springmvc controller怎么获取一个输入流

springmvc controller怎么获取一个输入流

springmvc 中controller获取ajax数据的方法：<br>1、页面jsp代码：<br><table room' : $("#roomid").find('option:selected').text(),<br>    'roomid' :$("#roomid").val()<br>    },  <br>    dataType: "json",   <br>    success : function(data) {   <br>    if(data.success){   <br>    alert("设置成功！");   <br><br>    }   <br>    else{   <br>    alert("设置失败！");   <br>    }   <br>    },   <br>    error :function(){   <br>    alert("网络连接出错！");   <br>    }   <br>});   <br>}  <br>2、后台controller写法： <br>@RequestMapping(params = "method=set")<br> public void jump(HttpSession session,HttpServletRequest request, HttpServletResponse response) throws Exception{<br>  String roomid= request.getParameter("roomid");<br>  String room= request.getParameter("room");<br>  session.setAttribute("ROOMID", roomid);<br>  session.setAttribute("ROOMNAME", room);<br>  System.out.println("session set:"+room+"=="+roomid);<br>  response.setCharacterEncoding("utf-8");<br>  response.getWriter().write("{\"success\":true }");<br>  response.getWriter().flush();<br> }<br>3、springmvc 返回信息到ajax:<br>import com.googlecode.jsonplugin.JSONUtil;<br>List<Records> recordList = new ArrayList<Records>();<br>//获取recordlist操作省略<br>  response.setCharacterEncoding("utf-8");<br>   response.getWriter().write("{\"success\":true, \"data\":" + JSONUtil.serialize(recordList) + "}");<br>   response.getWriter().flush();