CODEWITHSUNDEEP
javajsonspring
mrchebik
mrchebik

Reputation: 109

RequestBody + JSON

I have problem with convert JSON to Java class.

Controller

@RequestMapping(value = "/{username}/add", method = POST)
    public void add(@RequestBody NoteModel note) {
        System.out.println(note.getTitle());
    }

JSON

{
    title : "Title",
    text : "Text"
}

NoteModel

public class NoteModel {
    private String title;
    private String text;

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getText() {
        return text;
    }

    public void setText(String text) {
        this.text = text;
    }
}

So, when I send json to the controller, Controller see same url, but can't deserialize JSON to Java (I think). Because, when I try, to send JSON - { title : "Title" }, and controller wait argument - @RequestBody String note, it can easily display it.

I'm try to do, what was in https://gerrydevstory.com/2013/08/14/posting-json-to-spring-mvc-controller/ and include adapter in servlet.xml, but was the same effect.

AJAX

$.ajax({
        type : "POST",
        contentType : "application/json; charset=utf-8",
        url : window.location.pathname,
        data : JSON.stringify({
            title : $("#titleId").val(),
            text : $("#textId").val()
        }),
        success: function () {
            $("#titleId").val("");
            $("#textId").val("");
        }
    })

Upvotes: 0

Views: 3265

Answers (3)

kussart
kussart

Reputation: 23

how to catch the problem: Send the String to your controller and try to create your object. Put breakpoint to objectMapper.readValue() and check what is the exactly problem; 

@RequestMapping(value = "/{username}/add", method = POST)
public void add(@RequestBody String note) {
    ObjectMapper objectMapper = new ObjectMapper();
    NoteModel noteModel = objectMapper.readValue(result, NoteModel.class);
}

I think that there is some conflict between default ObjectMapper and JSON mapper logic.

Upvotes: 0

Tharsan Sivakumar
Tharsan Sivakumar

Reputation: 6531

Add @RequestMapping(value = "/{username}/add", method = POST, produces = "application/json")

Upvotes: 1

sacgro
sacgro

Reputation: 469

Make sure that you have added content-type to "application/json" in header of your request.

Upvotes: 0

Related Questions