4

我已经从使用正常上传图像的方式（当时没有它工作）切换到使用 MKNetworking 来帮助我完成上传过程，我使用这种方式是因为我发现我得到了更好的错误响应并且它有助于解决我的问题。我收到了一个 NSLog 响应，读取错误

2013-05-03 10:52:25.961 atmebeta[2420:907] Returning num rows
2013-05-03 10:52:25.967 atmebeta[2420:907] Returning num sections
2013-05-03 10:52:34.607 atmebeta[2420:907] -[MKNetworkEngine reachabilityChanged:] [Line 198] Server [atmeapp.com] is reachable via Wifi
2013-05-03 10:52:37.066 atmebeta[2420:907] -[MKNetworkOperation operationFailedWithError:] [Line 1345] Friday, May 3, 2013, 10:52:37 AM Pacific Daylight Time
Request
-------
curl -X POST "http://atmeapp.com/addavatar.php" -d "email=ooo@ooo.com"
--------
Response
--------
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<link rel="stylesheet" type="text/css" href="css/main.css" />
<!--[if lt IE 9]>
  <link rel="stylesheet" type="text/css" href="css/ie_8.css" />
<![endif]-->
</head>
<body>
    <div id="block_error">
        <div>
            <h2>Error 500 Internal Server Error</h2>
            <p>The web server is misconfigured please contact aaron@teknologenie.com</p>
<p>Please try to access the site later.</p>
        </div>
    </div>
</body>
</html>
, [The operation couldn’t be completed. (NSURLErrorDomain error 500.)]
2013-05-03 10:52:37.072 atmebeta[2420:907] Error Domain=NSURLErrorDomain Code=500 "The operation couldn’t be completed. (NSURLErrorDomain error 500.)" UserInfo=0x1d993d40 {Accept-Ranges=bytes, Server=Apache, Content-Length=693, Content-Type=text/html, Date=Fri, 03 May 2013 17:52:34 GMT}
2013-05-03 10:52:37.102 atmebeta[2420:907] -[MKNetworkOperation operationFailedWithError:] [Line 1353] State: 0

我可以通过 html 表单成功上传图像，所以我确定我的 php.ini 很好，我允许上传的方式比我要求在我的 iPhone 上上传的方式更多。

文件上传DemoViewController.h

//
//  fileUploadDemoViewController.h
//  fileUploader
//
//  Created by Michael Roling on 5/7/12.
//  Copyright (c) 2012 NA. All rights reserved.
//

#import <UIKit/UIKit.h>
#import "fileUploadEngine.h"

@interface fileUploadDemoViewController : UIViewController <UIActionSheetDelegate, UIImagePickerControllerDelegate, UINavigationControllerDelegate>

@property (strong, nonatomic) fileUploadEngine *flUploadEngine;
@property (strong, nonatomic) MKNetworkOperation *flOperation;

@end

文件上传DemoViewController.m

//
//  fileUploadDemoViewController.m
//  fileUploader
//
//  Created by Michael Roling on 5/7/12.
//  Copyright (c) 2012 NA. All rights reserved.
//

#import "fileUploadDemoViewController.h"
#import "MyClass.h"

@interface fileUploadDemoViewController ()

@end

@implementation fileUploadDemoViewController

@synthesize flUploadEngine = _flUploadEngine;
@synthesize flOperation = _flOperation;

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}

- (IBAction)uploadPhoto:(id)sender {
    UIActionSheet *photoSourcePicker = [[UIActionSheet alloc] initWithTitle:nil
                                        delegate:self cancelButtonTitle:@"Cancel"
                                        destructiveButtonTitle:nil
                                        otherButtonTitles:  @"Take Photo",
                                        @"Choose from Library",
                                        nil,
                                        nil];

    [photoSourcePicker showInView:self.view];   
}

- (void)actionSheet:(UIActionSheet *)modalView clickedButtonAtIndex:(NSInteger)buttonIndex
{
    switch (buttonIndex)
    {
        case 0:
        {
            if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
                UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
                imagePicker.sourceType =  UIImagePickerControllerSourceTypeCamera;
                imagePicker.delegate = self;
                imagePicker.cameraFlashMode = UIImagePickerControllerCameraFlashModeOff;
                imagePicker.allowsEditing = YES;
                [self presentViewController:imagePicker animated:YES completion:NULL];
            }
            else {
                UIAlertView *alert;
                alert = [[UIAlertView alloc] initWithTitle:@"Error" 
                                                   message:@"This device doesn't have a camera." 
                                                  delegate:self cancelButtonTitle:@"Ok" 
                                         otherButtonTitles:nil];
                [alert show];                
            }
            break;
        }            
        case 1:
        {
            if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) {
                UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
                imagePicker.sourceType =  UIImagePickerControllerSourceTypePhotoLibrary;
                imagePicker.delegate = self;
                imagePicker.allowsEditing = YES;
                [self presentViewController:imagePicker animated:YES completion:NULL];
            }
            else {
                UIAlertView *alert;
                alert = [[UIAlertView alloc] initWithTitle:@"Error" 
                                                   message:@"This device doesn't support photo libraries." 
                                                  delegate:self cancelButtonTitle:@"Ok" 
                                         otherButtonTitles:nil];
                [alert show];                
            }            
            break;
        }
    }
}

- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    [self dismissViewControllerAnimated:YES completion:NULL];

    NSData *image = UIImageJPEGRepresentation([info objectForKey:UIImagePickerControllerOriginalImage], 0.1);

    self.flUploadEngine = [[fileUploadEngine alloc] initWithHostName:@"http://www.atmeapp.com" customHeaderFields:nil];

