/**
* 构造方法：初始化页面编码方式
* @param string $encoding
*/
public function __construct($encoding = null)
{
if ($encoding === null) {
$encoding = Ap::getEncoding();
}
$this->setEncoding($encoding);
}
/**
* 单例模式：获取本类的实例化对象
* @param string $charset
* @return \tfc\util\Encoder
*/
public static function getInstance($charset = null)
{
if ($charset === null) {
$charset = Ap::getEncoding();
}
$charset = strtoupper($charset);
if (!isset(self::$_instances[$charset])) {
self::$_instances[$charset] = new self($charset);
}
return self::$_instances[$charset];
}
/**
* 通过输出数据类型，输出数据
* @param mixed $data
* @return void
* @throws InvalidArgumentException 如果不是可支持的输出数据类型，抛出异常
*/
public function display($data)
{
// 规范输出格式
$data = $this->getViewData($data);
// 数据转Json类型后输出，如果项目不是UTF-8格式，需要先将输出数据转成UTF-8格式
if ($this->_dataType === 'JSON') {
if (Ap::getEncoding() !== 'UTF-8') {
$data = Encoder::getInstance()->convert($data, Ap::getEncoding(), 'UTF-8');
}
echo json_encode($data);
exit;
}
// 数据序列化后输出
if ($this->_dataType === 'SERIAL') {
echo serialize($data);
exit;
}
throw new InvalidArgumentException('DataAction is unable to determine the output data type of the request.');
}
/**
* 初始化项目编码和输入内容编码，如果输入编码和项目编码不一致，自动转换RPG中数据编码
* @return void
* @throws InvalidArgumentException 如果不是可支持的编码，抛出异常
*/
protected function _initEncoding()
{
// 验证配置中的项目编码是否合法
try {
$encoding = strtoupper(trim(Cfg::getApp('encoding')));
Ap::setEncoding($encoding);
} catch (ErrorException $e) {
}
if (!in_array(Ap::getEncoding(), $this->_encodings)) {
throw new InvalidArgumentException('BaseAction is unable to determine the charset of the config.');
}
// 从RGP中获取‘ie’的值（input encode），并验证是否合法
$encoding = Ap::getRequest()->getTrim('ie');
if ($encoding !== '') {
$encoding = strtoupper($encoding);
if (!in_array($encoding, $this->_encodings)) {
throw new InvalidArgumentException('BaseAction is unable to determine the charset of the request.');
}
// 转换输入内容编码
if (Ap::getEncoding() !== $encoding) {
$encoder = Encoder::getInstance();
$_GET = $encoder->convert($_GET, $encoding);
$_POST = $encoder->convert($_POST, $encoding);
// $_COOKIE = $encoder->convert($_COOKIE, $encoding);
}
}
}
/**
* 测试打印数据，只有DEBUG或者强制的时候才输出
* @param mixed $expression
* @param boolean $coercion
* @return void
*/
function debug_print_r($expression, $coercion = false)
{
if (DEBUG || $coercion) {
$response = \tfc\ap\Ap::getResponse();
if (!$response->headersSent()) {
$response->contentType('text/html', \tfc\ap\Ap::getEncoding());
}
echo '<pre>';
print_r($expression);
echo '</pre>';
exit;
}
}
