1、首先需要配置Struts2配置檔案:
![](https://img.laitimes.com/img/__Qf2AjLwojIjJCLyojI0JCLiAzNvwVZ2x2bzNXak9CX90TQNNkRrFlQKBTSvwFbslmZvwFMwQzLcVmepNHdu9mZvwFVywUNMZTY18CX052bm9CX6FFVOVTQU5UMNpHW4Z0MMBjVtJWd0ckW65UbM5WOHJWa5kHT20ESjBjUIF2LcRHelR3LcJzLctmch1mclRXY39DMwgzMygDNxETNxQDM4EDMy8CX0Vmbu4GZzNmLn9Gbi1yZtl2Lc9CX6MHc0RHaiojIsJye.jpg)
2、<form id="register"><input></from>
$.ajax({
url:"user_addUser.action",
type:"post",
dataType: "json",
data:$('#register').serialize(),
success:function(data){
alert(data);
},
error:function(e){
alert("異常!"+e);
}
});
3、背景使用get、set方法傳回值