My REST controller expects request input of the following format, which it successfully converts to a Java object containing a Map and a String as parameters:

{ 

myMap : { 

    key1: value1, 

    key2: value2, 

    key3: value3},

myString: string value

}

I am getting my data from an html form like so:

var myMap = new Map();

var String = document.getElementById('String').value;

for (var i = 0 ; i<anArray.length ; i++){

    var input = document.getElementsByClassName('input_' + (i+1));

    for (var j = 0 ; j<3 ; j++){

        if (input[j].checked){

            myMap.set(input[j].name, input[j].id);

        }

    }

}

Basically, this code boils down to:

var myMap = new Map();

myMap.set(key1, value1);

myMap.set(key2, value2);

myMap.set(key3, value3);

This results in a map containing {key1 => value1, key2 => value2, etc} and a String. I have been trying to turn this into a json string like so, but it doesn't seem to work:

var myJson = {};

myJson.myMap = myMap;

myJson.myString = myString;

var json = JSON.stringify(myJson);

However, I am ending up with the following string: `{myMap:{},String:myString}' . So I probably have to do something different to stringify a map, but nothing I try is working.

Can anyone help me out?