Script表单验证.doc

Script表单验证常用注册n Scriptfunction CheckForm() /获得节点var name = document.getElementById(name);var password = document.getElementById(password);var address = document.getElementById(address);var email = document.getElementById(email);var phone = document.getElementById(phone);var identity = document.getElementById(identity);/邮件的正则表达式。 var patrn=/w+(-+.w+)*w+(-.w+)*.w+(-.w+)*$/; /进行验证if (name.value = null | name.value.length 6) alert(请核实您姓名!);name.focus();return false;if (password.value = null | password.value.length 6) alert(请核实您密码!);password.focus();return false;if (address.value = null | address.value.length 2) alert(请核实您地址!);address.focus();return false; if (email.value = null | !patrn.exec(email.value) alert(请核实您email!);email.focus();return false; if (phone.value = null | phone.value.length 11) alert(请核实您电话号码!);phone.focus();return false; if (identity.value = null | identity.value.length = 0) alert(请核实您身份证!);identity.focus();return false; return true;n 表单姓名 (required) 密码 (required) 邮箱 (required) 身份证 家庭住址 电话号码 l 带ajax的注册验证n Jspfunction CheckForm() /获得节点var name = document.getElementById(name);var password = document.getElementById(password);var address = document.getElementById(address);var email = document.getElementById(email);var phone = document.getElementById(phone);var identity = document.getElementById(identity);/邮件的正则表达式。var patrn = /w+(-+.w+)*w+(-.w+)*.w+(-.w+)*$/;/进行验证if (name.value = null | name.value.length 6) alert(请核实您姓名!);name.focus();return false;if (password.value = null | password.value.length 6) alert(请核实您密码!);password.focus();return false;if (address.value = null | address.value.length 2) alert(请核实您地址!);address.focus();return false;if (email.value = null | !patrn.exec(email.value) alert(请核实您email!);email.focus();return false;if (phone.value = null | phone.value.length 11) alert(请核实您电话号码!);phone.focus();return false;if (identity.value = null | identity.value.length = 0) alert(请核实您身份证!);identity.focus();return false;checkUnique();return uniName;/绑定ajax来验证注册账号是否唯一。uniName = true;/绑定ajax来验证注册账号是否唯一。function checkUnique() alert(1);/获得用户input节点。var name = document.getElementById(userLogin);/定义ajax类。var xmlhttp = new XMLHttpRequest();var url = checkName.action?u_name= + name.value;/绑定open，设置不异步。xmlhttp.open(post, url, false);/绑定处理方法。xmlhttp.onreadystatechange = checkUniqueResult;/发送。xmlhttp.send();function checkUniqueResult() if (this.readyState = 4) if (this.status = 200) if (this.responseText = no) alert(用户名已被注册。);/必须要放在聚焦按钮上面。否则无法修改值。uniName = false;document.getElementById(name).focus(); else uniName = true;n Servlet/* * 验证处理代码 */public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException String u_name = reque