1.
html中
js中：
var xmlHttp = false;
function createXMLHttpRequest(){
try {// Chrome, Firefox, Opera, Safari
xmlHttp = new XMLHttpRequest();
} catch (e) {
try {// Internet Explorer
xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {// Internet Explorer
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
} catch (e) {
alert("your browser not support ajax!");
}
}
}
return xmlHttp;
}
function checkLogin(){
console.log("ok");
//1、调用创建XMLHttpRequest对象方法
createXMLHttpRequest();
//2、设置回调函数
xmlHttp.onreadystatechange = callback;
//3、向servlet/check发送请求
xmlHttp.open("POST","./servlet/login.action",true);
//4、向服务器端发送请求
xmlHttp.setRequestHeader("ContentType","application/x-www-form-urlencoded;charset=UTF-8");
var nameStr = document.getElementById('name').value;
var pswStr = document.getElementById('psw').value;
var para = "t="+Math.random()+"&"+"name="+nameStr +"&"+ "psw="+pswStr;
console.log(para);
xmlHttp.send(para);
}
function callback(){
if(xmlHttp.readyState == 4){
if(xmlHttp.status == 200){
var str = xmlHttp.responseText;
console.log(str);
if(str == 'ok'){ //登录成功
alert("登录成功");
}else{
alert("登录失败");
}
}
}
}
后台servlet中：
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
response.setContentType("text/html");
PrintWriter out = response.getWriter();
System.out.println("enter");
String name = request.getParameter("name");
String psw = request.getParameter("psw");
System.out.println("name:"+name);
System.out.println("psw:"+psw);
2、问题：
但我运行的时候，输入用户和密码 sa,sa 时候，
浏览器中调试，数据js中都获取到了的，但是network中没有请求记录，但是servet中进入方法了，参数却一直获取不到，这个怎么才对呢？
