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下载log4php。我下载的版本是:apache-log4php-2.3.0-src.zip。借压缩,将压缩文件中的src/main/php/文件夹拷贝到CI的application/thrid_party/目录中,并将此文件夹(php),改名为log4php。
在log4php文件夹中建立log4php的配置文件,文件名为:log4php.properties。此配置文件内容如下:
- log4php.rootLogger=DEBUG, A1
- #输出到页面
- log4php.appender.A1 = LoggerAppenderEcho
- log4php.appender.A1.layout = LoggerLayoutHtml
- #输出到文件
- log4php.appender.A2 = LoggerAppenderDailyFile
- log4php.appender.A2.layout = LoggerLayoutPattern
- log4php.appender.A2.layout.ConversionPattern = "%d{ISO8601} [%p] %c: %m (at %F line %L)%n"
- log4php.appender.A2.datePattern = Ymd
- log4php.appender.A2.file = logs/errorLog_%s.log
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log4php的信息会显示在页面上。
打开根目录下的index.php文件,在文件中添加入下代码:
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// 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';
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在需要调试的文件中,如/application/core/MY_Router.php文件中:
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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 */
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运行后,显示如下的信息:
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