jquery's method of capturing the enter key and getting the checkbox value and asynchronous request_jquery

$("html").die().live("keydown",function(event){
  if(event.keyCode==13){
   //这里添加要处理的逻辑
  }
});

$('input[type="checkbox"][name="types"]:checked').each(function() {
  types = types+$(this).val()+ "|";
 }
);

$.ajax({
  url : "${pageContext.request.contextPath}/UOSRoleManangerAction.do?method=createRole",
  type : "post",
  dataType : "html",
  data:{"roleName":roleName,"roleDescription":roleDescription,"roles":roles,"types":types},
  success : function(data){
   var dataObj=eval("("+data+")");
   if(dataObj.result){
    alert("操作成功！");
    submitForm(null,"initPage");
   }else {
    alert("操作失败！");
   }
  }
});