java下载本地文件xlsx

最主要pom的加上这个段，不然会出现文件损坏

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <version>2.6</version>
                <artifactId>maven-resources-plugin</artifactId>
                <configuration>
                    <encoding>UTF-8</encoding>
                    <nonFilteredFileExtensions>
                        <nonFilteredFileExtension>xlsx</nonFilteredFileExtension>
                    </nonFilteredFileExtensions>
                </configuration>
            </plugin>

代码

    @Override
    public void download(HttpServletResponse response) throws IOException {
        InputStream inputStream = null;
        ServletOutputStream servletOutputStream = null;
        try {
            String filename = "物价信息模板.xlsx";
            String path = "templates/物价信息模板.xlsx";
            org.springframework.core.io.Resource resource = resourceLoader.getResource("classpath:"+path);

            response.setContentType("application/vnd.ms-excel");
            response.addHeader("Cache-Control", "no-cache, no-store, must-revalidate");
            response.addHeader("charset", "utf-8");
            response.addHeader("Pragma", "no-cache");
            String encodeName = URLEncoder.encode(filename, StandardCharsets.UTF_8.toString());
            response.setHeader("Content-Disposition", "attachment; filename=\"" + encodeName + "\"; filename*=utf-8''" + encodeName);

            inputStream = resource.getInputStream();
            servletOutputStream = response.getOutputStream();
            IOUtils.copy(inputStream, servletOutputStream);
            response.flushBuffer();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (servletOutputStream != null) {
                    servletOutputStream.close();
                    servletOutputStream = null;
                }
                if (inputStream != null) {
                    inputStream.close();
                    inputStream = null;
                }
                // 召唤jvm的垃圾回收器
                System.gc();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        
    }