页面显示如下：
JQueryAjax.html中的代码如下（用的较为简单的$.post）
- <html>
- <head>
- <meta charset="UTF-8">
- <title>JQueryAjax+PHP</title>
- <script type="text/javascript" src="https://code.jquery.com/jquery-3.0.0.min.js"></script>
- </head>
- <body>
- 用户名:<input type="text" id="username" name="username" /><br>
- 密码:<input type="password" id="password" name="password" /><br>
- <button type="button" class="butn">ajax提交</button><br>
- <span class="con"></span>
- <script type="text/javascript">
- $(document).ready(function(){
- $(".butn").click(function(){
- var username = $("#username").val();
- var password = $("#password").val();
- $.post('ajax.php',{name:username,pwd:password},function(data) {
- alert(data);
- $(".con").html(data);
- })
- })
- })
- </script>
- </body>
- </html>
<html>
<head>
<meta charset="UTF-8">
<title>JQueryAjax+PHP</title>
<script type="text/javascript" src="https://code.jquery.com/jquery-3.0.0.min.js"></script>
</head>
<body>
用户名:<input type="text" id="username" name="username" /><br>
密码:<input type="password" id="password" name="password" /><br>
<button type="button" class="butn">ajax提交</button><br>
<span class="con"></span>
<script type="text/javascript">
$(document).ready(function(){
$(".butn").click(function(){
var username = $("#username").val();
var password = $("#password").val();
$.post('ajax.php',{name:username,pwd:password},function(data) {
alert(data);
$(".con").html(data);
})
})
})
</script>
</body>
</html>
ajax.php：
- ajax.php
- <?php
- echo '用户名:',$_POST['name'],',密码：',$_POST['pwd']."<br>";
- //这里可以进行一些操作，比如数据库交互
- echo "操作完毕";
- ?>
ajax.php
<?php
echo '用户名:',$_POST['name'],',密码：',$_POST['pwd']."<br>";
//这里可以进行一些操作，比如数据库交互 echo "操作完毕";
?>
在非json格式下，后台只能返回字符串，如果想后台返回数组，可以采用json格式
例如将JQueryAjax中的代码修改为如下形式：
- <html>
- <head>
- <meta charset="UTF-8">
- <title>JQueryAjax+PHP</title>
- <script type="text/javascript" src="https://code.jquery.com/jquery-3.0.0.min.js"></script>
- </head>
- <body>
- 用户名:<input type="text" id="username" name="username" /><br>
- 密码:<input type="password" id="password" name="password" /><br>
- <button type="button" class="butn">ajax提交</button><br>
- <span class="con"></span>
- <script type="text/javascript">
- $(document).ready(function(){
- $(".butn").click(function(){
- var username = $("#username").val();
- var password = $("#password").val();
- $.ajax({
- url: "ajax.php",
- type: "POST",
- data:{name:username,pwd:password},
- dataType: "json",
- error: function(){
- alert('Error loading XML document');
- },
- success: function(data,status){//如果调用php成功
- alert(status);
- alert(data);
- $('.con').html("用户名:"+data[0]+"密码:"+data[1]);
- }
- });
- })
- })
- </script>
- </body>
- </html>
<html>
<head>
<meta charset="UTF-8">
<title>JQueryAjax+PHP</title>
<script type="text/javascript" src="https://code.jquery.com/jquery-3.0.0.min.js"></script>
</head>
<body>
用户名:<input type="text" id="username" name="username" /><br>
密码:<input type="password" id="password" name="password" /><br>
<button type="button" class="butn">ajax提交</button><br>
<span class="con"></span>
<script type="text/javascript">
$(document).ready(function(){
$(".butn").click(function(){
var username = $("#username").val();
var password = $("#password").val();
$.ajax({
url: "ajax.php",
type: "POST",
data:{name:username,pwd:password},
dataType: "json",
error: function(){
alert('Error loading XML document');
},
success: function(data,status){//如果调用php成功
alert(status);
alert(data);
$('.con').html("用户名:"+data[0]+"密码:"+data[1]);
}
});
})
})
</script>
</body>
</html>
ajax.php
- <?php
- $name = $_POST['name'];
- $pwd = $_POST['pwd'];
- $array = array("$name","$pwd");
- //这里进行一个些操作，比如数据库交互
- echo json_encode($array);//json_encode方式是必须的
- ?>
<?php
$name = $_POST['name'];
$pwd = $_POST['pwd'];
$array = array("$name","$pwd");
//这里进行一个些操作，比如数据库交互 echo json_encode($array);//json_encode方式是必须的
?>
运行效果如下：
http://blog.csdn.net/qq_28602957/article/details/51814437