js登录与注册验证
经常写js验证,感觉很麻烦,这次就把他整理贴出来,以后可以直接用了。具体介绍这里不罗嗦了,直接贴代码,相信大家都能理解代码的含义
登录验证:
Jsp页面代码:
js验证代码:function login() { // console.info("点击了登录"); var userName = $("#uName").val(); // console.info(userName) var userPass = $("#uPass").val(); // console.info(userPass); if (userName == "" || userName == null) { alert("用户名不能为空"); return false; } else if (userPass == "" || userPass == null) { alert("密码不能为空"); return false; } else { return true; } }注册验证:
JSP页面代码:
js验证代码:
function register() { if(!checkname()){ return false; }else if (!checkpass()) { return false; } else if(!checkemail()){ return false; } return true; }function checkname() { var name = document.getElementById("uName").value; var ts = document.getElementById("namets"); if(name.length<3|| name.length>15) { ts.innerHTML ="用户名长度须在3-15之间!"; ts.style.color="red"; return false; } $.post("checkUserName.action", {" userName": name },function(data){ var d = $.parseJSON(data); //console.log(d.success); if(d.success!=true){ ts.innerHTML ='用户名已存在!'; ts.style.color='red'; return true; } }); ts.innerHTML ='用户名可以使用!'; ts.style.color='green'; return true; } function checkpass(){ var userPass = $("#uPass").val(); var pts = document.getElementById("passts"); if(userPass.length<6 || userPass.length >15) { pts.innerHTML ="密码长度须在6-15之间!"; pts.style.color="red"; return false; } pts.innerHTML ="密码可以使用!"; pts.style.color="green"; return true; } function checkrpass(){ var userPass = $("#uPass").val(); var userRPass = $("#uRPass").val(); var prts = document.getElementById("passrts"); if (userPass != userRPass) { prts.innerHTML="两次密码输入不一致!"; prts.style.color="red"; return false; } prts.innerHTML ="输入一致!"; prts.style.color="green"; return true; } function checkemail(){ var userEmail = $("#uEmail").val(); var ets = document.getElementById("emailts"); if(!isEmail(userEmail)){ ets.innerHTML ="邮箱格式不正确!"; ets.style.color="red"; return false; } ets.innerHTML ="邮箱可以使用!"; ets.style.color="green"; return true; } function isEmail(str){ var reg = /[a-z0-9-]{1,30}@[a-z0-9-]{1,65}.[a-z]{3}/; return reg.test(str); }