java File 流下载

话不多说直接代码，拿去改一下参数就可以直接使用下面是service，里面代码可以处理word转html 标签的问题，生成zip，等等 各种可以实现

public void cwriteWord(String text, String wordName, HttpServletResponse response)   throws IOException {
        File temp = File.createTempFile(wordName, ".docx");
        System.out.println("临时目录路径:" + temp.getAbsolutePath());
        temp.deleteOnExit();
        BufferedWriter out = new BufferedWriter(new FileWriter(temp));
        out.write(text);
        out.close();
        //        得到文件路径
        String filePath = temp.getAbsolutePath();
        File fileWord = new File(filePath);
        FileInputStream fileInputStream = new FileInputStream(fileWord);
        //设置Http响应头告诉浏览器下载这个附件,下载的文件名也是在这里设置的
        response.setHeader("Content-Disposition", "attachment;Filename=" + URLEncoder.encode(wordName + ".docx", "UTF-8"));
        OutputStream outputStream = response.getOutputStream();
        byte[] bytes = new byte[2048];
        int len = 0;
        while ((len = fileInputStream.read(bytes)) > 0) {
            outputStream.write(bytes, 0, len);
        }
        System.out.println("删除后的路径" + temp.getAbsolutePath());
        fileInputStream.close();
        outputStream.close();
    }

controller 层
这里使用get的原因是方便测试的时候直接在浏览器点下载。

    @GetMapping("/reportWrite")
    public void  writeWord(String text, String wordName, HttpServletResponse response) throws Exception {
        contentService.cwriteWord(text, wordName, response);
    }

下载成功页面