1、jquery捕捉回车键: [html] view plaincopy $("html").die().live("keydown",function(event){ if(event.keyCode==13){ //这里添加要处理的逻辑 } }); 2.jquery获得多个选中的checkbox值: [html] view plaincopy $('input[type="checkbox"][name="types"]:checked').each(function() { types = types+$(this).val()+ "|"; } ); 3.jquery异步请求的方法: [html] view plaincopy $.ajax({ url : "${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!"); } } });