[Web] CI中使用log4php调试程序

// 载入Log4php
define ('LOG4PHP_DIR', APPPATH.'third_party/log4php/');
require_once LOG4PHP_DIR.'Logger.php';
Logger::configure(LOG4PHP_DIR.'log4php.properties');

/*
* --------------------------------------------------------------------
* LOAD THE BOOTSTRAP FILE
* --------------------------------------------------------------------
*
* And away we go...
*
*/
require_once BASEPATH.'core/CodeIgniter.php';

class MY_Router extends CI_Router {
// 定义私有日志变量log
private $log;

/**
* Constructor
* Runs the route mapping function.
*/
public function __construct() {
parent::__construct();
// 生成log
$this->log = Logger::getLogger(__CLASS__);
// 使用log
$this->log->debug('core/MY_Router Class Initialized');
}

/**
* Validates the supplied segments. Attempts to determine the path to the controller.
*
* @see CI_Router::_validate_request()
* @access private
* @param array
* @return array
*/
function _validate_request($segments) {
if (count ($segments) == 0) {
return $segments;
}

// 测试:查看路径
$this->log->debug('segments数组的大小:'.count ($segments));
$tempDir = array ();
for ($i = 0; $i < count ($segments); $i++) {
$tempDir[] = $segments[$i];
$this->log->debug('segments['.$i.']:'.$segments[$i]);
$this->log->debug(APPPATH.'controllers/'.implode ('/', $tempDir));
if(!is_dir (APPPATH.'controllers/'.implode ('/', $tempDir))) {
unset ($tempDir[count ($tempDir)-1]);
break;
}
}
$this->log->debug('segments = '.$segments[0]);

// Does the requested controller exist in the root folder?
if (file_exists (APPPATH.'controllers/'.$segments[0].'.php')) {
return $segments;
}

// Is the controller in a sub-folder?
if (is_dir (APPPATH.'controllers/'.$segments[0])) {
// Set the directory and remove it from the segment array
//$this->set_directory($segments[0]);
//$segments = array_slice($segments, 1);

$controllerPath = array ();
$is = 0;
for(; $is < count ($segments); $is++) {
$controllerPath[] = $segments[$is];
if(!is_dir (APPPATH.'controllers/'.implode ('/', $controllerPath))) {
unset ($controllerPath[count ($controllerPath)-1]);
break;
}
}
$this->log->debug('传递给set_directory的参数:'.implode ('/', $controllerPath));
$this->set_directory(implode ('/', $controllerPath));
$segments = array_slice ($segments, $is);
$this->log->debug($segments);
if (count ($segments) > 0) {
$this->log->debug(APPPATH.'controllers/'.$this->fetch_directory().$segments[0].EXT);
// Does the requested controller exist in the sub-folder?
if ( ! file_exists (APPPATH.'controllers/'.$this->fetch_directory().$segments[0].EXT)) {
$this->log->debug($this->routes['404_override']);
if ( ! empty ($this->routes['404_override'])) {
$x = explode ('/', $this->routes['404_override']);
$this->log->debug('x='.$x);
$this->set_directory('');
$this->set_class($x[0]);
$this->set_method(isset ($x[1]) ? $x[1] : 'index');

return $x;
}
else {
show_404($this->fetch_directory().$segments[0]);
}
}
}
else {
// Is the method being specified in the route?
if (strpos ($this->default_controller, '/') !== FALSE) {
$x = explode ('/', $this->default_controller);

$this->set_class($x[0]);
$this->set_method($x[1]);
}
else {
$this->set_class($this->default_controller);
$this->set_method('index');
}

// Does the default controller exist in the sub-folder?
if ( ! file_exists (APPPATH.'controllers/'.$this->fetch_directory().$this->default_controller.'.php')) {
$this->directory = '';
return array ();
}

}

return $segments;
}


// If we've gotten this far it means that the URI does not correlate to a valid
// controller class. We will now see if there is an override
if ( ! empty ($this->routes['404_override'])) {
$x = explode ('/', $this->routes['404_override']);

$this->set_class($x[0]);
$this->set_method(isset ($x[1]) ? $x[1] : 'index');

return $x;
}


// Nothing else to do at this point but show a 404
show_404($segments[0]);
}

/**
* Set the directory name
*
* @access public
* @param string
* @return void
*/
function set_directory($dir) {
// 原程序将$dir中的"/"或"."过滤掉,出于安全考虑吗?
//$this->directory = str_replace(array('/', '.'), '', $dir).'/';
$this->directory = $dir.'/';
}
}
/* End of file MY_Routes.php */
/* Location: ./application/liberaies/MY_Routes.php */