blocks|key|655301|text|由于您在没有关联对象的情况下调用postData，因此函数内的this与window相同，因此您访问的元素都不是您期望的元素。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|655302|不要使用intrinsic+event+attributes，使用JavaScript绑定您的处理程序。既然您已经在使用jQuery，那么您应该使用the+methods+it+provides+for+that。|655303|entityMap|0|LINK|mutability|MUTABLE|url|http://www.w3.org/TR/html4/interact/scripts.html#h-18.2.3|1|http://api.jquery.com/category/events/^0|G|8|V|4|10|6|0|4|Q|0|22|W|1|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]|$9|U|A|V|B|C]|$9|W|A|X|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Y|8|@]|D|@$9|Z|A|10|1|11]|$9|12|A|13|1|14]]|E|$]]|$1|H|3|-4|5|6|7|15|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]|P|$5|K|L|M|E|$N|Q]]]]

Since you call <code>postData</code> with no associated object, inside the function <code>this</code> is the same as <code>window</code> so none of the elements you access are the ones you expect.

Don't use <a href="http://www.w3.org/TR/html4/interact/scripts.html#h-18.2.3" rel="nofollow">intrinsic event attributes</a>, bind your handlers using JavaScript. Since you are already using jQuery you should use <a href="http://api.jquery.com/category/events/" rel="nofollow">the methods it provides for that</a>.

blocks|key|1670719|text|此语法看起来已损坏|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1670720|$.post('register.php',+{name:+(name),+password:+(password),+email:+(email)},+++++function(data)+;
++++parent.next('#message').html(data);
//+no+{}+for+function,+no+closing+)+for+$post,+and+premature+;|code-block|syntax|javascript|1670721|试一试|1670722|$.post('register.php',+{name:+(name),+password:+(password),+email:+(email)},+function(data)+{
++++parent.next('#message').html(data);
});|1670723|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

This syntax looks mangled

<pre><code>$.post('register.php', {name: (name), password: (password), email: (email)}, function(data) ;
 parent.next('#message').html(data);
// no {} for function, no closing ) for $post, and premature ;
</code></pre>

Try

<pre><code>$.post('register.php', {name: (name), password: (password), email: (email)}, function(data) {
 parent.next('#message').html(data);
});
</code></pre>

blocks|key|4884498|text|你有两个选择...|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4884499|在onclick中传递和对象：|4884500|<button+onclick='postData(this)'+class='regular'+name='save'>|code-block|syntax|javascript|4884501|或者在使用jQuery时使用jQuery首选方法附加单击处理程序：|4884502|$('input[name="save"]').click(function()+{
+++//+your+post+code+here
}};|4884503|这样就不需要onclick='postData(this)'了。|offset|length|style|CODE|4884504|entityMap^0|0|0|0|0|0|6|O|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|Z|8|@$O|10|P|11|Q|R]]|9|@]|A|$]]|$1|S|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|T|$]]

you have 2 options ... 

either pass and object in the onclick :

<pre><code>&lt;button onclick='postData(this)' class='regular' name='save'&gt;
</code></pre>

or attach the click handler using jQuery - preferred method when using jQuery :

<pre><code>$('input[name="save"]').click(function() {
 // your post code here
}};
</code></pre>

there would then be no need for the <code>onclick='postData(this)'</code>

blocks|key|4884530|text|像这样发送post数据，您将得到正确的输出|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|4884531|name+=+'demo'；password+=+'123456'；email+=+'demo@gmail.com'；|4884532|++++++$.post('register.php',{+'name':+name,+'password':+password,+'email':+email},function(html){

++++++++++++++++++++++++++++++++alert(html);+++++
+++++},"html");|code-block|syntax|javascript|4884533|//register.php|4884534|回显$_POST‘’name‘；|4884535|entityMap^0|0|L|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|V|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|W|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|X|8|@]|D|@]|E|$]]|$1|O|3|P|5|6|7|Y|8|@]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|R|$]]

