php - 图像未通过 Objective C 中的 POST 上传到服务器

Question

我正在使用 POST 方法和 multipartMethod 将图像从 iphone 上传到服务器。我的 Objective-C 代码是

__weak AuthAPIClient *client = [AuthAPIClient sharedClient];
    [client setParameterEncoding:AFJSONParameterEncoding];
    [client registerHTTPOperationClass:[AFHTTPRequestOperation class]];
    [SVProgressHUD showWithStatus:@"Saving data to server..."];
    [SVProgressHUD show];
    if ([self isInternetAvailable]) {
    NSString *userId =[[AppSettings sharedAppSettings] getUserName];
    NSString*replacedName=[userId stringByReplacingOccurrencesOfString:@" " withString:@"-"];
        NSDictionary *parametersDic = @{@"user_name":userName,@"image_data":[NSString stringWithFormat:@"uploads/%@.jpeg",replacedName]};

    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:parametersDic options:0 error:nil];
    id json = [NSJSONSerialization JSONObjectWithData:jsonData options:0 error:nil];


    /////////////////////////////Test code////////////////////////////////
    NSData *imageToUpload = UIImageJPEGRepresentation(imagedata, 1.0);///imagedata is an UIImage passing in parameter of method.
    NSMutableURLRequest *request = [client multipartFormRequestWithMethod:@"POST" path:@"update_profile.php" parameters:json constructingBodyWithBlock: ^(id <AFMultipartFormData>formData) {
        [formData appendPartWithFileData: imageToUpload name:@"file" fileName:[NSString stringWithFormat:@"%@.jpeg",userId] mimeType:@"image/jpeg"];
    }];

    /////////////////////////////////////////////////////////////////////
    NSLog(@"response request %@",request);
    AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
    [operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) {

                    NSLog(@"Sent %lld of %lld bytes", totalBytesWritten, totalBytesExpectedToWrite);

                }];
 [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject)
     {
         //             [SVProgressHUD dismiss];
         NSString *responseString = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];
         NSLog(responseString);
         if (responseString != nil && ![responseString isEqualToString:@""] &&  operation.response.statusCode == 200) {
             NSError *error;
             // NSDictionary *responseDic = [NSJSONSerialization JSONObjectWithData:responseObject options:kNilOptions error:&error];
             NSMutableArray* jsonArray = [NSJSONSerialization JSONObjectWithData:responseObject options:kNilOptions error:&error];
             NSLog(@"hello response %@",responseString);

         }
         else {
             NSLog(@"hello response failr %@",responseString);

             if ([self.delegate respondsToSelector:@selector(serviceHelperSavePersonalInfoDataWithDetailsFailed:error:)]) {
                 [self.delegate serviceHelperSavePersonalInfoDataWithDetailsFailed:self error:@"No Response Recieved."];
             }
         }

     }
                                     failure:^(AFHTTPRequestOperation *operation, NSError *error) {
                                         NSLog(@"Error");
                                         //                                             [SVProgressHUD dismiss];

                                         NSMutableString *errorMsg = [[NSMutableString alloc] init];
                                         [errorMsg appendString:@"Error Occured"];

                                         if(operation.response == nil)
                                         {
                                             [errorMsg appendString:@"Service not available. Please try again"];

                                         }
                                         else if (operation.response.statusCode == 500) {
                                             [errorMsg appendString:@"Service not available. Please try again"];
                                         }
                                         else if (operation.response.statusCode == 403) {
                                             [errorMsg appendString:@"Request forbidden. Please try again"];

                                         }
                                         else {
                                             NSData *jsonData = [operation.responseString dataUsingEncoding:NSUTF8StringEncoding];
                                             NSDictionary *json = [NSJSONSerialization JSONObjectWithData:jsonData
                                                                                                  options:0
                                                                                                    error:nil];
                                             if (json != nil) {
                                                 [errorMsg appendString:[json objectForKey:@"message"]];
                                             }

                                         }

                                         [errorMsg appendString:@" service is not available."];

