Ios 将NSData与NSDictionary参数一起传递到web服务

我把所有的AFNetworking服务都写在单独的web服务类中。到目前为止，通过NSDictionary参数，我一直做得很好。但现在，当我需要将NSData文件传递给web服务时，我遇到了一个问题

这里是我如何执行web服务的

 NSData *imageData = UIImageJPEGRepresentation(self.profileImg.image, 0.5); // I need to pass this imageData

    NSDateFormatter *dateFormatter=[[NSDateFormatter alloc] init];
    [dateFormatter setDateFormat:@"yyyy-MM-dd hh:mm:ss"];

    NSString *stringFromDate = [dateFormatter stringFromDate:[NSDate date]];

    //Encrypting Password
    NSString *passwordString = _password.text;
    NSString *passwordMD5 = [passwordString MD5String];

    NSDictionary *params = @{@"username": _username.text,
                             @"password": passwordMD5,
                             @"email": _email.text,
                             @"date":stringFromDate};

    WebService *serviceObj = [[WebService alloc] init];
    serviceObj.delegate = self;
    [serviceObj performSelectorInBackground:@selector(doRegister:) withObject:params];

NSMutableDictionary * parameters = [[NSMutableDictionary alloc]initWithDictionary:params];

NSURL *baseURL = [NSURL URLWithString:@"http://www.example.com/register.php"];

AFHTTPSessionManager * manager = [[AFHTTPSessionManager alloc] initWithBaseURL:baseURL];
manager.responseSerializer = [AFJSONResponseSerializer serializer];

[manager POST:@"" parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData>  _Nonnull formData) {

    [formData appendPartWithFileData:imageData name:@"image" fileName:@"profile.png" mimeType:@"image/png"];

} progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {

    [delegate didReceiveRegisterResponse:responseObject];

} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {

}];

下面是我如何编写web服务的

 NSData *imageData = UIImageJPEGRepresentation(self.profileImg.image, 0.5); // I need to pass this imageData

    NSDateFormatter *dateFormatter=[[NSDateFormatter alloc] init];
    [dateFormatter setDateFormat:@"yyyy-MM-dd hh:mm:ss"];

    NSString *stringFromDate = [dateFormatter stringFromDate:[NSDate date]];

    //Encrypting Password
    NSString *passwordString = _password.text;
    NSString *passwordMD5 = [passwordString MD5String];

    NSDictionary *params = @{@"username": _username.text,
                             @"password": passwordMD5,
                             @"email": _email.text,
                             @"date":stringFromDate};

    WebService *serviceObj = [[WebService alloc] init];
    serviceObj.delegate = self;
    [serviceObj performSelectorInBackground:@selector(doRegister:) withObject:params];

NSMutableDictionary * parameters = [[NSMutableDictionary alloc]initWithDictionary:params];

NSURL *baseURL = [NSURL URLWithString:@"http://www.example.com/register.php"];

AFHTTPSessionManager * manager = [[AFHTTPSessionManager alloc] initWithBaseURL:baseURL];
manager.responseSerializer = [AFJSONResponseSerializer serializer];

[manager POST:@"" parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData>  _Nonnull formData) {

    [formData appendPartWithFileData:imageData name:@"image" fileName:@"profile.png" mimeType:@"image/png"];

} progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {

    [delegate didReceiveRegisterResponse:responseObject];

} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {

}];

NSMutableDictionary*参数=[[NSMutableDictionary alloc]initWithDictionary:params]；
NSURL*baseURL=[NSURL URLWithString:@”http://www.example.com/register.php"];
AFHTTPSessionManager*manager=[[AFHTTPSessionManager alloc]initWithBaseURL:baseURL]；
manager.responseSerializer=[AFJSONResponseSerializer序列化程序]；
[manager POST:@”“参数：参数constructingBodyWithBlock:^（id\u非空formData）{
[formData appendPartWithFileData:imageData名称：@“image”文件名：@“profile.png”mimeType:@“image/png”]；
}进度：无成功：^（NSURLSessionDataTask*\u非空任务，id\u可空响应对象）{
[代表didReceiveRegisterResponse:responseObject]；
}失败：^（NSURLSessionDataTask*_可空任务，NSError*_非空错误）{
}];

---

但我现在不知道如何分配图像数据。

我已经通过数组中的NSData和NSDictionary完成了分配。如下

[self performSelectorInBackground:@selector(reloadPage:)
                       withObject:[NSArray arrayWithObjects:pageIndex,firstCase,nil] ];


- (void) reloadPage: (NSArray *) args {
    NSString *pageIndex = [args objectAtIndex:0];    
    NSString *firstCase = [args objectAtIndex:1];    
}

从这里得到了答案