javaweb下载文件,下载网络错误

问题很简单,下载文件报错网络错误,但是网络问题,就是下载不下来,报错如下:

 代码如下:

    @GetMapping("/export")
    public  Object testExport(HttpServletResponse response) throws IOException {

        File file = new File("C:/Users/Administrator/desktop/test,tqq - 副本.txt");
        FileInputStream fileInputStream = new FileInputStream(file);

        byte[] bytes = new byte[(int) file.length()];
        fileInputStream.read(bytes);

        response.setContentType("application/octet-stream");
        response.setContentLength(bytes.length);
        String s = new String(file.getName().getBytes("utf-8"), "ISO8859-1");
        response.setHeader("Content-Disposition",
                "attachment;filename=" + s);

        return ture;
    }

问题: 文件名没有进行网络传输编码,直接截断了,就乱套了

解决办法:文件名称使用URLEncoder.encode()进行编码

代码如下:

    @GetMapping("/export")
    public  Object testExport(HttpServletResponse response) throws IOException {

        File file = new File("C:/Users/Administrator/desktop/test,tqq - 副本.txt");
        FileInputStream fileInputStream = new FileInputStream(file);

        byte[] bytes = new byte[(int) file.length()];
        fileInputStream.read(bytes);



        response.setContentType("application/octet-stream");
        response.setContentLength(bytes.length);

        String encode = URLEncoder.encode(file.getName(), "UTF-8");
        response.setHeader("Content-Disposition",
                "attachment;filename=" + encode);

        return ture;
    }

这样就好了

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