Я также хотел загрузить изображение вместе с другими данными в том же POST, большая часть информации о загрузке изображений предназначена только для загрузки изображения в одном подключении к серверу, вот как я решил это.
Это PHP
<?php
/* As you can see there are more values not only the image */
$variableOne = $_POST['variableOne'];
$variableTwo = $_POST['variableTwo'];
$variableThree = $_POST['variableThree'];
$variableFour = $_POST['variableFour'];
$variableFive = $_POST['variableFive'];
$variableSix = $_POST['variableSix'];
$variableSeven = $_POST['variableSeven'];
$variableEight = $_POST['variableEight'];
$variableNine = $_POST['variableNine'];
$variableTen = $_POST['variableTen'];
/* Our image */
$image = $_REQUEST['image'];
/* This is for trying to get a unique name for the image file, since maybe you want to store large amount of images */
$currentDate = date("Y-m-d");
$name = "" . $currentDate . microtime() . rand(0, 999) . rand(0, 999) . rand(0, 999) . ".jpg";
/*
* Here comes the image stuff
*/
if (file_exists($name)) {
echo "File already exists";
} else {
/* Decoding image */
$binary = base64_decode($image);
/* Opening image */
$file = fopen($name, 'wb');
/* Writing to server */
fwrite($file, $binary);
/* Closing image file */
fclose($file);
echo "Added";
}
}
?>
Затем в XCode скопируйте и вставьте этот метод (взят из Создание строки base-64 из NSData )
- (NSString*)base64forData:(NSData*) theData {
const uint8_t* input = (const uint8_t*)[theData bytes];
NSInteger length = [theData length];
static char table[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
NSMutableData* data = [NSMutableData dataWithLength:((length + 2) / 3) * 4];
uint8_t* output = (uint8_t*)data.mutableBytes;
NSInteger i;
for (i=0; i < length; i += 3) {
NSInteger value = 0;
NSInteger j;
for (j = i; j < (i + 3); j++) {
value <<= 8;
if (j < length) {
value |= (0xFF & input[j]);
}
}
NSInteger theIndex = (i / 3) * 4;
output[theIndex + 0] = table[(value >> 18) & 0x3F];
output[theIndex + 1] = table[(value >> 12) & 0x3F];
output[theIndex + 2] = (i + 1) < length ? table[(value >> 6) & 0x3F] : '=';
output[theIndex + 3] = (i + 2) < length ? table[(value >> 0) & 0x3F] : '=';
}
return [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding];
}
В файле YourViewController.h
@interface YourViewController : UIViewController {
NSURLConnection *serverConnection;
NSMutableData *returnData;
}
Это код подключения к серверу
NSURL *sendURL = [NSURL URLWithString:@"http://yourdomainname/imagefolder/phpscript.php"];
NSMutableURLRequest *sendRequest = [NSMutableURLRequest requestWithURL:sendURL cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:30];
[sendRequest setHTTPMethod:@"POST"];
[sendRequest setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
NSData *imageData = UIImageJPEGRepresentation(yourImage, 1.0);
NSString *encodedString = [[self base64forData:imageData] stringByReplacingOccurrencesOfString:@"+" withString:@"%2B"];
NSString *dataToSend = [[NSString alloc] initWithFormat:@"variableOne=%@&variableTwo=%@&variableThree=%@&variableFour=%@&variableFive=%@&variableSix=%@&variableSeven=%@&variableEight=%@&variableNine=%@&variableTen=%@&image=%@", valueOne, valueTwo, valueThree, valueFour, valueFive, valueSix, valueSeven, valueEight, valueNine, valueTen, encodedString];
[sendRequest setHTTPBody:[dataToSend dataUsingEncoding:NSUTF8StringEncoding]];
serverConnection = [[NSURLConnection alloc] initWithRequest:sendRequest delegate:self];
[serverConnection start];
Установка методов делегата для подключения к серверу
- (void) connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
returnData = [[NSMutableData alloc] init];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[returnData appendData:data];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
if (connection == serverConnection) {
NSString *responseString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
NSLog(@"Response: %@", responseString);
if ([responseString isEqualToString:@"Added"]) {
/* Make something on success */
} else {
/* Make something else if not completed with success */
}
}
}
- (void) connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
/* Make something on failure */
}