<form id ="submitForm" method="post">
</form>

JS:

var arr=多個檔案的檔名以逗號隔開;
$("#submitForm").attr("action","<%=request.getContextPath()%>/Pe03/toDownLoad?ape505="+arr);
$("#submitForm").submit();

java:

//下載附件
@SystemControllerLog(description="下載附件")
@RequestMapping("/toDownLoad")
@ResponseBody
 
public void downPrintLodopFile(String [] ape505,HttpServletRequest request, HttpServletResponse response) throws Exception{
    //獲得檔案路徑
    String realPath = request.getSession().getServletContext().getRealPath("/upload/預警處理模組上傳目錄/");
    for(int i=0;i<ape505.length-1;i++){
        ape505[i]=realPath+ape505[i];
    }
    
 
//執行down
    down(realPath, ape505, request, response);
}
public void down(String path, String[] files, HttpServletRequest request, HttpServletResponse response) throws Exception {
    // path 壓縮檔案初始設定
    // 拼接zip檔案,之後下載下來的壓縮檔案的名字
    String base_name = "附件";
    String fileZip = base_name + ".zip";
    // 之後用來生成zip檔案
 

    String filePath = path + fileZip;


    // 建立臨時壓縮檔案
    try {
        BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(filePath));
        ZipOutputStream zos = new ZipOutputStream(bos);
        ZipEntry ze = null;
        // 將所有需要下載的檔案都寫入臨時zip檔案
        for (int i = 0; i < files.length-1; i++) {
            BufferedInputStream bis = new BufferedInputStream(
                    new FileInputStream(files[i]));
            ze = new ZipEntry(
                    files[i].substring(files[i].lastIndexOf("\\")));
            zos.putNextEntry(ze);
            int s = -1;
            while ((s = bis.read()) != -1) {
                zos.write(s);
            }
            bis.close();
        }
        zos.flush();
        zos.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
    // 以上，臨時壓縮檔案建立完成


    // 進行瀏覽器下載
    // 獲得瀏覽器代理資訊
    String agent = request.getHeader("User-Agent").toUpperCase();
    // 判斷瀏覽器代理並分別設定響應給瀏覽器的編碼格式
    String finalFileName = null;
    if ((agent.indexOf("MSIE") > 0)
            || ((agent.indexOf("RV") != -1) && (agent.indexOf("FIREFOX") == -1)))
        finalFileName = URLEncoder.encode(fileZip, "UTF-8");
    else {
        finalFileName = new String(fileZip.getBytes("UTF-8"), "ISO8859-1");
    }
    // 告知瀏覽器下載檔案，而不是直接開啟，瀏覽器預設為開啟
    response.setContentType("application/x-download");
    response.setHeader("Content-Disposition", "attachment;filename=\""
            + finalFileName + "\"");// 下載檔案的名稱
    //輸出到本地
    ServletOutputStream servletOutputStream = response.getOutputStream();
    DataOutputStream temps = new DataOutputStream(servletOutputStream);


    // 瀏覽器下載臨時檔案的路徑
    DataInputStream in = new DataInputStream(new FileInputStream(filePath));
    byte[] b = new byte[2048];
    // 之後用來刪除臨時壓縮檔案
    File reportZip = new File(filePath);
    try {
        while ((in.read(b)) != -1) {
            temps.write(b);
        }
        temps.flush();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (temps != null) {
            temps.close();
        }
        if (in != null) {
            in.close();
        }
        // 刪除伺服器本地產生的臨時壓縮檔案
        if (reportZip != null){
            reportZip.delete();
        }
        servletOutputStream.close();
    }
}