我是
Android开发的新手,我正在尝试创建一个只显示WordPress网站上的帖子类别和帖子的应用程序.请帮助我.
解决方法
您要做的是从wordpress创建某种REST API,以返回对您的Android HTTP请求的JSON响应.要做到这一点,首先针对Android,您可以参考这篇文章：
Make an HTTP request with android
然后,对于服务器端(您的wordpress),您将不得不添加一个插件来处理您的API请求.为此,在wp-content / plugins中创建一个名为api-endpoint.PHP的文件,并使用如下内容：
<?PHP
class API_Endpoint{
/** Hook wordpress
* @return void
*/
public function __construct(){
//Ensure the $wp_rewrite global is loaded
add_filter('query_vars',array($this,'add_query_vars'),0);
add_action('parse_request','sniff_requests'),0);
add_action('init','add_endpoints'),0);
}
/**
* Add public query vars
* @param array $vars List of current public query vars
* @return array $vars
*/
public function add_query_vars($vars){
$vars[] = '__api';
return $vars;
}
/**
* Add API Endpoints
* Regex for rewrites - these are all your endpoints
* @return void
*/
public function add_endpoints(){
//Get videos by category - as an example
add_rewrite_rule('^api/videos/?([0-9]+)?/?','index.PHP?__api=1&videos_cat=$matches[1]','top');
//Get products - as an example
add_rewrite_rule('^api/product/?([0-9]+)?/?','index.PHP?__api=1&product=$matches[1]','top');
}
/** Sniff Requests
* This is where we hijack all API requests
* If $_GET['__api'] is set,we kill WP and serve up RSS
* @return die if API request
*/
public function sniff_requests(){
global $wp;
if(isset($wp->query_vars['__api'])){
$this->handle_api_request();
exit;
}
}
/** Handle API Requests
* This is where we handle off API requests
* and return proper responses
* @return void
*/
protected function handle_api_request(){
global $wp;
/**
*
* Do your magic here ie: fetch from DB etc
* then get your $result
*/
$this->send_response($result);
}
/** Response Handler
* This sends a JSON response to the browser
*/
protected function send_response(array $data){
header('content-type: application/json; charset=utf-8');
echo json_encode($data);
exit;
}
}
new API_Endpoint();
然后通过wordpress管理界面启用API_Endpoint插件,不要忘记刷新永久链接.
之后,您将能够向以下位置发出API请求：
http://example.com/api/videos/12
要么
http://example.com/api/product/4
编辑
以获取wordpress类别为例 – http://codex.wordpress.org/Function_Reference/get_categories