我正在Web应用程序中使用this upload widget。
我正在使用FormDataUploader，并且能够很好地将文件上传到服务器目录。但是，我想向处理上传的php文件发送额外的参数。这是我尝试过的：
var uploadPanel = Ext.create('Ext.ux.upload.Panel', {
uploader : 'Ext.ux.upload.uploader.FormDataUploader',
uploaderOptions : {
url : 'uploadGallery.php'
},
synchronous : true,
uploadParams : {
ID_Person : ID_Person,
ID_CI : ID_CI
}
});
如您所见，我使用了uploadParams，但是我的PHP似乎没有收到它。在我的php文件中，我有：
$ID_Person = $_GET['ID_Person'];
$ID_CI = $_GET['ID_CI'];
但是，我的PHP似乎无法获得这些参数。
接下来，我使用默认的ExtJS Uploader这样：
var uploadPanel = Ext.create('Ext.ux.upload.Panel', {
uploaderOptions : {
url : 'uploadExtJS.php'
},
synchronous : true,
uploadParams : {
ID_Person : ID_Person,
ID_CI : ID_CI
}
});
起初，我使用了旧的PHP文件，该文件能够获得我发送的额外参数。但是，似乎我需要为ExtJS上传器使用其他PHP文件。
这是我的PHP文件的外观：
<?php
/**
* Example processing of raw PUT/POST uploaded files.
* File metadata may be sent through appropriate HTTP headers:
* - file name - the 'X-File-Name' proprietary header
* - file size - the standard 'Content-Length' header or the 'X-File-Size' proprietary header
* - file type - the standard 'Content-Type' header or the 'X-File-Type' proprietary header
*
* Raw data are read from the standard input.
* The response should be a JSON encoded string with these items:
* - success (boolean) - if the upload has been successful
* - message (string) - optional message, useful in case of error
*/
require __DIR__ . '_common.php';
$config = require __DIR__ . '_config.php';
error_reporting(-1);
ini_set('display_errors', 'On');
/*
* You should check these values for XSS or SQL injection.
*/
if (!isset($_SERVER['HTTP_X_FILE_NAME'])) {
_error('Unknown file name');
}
$fileName = $_SERVER['HTTP_X_FILE_NAME'];
if (isset($_SERVER['HTTP_X_FILENAME_ENCODER']) && 'base64' == $_SERVER['HTTP_X_FILENAME_ENCODER']) {
$fileName = base64_decode($fileName);
}
$fileName = htmlspecialchars($fileName);
$mimeType = htmlspecialchars($_SERVER['HTTP_X_FILE_TYPE']);
$size = intval($_SERVER['HTTP_X_FILE_SIZE']);
$inputStream = fopen('php://input', 'r');
// $outputFilename = $config['upload_dir'] . '/' . $fileName;
$outputFilename = 'gallery' . '/' . $fileName;
$realSize = 0;
$data = '';
if ($inputStream) {
if (! $config['fake']) {
$outputStream = fopen($outputFilename, 'w');
if (! $outputStream) {
_error('Error creating local file');
}
}
while (! feof($inputStream)) {
$bytesWritten = 0;
$data = fread($inputStream, 1024);
if (! $config['fake']) {
$bytesWritten = fwrite($outputStream, $data);
} else {
$bytesWritten = strlen($data);
}
if (false === $bytesWritten) {
_error('Error writing data to file');
}
$realSize += $bytesWritten;
}
if (! $config['fake']) {
fclose($outputStream);
}
} else {
_error('Error reading input');
}
if ($realSize != $size) {
_error('The actual size differs from the declared size in the headers');
}
_log(sprintf("[raw] Uploaded %s, %s, %d byte(s)", $fileName, $mimeType, $realSize));
_response();
但是，我收到一个内部服务器500错误-表示我的php文件可能存在问题。
我主要有两个问题：
让它开始工作。
uploadExtJS.php文件应如下所示：
<?php
/**
* Example processing of raw PUT/POST uploaded files.
* File metadata may be sent through appropriate HTTP headers:
* - file name - the 'X-File-Name' proprietary header
* - file size - the standard 'Content-Length' header or the 'X-File-Size' proprietary header
* - file type - the standard 'Content-Type' header or the 'X-File-Type' proprietary header
*
* Raw data are read from the standard input.
