Spring MVC Form Handling Example - Spring MVC Framework

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What is Spring MVC Form Handling Example?

The below example explains the readers on how to write a web based application with the use of HTML forms with Spring Web MVC framework. Firstly, a working Eclipse IDE should be in place and follow the steps below to create a Dynamic Form based Web Application.

Step	Description
1	Create a project with a nameHelloWebunder a packagecom.wisdomjobsas explained in theSpring MVC - Hello World Examplechapter.
2	Create a Java classesStudent,StudentControllerunder thecom.wisdomjobspackage.
3	Create a view filesstudent.jsp,result.jspunderjspsub-folder.
4	The final step is to create the content of all the source and configuration files and export the application as explained below.

Student.java

package com.wisdomjobs; public class Student { private Integer age; private String name; private Integer id; public void setAge(Integer age) { this.age = age; } public Integer getAge() { return age; } public void setName(String name) { this.name = name; } public String getName() { return name; } public void setId(Integer id) { this.id = id; } public Integer getId() { return id; } }

StudentController.java

package com.wisdomjobs; import org.springframework.stereotype.Controller; 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; import org.springframework.ui.ModelMap; @Controller public class StudentController { @RequestMapping(value = "/student", method = RequestMethod.GET) public ModelAndView student() { return new ModelAndView("student", "command", new Student()); } @RequestMapping(value = "/addStudent", method = RequestMethod.POST) public String addStudent(@ModelAttribute("SpringWeb")Student student, ModelMap model) { model.addAttribute("name", student.getName()); model.addAttribute("age", student.getAge()); model.addAttribute("id", student.getId()); return "result"; } }

In the above example, we are creating a service method called student(). We are passing a blank Student object in ModelAndView object. In this object, command name is specified because the framework expects an object with “command” name if we are using <form:form> tags in JSP file. Student.jsp view is returned if student() method is called.

addStudent() is the next method which is called against a POST method on HelloWeb/addStudent URL. Model object is prepared based on the submitted information. A “result” view is returned from service method at the end which results in showing result.jsp.

student.jsp

<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%> <html> <head> <title>Spring MVC Form Handling</title> </head> <body> <h2>Student Information</h2> <form:form method="POST" action="/HelloWeb/addStudent"> <table> <tr> <td><form:label path="name">Name</form:label></td> <td><form:input path="name" /></td> </tr> <tr> <td><form:label path="age">Age</form:label></td> <td><form:input path="age" /></td> </tr> <tr> <td><form:label path="id">id</form:label></td> <td><form:input path="id" /></td> </tr> <tr> <td colspan="2"> <input type="submit" value="Submit"/> </td> </tr> </table> </form:form> </body> </html>

result.jsp

<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%> <html> <head> <title>Spring MVC Form Handling</title> </head> <body> <h2>Submitted Student Information</h2> <table> <tr> <td>Name</td> <td>${name}</td> </tr> <tr> <td>Age</td> <td>${age}</td> </tr> <tr> <td>ID</td> <td>${id}</td> </tr> </table> </body> </html>

Once the source and configuration files are created export the application. Do right click on the application and Export> WAR File option and save HelloWeb.war file in Tomcat’s webapps folder.

Start the Tomcat Server and using a standard browser check if you are having access to other web pages from webapps folder. Try the URL http://localhost:8080/HelloWeb/index and you must see the below result if everything is fine with Spring Web Application:

Spring Student Form

Submit the form once the required information is filled. You must see the below result if everything is fine with Spring Web Application:

Spring Student Form Result

« Previous Topics
Spring Mvc Hello World Example
Spring Mvc Environment Setup
Spring Mvc Framework Overview

Next Topics »
Spring Mvc Page Redirection Example
Spring Mvc Static Pages Example
Spring Mvc Text Box Example

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Spring MVC Form Handling Example - Spring MVC Framework

What is Spring MVC Form Handling Example?

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