我正在尝试发送帖子请求 这是我的尝试：
-(void)Test{
NSDictionary * orderMasterDict = @{@"distributorId":@10000,
@"fieldUsersId": @3,
@"itemId":@0,@"orderMatserId":@56358 };
Globals.OrderDetailsArray = [NSMutableArray arrayWithObjects:orderDetailsDictAnatomy,orderDetailsDictTexture,orderDetailsDictTranslucency, nil];
NSData *postData = [NSJSONSerialization dataWithJSONObject:Globals.OrderDetailsArray options:NSJSONWritingPrettyPrinted error:nil];
NSData *postData2 = [NSJSONSerialization dataWithJSONObject:orderMasterDict options:NSJSONWritingPrettyPrinted error:nil];
NSString *jsonString2 = [[NSString alloc] initWithData:postData2 encoding:NSUTF8StringEncoding];
NSString *jsonString = [[NSString alloc] initWithData:postData encoding:NSUTF8StringEncoding];
NSMutableDictionary* _params = [[NSMutableDictionary alloc] init];
[_params setObject:jsonString2 forKey:@"orderMaster"];
[_params setObject:jsonString forKey:@"orderDetails"];
[_params setObject:[NSString stringWithFormat:@"3"] forKey:@"userId"];
[_params setObject:[NSString stringWithFormat:@"ALRAISLABS"] forKey:@"subsCode"];
// the boundary string : a random string, that will not repeat in post data, to separate post data fields.
NSString *BoundaryConstant = @"----------V2ymHFg03ehbqgZCaKO6jy";
// string constant for the post parameter 'file'. My server uses this name: `file`. Your's may differ
NSString* FileParamConstant = @"imageUpload";
// the server url to which the image (or the media) is uploaded. Use your server url here
NSURL* requestURL = [NSURL URLWithString:@"http://192.168.0.102:8080/Demo/Test/create"];
// create request
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData];
[request setHTTPShouldHandleCookies:NO];
[request setTimeoutInterval:30];
[request setHTTPMethod:@"POST"];
// set Content-Type in HTTP header
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@", BoundaryConstant];
[request setValue:contentType forHTTPHeaderField: @"Content-Type"];
// post body
NSMutableData *body = [NSMutableData data];
// add params (all params are strings)
for (NSString *param in _params) {
[body appendData:[[NSString stringWithFormat:@"--%@\r\n", BoundaryConstant] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n", param] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"%@\r\n", [_params objectForKey:param]] dataUsingEncoding:NSUTF8StringEncoding]];
}
// add image data
NSData *imageData = UIImageJPEGRepresentation(_uploadImageView.image, 0.6);
if (imageData) {
[body appendData:[[NSString stringWithFormat:@"--%@\r\n", BoundaryConstant] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"; filename=\"image.jpg\"\r\n", FileParamConstant] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"Content-Type: image/jpeg\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:imageData];
[body appendData:[[NSString stringWithFormat:@"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
}
[body appendData:[[NSString stringWithFormat:@"--%@--\r\n", BoundaryConstant] dataUsingEncoding:NSUTF8StringEncoding]];
// setting the body of the post to the reqeust
[request setHTTPBody:body];
// set the content-length
NSString *postLength = [NSString stringWithFormat:@"%lu", (unsigned long)[body length]];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
// set URL
[request setURL:requestURL];
NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
[[session dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
if (error){
NSLog(@"ERROR :",error);
}else{
NSDictionary *result = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:&error];
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
NSLog(@"response status code: %ld", (long)[httpResponse statusCode]);
if ([httpResponse statusCode] == 200) {
