客户端方法
public static void main(String[] args) { File file=new File("E:\\lucene\\rev\\全年平台受理量.docx"); postFile(file); } /** * 将文件提交至文件服务器 * @param file 文件对象 * @return FileStatus 上传结果 */ public static String postFile(File file) { CloseableHttpClient httpclient = HttpClients.createDefault(); CloseableHttpResponse response = null; String result = null; try { //服务器地址 HttpPost httpPost = new HttpPost("http://192.168.xx.xx:8080/xxxx"); MultipartEntityBuilder mEntityBuilder = MultipartEntityBuilder.create().setMode(HttpMultipartMode.RFC6532 ); mEntityBuilder.addBinaryBody("file", file); httpPost.setEntity(mEntityBuilder.build()); response = httpclient.execute(httpPost); int statusCode = response.getStatusLine().getStatusCode(); if (statusCode == HttpStatus.SC_OK) { HttpEntity resEntity = response.getEntity(); result =EntityUtils.toString(resEntity); // 消耗掉response EntityUtils.consume(resEntity); } }catch (Exception e) { e.printStackTrace(); } finally { HttpClientUtils.closeQuietly(httpclient); HttpClientUtils.closeQuietly(response); } return result; }
服务器方法
/** * 上传文件 * @param fileRequest * @throws IOException * @throws IllegalStateException */ @RequestMapping("/postFile.jzse") public void postFile(HttpServletRequest request, HttpServletResponse response) throws IllegalStateException, IOException { String result = "error"; Map<String, Object> map = new HashMap<String, Object>(); // 创建一个通用的多部分解析器 CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver(request .getSession().getServletContext()); // 判断 request 是否有文件上传,即多部分请求 if (multipartResolver.isMultipart(request)) { // 转换成多部分request MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest) request; // 取得request中的所有文件名 Iterator<String> iter = multiRequest.getFileNames(); while (iter.hasNext()) { // 取得上传文件 MultipartFile multipartFile = multiRequest.getFile(iter.next()); if (null != multipartFile) { // 取得当前上传文件的文件名称 String fileName = multipartFile.getOriginalFilename(); if (fileName.trim() != null && fileName.trim().length() > 0) { CommonsMultipartFile cf = (CommonsMultipartFile) multipartFile; DiskFileItem fi = (DiskFileItem) cf.getFileItem(); File tempFile = fi.getStoreLocation(); // 拿到文件,存储 multipartFile.transferTo(new File("E:\\lucene\\upload\\"+multipartFile.getOriginalFilename())); result = "success"; } } } } }
httpclient的jar包 httpclient-4.5.2.jar httpmime-4.2.3.jar
注意:上传文件出现乱码
MultipartEntityBuilder.create().setMode(HttpMultipartMode.RFC6532);
// multipartEntityBuilder.setCharset(Charset.forName(HTTP.UTF_8));
//设置请求的编码格式,填坑,遇到乱码时,第一错觉就是设置请求的编码格式,如果设置这个编码,会导致多文件丢失(具体原因不明)
// multipartEntityBuilder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
//设置浏览器兼容模式 ,填坑,网上好多文章说,设置成BOWSER_COMPATIBLE 就不会乱码了,问题就出现在这里,设置模式时,应该设置成HttpMultipartMode.RFC6532 才没有出现乱码
作者:fumingjiang
链接:https://www.jianshu.com/p/fa96d165c51e
來源:简书
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