AFNetworking 2.0多部分/表格数据上传到mySQL(AFNetworking 2.0 multipart/form-data upload to mySQL)

 我尝试过很多东西，但似乎无法让它发挥作用。 我可以通过UITextField将文本上传到mySQL数据库，我可以单独通过UIImageView上传图像但是当我尝试将它们放在一起时它不起作用： 
 
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"text/html",@"application/json",nil];
NSDictionary *parameters = @{@"new": self.enter};
NSData *imageData = UIImageJPEGRepresentation(self.uploadImage.image, 0.5);
[manager POST:@"http://emily-ip.com/write.php" parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
            [formData appendPartWithFileData:imageData name:@"image" fileName:@"photo.jpg" mimeType:@"image/jpeg"];
} success:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSLog(@"Success: %@", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"Error: %@", error);
}];
 
 这段代码给了我错误： 
 
"The operation couldn’t be completed. (Cocoa error 3840.)" (JSON text did not start with array or object and option to allow fragments not set.) UserInfo=0x7fabeb081660 
 
 所以我把它放进去： 
 
manager.responseSerializer = [AFHTTPResponseSerializer serializer];
 
 这会上传图片，但不会上传从文本字段输入的文本，这是我得到的输出： 
 
Success: <4572726f 72>
Success: <53756363 65737366 756c>
 
 我看了这么多帖子但我找不到问题。 无论如何，我认为它与文本字段有关。 有人可以帮我修复代码吗？ 

I have tried many things but I can't seem to get it working. I can upload text through a UITextField to the mySQL database and I can upload an image through UIImageView separately but when I try to put them together it does not work:
 
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"text/html",@"application/json",nil];
NSDictionary *parameters = @{@"new": self.enter};
NSData *imageData = UIImageJPEGRepresentation(self.uploadImage.image, 0.5);
[manager POST:@"http://emily-ip.com/write.php" parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
            [formData appendPartWithFileData:imageData name:@"image" fileName:@"photo.jpg" mimeType:@"image/jpeg"];
} success:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSLog(@"Success: %@", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"Error: %@", error);
}];
 
This code gives me the error:
 
"The operation couldn’t be completed. (Cocoa error 3840.)" (JSON text did not start with array or object and option to allow fragments not set.) UserInfo=0x7fabeb081660 
 
So I put this in:
 
manager.responseSerializer = [AFHTTPResponseSerializer serializer];
 
This uploads the image but does not upload the text entered from the text field and this is the output I get:
 
Success: <4572726f 72>
Success: <53756363 65737366 756c>
 
I have looked at so many posts but I can't find the problem. I think it is with the text field anyway. Can someone please help me fix the code? 

原文：https://stackoverflow.com/questions/31558334