Ext.Ajax.request:post请求传输json数据与后台@RequestBody接收

//前端请求代码var paraMap = {name:'chenaqiang',sex:'man'}Ext.Ajax.request( {url : ‘url’，method : 'post',dataType:'json',headers: {'Content-Type':'application/json'},jsonData:Ext.util.JSON.decode(paraMap),success : function(response, options) {var o = Ext.util.JSON.decode(response.responseText);console.log(o)},failure : function() {}//后端接收代码public Map<String, Object> selectPVAndElestroeRunPower(@RequestBody Map<String, Object> params) {Map result = new HashMap<String, Object>();result.put("data", params);return result;}