Firefox 不会将此文件下载为 CSV

发布于 2024-10-20 07:12:26 字数 3207 浏览 3 评论 0原文

我已经尝试了我能想到的一切。我已经改变了 mime 类型 100 次。更改标题 400 次。我已经查看了堆栈溢出流十几次。这在 Chrome 中运行良好。当我在 Firefox 中下载时,它认为这是一个 xlsx 文件或二进制文件。它甚至以 xlsx 格式打开,但它不认为它是 csv,因此列没有分开。如果我保存文件(而不是直接打开),它甚至不会添加扩展名。我什至还没有接触过 IE,所以这让我有点担心。

    mime mapping
   <mime-mapping>
        <extension>csv</extension>
        <mime-type>application/vnd.ms-excel</mime-type>
    </mime-mapping> 

我尝试过文本/csv、应用程序/csv、应用程序/二进制、应用程序/八位字节流。

public void doDownloadFile() {

            PrintWriter out = null;

            try {

                String fileName = selectedPkgLine.getShortname() + ".csv";

                HttpServletResponse response = (HttpServletResponse) FacesContext.getCurrentInstance().getExternalContext().getResponse();
                HttpServletRequest request = (HttpServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest();

                response.setHeader("Pragma", "public");
                response.setHeader("Expires", "0");
                response.setContentType(request.getServletContext().getMimeType(fileName));
                response.setHeader("Cache-Control", "must-revalidate, post-check=0, pre-check=0");
                response.setHeader("Content-disposition", "attachment; filename=" + fileName + "");
                response.setHeader("Content-Transfer-Encoding", "binary");

                out = response.getWriter();
                CSVWriter writer = new CSVWriter(out);

                List<PkgLoad> pkgLoadList = pkgLoadService.findBetweenDates(selectedPkgLine, startDate, endDate);

                List<String[]> stringList = new ArrayList<String[]>();
                stringList.clear();

                String[] header = {
                    "pkg_load_id",
                    "time_stamp",
                    "ounces",
                    "revolutions",
                    "wrap_spec_id",
                    "pkg_line_id"
                };

                stringList.add(header);

                for (PkgLoad pkgLoad : pkgLoadList) {

                    String[] string = {
                        pkgLoad.getPkgLoadId().toString(),
                        pkgLoad.getTimeStamp().toString(),
                        pkgLoad.getOunces().toString(),
                        pkgLoad.getRevolutions().toString(),
                        pkgLoad.getWrapSpecId().getWrapSpecId().toString(),
                        pkgLoad.getPkgLineId().getPkgLineId().toString()
                    };
                    stringList.add(string);
                }

                response.setHeader("Content-length", String.valueOf(stringList.size()));


                writer.writeAll(stringList);
                out.flush();

            } catch (IOException ex) {
                Logger.getLogger(ViewLines.class.getName()).log(Level.SEVERE, null, ex);
            } finally {
                out.close();
            }
        }

感谢您的任何帮助。

Safari、Opera 和 Chrome 运行良好。没试过IE。

****编辑****

好吧,这一直是一个间距问题。我的文件名是“文件名.csv”,这适用于除 Firefox 之外的所有浏览器。当我将文件名设置为“filename.csv”时,它会下载并找到没有空格的文件名。我没有注意到,当它下载时,它只下载了空格之前的名称的第一部分。祝你好运!

I have tried everything I can think of. I have changed the mime type 100 times. Changed the headers 400 times. I've looked through stack over flow a dozen times. This works fine in Chrome. Soon as I go to download in Firefox it thinks it's a xlsx file, or a binary file. It even opens as an xlsx but it doesn't think it's a csv so the columns aren't seperated. If I save the file(instead of just hit open) it doesn't even put the extension on. I haven't even got to IE yet so this is kind of worrying me.

    mime mapping
   <mime-mapping>
        <extension>csv</extension>
        <mime-type>application/vnd.ms-excel</mime-type>
    </mime-mapping> 

I've tried text/csv, application/csv, application/binary, application/octet-stream.

public void doDownloadFile() {

            PrintWriter out = null;

            try {

                String fileName = selectedPkgLine.getShortname() + ".csv";

                HttpServletResponse response = (HttpServletResponse) FacesContext.getCurrentInstance().getExternalContext().getResponse();
                HttpServletRequest request = (HttpServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest();

                response.setHeader("Pragma", "public");
                response.setHeader("Expires", "0");
                response.setContentType(request.getServletContext().getMimeType(fileName));
                response.setHeader("Cache-Control", "must-revalidate, post-check=0, pre-check=0");
                response.setHeader("Content-disposition", "attachment; filename=" + fileName + "");
                response.setHeader("Content-Transfer-Encoding", "binary");

                out = response.getWriter();
                CSVWriter writer = new CSVWriter(out);

                List<PkgLoad> pkgLoadList = pkgLoadService.findBetweenDates(selectedPkgLine, startDate, endDate);

