Question

我需要帮助，似乎无法在任何地方找到答案。我有一个应用程序，我想使用PHP将图像存储到MySQL。这是我正在使用的代码，我看不出我做错了什么......任何帮助都将不胜感激。

NSString *urlString = @"http://homeWeb.local/postPicSK.php?";
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:@"POST"];

NSMutableData *body = [NSMutableData data];

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

// picture
UIImage *image = imageView.image;
CGFloat compression = 0.5f;

//UIImage *smallSizeImage = [self scaleImage:image toSize:CGSizeMake(140.0, 80.0)];
NSData *imageData = UIImageJPEGRepresentation(image, compression);

// date and time
NSDate* date = [NSDate date];
NSDateFormatter* formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSString* dateAndTime = [formatter stringFromDate:date];

//[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"test\"; filename=\"%@ %@.jpg\"\r\n", [self userNameFetch], dateAndTime] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"Content-Type: application/octet-stream\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[NSData dataWithData:imageData]];
[body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];

// close form
[body appendData:[[NSString stringWithFormat:@"--%@--\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];

// set request body
[request setHTTPBody:body];

//return and test
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];

NSLog(@"%@", returnString);

我的PHP文件：

<?php
$hostusername = "root";
$hostpassword = "root";
$hostname = "127.0.0.1"; 

$courtname = $_POST['name'];
echo "Court Name:".$courtname."<br>";

$image1 = file_get_contents($_FILES['image']['name']);
echo $image1;

//connection to the database
$dbhandle = mysql_connect($hostname, $hostusername, $hostpassword) 
 or die("Unable to connect to MySQL");

//select a database to work with
$selected = mysql_select_db("scoreKeeper",$dbhandle) 
  or die("Could not select userName");

$query = mysql_query("INSERT INTO teamData (courtName, liveGameFeedImages)
            VALUES ('$courtname',$image1')");

if($query)
{
   echo"Successful";
} else {
    echo"Error";
}

//close the connection
mysql_close($dbhandle);
?>

Answer 1

如果您可以使用AFnetworking进行图片上传，那就更好了，

它非常快速和简单

下面我正在更新代码，请查看：

    NSData *imageDataNew;
    CGFloat compression = 1.0f;
    CGFloat maxCompression = 0.1f;
    int maxFileSize = 250 * 1024;
    UIImage *image = [UIImage imageWithContentsOfFile:THIS.fullPathToFile];
    NSData *imageData = UIImageJPEGRepresentation(image, compression);
    while ([imageData length] > maxFileSize && compression > maxCompression)
    {
        compression -= 0.1;
        imageDataNew = UIImageJPEGRepresentation(image, compression);
    }
    int random = arc4random() % 9999999;
    NSString *photoName=[NSString stringWithFormat:@"%d-Photo.png",random];


    // NSLog(@"new pwd is =%@",passwordTxtF.text);
    AFHTTPClient *client= [AFHTTPClient clientWithBaseURL:[NSURL URLWithString:@"http://yoururlname/project/"]];
    [client defaultValueForHeader:@"Accept"];
    NSMutableURLRequest *request = [client multipartFormRequestWithMethod:@"POST" path:@"HMU/broadcast.php?" parameters:nil constructingBodyWithBlock: ^(id <AFMultipartFormData>formData)
                                    {
                                        [formData appendPartWithFileData:imageData name:@"file" fileName:photoName mimeType:@"image/png"];
                                    }];
    AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
    [operation setUploadProgressBlock:^(NSInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite)
     {
         NSLog(@"Sent %lld of %lld bytes", totalBytesWritten, totalBytesExpectedToWrite);

     }];
    [operation  setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject)
     {

         NSData *data = (NSData *)responseObject;
         NSError *error;
         NSArray *dict = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
         NSLog(@"dict is %@", dict);
         NSString *message1=[dict valueForKey:@"message"];
         NSLog(@"message=%@",message1);
         NSString *status=[dict valueForKey:@"status"];
         if ([status isEqualToString:@"1"])
         {
              UIAlertView *alrt=[[UIAlertView alloc]initWithTitle:@"HMU APP!" message:message1 delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
             [alrt show];
         }
         else if ([status isEqualToString:@"0"])
         {
              [hud hide:YES];
             UIAlertView *alrt=[[UIAlertView alloc]initWithTitle:@"HMU APP!" message:message1 delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
             [alrt show];
             alrt.tag=2;

         }
     }
            failure:^(AFHTTPRequestOperation *operation, NSError *error)
     {

     }];
    [operation start];
}

享受编码：）

Answer 2

这是我提出的解决方案似乎有效。我希望它能帮助其他人解决同样的问题。

.m文件

- (IBAction)post:(id)sender
{

    // filter the comment field
    filteredPostText = [commentTextView.text iod_filteredString];

    // compress image
    CGFloat compression = 1.0f;
    UIImage *image = imageView.image;
    NSData *imageData = UIImageJPEGRepresentation(image, compression);

    // create file name
    int random = arc4random() % 9999999;
    NSString *photoName=[NSString stringWithFormat:@"%d-Photo.jpg",random];


    AFHTTPRequestOperationManager *manager = [[AFHTTPRequestOperationManager alloc]     initWithBaseURL:[NSURL URLWithString:@"http://homeWeb.local"]];
    manager.responseSerializer = [AFHTTPResponseSerializer serializer];
    NSDictionary *parameters = @{@"courtName": courtName, @"fileName": photoName};
    AFHTTPRequestOperation *op = [manager POST:@"postPicSK.php?" parameters:parameters     constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
        [formData appendPartWithFileData:imageData name:@"image" fileName:photoName     mimeType:@"image/jpeg"];
    } success:^(AFHTTPRequestOperation *operation, id responseObject) {
        NSLog(@"Success: %@ ***** %@", operation.responseString, responseObject);
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
        NSLog(@"Error: %@ ***** %@", operation.responseString, error);
    }];
    [op start];
}

要发布到文件夹的PHP文件

<?php
$hostusername = "root";
$hostpassword = "root";
$hostname = "127.0.0.1"; 

$courtname = $_POST['courtName'];
echo "Court Name:".$courtname."<br>";

$filename = $_POST['fileName'];
$target_path = "uploads/";

$target_path = $target_path . basename( $_FILES['image']['name']); 

if(move_uploaded_file($_FILES['image']['tmp_name'], $target_path)) 
{
    echo "The file ".  basename( $_FILES['image']['name'])." has been uploaded";
} else {
    echo "There was an error uploading the file, please try again!";
}

//close the connection
mysql_close($dbhandle);
?>

要发布到MySQL数据库的PHP文件

<?php
$hostusername = "root";
$hostpassword = "root";
$hostname = "127.0.0.1"; 

$courtname = $_POST['courtName'];
echo "Court Name:".$courtname."<br>";

$image1 = basename($_FILES['image']['tmp_name']);
echo "Image:".$image1."<br>";

$tmp_img = $_FILES['image']['tmp_name'];

//connection to the database
$dbhandle = mysql_connect($hostname, $hostusername, $hostpassword) 
 or die("Unable to connect to MySQL");
//echo "Connected to MySQL<br>";

//select a database to work with
$selected = mysql_select_db("scoreKeeper",$dbhandle) 
  or die("Could not select userName");

$query = mysql_query("INSERT INTO teamData (courtName, liveGameFeedImages)
            VALUES ('$courtname','$tmp_img')");

if($query)
{
   echo"Successful";
} else {
    echo"Error";
}

//close the connection
mysql_close($dbhandle);
?>

使用PHP从iOS上传图像到MySQL

2 个答案: