我有这个简单的形式:
<form id="commentForm" method="POST" action="api/comment">
<input type="text" name="name" title="Your name"/>
<textarea cols="40" rows="10" name="comment" title="Enter a comment">
</textarea>
<input type="submit" value="Post"/>
<input type="reset" value="Reset"/>
</form>
我需要在发送到服务器之前添加两个POST参数:
var params = [
{
name: "url",
value: window.location.pathname
},
{
name: "time",
value: new Date().getTime()
}
];
请不要修改表格。
答案 0 :(得分:89)
使用Jquery添加它:
$('#commentForm').submit(function(){ //listen for submit event
$.each(params, function(i,param){
$('<input />').attr('type', 'hidden')
.attr('name', param.name)
.attr('value', param.value)
.appendTo('#commentForm');
});
return true;
});
答案 1 :(得分:18)
以前的答案可以缩短,并且可以可读。
$('#commentForm').submit(function () {
$(this).append($.map(params, function (param) {
return $('<input>', {
type: 'hidden',
name: param.name,
value: param.value
})
}))
});
答案 2 :(得分:9)
如果要在不修改表单的情况下添加参数,则必须序列化表单,添加参数并使用AJAX发送:
var formData = $("#commentForm").serializeArray();
formData.push({name: "url", value: window.location.pathname});
formData.push({name: "time", value: new Date().getTime()});
$.post("api/comment", formData, function(data) {
// request has finished, check for errors
// and then for example redirect to another page
});
请参阅.serializeArray()
和$.post()
文档。
答案 3 :(得分:2)
您可以执行form.serializeArray(),然后在发布之前添加名称 - 值对:
var form = $(this).closest('form');
form = form.serializeArray();
form = form.concat([
{name: "customer_id", value: window.username},
{name: "post_action", value: "Update Information"}
]);
$.post('/change-user-details', form, function(d) {
if (d.error) {
alert("There was a problem updating your user details")
}
});
答案 4 :(得分:1)
您可以在没有jQuery的情况下执行此操作:
var form=document.getElementById('form-id');//retrieve the form as a DOM element
var input = document.createElement('input');//prepare a new input DOM element
input.setAttribute('name', inputName);//set the param name
input.setAttribute('value', inputValue);//set the value
input.setAttribute('type', inputType)//set the type
form.appendChild(input);//append the input to the form
form.submit();//send with added input
答案 5 :(得分:0)
PURE JavaScript:
创建XMLHttpRequest:
function getHTTPObject() {
/* Crea el objeto AJAX. Esta funcion es generica para cualquier utilidad de este tipo,
por lo que se puede copiar tal como esta aqui */
var xmlhttp = false;
/* No mas soporte para Internet Explorer
try { // Creacion del objeto AJAX para navegadores no IE
xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch(nIE) {
try { // Creacion del objet AJAX para IE
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
} catch(IE) {
if (!xmlhttp && typeof XMLHttpRequest!='undefined')
xmlhttp = new XMLHttpRequest();
}
}
*/
xmlhttp = new XMLHttpRequest();
return xmlhttp;
}
通过POST发送信息的JavaScript函数:
function sendInfo() {
var URL = "somepage.html"; //depends on you
var Params = encodeURI("var1="+val1+"var2="+val2+"var3="+val3);
console.log(Params);
var ajax = getHTTPObject();
ajax.open("POST", URL, true); //True:Sync - False:ASync
ajax.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
ajax.setRequestHeader("Content-length", Params.length);
ajax.setRequestHeader("Connection", "close");
ajax.onreadystatechange = function() {
if (ajax.readyState == 4 && ajax.status == 200) {
alert(ajax.responseText);
}
}
ajax.send(Params);
}
答案 6 :(得分:-1)
你可以做一个ajax电话。
这样,您就可以通过ajax&#39;数据自己填充POST数组:&#39;参数
var params = {
url: window.location.pathname,
time: new Date().getTime(),
};
$.ajax({
method: "POST",
url: "your/script.php",
data: params
});