Send the post data like this you will get proper output

name = 'demo'; 
 password = '123456'; 
 email = 'demo@gmail.com';

<pre><code> $.post('register.php',{ 'name': name, 'password': password, 'email': email},function(html){

 alert(html); 
 },"html");
</code></pre>

//register.php

echo $_POST['name'];

blocks|key|847589|text|如果希望正常工作，也可以使用jQuery绑定到按钮单击。(编辑:还有，让我们使用一个非弃用的元素)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|847590|<input+type='button'+class='regular'+name='save'+id='btnPost'+value='Post'+/>|code-block|syntax|javascript|847591|Javascript：|847592|$(document).ready(function()+{
++++$("#btnPost").on("click",+function()+{
++++++++var+thisBtn+=+$(this);+
++++++++var+parent+=+thisBtn.parent();+
++++++++//+Replacing+this+by+serializing+the+parent+form+-
++++++++//+not+sure+what+parent.data+is+going+to+give+without+seeing+the+rest
++++++++//+of+the+html
++++++++//+name+=+parent.data('name');+
++++++++//+password+=+parent.data('password');+
++++++++//+email+=parent.data('email');
++++++++$.post('register.php',+thisBtn.closest("form").serialize(),++++++++++
++++++++++++function(data)+{
++++++++++++++++parent.next('#message').html(data);
++++++++++++});
++++++++});
++++});
});|847593|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Use jQuery to bind to the button click as well if you want things to work properly. (EDIT: also, let's use a non-deprecated element)

<pre><code>&lt;input type='button' class='regular' name='save' id='btnPost' value='Post' /&gt;
</code></pre>

Javascript:

<pre><code>$(document).ready(function() {
 $("#btnPost").on("click", function() {
 var thisBtn = $(this); 
 var parent = thisBtn.parent(); 
 // Replacing this by serializing the parent form -
 // not sure what parent.data is going to give without seeing the rest
 // of the html
 // name = parent.data('name'); 
 // password = parent.data('password'); 
 // email =parent.data('email');
 $.post('register.php', thisBtn.closest("form").serialize(), 
 function(data) {
 parent.next('#message').html(data);
 });
 });
 });
});
</code></pre>

blocks|key|4884589|text|你可以试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4884590|$(document).ready(function(){
+++++var+$this+=+$('id_of_button');
+++++$this.click(function(){
++++++++++++//ajax+logic+here
++++++++++++$.ajax({
++++++++++++++type:+'POST',
++++++++++++++url:+url,
++++++++++++++data:+data,//data+to+send+to+serverside
++++++++++++++success:+success,+//function+to+call+on+success
++++++++++++++dataType:+dataType//datatype+eg.text,json+etc.
++++++++++++});
+++++});
});|code-block|syntax|javascript|4884591|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You could try this : 

<pre><code>$(document).ready(function(){
 var $this = $('id_of_button');
 $this.click(function(){
 //ajax logic here
 $.ajax({
 type: 'POST',
 url: url,
 data: data,//data to send to serverside
 success: success, //function to call on success
 dataType: dataType//datatype eg.text,json etc.
 });
 });
});
</code></pre>

I have a jquery post method that sends name , password and email to register.php

<pre><code>function postData()
{
 thisBtn = $(this); 
 parent = $(this).parent(); 
 name = parent.data('name'); 
 password = parent.data('password'); 
 email =parent.data('email');
 $.post('register.php', {name: (name), password: (password), email: (email)}, function(data) ;
 parent.next('#message').html(data);
}
</code></pre>

The button that performs the function onclick:

<pre><code>&lt;button onclick = 'postData()' class='regular' name='save'&gt;
</code></pre>

However nothing seems to be happening when the button is cicked

Jquery post method

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我有一个jquery post方法，它将姓名、密码和电子邮件发送到register.phpfunction postData(){    thisBtn = $(this);     parent = $(this).parent();     name = parent.data('name');     password = parent.data('password');     email

问Jquery post方法
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回答 6

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