NSLog(@"StatusCode : %ld",(long)[httpResponse statusCode]);
}else{
NSLog(@"Error");
}
}
}] resume];}
如何制作multipartFormData请求？ 我试着谷歌搜索，无法找到适合这种情况的任何答案，并且考虑得很好。请帮我找到正确的解决方案。 提前谢谢。
答案 0 :(得分：1)
首先，您可以在NSData中更改图片，然后AFNetworking帮助您发布图片。
NSData *data = UIImagePNGRepresentation(yourImage);
imageData = [data base64EncodedStringWithOptions: NSDataBase64Encoding64CharacterLineLength];
然后使用此代码：
NSMutableDictionary *finaldictionary = [[NSMutableDictionary alloc] init];
[finaldictionary setObject:imageData forKey:@"image"];
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
manager.responseSerializer = [AFHTTPResponseSerializer serializer];
[manager POST: [NSString stringWithFormat: @"%@%@", IQAPIClientBaseURL, kIQAPIImageUpload] parameters: finaldictionary constructingBodyWithBlock: ^(id<AFMultipartFormData> formData) { }
progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
NSLog(@"Success response=%@", responseObject);
NSDictionary *responseDict = [NSJSONSerialization JSONObjectWithData: responseObject options: NSJSONReadingAllowFragments error: nil];
NSLog(@"%@", responseDict);
}
failure: ^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
NSLog(@"Errorrrrrrr=%@", error.localizedDescription);
}
];
答案 1 :(得分：0)
使用Alamofire
-(void)CreateOrder{
NSString * urlString = [NSString stringWithFormat:@"YOUR URL"
NSDictionary * orderMasterDict = @{@"distributorId":stakeholderID,
@"fieldUsersId": userID,
@"itemId":@0,@"orderMatserId":@0 };
Globals.OrderDetailsArray = [NSMutableArray arrayWithObjects:orderDetailsDictAnatomy,orderDetailsDictTexture,orderDetailsDictTranslucency, nil];
NSDictionary * consumerDetails = @{@"consumerName":Globals.PatientName,@"consumerReferenceId":Globals.PatientID,@"notes":Globals.PatientNotes,@"cunsumerContacNumber":@"456464654654"};
NSData *postData = [NSJSONSerialization dataWithJSONObject:Globals.OrderDetailsArray options:NSJSONWritingPrettyPrinted error:nil];
NSData *postData2 = [NSJSONSerialization dataWithJSONObject:orderMasterDict options:NSJSONWritingPrettyPrinted error:nil];
NSString *jsonString2 = [[NSString alloc] initWithData:postData2 encoding:NSUTF8StringEncoding];
NSString *jsonString = [[NSString alloc] initWithData:postData encoding:NSUTF8StringEncoding];
//retrieving userId from UserDefaults
prefs = [NSUserDefaults standardUserDefaults];
NSString * userIdString = [prefs stringForKey:@"userID"];
NSDictionary *parameters = @{@"orderMaster": jsonString2, @"orderDetails" : jsonString ,@"userId" : userIdString,@"subsCode" : @"ABC_MDENT"};
NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:urlString parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
//For adding Multiple images From selected Images array
int i = 0;
for(UIImage *eachImage in selectedImages)
{
UIImage *image = [self scaleImage:eachImage toSize:CGSizeMake(480.0,480.0)];
NSData *imageData = UIImageJPEGRepresentation(image,0.3);
[formData appendPartWithFileData:imageData name:@"imageUpload" fileName:[NSString stringWithFormat:@"file%d.jpg",i ] mimeType:@"image/jpeg"];
i++;
}
} error:nil];
AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
NSURLSessionUploadTask *uploadTask;
uploadTask = [manager
uploadTaskWithStreamedRequest:request
progress:^(NSProgress * _Nonnull uploadProgress) {
dispatch_async(dispatch_get_main_queue(), ^{
});
}
completionHandler:^(NSURLResponse * _Nonnull response, id _Nullable responseObject, NSError * _Nullable error) {
NSLog(@"responseObject : %@",responseObject);
if (error) {
NSlog(@"error")
} else {
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;
if ([httpResponse statusCode] == 200) {
resposeStatusCode = [responseObject objectForKey:@"statusCode"];
}else{
NSLog(@"requestError");
}
}
}];
[uploadTask resume]; }