Java Excel导出功能-从jQuery对话框窗口

我需要创建从jQuery对话框窗口导出Excel的功能。我有一个锚定链接，点击它到Struts动作类的链接，从DB中提取数据并导出

我使用jQuery调用该方法，如：

public String method {
    -----------------
    method to call backend...
    --------------------------
    httpServletResponse.setContentType("application/vnd.ms-excel");
    String filename = filters.getPeriod() + "_" +filters.getRegion() ;
    httpServletResponse.setHeader("Content-disposition",
    "attachment; filename="+filename+".xls");
    ServletOutputStream outputStream = httpServletResponse.getOutputStream();
    outputStream.flush();
    return NONE; 
}

jQuery.ajax({
url:“”，
数据：“filters.productNbr”：$（“#productsTextArea1”）.val（）
});

Struts操作类：

public String method {
    -----------------
    method to call backend...
    --------------------------
    httpServletResponse.setContentType("application/vnd.ms-excel");
    String filename = filters.getPeriod() + "_" +filters.getRegion() ;
    httpServletResponse.setHeader("Content-disposition",
    "attachment; filename="+filename+".xls");
    ServletOutputStream outputStream = httpServletResponse.getOutputStream();
    outputStream.flush();
    return NONE; 
}

---

它返回

null

，但假设下载

xls

工作表。这里是否有可能实现Excel导出功能？

将二进制流返回到操作的输出：

String filename = filters.getPeriod() + "_" +filters.getRegion() ;
httpServletResponse.setContentType("application/octet-stream");
httpServletResponse.setHeader("Content-Disposition", "attachment; filename="+filename+".xls");
ServletOutputStream outputStream = httpServletResponse.getOutputStream();
Path fileIn = Paths.get(filename);
Files.copy(fileIn, outputStream); 
outputStream.flush();
return NONE; 

---

您的ajax url看起来很奇怪。