发送ajax没反映,没报错什么反映也没有，经常遇到这种情况。
用户注册界面使用ajax，处理ajax请求的是另一个php.
下面是注册界面的javascript部分:
<script type="text/javascript">
function checkname(name)
{
var value=document.getElementById(name).value;
var error_tip=name+"_error_tip";
if(value=="")
{
document.getElementById(error_tip).innerHTML="Name cannot be empty";
document.getElementById(error_tip).style.visibility="visible";
return false;
}
else
{
var patt1=new RegExp("[0-9]");
var patt2=new RegExp("[^A-z]");
var r1=patt1.test(value);
if(r1)
{
document.getElementById(error_tip).innerHTML="Name can not contain digital";
document.getElementById(error_tip).style.visibility="visible";
return false;
}
var r2=patt2.test(value);
if(r2)
{
document.getElementById(error_tip).innerHTML="The name can not contain numbers or punctuation marks";
document.getElementById(error_tip).style.visibility="visible";
return false;
}
}
document.getElementById(error_tip).style.visibility="hidden";
return true;
}
function checkemail(name)
{
var validchar="1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_-@.";
var value=document.getElementById(name).value;
var error_tip=name+"_error_tip";
var flag1=0;
var flag2=0;
if(value=="")
{
document.getElementById(error_tip).innerHTML="Email cannot be empty";
document.getElementById(error_tip).style.visibility="visible";
return false;
}
else
{
for(var i=0;i<value.length;i++)
{
if(validchar.search(value[i])==-1)
{
document.getElementById(error_tip).innerHTML="Please enter a valid email";
document.getElementById(error_tip).style.visibility="visible";
return false;
}
if(value[i]=="@")
{flag1++;}
if(value[i]==".")
{flag2++;}
}
if((flag1!=1)||(flag2!=1))
{
document.getElementById(error_tip).innerHTML="Please enter a valid email";
document.getElementById(error_tip).style.visibility="visible";
return false;
}
document.getElementById(error_tip).style.visibility="hidden";
return true;
}
}
function checkpw(name)
{
var value=document.getElementById(name).value;
var error_tip=name+"_error_tip";
if(value=="")
{
document.getElementById(error_tip).innerHTML="Password cannot be empty";
document.getElementById(error_tip).style.visibility="visible";
return false;
}
else
{
document.getElementById(error_tip).style.visibility="hidden";
return true;
}
}
function checkcpw(name)
{
var pw=document.getElementById('pw').value;
var cpw=document.getElementById('cpw').value;
var error_tip=name+"_error_tip";
if(pw==cpw)
{
document.getElementById(error_tip).style.visibility="hidden";
return true;
}
else
{
document.getElementById(error_tip).value="Two entered passwords do not match";
document.getElementById(error_tip).style.visibility="visible";
return false;
}
}
function getxmlhttp()
{
var xmlhttp;
if(window.XMLHttpRequest)
{
xmlhttp=new XMLHttpRequest()
}
else if(window.ActiveXObject)
{
xmlhttp=new ActiveXObject("Microsoft.XMLHttp");
}
return xmlhttp;
}
function getvalue(id)
{
if(id=="sub")
{
if(document.getElementById(id).checked) return 1;
else return 0;
}
else
return document.getElementById(id).value;
}
function checkcode()
{
var code=document.getElementById("captcha_code").value;
if(code.length<6) return false;
else return true;
}
function submitinfo()
{
var xmlhttp=getxmlhttp();
if(checkname('fname')&&checkname('lname')&&checkpw('pw')&&checkemail('email')&&checkcpw('cpw')&&checkcode())
{
alert('submitinfo1');
var info="fname="+getvalue('fname')+ "&lname="+getvalue('lname')+"&pw="+getvalue('pw')+"&email="+getvalue('email')+"&sub="+getvalue('sub')+
"&captcha_code="+getvalue("captcha_code");
xmlhttp.open("POST","register_action.php",true);
xmlhttp.setRequestHeader("Content-type","application/x-www-form-urlencoded");
xmlhttp.send(info);
alert('submitinfo2');
}
xmlhttp.onreadystatechange=function()
{
if(xmlhttp.readyState==4 && xmlhttp.status==200)
{
if(xmlhttp.responseText=="1")
{document.getElementById("code_result").innerHTML="the code entered was incorrect.";
document.getElementById("code_result").style.visibility="visible";}
if(xmlhttp.responseText=="2")
{document.getElementById("reg_result").innerHTML="Create user successful.";
document.getElementById("reg_result").style.visibility="visible";}
if(xmlhttp.responseText=="3")
{document.getElementById("reg_result").innerHTML="Email already exist";
document.getElementById("reg_result").style.visibility="visible";}
if(xmlhttp.responseText=="4")
{document.getElementById("reg_result").innerHTML="Register success,send email failed";
document.getElementById("reg_result").style.visibility="visible";}
if(xmlhttp.responseText=="5")
{document.getElementById("reg_result").innerHTML="Register user failed'";
document.getElementById("reg_result").style.visibility="visible";}
}
}
}
</script>
[解决办法]
[解决办法]
确实好多~~~ 用jquery 简单些 清楚些
[解决办法]
先把验证那些注释掉，把ajax请求php调通再说。
多半js某个地方错了阻止整个程序的运行。
[解决办法]
$response="1";
echo $response;
die("Sorry, the code entered was incorrect");
类似这种地方，请在echo语句后面截断，就难上面的代码来说，js获取到底返回数据是:1Sorry, the code entered was incorrect，那么你说能正确吗，如果要返回多个数据项，那么你可以josn一个数组返回，而不能想你上面写的那样
[解决办法]
if(checkname('fname')&&checkname('lname')&&checkpw('pw')&&checkemail('email')&&checkcpw('cpw')&&checkcode())
[解决办法]
在ajax的回调方法中，直接 alert php那边反回的值，若php那边有啥报错的，都可以显示错了！