Ios 如何将图像上载到服务器

我在ios中使用这些代码上传我的图像

它与

互联网上的另一个代码几乎相同

NSData *uploadImage = UIImageJPEGRepresentation(self.image, 1) ;
NSString *uploadURL = @"http://...../jeff.php" ;

NSMutableURLRequest *uploadRequest = [[NSMutableURLRequest alloc] init];
[uploadRequest setURL:[NSURL URLWithString:uploadURL]] ;
[uploadRequest setHTTPMethod:@"POST"] ;

NSString *boundary = @"---------------------------14737809831466499882746641449";
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data;boundary=%@",boundary];
[uploadRequest addValue:contentType forHTTPHeaderField: @"Content-Type"];

NSMutableData *body = [NSMutableData data];
[body appendData:[[NSString stringWithFormat:@"--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"Content-Disposition:form-data; name=\"userfile\"; filename=\"test.jpg\"\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; 
[body appendData:[@"Content-Type: application/octet-streamrnrn\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[NSData dataWithData:uploadImage]];
[body appendData:[[NSString stringWithFormat:@"--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];

[uploadRequest setHTTPBody:body];

NSData *returnData = [NSURLConnection sendSynchronousRequest:uploadRequest returningResponse:nil error:nil];
NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
NSLog(@"echo：%@",returnString); 

我的PHP是

$uploaddir = './uploads/';
$file = basename($_FILES['userfile']['name']);
$uploadfile = $uploaddir . $file;

if (is_uploaded_file($_FILES['userfile']['tmp_name']))
{
    echo "yes \r\n";
}
else
{
    echo "NO \r\n";
}

if (move_uploaded_file($_FILES['userfile']['tmp_name'], $uploadfile))
{
    echo "http://...../uploads/{$file}";
}

但它不起作用

我的上传文件夹是/var/www/uploads

并将此代码用于图像发布

NSString  *imgPath = fullPathOfYourImage;
    if([[NSFileManager defaultManager] fileExistsAtPath:imgPath])
    {
        [body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];                                                        
        [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"photo\"; filename=\"YourImageName.png\"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
                                                                                                               ^..YourImageName….^

        [body appendData:[@"Content-Type: application/octet-stream\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
        [body appendData:[NSData dataWithContentsOfFile:imgPath]];
        [body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
    }

---

你可以试试这个方法，我已经测试过了，并且正在工作

PHP

<?php
$image = $_REQUEST['image'];

$imageFileName = "miImage.jpg";

$binary = base64_decode($image);
$file = fopen($imageFileName, 'wb');
fwrite($file, $binary);
fclose($file);
echo "Upload completed with success";
?>

将此方法复制并粘贴到YourViewController.m文件中

- (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];
}

最后一件事是设置服务器连接的委托方法

- (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
{
    NSString *responseString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];

    NSLog(@"Response: %@", responseString);

    if ([responseString isEqualToString:@"Upload completed with success"]) {

        /* Do something on success */

    } else {

        /* Do something if not succeeded */

    }
}

- (void) connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
    /* Do something in fail */
}

---

是否会提示任何错误？定义

不工作

我强烈建议使用AFNetworking来执行此操作。编写多部分表单数据消息非常容易出错。您的答案在某些重要细节中不正确：您的边界不正确，图像数据应该具有相应的MIME类型-应用程序/八位字节流不合适。如何将多个图像文件上载到服务器

NSURL *sendURL = [NSURL URLWithString:@"http://yourdomain.com/yourphp.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"];

stringBody = [[NSString alloc] initWithFormat:@"image=%@", encodedString];

[sendRequest setHTTPBody:[stringBody dataUsingEncoding:NSUTF8StringEncoding]];

serverConnection = [[NSURLConnection alloc] initWithRequest:sendRequest delegate:self];

[serverConnection start];

- (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
{
    NSString *responseString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];

    NSLog(@"Response: %@", responseString);

    if ([responseString isEqualToString:@"Upload completed with success"]) {

        /* Do something on success */

    } else {

        /* Do something if not succeeded */

    }
}

- (void) connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
    /* Do something in fail */
}