JSON post to Spring Controller

Question

Hi I am starting with Web Services in Spring, so I am trying to develop small application in Spring + JSON + Hibernate. I have some problem with HTTP-POST. I created a method:

@RequestMapping(value="/workers/addNewWorker", method = RequestMethod.POST, produces = "application/json", consumes = "application/json")
@ResponseBody
public String addNewWorker(@RequestBody Test test) throws Exception {
    String name = test.name;
    return name;
}

And my model Test looks like:

public class Test implements Serializable {

private static final long serialVersionUID = -1764970284520387975L;
public String name;

public Test() {
}
}

By POSTMAN I am sending simply JSON {"name":"testName"} and I always get error;

The server refused this request because the request entity is in a format not supported by the requested resource for the requested method.

I imported Jackson library. My GET methods works fine. I don't know what I'm doing wrong. I am grateful for any suggestions.

Answer 1

Convert your JSON object to JSON String using

JSON.stringify({"name":"testName"})

or manually. @RequestBody expecting json string instead of json object.

Note:stringify function having issue with some IE version, firefox it will work

verify the syntax of your ajax request for POST request. processData:false property is required in ajax request

$.ajax({ 
    url:urlName,
    type:"POST", 
    contentType: "application/json; charset=utf-8",
    data: jsonString, //Stringified Json Object
    async: false,    //Cross-domain requests and dataType: "jsonp" requests do not support synchronous operation
    cache: false,    //This will force requested pages not to be cached by the browser  
     processData:false, //To avoid making query String instead of JSON
     success: function(resposeJsonObject){
        // Success Action
    }
});

Controller

@RequestMapping(value = urlPattern , method = RequestMethod.POST)

public @ResponseBody Test addNewWorker(@RequestBody Test jsonString) {

    //do business logic
    return test;
}

@RequestBody -Covert Json object to java

@ResponseBody - convert Java object to json