问题描述

我正在为 Joomla 3 开发自定义插件.我正在尝试对我的插件进行 ajax 调用.我查看了 Joomla Ajax 接口 并遵循了所描述的内容.但是当我打电话时，json 响应是空的，即使我正在回显一个值.

I'm developing a custom plugin for Joomla 3. I'm trying to make an ajax call to my plugin. I've looked into the Joomla Ajax Interface and followed what was described. But when I make the call, the json response is empty, even if I'm echoing a value.

这是我的 PHP 代码:

Here is my PHP code:

class plgContentMyPlugin extends JPlugin
{
    public static function onAjaxSendMail()
    {
        //Get the app
        $app = JFactory::getApplication();

        $data = "test";

        //echo the data
        echo json_encode($data);

        //close the $app
        $app->close();
    }
}

这是我的 Ajax 请求:

Here is my Ajax request:

jQuery.ajax(
{
    type: "POST",
    url: "index.php?option=com_ajax&plugin=myplugin&method=onAjaxSendMail&format=json",
    success: function(data)
    {
         var response = jQuery.parseJSON(data);
         console.log(response);
    }
});

当我收到响应时，数据变量包含一个空数组.

When I receive the response, the data variable contains an empty array.

我做错了什么?谢谢.

推荐答案

下面是触发ajax调用的代码 -

Below is the code which triggers ajax call -

JPluginHelper::importPlugin('ajax');
$plugin     = ucfirst($input->get('plugin'));
$dispatcher = JEventDispatcher::getInstance();

try
{
    $results = $dispatcher->trigger('onAjax' . $plugin);
}
catch (Exception $e)
{
    $results = $e;
}   

第一行说插件应该是 ajax 类型，并且在你的代码中是它的内容类型.根据文档，方法和类名称约定也不正确 -

First line says plugin should be of ajax type and in your code its content type. Also method and class name convention is not correct as per documentation -

The plugin class name following the plgAjax[Name] convention.
The plugin function name following the onAjax[Name] convention.

所以首先需要改变它应该是 -

SO need to change that first it should be -

<?php defined('_JEXEC') or die;

// Import library dependencies
jimport('joomla.plugin.plugin');

class plgAjaxMyplugin extends JPlugin
{

    function onAjaxMyplugin()
    {

        $data = array("test");
        return $data;

    }
}

//jQuery

jQuery.ajax(
    {
        type: "POST",
        url: "index.php?option=com_ajax&plugin=myplugin&format=json",
        success: function(data)
        {
             //var response = jQuery.parseJSON(data);
             console.log(data);
        }
    });

//XML

<?xml version="1.0" encoding="utf-8"?>
<extension version="2.5"
           type="plugin"
           group="ajax"
           method="upgrade">
    <name>Ajax - Myplugin</name>
    <version>0.1</version>
    <creationDate>Jan 28, 2015</creationDate>
    <author>test</author>
    <authorEmail>admin@change.me</authorEmail>
    <authorUrl>http://www.test.com</authorUrl>
    <license>GNU General Public License version 2 or later</license>
    <copyright>Copyright (C) 2013 betweenbrain llc. All rights reserved.</copyright>
    <description>Joomla Ajax Plugin</description>

    <files>
        <filename plugin="myplugin">myplugin.php</filename>
    </files>

</extension>

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