获取post或get 提交中body

1）

StringBuffer sb = new StringBuffer();
			InputStream is = request.getInputStream();
			InputStreamReader isr = new InputStreamReader(is);
			BufferedReader br = new BufferedReader(isr);
			String s = "";
			while ((s = br.readLine()) != null) {
				sb.append(s);
			}
			String str = sb.toString();

2)

request.getQueryString();

3）spring 中可以用@RequestBody String str