Question

我正在努力让AFMultipartFormData工作几个小时...... 我需要通过发送他的信息和他的照片来注册用户。我从后端开发人员那里获得的文档是：

所需的部分是：'注册'，内容类型'application / json'和'pic'，内容类型为image / *

我尝试了几种方法来做到这一点而没有任何成功。下面的代码有什么问题？

-(void)serverAuthentication {

    NSDictionary *jsonDictionary = @{@"clientId":@"someClientId3", @"name":@"Pantelis", @"email":@"someuser@gmail.com", @"password":@"1234567"};
    NSData *imageData = UIImageJPEGRepresentation([UIImage imageNamed:@"sampleJohnTsioris"], 0.5);

    NSError *error;
    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:jsonDictionary options:0 error:&error];
    if (!jsonData) {
        NSLog(@"JSON ERROR");
    } else {
        NSString *JSONString = [[NSString alloc] initWithBytes:[jsonData bytes] length:[jsonData length] encoding:NSUTF8StringEncoding];
        NSLog(@"JSON OUTPUT: %@",JSONString);
    }

    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
    [manager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];

    [manager POST:@"http://someserver.com/auth/account/email" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {

        [formData appendPartWithFormData:jsonData name:@"registration"];
        [formData appendPartWithFileData:imageData name:@"pic" fileName:@"photo.jpg" mimeType:@"image/*"];

    } success:^(AFHTTPRequestOperation *operation, id responseObject) {
        NSLog(@"operation=%@",operation);
        NSLog(@"Response: %@", responseObject);
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
        NSLog(@"operation=%@",operation);
        NSLog(@"Error: %@", error);
    }];
}

我得到的错误：

错误Domain = com.alamofire.error.serialization.response Code = -1011 “请求失败：不支持的媒体类型（415）”

Answer 1

您无法更改请求的内容类型。它必须是“multipart/form-data”。

您需要确保“注册”部分的mime类型为“application / json”。

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
[manager POST:@"http://someserver.com/auth/account/email" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {

    [formData appendPartWithFileData:jsonData name:@"registration" fileName:@"user.json" mimeType:@"application/json"];
    [formData appendPartWithFileData:imageData name:@"pic" fileName:@"photo.jpg" mimeType:@"image/jpeg"];

} success:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSLog(@"operation=%@",operation);
    NSLog(@"Response: %@", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"operation=%@",operation);
    NSLog(@"Error: %@", error);
}];

Answer 2

我找到了解决方案。正如Jeffery Thomas所写，您无法更改请求的内容类型，并且存在问题。具体来说，发送图像时没有问题，但是json对象需要名称＆＃34; registration＆＃34;和内容类型，我无法找到通过两者的正确方法。所以，我编写了所需的标题（传递内容类型和名称）。

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
    [manager POST:@"http://vext.dsigned.gr:8080/auth/account/email" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {

        NSMutableDictionary *headers = [NSMutableDictionary dictionaryWithObjectsAndKeys: @"application/json; charset=UTF-8",@"Content-Type", @"form-data; name=\"registration\"",@"Content-Disposition", nil];
        [formData appendPartWithHeaders:headers body:jsonData];
        [formData appendPartWithFileData:imageData name:@"pic" fileName:@"avatar.png" mimeType:@"image/png"];

    } success:^(AFHTTPRequestOperation *operation, id responseObject) {
        NSLog(@"operation=%@",operation);
        NSLog(@"Response: %@", responseObject);
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
        NSLog(@"operation=%@",operation);
        NSLog(@"Error: %@", error);
    }];

AFMultipartFormData - 不支持的媒体类型

2 个答案: