未在jQuery AJAX中下载Servlet输出流

我有以下代码

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {

    response.setContentType("text/csv;charset=UTF-8");

    try (PrintWriter out = response.getWriter()) {

        String headerKey = "Content-Disposition";
        String headerValue = String.format("attachment; filename=\"%s\"", "prueba.csv");
        response.setHeader(headerKey, headerValue);

        out.println("test");

        OutputStream outStream = response.getOutputStream();
        outStream.flush();
        outStream.close();
    }

}

当我从URLlocalhost:8080/downloadServlet调用servlet时，它会下载一个.CSV文件，但当我从$.ajax post请求调用servlet时，它就不起作用了

这是我的$.ajax代码

$.ajax({
    url: "downloadServlet",
    type: "post",
    data: {id: 1, pass: "123"},
    error : function (xhr, ajaxOptions, thrownError) {
        alert(xhr.status);
        alert(thrownError);
    }
});

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如何使用$.ajax下载SERVLET OutputStream？

我也面临同样的问题：(