CODEWITHSUNDEEP
javaweb-servicesrestjerseyjax-rs
Selva
Selva

Reputation: 1670

How to get form parameters as object in restful webservice

I have a login form with two values name and password. I pass this value as in my rest service. I get this value in my rest service using FormParam annotation. But, my requirement is to get that values as a class. I tried below methodology. But it's not work and shows the compile time error: @Form cannot be resolved to a type.

@POST
@Path("login")
@Produces(MediaType.TEXT_PLAIN)
public String login(@Form User form) {
     return "Logged with " + form.email + " " + form.password;
}

public class User {

      @FormParam("email")
      private String email;

      @FormParam("password")
      private String password;

}

My form is

<form method="POST" action="rest/login">


Email Address: <input type="text" name="email">
<br>
Password: <input type="text" name="password">
<input type="submit">


</form>

How to receive form value as object?

Upvotes: 3

Views: 10891

Answers (2)

Pramod Karandikar
Pramod Karandikar

Reputation: 5329

If your requirement is only to have the data in the form of an object, you can call your ReST service by passing a JSON request:

ReST method 

@POST
@Consumes(MediaType.APPLICATION_JSON)
public String login(User form) {
// access values from inputObject
form.getEmail();
form.getPassword();
}

User class

import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement
public class User {

      private String email;
      private String password;

      //getters and setters

    }

You need to use Jackson feature for overcoming MessageBody related error. If you are using Jackson version 2.x BELOW, you'll need to register Jackson feature in your web.xml file. 

<init-param>
    <param-name>com.sun.jersey.api.json.POJOMappingFeature</param-name>
    <param-value>true</param-value>
</init-param>

In case of Jackson version 2.x and above, only add Jackson 2.x jars. The above mentioned snippet won't be required in web.xml

Upvotes: 0

Juned Ahsan
Juned Ahsan

Reputation: 68715

You need to use @RequestParam even if it is a composite Java object. So change this

 public String login(@Form User form)

to

 public String login(@RequestParam("form") User form)

You just need to send user details under "form" param from client.

Upvotes: 1

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