jquery asynchronous request instance code

1. Use ajax

The jsp code is as follows:

Copy the codeThe code is as follows:

 
$.ajax({ 
type:"get", 
dataType:"json", 
url:"<%=basePath%>?method=getUserMsgByUserId", 
data:"userId="+userId, 
success:function(msg){ 
var data = eval("("++")"); 
alert($("#userName").val()); 
$("#userName").val(data[0].userName); 

} 
}); 

2. Use getJSON method:

Copy the codeThe code is as follows:

 
$.getJSON(url,function(data){ 
if(data!=null && data!=""){ 
$("#userIdInput").val(data[0].userId); 
$("#userNameInput").val(data[0].userName); 
$("#menusIdInput").val(data[0].menusId); 
$("#depIdInput").val(data[0].depId); 
$("#isValidInput").val(data[0].isValid); 
$("#userIdInput").attr("disabled",true); 
} 

}); 

The two types of organizational forms of returning strings that can use the JSONArray array to return ();