ios-using Afnetworking (AFN)-Upload images

ios-using afnetworking (AFN)-Upload images 

Official advice on how to use AFN

1. Define a global afhttpclient: Contains

1> BaseURL

2> Request

3> Operation Queue Nsoperationqueue

2. Responsible for all network operation requests by Afhttprequestoperation(HTTP request operation)

3. Modify the Xxx-prefix.pch file

#import <MobileCoreServices/MobileCoreServices.h>

#import <SystemConfiguration/SystemConfiguration.h>

0. Import Framework Preparation Work

1. Dragging a frame program into a project

·2. Add iOS Framework Reference

–systemconfiguration.framework

–mobilecoreservices.framework

• 3. Introduced

#import "AFNetworking.h"

1.AFN client, initialized with base address, and instantiates an operations queue for subsequent multithreading2. Using AFN to achieve file upload operation fine1 #pragma mark-File upload

/* 5 If you need to modify this code, you can adjust the position 6 7 1. Change the upload.php to the site developer's address 8 2. Change the file to the field name 9 *///1 for the website developer . httpClient URL//  AFN client, initializing with base address, and instantiating an operations queue for subsequent multithreading    

5 Nsurl *url = [Nsurl urlwithstring:@ "Http://192.168.3.255/~apple/qingche"];  6    afhttpclient *_httpclient = [[Afhttpclient alloc] initwithbaseurl:url];
  Nsoperationqueue*_queue = [[Nsoperationqueue alloc] init];

12//2. Upload Request Post13nsurlrequest*request = [_httpclient multipartformrequestwithmethod:@"POST "Path:@"upload.php "Parameters:nil constructingbodywithblock:^ (id<afmultipartformdata> formData) {14//Generate a data body to upload at this location,The form corresponds to the forms in the HTML file UIImage *image = [UIImage imagenamed:@"Avatar 1 "];NSData *data = uiimagepngrepresentation (image); 21st//In the network development, when uploading a file, the file is not allowed to be overwritten, the file name,To resolve this issue,You can use the current system event as the file name at upload timeNSDateFormatter *formatter = [[NSDateFormatter alloc] init];25//Set the time formatFormatter.dateformat =@"Yyyymmddhhmmss ";NSString *str = [formatter stringfromdate:[nsdate date]];NSString *filename = [NSString stringWithFormat:@"%@.png ", str]; 31/*32 This method parameter 33 1. [Binary data] 34 2 to upload. [Field ' file '] 35 3 for processing files [in upload.php] on the website. [FileName] 36 4 to be saved on the server. Upload the file [MimeType] 37 */
[FormDataAppendpartwithfiledata:data Name:@"File "Filename:filename MimeType:@"Image/png "];39}];41// 3. Operation (HTTP request operation) wrapped Urlconnetion42 afhttprequestoperation  *httprope = [[Afhttprequestoperation alloc] initwithrequest:request]; 44 [Httprope setcompletionblockwithsuccess:^ (Afhttprequestoperation * operation, id responseobject) {45 NSLog (@ " upload complete"); Span class= "number" >46} failure:^ (Afhttprequestoperation *operation, Nserror *error) {47 NSLog ( Span class= "string" >@ " upload failed->%@", error); 48}]; 50 // execute 51 [_httpclient.operationqueue  addoperation : op];                 

ios-using Afnetworking (AFN)-Upload images