代码如下

public static void uploadImage(String url) {
		//url += "/platform/sys/upload/file";
		Request req = Request.create(url, METHOD.POST);
		File file;
		FileWriter fw;
		try {
			file = new File("d:\\test\\5909ce0626744ecaad60b02a1cc92e29.png");
			fw = new FileWriter(file);
			fw.flush();
			fw.close();
			req.getParams().put("file", file);
			FilePostSender sender = new FilePostSender(req);
			Response resp = sender.send();
			if(resp.isOK()){
				System.out.println(resp);
			}
		} catch (IOException e) {
			e.printStackTrace();
		}

	}