                                         if ([self.delegate respondsToSelector:@selector(serviceHelperSavePersonalInfoDataWithDetailsFailed:error:)]) {
                                             [self.delegate serviceHelperSavePersonalInfoDataWithDetailsFailed:self error:errorMsg];
                                         }

                                     }];
    [operation start];
}
else {

    if ([self.delegate respondsToSelector:@selector(serviceHelperSavePersonalInfoDataWithDetailsFailed:error:)]) {
        [self.delegate serviceHelperSavePersonalInfoDataWithDetailsFailed:self error:@"Internet not available."];
    }
}

我的 PHP 文件 (update_profile.php) 代码是

<?php
require_once "DatabaseConnection.php";
 $myfile = fopen("newfile.txt", "w") or die("Unable to open file!");
 $txt = "not set";
 if(isset($_FILES)){

   $txt = serialize($_FILES); 
   $result = "hellll";
}

 fwrite($myfile, $txt);
 fclose($myfile);
 $uploaddir = 'uploads/';
     $file = basename($_FILES['file']['name']);
     $uploadfile = $uploaddir . $file;

     if (move_uploaded_file($_FILES['file']['tmp_name'], $uploadfile)) {
   // sendResponse(200, 'Upload Successful');
    //return true;
     }

我在其他项目中使用了我的相同代码，但在这个项目中运行良好但不工作。这与 EL Capitan OSX 有关系吗？因为我已经更新了我的操作系统。任何人都知道我错在哪里？任何帮助，将不胜感激。谢谢。

错误是: 服务器端未收到数据和图像。isset($_FILES) 中没有任何内容，我还检查了 $_POST 和 $_REQUEST，但服务器未收到任何仅保存在“newfile.txt”中的“a:0{}”。我正在服务器上创建文件“newfile.txt”，但此文件中没有任何内容。

Answer 1

//对于 Objective-c 代码——将 uiimage 转换为 nsdata //---- //注意:在 php 端编写代码将 json 字符串转换为图像，在 google 中很容易找到 //---

NSData *data1 = UIImageJPEGRepresentation(imgProfileView.image,0.8);  //0.1 to 1.0 upto image resolution

NSString *encodedString1 =   [data1 base64EncodedStringWithOptions:NSDataBase64EncodingEndLineWithLineFeed];

NSMutableDictionary *dicImage=[[NSMutableDictionary alloc] init];
[dicImage setObject:encodedString1 forKey:@"image1"];
[dicImage setObject:[dic valueForKey:@"des1"] forKey:@"des1"]; // if added any extra filed then

NSMutableDictionary *dic_set_Sync=[[NSMutableDictionary alloc] init];
[dic_set_Sync setObject:APPDELEGATE.strEmailId forKey:@"email"];
[dic_set_Sync setObject: dicImage forKey:@"compressor_sync"];


NSError *error = nil;
NSData *data = [NSJSONSerialization dataWithJSONObject:dic_set_Sync options:0 error:&error];
NSString *string = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
if (error)
    NSLog(@"%s: JSON encode error: %@", __FUNCTION__, error);

NSURL *url = [NSURL URLWithString:@"https://www.inspectab.com/app/webservice/offline/compressor_syc.php"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];

[request setHTTPMethod:@"POST"];
NSString *params = [NSString stringWithFormat:@"json=%@",
                    [string stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];

NSData *paramsData = [params dataUsingEncoding:NSUTF8StringEncoding];
[request addValue:@"8bit" forHTTPHeaderField:@"Content-Transfer-Encoding"];
[request addValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
[request setHTTPBody:paramsData];

NSURLResponse *response = nil;
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];

if (error)
    NSLog(@"%s: NSURLConnection error: %@", __FUNCTION__, error);

// examine the response

NSString *responseString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
NSLog(@"responseString: %@",responseString);

if(![responseString isEqualToString:@""])
{
    NSDictionary *dicResponse = [NSJSONSerialization JSONObjectWithData:returnData
                                                                options:kNilOptions error:&error];

    NSLog(@"dicResponse: %@", dicResponse);
}