fuck3.js

$(function () {

    $("#b").click(testPOST);
    
    var exportUrl = 'http://localhost:7801/';

    function testPOST() {
        
        var options = {
            "xAxis": {
                "categories": ["Jan", "Feb", "Mar","Apr"]
            },
                "series": [{
                "data": [101.1, 71.5, 106.4]
            }]
        };
        var send_json = {
            "type": "image/png",
            "width": 400,
            "b64": true,
            "options": options
        };


      
        $.ajax({
            type: 'POST',
            contentType: "application/json; charset=utf-8",
            url: exportUrl,
            data: JSON.stringify(send_json),
            mimeType: "text/plain; charset=x-user-defined",
            success: function (data) {
                debugger;
                console.log('get the file from relative url: ', data);
                $('#container').html('<img src="data:image/jpeg;base64,' + data + '"/>');
            },
            error: function (err) {
                console.log('error', err.statusText);
            }
        });

    }

});