Dinesh on Java

REST

JAX-RS @FormParam example

In this tutorial we will discuss about @FormParam, In JAX-RS, you can use @FormParam annotation to bind HTML form parameters value to a Java method. The following example show you how to do it :
1. HTML Form
See a simple HTML form with “post” method.

<html>
<body>
 <h1>JAX-RS @FormQuery Testing</h1>
 
 <form action="doj/employee/add" method="post">
  <p>
   Employee Name : <input type="text" name="empname" />
  </p>
  <p>
   Employee Age : <input type="text" name="empage" />
  </p>
  <input type="submit" value="Add Employee" />
 </form>
 
</body>
</html>

2. @FormParam Example

Example to use @FormParam to get above HTML form parameter values.

package com.dineshonjava.ws.rest;

import java.util.List;

import javax.ws.rs.DefaultValue;
import javax.ws.rs.FormParam;
import javax.ws.rs.GET;
import javax.ws.rs.MatrixParam;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriInfo;

/**
 * @author Dinesh Rajput
 *
 */
@Path("/employee")
public class EmployeeController {
 
 
 @POST
  @Path("/add")
  public Response addEmployee(
    @FormParam("empname") String empname,
    @FormParam("empage") int empage) {
  
   return Response.status(200)
    .entity("addEmployee is called, employee name : " + empname + ", employee age : " + empage)
    .build();
  
  }
}

3. Now access the following urls.

http://localhost:8181/sdnext/userform.html

When “Add Employee” button is clicked, it will redirect to URL :
http://localhost:8181/sdnext/doj/employee/add

Download SourceCode
JAX-RS @FormParam example.zip

References
1. JAVA REST Web Services
2. Wikipedia for REST Web Service

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Dinesh Rajput

Dinesh Rajput is the chief editor of a website Dineshonjava, a technical blog dedicated to the Spring and Java technologies. It has a series of articles related to Java technologies. Dinesh has been a Spring enthusiast since 2008 and is a Pivotal Certified Spring Professional, an author of a book Spring 5 Design Pattern, and a blogger. He has more than 10 years of experience with different aspects of Spring and Java design and development. His core expertise lies in the latest version of Spring Framework, Spring Boot, Spring Security, creating REST APIs, Microservice Architecture, Reactive Pattern, Spring AOP, Design Patterns, Struts, Hibernate, Web Services, Spring Batch, Cassandra, MongoDB, and Web Application Design and Architecture. He is currently working as a technology manager at a leading product and web development company. He worked as a developer and tech lead at the Bennett, Coleman & Co. Ltd and was the first developer in his previous company, Paytm. Dinesh is passionate about the latest Java technologies and loves to write technical blogs related to it. He is a very active member of the Java and Spring community on different forums. When it comes to the Spring Framework and Java, Dinesh tops the list!