安卓使用retrofit2 和rxjava2
url:
@Multipart
@POST(UrlTools.STORYUPLOAD)
Observable<Result> saveReport(@Part List<MultipartBody.Part> parts)
activity:
if (contentText.equals("") && mSelected.size() < 1) {
ToastUtils.showBottomToast("请输入内容", 0);
return;
}
ContentResolver contentResolver = getContentResolver();
MultipartBody.Builder builder = new MultipartBody.Builder()
.setType(MultipartBody.FORM)
.addFormDataPart("name", contentText);//表单类型; add需要的文本，第一个参数与后台对应，传输需要的文本
for (int i = 0; i < mSelected.size() - 1; i++) {
File file1 = null;
file1 = new File(getFilePathFromContentUri(mSelected.get(i), contentResolver));
RequestBody imageBody = RequestBody.create(MediaType.parse("multipart/form-data"), file1);
builder.addFormDataPart("file", file1.getName(), imageBody);//imgfile 后台接收图片流的参数名
}
List<MultipartBody.Part> parts = builder.build().parts();
// 实现请求
utilsPresenter.getStory(VintageActivity.this, parts);开始请求：
//上传文件
@Override
public void upFile(BaseImpl context, List<MultipartBody.Part> parts) { RetrofitRequest.getApiService()
.saveReport( parts)
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new DefaultObserver<Result>(context, false) {
@Override
public void onSuccess(Result story) {
listener.onSuccess(story);
} @Override
public void onFail(Result response) {
listener.onError(response, STORYLIST);
}
});
}
Java后台 springboot2
@RequestMapping(value = "/upload", method = RequestMethod.POST)
@ResponseBody
public String handleFileUpload(HttpServletRequest request) {
MultipartHttpServletRequest params = ((MultipartHttpServletRequest) request);
List<MultipartFile> files = ((MultipartHttpServletRequest) request)
.getFiles("file");
String name = params.getParameter("name"); //参数与安卓addFormDataPart的第一个参数对应
System.out.println("name:" + name);
String id = params.getParameter("id");
System.out.println("id:" + id); Map<String, String> urlMap = new HashMap<>(); MultipartFile file = null;
BufferedOutputStream stream = null;
for (int i = 0; i < files.size(); ++i) {
file = files.get(i);
if (!file.isEmpty()) {
try {
byte[] bytes = file.getBytes();
stream = new BufferedOutputStream(new FileOutputStream(
new File("./../images/"+file.getOriginalFilename())));//存在项目根目录下
stream.write(bytes);
stream.close();
urlMap.put(SERVER_URL+"resource/images/" , file.getOriginalFilename());
} catch (Exception e) {
stream = null;
return e.toString();
}
} else {
return "空";
}
}
return “成功”;