register.jsp

用户注册

register.js

var xmlHttp=false;

function createXMLHttpRequest()

{

if (window.ActiveXObject) //在IE浏览器中创建XMLHttpRequest对象

{

try{

xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");

}

catch(e){

try{

xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");

}

catch(ee){

xmlHttp=false;

}

}

}

else if (window.XMLHttpRequest) //在非IE浏览器中创建XMLHttpRequest对象

{

try{

xmlHttp = new XMLHttpRequest();

}

catch(e){

xmlHttp=false;

}

}

}

function registercheck(){

var usernameinput = document.getElementById("usernameinput").value;

var passwordinput = document.getElementById("passwordinput").value;

var user_role = document.getElementById("user_role").value;

/*

* 将用户名，密码，用户默认身份发送到后台

*/

createXMLHttpRequest(); //调用创建XMLHttpRequest对象的方法

xmlHttp.onreadystatechange=registercheckResult; //设置回调函数

var url="/Login?action=register&username=" + usernameinput + "&password=" + passwordinput+"&user_role="+user_role;

xmlHttp.open("POST",url,true); //向服务器端发送请求

xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded;charset=utf8");

xmlHttp.send(null);

}

function registercheckResult(){

var usernameinput = document.getElementById("usernameinput").value;

var passwordinput = document.getElementById("passwordinput").value;

if (xmlHttp.readyState==4 && xmlHttp.status==200){

var data= xmlHttp.responseText;

document.getElementById("checkinfo").innerHTML = "";

if(data == "false"){

document.getElementById("checkinfo").innerHTML = "该用户名已被注册";

}

if (usernameinput == ""){

document.getElementById("checkinfo").innerHTML = "用户名不能为空";

}

if (passwordinput == ""){

document.getElementById("checkinfo").innerHTML = "密码不能为空";

}

if (usernameinput == "" && passwordinput == ""){

document.getElementById("checkinfo").innerHTML = "用户名和密码不能为空";

}

if(document.getElementById("checkinfo").innerHTML == ""){

alert("用户注册成功");

window.location.href="/jsp/login/login.jsp"; //跳转到登录界面

}

}

}