CODEWITHSUNDEEP
javajsonpostspring-boot
Ricky
Ricky

Reputation: 2750

Post JSON to backend

I am developing a spring boot application and now want to post the user details into the backend.I am posting a Json data to the backend by following code:

@RestController
    public class  DataInsertController {


        @RequestMapping(value = "data/api", consumes={MediaType.APPLICATION_JSON_VALUE},method = RequestMethod.POST)
        public ResponseEntity<HostResponse> createAuthenticationToken(@RequestBody Host host )  {

            System.out.println(host.getName());

            return ResponseEntity.ok(new HostResponse("token"));
        }

    }

My Object class is like 

import java.io.Serializable;

public class Host implements Serializable{

private static final long serialVersionUID = -8445943548965154778L;


private String name;
private String email;
public Host(){
    super();
}
  public Host(String name, String email) {
        this.setName(name);
        this.setEmail(email);
    }

public String getName() {
    return name;
}
public void setName(String name) {
    this.name = name;
}
public String getEmail() {
    return email;
}
public void setEmail(String email) {
    this.email = email;
}


}

I am posting the data like 

{
"name": "user01",
"email":"[email protected]"
}

from my Rest Client.But data is not printed in the backend. Any help is appreciated.

Upvotes: 0

Views: 1955

Answers (3)

Akhil Menon
Akhil Menon

Reputation: 306

If you are using Postman to send data then send data in body part instead of header as you have used @RequestBody to get the data.

This will solve your problem

Upvotes: 1

ian1095
ian1095

Reputation: 579

You need to annotate your class with the Jackson Annotations else it won't know which field to deserialise:

@JsonCreator
  public Host((@JsonProperty("name")String name,@JsonProperty("email") String email) {
        this.setName(name);
        this.setEmail(email);
    }

Upvotes: 1

M2E67
M2E67

Reputation: 970

I use so effective solution to get post body as json. you can get body as string and convert it to your obejct(Host class) by using ObjectMapper as follow :

@RestController
    public class  DataInsertController {


        @RequestMapping(value = "data/api", consumes={MediaType.APPLICATION_JSON_VALUE},method = RequestMethod.POST)
        public ResponseEntity<HostResponse> createAuthenticationToken(@RequestBody Map<String,Object> hostMap )  {

             // handle json object exceptions to validate input
            JSONObject jsonObject = new JSONObject(hostMap);            
            Host host = new ObjectMapper().readValue(jsonObject.toString()  , Host.class);

            System.out.println(host.getName());
            return ResponseEntity.ok(new HostResponse("token"));
        }
}

Upvotes: 1

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