spring-mvc提供上传图片接口

下面提供上传的接口 适用于java代码模拟post请求 如果是html或者jsp页面的post提交则直接用注解来实现


服务端代码
@SuppressWarnings("unused")
	@RequestMapping(value = "/{uid}/img/uploadAuthImg", method = {
			RequestMethod.GET, RequestMethod.POST })
	public String uploadAuth(@PathVariable int uid, HttpServletRequest request,
			HttpServletResponse response) throws UnsupportedEncodingException {
		response.setContentType("text/plain;charset=utf-8");
		request.setCharacterEncoding("UTF-8");
		JSONObject json = new JSONObject();
		try {
                   //未解析类提供配置信息  
                   // DiskFileItemFactory factory = new DiskFileItemFactory();  
                   //创建解析类的实例  
                   //ServletFileUpload sfu = new ServletFileUpload(factory);  
                   //设置文件的最大值,4M  
                   //sfu.setSizeMax(1024*1024*4);  
                        //ServletRequestContext src = new ServletRequestContext(request);   
			// List<FileItem> items = sfu.parseRequest(request);
			// for(FileItem item : items){
			// if(item.isFormField()){ //username="username"
			// String name = item.getFieldName();
			// String value = item.getString("utf-8");
			//
			// System.out.println(name + " = " + value);
			// } else { //鏂囦欢
			// String name = item.getName();
			// item.write(new File(dir, System.currentTimeMillis() +
			// name.substring(name.lastIndexOf("."))));
			//
			// }
			//
			// }

			// 读取数据流 这里因为在springmvc中配置了 所以用这种方式 上面的方式不可行了
			Map<String, String> param = ServletUtil.paramToMap(request);//其他的数据参数 如果是上面这种则会在name-value中取出来
			MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
			List<MultipartFile> fileList = multipartRequest.getFiles("file");
			InputStream is = null;
			for (MultipartFile mf : fileList) {
				if (!mf.isEmpty()) {
					String filename = mf.getOriginalFilename();
					System.out.println(filename);
					is = mf.getInputStream();
				}
			}
			// 下面就是对springmvc中的mf进行处理 可以处理成file 也可以处理成流来存储
			// 处理业务逻辑后再掉统一用户中心
			// String brandList = service.uploadAuthImg(param, is);上传到fastdfs中 
		} catch (Exception e) {
			logger.error(e);
			json.put(ResultKeyConstant.DATA, "");
			json.put(ResultKeyConstant.ERROR_CODE,
					ErrorCodeConstant.COMMON_UNKNOWN_ERROR);// 系统内部错误
			json.put(ResultKeyConstant.ERROR_MESSAGE, messageService
					.getMessage(ErrorCodeConstant.COMMON_UNKNOWN_ERROR));

		}
		try {
			PrintWriter out = response.getWriter();
			out.print(json.toString());
			out.close();
		} catch (Exception e) {
			logger.error(e);
		}
		return null;
	}



客服端请求 用的是httpcomponents-client-4.5.2-bin.tar这个httpclient实现的

	public static void main(String[] args) throws IOException {

		// HttpPost httppost = new
		// HttpPost("http://10.18.154.14:8080/open-web/api/upload/1234/img/uploadAuthImg2");
		// "F:"+File.separator+"ds.jpg"
		CloseableHttpClient httpclient = HttpClients.createDefault();
		try {
			HttpPost httppost = new HttpPost(
					"http://10.18.154.14:8080/open-web/api/upload/123/img/uploadAuthImg");
			FileBody bin = new FileBody(new File("F:" + File.separator
					+ "ds.jpg"));
			Map<String, Object> paramMap = new HashMap<String, Object>();
			paramMap.put("mid", "4c8cc01a-d280-48e7-a8ae-2cef232d85bc");
			paramMap.put("user_name", "测试测试");
			paramMap.put("type", "jpg");
			paramMap.put("identify", "430869594605632215");
			StringBody param = new StringBody(JSONObject.fromObject(paramMap)
					.toString(), ContentType.TEXT_PLAIN);
			HttpEntity reqEntity = MultipartEntityBuilder.create()
					.addPart("file", bin).addPart("param", param).build();
			httppost.setEntity(reqEntity);
			CloseableHttpResponse response = httpclient.execute(httppost);
			try {
				System.out.println("----------------------------------------");
				System.out.println(response.getStatusLine());
				HttpEntity resEntity = response.getEntity();
				if (resEntity != null) {
					String result = EntityUtils.toString(resEntity);
					System.out.println(result);
				}
				// EntityUtils.consume(resEntity);
			} finally {
				response.close();
			}
		} finally {
			httpclient.close();
		}
	}