Question

怎么查看ajax后台返回的数据

Answer 1

success: function (data) {
alert(JSON.stringify(data));

}

Answer 2

如jsp中代码：
var xmlhttp;
if(window.XMLHttpRequest){
xmlhttp=new XMLHttpRequest();
}else{
xmlhttp=new ActiveXObject();
}
xmlhttp.onreadystatechange=function(){
if(xmlhttp.readyState==4 && xmlhttp.status==200){
alert(xmlhttp.responseText);//此处获取返回数据
}
}
xmlhttp.open("GET","service/toupdstatus.htm“,true);
xmlhttp.send();
后台：HttpServletResponse res=ServletActionContext.getResponse();
res.setCharacterEncoding("utf-8");
try {
res.getWriter().write("Has been successfully changed!");
} catch (Exception e) {
e.printStackTrace();
}
到此ok，方法返回类型为void，struts.xml内不用写<result/>标签