                List<String[]> stringList = new ArrayList<String[]>();
                stringList.clear();

                String[] header = {
                    "pkg_load_id",
                    "time_stamp",
                    "ounces",
                    "revolutions",
                    "wrap_spec_id",
                    "pkg_line_id"
                };

                stringList.add(header);

                for (PkgLoad pkgLoad : pkgLoadList) {

                    String[] string = {
                        pkgLoad.getPkgLoadId().toString(),
                        pkgLoad.getTimeStamp().toString(),
                        pkgLoad.getOunces().toString(),
                        pkgLoad.getRevolutions().toString(),
                        pkgLoad.getWrapSpecId().getWrapSpecId().toString(),
                        pkgLoad.getPkgLineId().getPkgLineId().toString()
                    };
                    stringList.add(string);
                }

                response.setHeader("Content-length", String.valueOf(stringList.size()));


                writer.writeAll(stringList);
                out.flush();

            } catch (IOException ex) {
                Logger.getLogger(ViewLines.class.getName()).log(Level.SEVERE, null, ex);
            } finally {
                out.close();
            }
        }

Thanks for any help.

Safari, Opera and Chrome work fine. Haven't tried IE.

****EDIT****

Ok this entire time it was a spacing issue. My file name was "file name.csv" and this works in every browser except firefox. Soon as I put my file name to "filename.csv with no spaces it downloaded it find. I didn't notice that when it was downloading it was only downloading the first part of the name before the space. Good luck!

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评论(6

玻璃人 2024-10-27 07:12:26

我在 PHP 中遇到了同样的问题,发现为文件名添加双引号可以解决问题。

 response.setHeader("Content-disposition", "attachment; filename=\"" + fileName + \"");

I had the same issue in PHP and found adding double quotes for the file name fixes the problem.

 response.setHeader("Content-disposition", "attachment; filename=\"" + fileName + \"");
云朵有点甜 2024-10-27 07:12:26

内容类型 text/csv 是正确的,但您还应该添加字符集编码:

response.setHeader("Content-type: text/csv; charset=utf-8");

但这到底是什么:

response.setHeader("Content-Transfer-Encoding", "binary");
response.setHeader("Content-length", String.valueOf(stringList.size()));

删除标头!内容长度以字节为单位。不要尝试自己计算。在这个例子中它绝对是错误的!主要类型为 text 的 Mime-Type 不是二进制的!

The content type text/csv is correct, but you should also add an charset encoding:

response.setHeader("Content-type: text/csv; charset=utf-8");

But what the hell is this:

response.setHeader("Content-Transfer-Encoding", "binary");
response.setHeader("Content-length", String.valueOf(stringList.size()));

Remove that headers! The content length is in bytes. Do not try to calculate it by yourself. It is definitly wrong in this example! A Mime-Type with major type text is not binary!

可是我不能没有你 2024-10-27 07:12:26

好吧,这一直是一个间距问题。我的文件名是“文件名.csv”,这适用于除 Firefox 之外的所有浏览器。当我将我的文件名放入“filename.csv”时,它会下载它,它没有空格。我没有注意到,当它下载时,它只下载空格之前的名称的第一部分。

将来确保 需要文件名中的空格,这将允许 Firefox 正确下载它(不会删除空格后面的任何内容)。

文件名在标题中带有单引号。如果您

Ok this entire time it was a spacing issue. My file name was "file name.csv" and this works in every browser except firefox. Soon as I put my file name to "filename.csv with no spaces it downloaded it find. I didn't notice that when it was downloading it was only downloading the first part of the name before the space.

In the future make sure the filename has a single quote around it in the header. This will allow Firefox to download it correctly(without stripping off anything past the space) if you need a space the file name.

Good luck!

木槿暧夏七纪年 2024-10-27 07:12:26

添加带有值 text/csv 的内容类型标题

response.setHeader("Content-type: text/x-csv");

Add the content-type header with value text/csv

response.setHeader("Content-type: text/x-csv");
入怼 2024-10-27 07:12:26

Response.AddHeader("内容处置", string.Format("附件;文件名=\"{0}\"", fileName));
Response.ContentType = "text/csv; charset=utf-8";

Response.AddHeader("content-disposition", string.Format("attachment;filename=\"{0}\"", fileName));
Response.ContentType = "text/csv; charset=utf-8";

゛时过境迁 2024-10-27 07:12:26

我不是 Java/JSP 方面的专家,但您确定这对于 text/csv 来说是正确的吗?
response.setHeader("内容传输编码", "二进制");

您尝试对此进行评论吗?在 PHP 中,我将简单地回显/打印 CSV,前面带有标题内容类型标题和处置类型。

I am not expert in Java/JSP but are you sure this is correct for text/csv?
response.setHeader("Content-Transfer-Encoding", "binary");

Did you try commenting out this? In PHP I will simply echo/print the CSV preceded with headers content-type headers and disposition type.

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