![](/img/trans.png)
[英]Ajax POST XMLHttpRequest() can't send parameters with & characther
[英]JavaScript: Post can't send parameters?
在我的网页中,我尝试通过JavaScript发送参数。
当我收到请求时,我发现参数为空? 我很确定,因为我可以收到请求,所以请求可以成功发送。
我不知道为什么这是错误的,这是我的代码:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<meta http-equiv="Expires" content="0">
<meta http-equiv="kiben" content="no-cache">
<title>Login Page</title>
<script type="text/javascript">
function GetCookie (name)
{
var arg = name + "=";
var alen = arg.length;
var clen = window.document.cookie.length;
var i = 0;
while (i < clen)
{
var j = i + alen;
if (window.document.cookie.substring(i, j) == arg) return getCookieVal (j);
i = window.document.cookie.indexOf(" ", i) + 1;
if (i == 0)
break;
}
return null;
}
function getCookieVal (offset)
{
var endstr = window.document.cookie.indexOf (";", offset);
if (endstr == -1)
endstr = window.document.cookie.length;
return unescape(window.document.cookie.substring(offset, endstr));
}
function SetCookie (name, value)
{
var exp = new Date();
exp.setTime(exp.getTime() + (30*24*60*60*1000));
window.document.cookie = name + "=" + escape (value) + "; expires=" + exp.toGMTString()+";path=/";
}
function DeleteCookie (name)
{
var exp = new Date();
exp.setTime (exp.getTime() - 100);
var cval = GetCookie (name);
window.document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString()+";path=/";
}
function DelCookie()
{
DeleteCookie(document.getElementById("username").value);
}
function remember()
{
if(document.getElementById("remember").checked){
SetCookie(document.getElementById("username").value,document.getElementById("password").value);
alert("Saved!");
}
createForm();
}
function showpassword()
{
var p=GetCookie(document.getElementById("username").value);
if(p!=null)
document.getElementById("password").value= p;
}
function createForm(){
var form = document.createElement("form");
form.method="post";
form.action="login";
var usernmae = document.getElementById("username");
var pwd = document.getElementById("password");
var hiddenField = document.createElement("input");
hiddenField.setAttribute("type", "text");
hiddenField.setAttribute("username",username.value);
hiddenField.setAttribute("password",pwd.value);
form.appendChild(hiddenField);
document.body.appendChild(form);
form.submit();
}
</script>
</head>
<body>
UserName:<input type="text" id="username" onblur="showpassword()"><br />
Password:<input type="password" id="password">
<input type="checkbox" name="remember" id="remember">
</input>Remeber Username<br />
<input value="Submit" type="button" onClick="remember()">
<input value="Delete" type="button" onClick="DelCookie()">
</body>
</html>
var hiddenField = document.createElement("input");
hiddenField.setAttribute("type", "text");
hiddenField.setAttribute("username",username.value);
hiddenField.setAttribute("password",pwd.value);
form.appendChild(hiddenField);
document.body.appendChild(form);
form.submit();
发送这样的参数是不可能的,通过提交的每个html控件上的表单提交需求name attribute
发送数据
var hiddenField = document.createElement("input");
hiddenField.setAttribute("type", "text");
hiddenField.setAttribute("name","username");
hiddenField.setAttribute("value",username.valuee);
form.appendChild(hiddenField);
var hiddenField2 = document.createElement("input");
hiddenField2.setAttribute("type", "text");
hiddenField2.setAttribute("name","password");
hiddenField2.setAttribute("value",pwd.value);
form.appendChild(hiddenField2);
document.body.appendChild(form);
form.submit();
你缺少的最重要的form
元素..的form
它的自我。
如何将输入包装在大的<form...>
子句中。
您应该在HTML中使用<form>
标记来执行此操作,而不是通过编程方式创建表单。
<body>
<form action="login" method="POST">
UserName:<input type="text" id="username" onblur="showpassword()"><br />
Password:<input type="password" id="password">
<input type="checkbox" name="remember" id="remember">
</input>Remeber Username<br />
<input value="Submit" type="button" onClick="remember()">
<input value="Delete" type="button" onClick="DelCookie()">
</form>
</body>
如果要这样做(在JavaScript中),则应使用createElement创建2个input
,而不是一个input
。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.