* The response should be a JSON encoded string with these items:
* - success (boolean) - if the upload has been successful
* - message (string) - optional message, useful in case of error
*/
// require __DIR__ . '_common.php';
// $config = require __DIR__ . '_config.php';
require_once '_common.php';
$config = require_once '_config.php';
error_reporting(-1);
ini_set('display_errors', 'On');
/*
* You should check these values for XSS or SQL injection.
*/
if (!isset($_SERVER['HTTP_X_FILE_NAME'])) {
_error('Unknown file name');
}
$fileName = $_SERVER['HTTP_X_FILE_NAME'];
if (isset($_SERVER['HTTP_X_FILENAME_ENCODER']) && 'base64' == $_SERVER['HTTP_X_FILENAME_ENCODER']) {
$fileName = base64_decode($fileName);
}
$fileName = htmlspecialchars($fileName);
$mimeType = htmlspecialchars($_SERVER['HTTP_X_FILE_TYPE']);
$size = intval($_SERVER['HTTP_X_FILE_SIZE']);
$inputStream = fopen('php://input', 'r');
$outputFilename = $config['upload_dir'] . '/' . $fileName;
// $outputFilename = 'gallery' . '/' . $fileName;
$realSize = 0;
$data = '';
if ($inputStream) {
if (! $config['fake']) {
$outputStream = fopen($outputFilename, 'w');
if (! $outputStream) {
_error('Error creating local file');
}
}
while (! feof($inputStream)) {
$bytesWritten = 0;
$data = fread($inputStream, 1024);
if (! $config['fake']) {
$bytesWritten = fwrite($outputStream, $data);
} else {
$bytesWritten = strlen($data);
}
if (false === $bytesWritten) {
_error('Error writing data to file');
}
$realSize += $bytesWritten;
}
if (! $config['fake']) {
fclose($outputStream);
}
} else {
_error('Error reading input');
}
if ($realSize != $size) {
_error('The actual size differs from the declared size in the headers');
}
_log(sprintf("[raw] Uploaded %s, %s, %d byte(s)", $fileName, $mimeType, $realSize));
_response(true, "okay");
_ common.php看起来像：
<?php
function _log($value){
error_log(print_r($value, true));
}
function _response($success = true, $message = 'OK'){
$response = array(
'success' => $success,
'message' => $message
);
echo json_encode($response);
exit();
}
function _error($message){
return _response(false, $message);
}
_ config.php应该看起来像：
<?php
return array(
'upload_dir' => 'gallery',
'fake' => false
);
?>
现在，我正在使用uniqid()和microtime()使用唯一名称，并使用uploadParams()属性将图像保存到子目录（或主上载/图库文件夹下的任何文件夹）。
编辑1：重新命名上传的文件
只需更改此行：
$fileName = htmlspecialchars($fileName);
至：
$fileName = uniqid() . '_' . microtime();
编辑3：从您的附加参数中获取自定义子目录
首先，请确保您从ExtJS Web应用程序创建上载对话框时，执行此操作：
var uploadPanel = Ext.create('Ext.ux.upload.Panel', {
uploaderOptions : {
url : 'uploadExtJS.php'
},
synchronous : true,
uploadParams : {
ID_1 : ID_1,
ID_2 : ID_2 // you can put waaay more if you want
}
});
并且在您的uploadExtJS.php中，执行此操作（在定义新文件名的部分和检查输入流的部分之间）
$fileName = uniqid() . '_' . microtime();
$mimeType = htmlspecialchars($_SERVER['HTTP_X_FILE_TYPE']);
$size = intval($_SERVER['HTTP_X_FILE_SIZE']);
$ID_1 = $_GET['ID_1'];
$ID_2 = $_GET['ID_2'];
$newFilePath = $config['upload_dir'] . '/' . $ID_1 . '/' . $ID_2;
if (!file_exists($newFilePath)) {
mkdir($newFilePath, 0777, true);
}
$inputStream = fopen('php://input', 'r');
$outputFilename = $newFilePath . '/' . $fileName;
$realSize = 0;
$data = '';
如您所见，我定义了一个$newFilePath变量，在创建它之前检查它是否存在，然后将其上传到该目录。
希望这对以后遇到此问题的任何人都有帮助。