利用jQuery获取并验证用户数据及AJAX调用示例

function getUser()
{
var userName = (document.getElementsByName("getUser"))[0].value;
var flag = true;
if(null != userName.match("[ \t\n\x0B\f\r]{1,}") || ("" == userName) || ( null != userName.match("[0-9]{1,}")))
{
alert("姓名为空或含有数字或空格");
flag = false;
}
if(flag)
{
var src = "<tbody id='user'>";
$.getJSON("getUser.do?userName="+userName,
function(data) 
{
$.each(data,function(index)
{
if(null == data[index].userName)
{
src += "";
}
else
{
src += "<tr><td bgcolor='D8EFFF' height='20' align='center'><input type='checkbox' name='userId' value='" + data[index].userId + "'></input></td>";
src += "<td bgcolor='D8EFFF' height='20' align='center'><font class='textfont2'>" + data[index].userName + "</font></td>";
src += "<td bgcolor='D8EFFF' height='20' align='center'><font class='textfont2'>" + data[index].userDomain + "</font></td>";
src += "<td bgcolor='D8EFFF' height='20' align='center'><font class='textfont2'>" + data[index].userPhone + "</font></td>";
src += "<td bgcolor='D8EFFF' height='20' align='center'><font class='textfont2'><input type='button' value='重置密码'> </font></td></tr>";
}
});