AFNetworking网络请求与图片上传工具（POST）

.h文件

#import <Foundation/Foundation.h>/** 成功Block  */
typedef void(^SuccessBlockType) (id responsData);
/** 失败Block  */
typedef void(^FaileBlockType) (NSError *error);@interface NetDataEngine : NSObject//网络请求
+ (void)postServerUrl:(NSString *)url parameters:(NSDictionary *)parameters success:(SuccessBlockType)success failure:(FaileBlockType)failure;//上传图片
+ (void)uploadWith:(UIImage *)upImg success:(SuccessBlockType)success failure:(FaileBlockType)failure;@end

.m文件

#import "NetDataEngine.h"
#import "AFNetworking.h"@implementation NetDataEngine+(AFHTTPSessionManager *)manager
{AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];// 声明上传的是json格式的参数，需要你和后台约定好，不然会出现后台无法获取到你上传的参数问题manager.requestSerializer = [AFHTTPRequestSerializer serializer]; // 上传普通格式//    manager.requestSerializer = [AFJSONRequestSerializer serializer]; // 上传JSON格式// 声明获取到的数据格式manager.responseSerializer = [AFHTTPResponseSerializer serializer]; // AFN不会解析,数据是data，需要自己解析//    manager.responseSerializer = [AFJSONResponseSerializer serializer]; // AFN会JSON解析返回的数据// 个人建议还是自己解析的比较好，有时接口返回的数据不合格会报3840错误，大致是AFN无法解析返回来的数据// 超时时间[manager.requestSerializer willChangeValueForKey:@"timeoutInterval"];manager.requestSerializer.timeoutInterval = 10.f;//设置请求超时时间[manager.requestSerializer didChangeValueForKey:@"timeoutInterval"];return manager;
}+ (void)postServerUrl:(NSString *)url parameters:(NSDictionary *)parameters success:(SuccessBlockType)success failure:(FaileBlockType)failure {AFHTTPSessionManager *manager = [self manager];[manager POST:url parameters:parameters progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableContainers error:nil];//        JGLog(@"%@",dict);success(dict);} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
//        JGLog(@"error:  %@",error);failure(error);}];
}+ (void)uploadWith:(UIImage *)upImg success:(SuccessBlockType)success failure:(FaileBlockType)failure {// 创建管理者对象AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];[manager POST:UP_PIC parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData>  _Nonnull formData) {// 获取图片数据NSData *fileData = UIImagePNGRepresentation(upImg);// 设置上传图片的名字NSDateFormatter *formatter = [[NSDateFormatter alloc] init];formatter.dateFormat = @"yyyyMMddHHmmss";NSString *str = [formatter stringFromDate:[NSDate date]];NSString *fileName = [NSString stringWithFormat:@"%@.png", str];[formData appendPartWithFileData:fileData name:@"image" fileName:fileName mimeType:@"image/png"];} progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {//上传成功后回调success(responseObject);} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
        //失败回调