How to create a POST request in REST to accept a JSON input?
I am trying to learn RESTful web services. And am creating a simple set of web services. Got stuck when I started working on POST.
I want to pass JSON input to a POST method. This is what I did in the code:
@RequestMapping(value = "/create", method = RequestMethod.POST, consumes="application/x-www-form-urlencoded", produces="text/plain")
@ResponseStatus(HttpStatus.CREATED)
public @ResponseBody String createChangeRequest(MyCls mycls) {
return "YAHOOOO!!";
}
I included Jackson in my POM.xml.
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-lgpl</artifactId>
<version>1.9.13</version>
</dependency>
MyCls is a simple class with a few getters and setters.
I am calling the above POST service from chrome's simple REST client.
URL: http://localhost:8080/MYWS/cls/create
Data: {<valid-json which corresponds to each variable in the MyCls pojo}
I see the below response:
415 Unsupported Media Type
The server refused this request because the request entity is in a format not supported by the requested resource for the requested method.
I tried adding header as "application/json" in the POST request in the REST client - but that did not help.
Can someone let me know what I am missing here? How can I automatically map my input JSON to the MyCls pojo? Am I missing any configuration here?
Edit: MyCls.java
public class MyCls{
private String name;
private String email;
private String address;
public String getName() {
return name;
}
public void setName(String name) {
name= name;
}
---similar getter and setter for email, address--
}
json from chrome Simple REST Client:
{"name":"abc", "email":"de@test","address":"my address"}
Edit: Changed my controller method to the following, but still see the same error:
@RequestMapping(value = "/create", method = RequestMethod.POST, consumes="application/json", produces="text/plain")
@ResponseStatus(HttpStatus.CREATED)
public @ResponseBody String createChangeRequest(@RequestBody MyCls mycls) {
return "YAHOOOO!!";
}
Assuming your client is sending application/json as its content type, then a handler mapped to
consumes="application/x-www-form-urlencoded"
will not be able to handle it. The actual Content-type doesn't match the expected.
If you are expecting application/json , you should instead have
consumes="application/json"
Also, declaring
public @ResponseBody String createChangeRequest(MyCls mycls) {
is (in default environment) equivalent to
public @ResponseBody String createChangeRequest(@ModelAttribute MyCls mycls) {
This means the MyCls object is created from request parameters, not from JSON body. Instead, you should have
public @ResponseBody String createChangeRequest(@RequestBody MyCls mycls) {
so that Spring deserializes your JSON to an object of type MyCls .