Program to Illustrate Reservation Class package com.geeksforgeeks; // Class public class Reservation { // Class data members private String firstName; private String lastName; private String Gender; private String[] Food; private String cityFrom; private String cityTo; // Constructor public Reservation() {} // Getters and Setters public String getFirstName() { return firstName; } public void setFirstName(String firstName) { // this keyword refers to current instance itself this.firstName = firstName; } // Getters and Setters public String getLastName() { return lastName; } public void setLastName(String lastName) { this.lastName = lastName; } // Getters and Setters public String getGender() { return Gender; } public void setGender(String gender) { Gender = gender; } // Getters and Setters public String[] getFood() { return Food; } public void setFood(String[] food) { Food = food; } public String getCityFrom() { return cityFrom; } public void setCityFrom(String cityFrom) { this.cityFrom = cityFrom; } // Getters and Setters public String getCityTo() { return cityTo; } public void setCityTo(String cityTo) { this.cityTo = cityTo; } } Step 3: Create the controller class
File: ReservationController.java
Java // Java Program to Illustrate ReservationController Class package com.geeksforgeeks; // Importing required classes import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.ModelAttribute; import org.springframework.web.bind.annotation.RequestMapping; // Annotation @RequestMapping("/reservation") @Controller // Class public class ReservationController { @RequestMapping("/bookingForm") // Method public String bookingForm(Model model) { Reservation res = new Reservation(); model.addAttribute("reservation", res); return "reservation-page"; } // Annotation @RequestMapping("/submitForm") // Method public String submitForm(@ModelAttribute("reservation") Reservation res) { return "confirmation-form"; } } Step 4: Provide the entry of controller in the web.xml file
File: web.xml
Java <?xml version="1.0" encoding="UTF-8"?> <web-app> <display-name>SpringMVC</display-name> <servlet> <servlet-name>spring</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>spring</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
Step 5: Define the bean in the XML file
File: spring-servlet.xml
XML <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <!-- Add support for component scanning --> <context:component-scan base-package="com.geeksforgeeks" /> <!--Add support for conversion, formatting and validation --> <mvc:annotation-driven/> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/"></property> <property name="suffix" value=".jsp"></property> </bean> </beans>
Step 6: Create the requested page
File: index.jsp
HTML <!DOCTYPE html> <html> <head> <title>Railway Reservation System</title> </head> <body> <a href="reservation/bookingForm">GFG Railway Reservation System.</a> </body> </html>
Step 7: Create the view components
File: reservation-page.jsp
HTML <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %> <!DOCTYPE html> <html> <head> <title>Reservation Form</title> </head> <h3>Railway Reservation Form</h3> <body> <form:form action="submitForm" modelAttribute="reservation"> First name: <form:input path="firstName" /> <br><br> Last name: <form:input path="lastName" /> <br><br> Gender: Male<form:radiobutton path="Gender" value="Male"/> Female<form:radiobutton path="Gender" value="Female"/> <br><br> Meals: BreakFast<form:checkbox path="Food" value="BreakFast"/> Lunch<form:checkbox path="Food" value="Lunch"/> Dinner<form:checkbox path="Food" value="Dinner"/> <br><br> Leaving from: <form:select path="cityFrom"> <form:option value="Delhi" label="Delhi"/> <form:option value="Noida" label="Noida"/> <form:option value="Amritsar" label="Amritsar"/> </form:select> <br><br> Going to: <form:select path="cityTo"> <form:option value="Mumbai" label="Mumbai"/> <form:option value="Pune" label="Pune"/> <form:option value="Nashik" label="Nashik"/> </form:select> <br><br> <input type="submit" value="Submit" /> </form:form> </body> </html>
File: confirmation-page.jsp
HTML <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%> <!DOCTYPE html> <html> <body> <p>Geeksforgeeks reservation is confirmed successfully.</p> First Name : ${reservation.firstName} <br> Last Name : ${reservation.lastName} <br> Gender: ${reservation.gender}<br> Meals: <ul> <c:forEach var="meal" items="${reservation.food}"> <li>${meal}</li> </c:forEach> </ul> Leaving From : ${reservation.cityFrom} <br> Going To : ${reservation.cityTo} </body> </html>
Output:
Click on the link and you will see the following output
Select other Listbox
At the last, this output will be shows
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