Android(安卓)okhttp上传多张图片 与 后台接收图片并保存
16lz
2021-01-24
首先在buid.gradle中添加okhttp的依赖，需要有网络权限
implementation 'com.squareup.okhttp3:okhttp:3.13.1'1 Android端：
private void upload(ArrayList selImageList) {// selImageList 包含图片路径的list Logs.i("upload() "); if (selImageList != null) { OkHttpClient okHttpClient = new OkHttpClient(); for (int i = 0; i < selImageList.size(); i++) { File file = new File(selImageList.get(i).path); //根据路径创建file对象 Logs.i("file.getName() "+file.getName()); // 后台通过List files = ((MultipartHttpServletRequest) request).getFiles("files");将上传的图片取出 MultipartBody.Builder builder = new MultipartBody.Builder() .setType(MultipartBody.FORM) //表单上传文件 .addFormDataPart("files", // file.getName(), RequestBody.create(MediaType.parse("image/jpeg"), file) ); //post时的参数，后台通过request.getParameter("specialname").toString() 取出 builder.addFormDataPart("specialname",file.getName()); builder.addFormDataPart("fileid",file.getName()); builder.addFormDataPart("teskid",CacheUtil.teskid); RequestBody requestBody = builder.build(); Request request = new Request.Builder() .url(CacheUtil.IP+"/File/saveFiles") .header("Cookie", CacheUtil.Cookie) .post(requestBody) .build(); Call call = okHttpClient.newCall(request); call.enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { Logs.i("onFailure: " + e); } @Override public void onResponse(Call call, okhttp3.Response response) throws IOException { Logs.i("成功" + response); } }); } } } 2 server端：
//保存图片到数据库中
@RequestMapping(value = "/saveFiles",method = RequestMethod.POST) @ResponseBody public Map saveFile(HttpServletRequest request){ Map map = new HashMap<>(); List files = ((MultipartHttpServletRequest) request).getFiles("files"); MultipartFile file = null; BufferedOutputStream stream = null; for (int i = 0; i < files.size(); ++i) { file = files.get(i); System.out.println(file.getName()); if (!file.isEmpty()) { try { FileBean fileBean=new FileBean(); fileBean.setFfname(request.getParameter("specialname").toString()); System.out.println(request.getParameter("specialname").toString()); fileBean.setFfileid(request.getParameter("fileid").toString()); System.out.println(request.getParameter("fileid").toString()); fileBean.setTeskid(request.getParameter("teskid").toString()); fileService.save(fileBean, file.getInputStream()); map.put("resultcode", "200"); } catch (Exception e) { e.printStackTrace(); stream = null; map.put("resultcode", "100"); } } else { map.put("resultcode", "100"); } } return map; }
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