web 开发之js---ajax 中的两种提交方式ajax post 和 ajax get 实例
2024-07-28 09:32:06 220人阅读
()post
http://04101334.iteye.com/blog/637695/
()get
function serializeElement(element) { var method = element.tagName.toLowerCase(); var parameter = input(element);
if (parameter) { var key = encodeURIComponent(parameter[0]); if (key.length == 0) return;
if (parameter[1].constructor != Array) parameter[1] = [parameter[1]]; var values = parameter[1]; var results = []; for (var i=0; i<values.length; i++) { results.push(key + ‘=‘ + encodeURIComponent(values[i])); } return results.join(‘&‘); } } function serializeForm(formId) { var elements = getElements(formId); var queryComponents = new Array();
for (var i = 0; i < elements.length; i++) { var queryComponent = serializeElement(elements[i]); if (queryComponent) queryComponents.push(queryComponent); }
return queryComponents.join(‘&‘); }
http://04101334.iteye.com/blog/637695/
() get,post 的区别
http://blog.csdn.net/zygsee/article/details/5264103
http://bbs.phpchina.com/thread-138396-1-1.html 一般不用get 而用post的原因
学习 Ajax 那么多的理论,这里有两个不错的 Ajax Post 与 Get 的实例,让我们去学习下吧。
先是学习 Ajax 的 Post,程序效果请参看 Ajax 的 Post 传值。
03
<meta http-equiv=
"Content-Type"
content=
"text/html; charset=utf-8"
/>
04
<title>Ajax Post 传值</title>
07
<script language=
"javascript"
>
08
function
saveUserInfo()
11
var
msg = document.getElementById(
"msg"
);
14
var
f = document.user_info;
15
var
userName = f.user_name.value;
16
var
userAge = f.user_age.value;
17
var
userSex = f.user_sex.value;
20
var
url =
"ajax_output1.php"
;
23
var
postStr =
"user_name="
+ userName +
"&user_age="
+ userAge +
"&user_sex="
+ userSex;
31
if
(window.XMLHttpRequest)
33
ajax =
new
XMLHttpRequest();
34
if
(ajax.overrideMimeType)
36
ajax.overrideMimeType(
"text/xml"
);
39
else
if
(window.ActiveXObject)
43
ajax =
new
ActiveXObject(
"Msxml2.XMLHTTP"
);
49
ajax =
new
ActiveXObject(
"Microsoft.XMLHTTP"
);
56
window.alert(
"不能创建XMLHttpRequest对象实例."
);
61
ajax.open(
"POST"
, url,
true
);
64
ajax.setRequestHeader(
"Content-Type"
,
"application/x-www-form-urlencoded"
);
70
ajax.onreadystatechange =
function
()
73
if
(ajax.readyState == 4 && ajax.status == 200)
75
msg.innerHTML = ajax.responseText;
83
<form name=
"user_info"
method=
"post"
action=
""
>
84
姓名:<input type=
"text"
name=
"user_name"
/><br />
85
年龄:<input type=
"text"
name=
"user_age"
/><br />
86
性别:<input type=
"text"
name=
"user_sex"
/><br />
87
<input type=
"button"
value=http://www.mamicode.com/
"提交表单"
onClick=
"saveUserInfo()"
>
然后是 Ajax 的 Get,用途是从服务器获取值。
程序效果请参看 Ajax 的 Get 传值。
03
<meta http-equiv=
"Content-Type"
content=
"text/html; charset=utf-8"
/>
04
<title>Ajax Get 传值</title>
07
<script language=
"javascript"
>
08
function
saveUserInfo()
11
var
msg = document.getElementById(
"msg"
);
14
var
f = document.user_info;
15
var
userName = f.user_name.value;
16
var
userAge = f.user_age.value;
17
var
userSex = f.user_sex.value;
20
var
url =
"ajax_output2.php? user_name="
+ userName +
"&user_age="
+ userAge +
"&user_sex="
+ userSex;
27
if
(window.XMLHttpRequest)
30
ajax =
new
XMLHttpRequest();
31
if
(ajax.overrideMimeType)
33
ajax.overrideMimeType(
"text/xml"
);
36
else
if
(window.ActiveXObject)
40
ajax =
new
ActiveXObject(
"Msxml2.XMLHTTP"
);
46
ajax =
new
ActiveXObject(
"Microsoft.XMLHTTP"
);
53
window.alert(
"不能创建XMLHttpRequest对象实例."
);
58
ajax.open(
"GET"
, url,
true
);
64
ajax.onreadystatechange =
function
()
67
if
(ajax.readyState == 4 && ajax.status == 200)
69
msg.innerHTML = ajax.responseText;
77
<form name=
"user_info"
method=
"post"
action=
""
>
78
<input type=
"text"
name=
"user_name"
style=
"display:none;"
/>
79
<input type=
"text"
name=
"user_age"
style=
"display:none;"
/>
80
<input type=
"text"
name=
"user_sex"
style=
"display:none;"
/>
81
<input type=
"button"
value=http://www.mamicode.com/
"获取服务器变量"
onClick=
"saveUserInfo()"
>
ajax_output2.php
http://www.nowamagic.net/ajax/ajax_ExamplesOfPostAndGet.php
web 开发之js---ajax 中的两种提交方式ajax post 和 ajax get 实例
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