    NSMutableDictionary *postParams = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                                        [MyClass str], @"email",
                                       nil];      
    self.flOperation = [self.flUploadEngine postDataToServer:postParams path:@"/addavatar.php" ];
    [self.flOperation addData:UIImageJPEGRepresentation(image, 0.5) forKey:@"userfile" mimeType:@"image/jpeg" fileName:image];

    [self.flOperation addCompletionHandler:^(MKNetworkOperation* operation) {
        NSLog(@"%@", [operation responseString]);
        /*   
            This is where you handle a successful 200 response
        */
    }     
    errorHandler:^(MKNetworkOperation *errorOp, NSError* error) {
        NSLog(@"%@", error);
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error"
                                                        message:[error localizedDescription]
                                                       delegate:nil
                                              cancelButtonTitle:@"Dismiss"
                                              otherButtonTitles:nil];
        [alert show];        
    }];

    [self.flUploadEngine enqueueOperation:self.flOperation ];  

}
@end

文件上传引擎.h

//
//  fileUploadEngine.h
//  fileUploader
//
//  Created by Michael Roling on 5/7/12.
//  Copyright (c) 2012 NA. All rights reserved.
//

#import "MKNetworkEngine.h"

@interface fileUploadEngine : MKNetworkEngine

-(MKNetworkOperation *) postDataToServer:(NSMutableDictionary *)params path:(NSString *)path;

@end

文件上传引擎.m

//
//  fileUploadEngine.m
//  fileUploader
//
//  Created by Michael Roling on 5/7/12.
//  Copyright (c) 2012 NA. All rights reserved.
//

#import "fileUploadEngine.h"

@implementation fileUploadEngine

-(MKNetworkOperation *) postDataToServer:(NSMutableDictionary *)params path:(NSString *)path {

    MKNetworkOperation *op = [self operationWithPath:path
                                              params:params
                                          httpMethod:@"POST"
                                                 ssl:NO];
    return op;     
}

@end

最后但并非最不重要的是，我的 php

$mysqli = new mysqli($host, $username, $password, $database);
    if ($stmt = $mysqli->prepare("UPDATE `user` SET imagepath=? WHERE email=?")) 
    {
        $stmt->bind_param('ss', $albumname, $email);

    $email = $_POST['email'];
    $uploaddir = 'images/users/';
    $file = basename($_FILES['userfile']['name']);
    $uploadfile = $uploaddir . $file;

    if (move_uploaded_file($_FILES['userfile']['tmp_name'], $uploadfile)) {

    }
    $albumname = $uploadfile;
    $stmt->execute();
        $stmt->close(); 
        }


    else {
        printf("Prepared Statement Error: %s\n", $mysqli->error);
    }

$mysqli->close();

我在我的服务器上的 php 日志中没有收到任何错误，

4

2 回答 2

1

看起来基本正确，我只是在 php 中做了一个 MkNetworkKit / 图像上传。我在这里发现的唯一错误是这条线

[NSMutableDictionary dictionaryWithObjectsAndKeys:
                                   @"email", [MyClass str]

您可能想要切换@"email" 和 [MyClass str]，使用 dictionaryWithObjectsAndKeys 时值应该在键之前。

这是我的实现（在 MKNetworkEngine 的子类中）：

-(MKNetworkOperation*) uploadImage:(UIImage*)image onSuccess:(EmptyBlock)successBlock onError:(MKNKErrorBlock)errorBlock {
    NSMutableDictionary *params = [[NSDictionary dictionary]mutableCopy];
    [params setValue:@"[YOUR_VALUE]" forKey:@"[YOUR_KEY]"];
    MKNetworkOperation *op = [self operationWithPath:@"[YOUR_PATH]" params:params httpMethod:@"POST"];
    [op addData:UIImageJPEGRepresentation(image, 0.5) forKey:@"userfile" mimeType:@"image/jpeg" fileName:@"[YOUR_FILENAME]"];

    [op onCompletion:^(MKNetworkOperation *completedOperation) {
    if(successBlock) {
        successBlock();
    }
    } onError:^(NSError *error) {

        TFLog(@"RCNetworkEngine.uploadError:%@, error:%@", url, [error localizedDescription]);
        if(errorBlock)
            errorBlock(error);
    }];
    [self enqueueOperation:op];
    return op;
}
于 2013-01-31T13:20:28.367 回答
1

我通过切换到 AFNetwork 解决了我的问题，这是我的新代码

- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    image.image = [info objectForKey:UIImagePickerControllerOriginalImage];
    [self->image setImage:image.image];
    [self  dismissViewControllerAnimated:YES completion:NULL];
    NSURL *url = [NSURL URLWithString:@"http://atmeapp.com"];
    AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url];
    NSData *imageData = UIImageJPEGRepresentation(image.image, 1);
    NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:
                            @"email", [MyClass str],
                            nil];
    NSMutableURLRequest *request = [httpClient multipartFormRequestWithMethod:@"POST" path:@"/addavatar.php" parameters:params constructingBodyWithBlock: ^(id <AFMultipartFormData>formData) {
        [formData appendPartWithFileData:imageData name:@"userfile" fileName:[MyClass str] mimeType:@"image/jpeg"];
    }];

    AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
    [operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) {
        NSLog(@"Sent %lld of %lld bytes", totalBytesWritten, totalBytesExpectedToWrite);
    }];
    [httpClient enqueueHTTPRequestOperation:operation];

}

我不知道为什么它会起作用，但无论如何......非常恼火。感谢大家的时间。

于 2013-05-05T01:36:55.163 回答