jsp用户注册登录数据库实现代码

function verifyLogin(){ var username=document.getElementById("uname"); var password=document.getElementById("upwd"); if(username.value==""){ alert("用户名不能为空！"); username.focus(); } else if(password.value=="") { alert("密码不能为空"); password.focus(); } } function verifyRegiser() { var username=document.getElementById("uname"); var password=document.getElementById("upwd"); var repassword=document.getElementById("reupwd"); if(username.value==""){ alert("用户名不能为空！"); username.focus(); } if(password.value=="") { alert("密码不能为空"); password.focus(); } if(password.value!==repassword.value) { alert("两次输入的密码不一致!!!"); password.focus(); } }