系列五：安卓上传文件到服务器（带参数的）

源码地址：https://download.csdn.net/download/u013636987/11387400

做这个的时候，我在网上找了很多代码，不是只能上传文件就是只有参数。后面才找到一个可以用的。如下

安卓端

 public static void PostFile(File file,Map<String, String> params,String url, final NetComplateListener<String> listener) {
        /*****************************************/
//        //一种：参数请求体
        FormBody.Builder formBody = new FormBody.Builder();
        for (String s : params.keySet()) {
            System.out.println("key:" + s);
            System.out.println("values:" + params.get(s));
            formBody.add(s,  params.get(s));
        }

        FormBody paramsBody = formBody.build();
        //二种：文件请求体
        MediaType type = MediaType.parse("text/plain");//"text/xml;charset=utf-8"
        if(!file.exists()) {
           Log.e("ldy","文件不存在");
           listener.onNetError(-1, "日志文件不存在");
          return;
       }
        RequestBody fileBody = RequestBody.create(type, file);
        //三种：混合参数和文件请求

        RequestBody multipartBody = new MultipartBody.Builder()
                .setType(MultipartBody.ALTERNATIVE)
                //一样的效果
                .addPart(Headers.of(
                        "Content-Disposition",
                        "form-data; name=\"params\"")
                        , paramsBody)
                .addPart(Headers.of(
                        "Content-Disposition",
                        "form-data; name=\"file\"; filename="+file.getName())
                        , fileBody) .build();


        final Request request = new Request.Builder().url(url)
                .addHeader("User-Agent", "android")
                .header("Content-Type", "text/html; charset=utf-8;")
                .post(multipartBody)//传参数、文件或者混合，改一下就行请求体就行
                .build();

        /****************************************************/
//        //创建Request
        final OkHttpClient mOkHttpClient = new OkHttpClient();
//        final Request request = new Request.Builder().url(url).post(requestBody.build()).build();
        final Call call = mOkHttpClient.newBuilder().readTimeout(50, TimeUnit.SECONDS).connectTimeout(50, TimeUnit.SECONDS).writeTimeout(50, TimeUnit.SECONDS).build().newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                Log.e(TAG, e.toString());
                listener.onNetError(-1, e.toString());
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                if (response.isSuccessful()) {
                    String string = response.body().string();

                   try {
                       com.alibaba.fastjson.JSONObject returnData = JSON.parseObject(string);
                       Log.e("ldy","resultCode="+returnData.get("resultCode"));

                       if (returnData.get("resultCode").toString().equals("0")) {
                           listener.onNetComplate(returnData.get("resultMsg")+"");
                       } else {
                           Log.e("ldy","json="+returnData.toString());
                           listener.onWorkFlowError("-3",returnData.get("resultMsg")+"");
                       }
                   }catch (Exception e)
                   {
                       e.printStackTrace();
                       listener.onWorkFlowError("-4","未知异常");
                   }
                } else {
                    listener.onNetError(-2, response.message());
                }
            }
        });


    }

具体可以看源码里面的codeinput。jar包

然后服务器这么写

	public String dealFromPos() {
		JSONObject json = new JSONObject();

		try {
			System.out.println("执行dealFromPos");
			request.setCharacterEncoding("UTF-8");

			System.out.println("获取Android端传过来的普通信息：");
			int sizeThreshold = 10485760;
			File repository = new File("/tmp");
			// 创建磁盘文件项工厂，参数为缓存文件大小和临时文件位置
			DiskFileItemFactory factory = new DiskFileItemFactory(sizeThreshold, repository);

			// 创建文件上传核心类
			ServletFileUpload upload = new ServletFileUpload(factory);
			upload.setFileSizeMax(10485760);
			upload.setSizeMax(10485760);
			upload.setHeaderEncoding("UTF-8");
			// 判断是否是Multipart类型的
			if (ServletFileUpload.isMultipartContent(request)) {

				List<FileItem> list = upload.parseRequest(request);
				if (list != null) {
					for (FileItem item : list) {
						// 判断参数是普通参数还是文件参数
						if (item.isFormField()) {
							// 获得普通参数的key、value（即formData的fileName和fileSize）
							String fieldName = item.getFieldName();
							String fieldValue = item.getString("UTF-8");

							Map<String, String> map = dealParams(fieldValue);
							logger.setPos_model(map.get("posModel"));
							logger.setSn(map.get("sn"));
							logger.setMid(map.get("mid"));
							logger.setPid(map.get("pid"));
							logger.setFiles_size(map.get("fileSize"));
							SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
							String Date = sdf.format(new java.util.Date());

							logger.setUp_time(Date);
						} else {
							// 获得文件参数（即formData的file）
							String files_name = item.getName();
							logger.setFiles_name(files_name);
							System.out.println("获取到文件");
							String path = FilesUtils.PATHDIR + logger.getSn() + "\\";
							String Files_path =FilesUtils.PATHDIR_MYSQL + logger.getSn() + "\\\\" + files_name;
							logger.setFiles_path(Files_path);
							// 上传文件
							uploadFile(item, path, files_name);
						}
					}

					Logger newlogger = loggerService.getBySnAndFileName(logger.getSn(), logger.getFiles_name());
					if (newlogger == null) {
						loggerService.save(logger);
					} else {

						logger.setLogger_id(newlogger.getLogger_id());
						loggerService.merge(logger);
					}
					json.put("resultCode", 0);
					json.put("resultMsg", "交易成功");
					ServletUtils.flushData(response,json.toString());
				}
			}
		} catch (UnsupportedEncodingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			json.put("resultCode", -1);
			json.put("resultMsg", "解码失败");
			ServletUtils.flushData(response,json.toString());
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			json.put("resultCode", -2);
			json.put("resultMsg", "文件流异常");
			ServletUtils.flushData(response,json.toString());
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			json.put("resultCode", -3);
			json.put("resultMsg", "未知异常");
			ServletUtils.flushData(response,json.toString());
		}
		//
		return NONE;
	}