Ajax Delivery array background does not receive data problem solving method __ajax

Problem Description:
Front end uses Ajax to submit data to the background

$.ajax ({
        URL: '/xxxx.ajax ', method
        : ' Get ',
        data: {
            ids:[1,2,3,4,5,6]
        },
        dataType: ' JSON ',
        success:function (data) {

        }
    });

Use array to receive parameters in SPRINGMVC:

@RequestMapping ("/xxx.ajax") public
Response Delete (long[] IDs) {
    ...
}

However, the IDs array is printed out and always empty.

Reason Analysis:
When Ajax passes parameters, the default depth serializes the parameters, so you need to set the traditional argument to true, and do a general serialization

Workaround:

$.ajax ({
        URL: '/xxxx.ajax ', method
        : ' Get ',
        data: {
            ids:[1,2,3,4,5,6]
        },
        Traditional : True
        success:function (data) {

        }
});