file类型图片上传

不需要考虑file转换问题，UIImageJPEGRepresentation(self.uploadImageView.allImages【i】,0.8)就是你想要的。

以下代码是我们用来传图的方式，其中name:@"images[]"换成你们后端程序对应的表单字段名

NSDictionary *param = @{@"type":self.typeId,

                            @"uid":self.userInfo[@"uid"],

                            @"project_id":self.projectId,

                            @"name":self.nameTextField.text,

                            @"info":self.infoTextView.text};

    NSLog(@"param:%@",param);

    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];

    [SVProgressHUD showWithStatus:@"正在上传图片" maskType:SVProgressHUDMaskTypeGradient];

    [manager POST:[NSString stringWithFormat:@"%@/projectLog/create",HOST_URL] parameters:param constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {

        for (int i = 0; i < self.uploadImageView.allImages.count; i++) {

            [formData appendPartWithFileData:UIImageJPEGRepresentation(self.uploadImageView.allImages（i）,0.8) name:@"images[]" fileName:@"something.jpg" mimeType:@"image/jpeg"];

        }

    } success:^(AFHTTPRequestOperation *operation, id responseObject) {

        if ([[responseObject objectForKey:@"code"] isEqualToNumber:@1]) {

            [SVProgressHUD showSuccessWithStatus:@"发布成功！"];

            [self.navigationController popViewControllerAnimated:YES];

        } else if ([[responseObject objectForKey:@"code"] isEqualToNumber:@400]) {

            [SVProgressHUD dismiss];

        } else {

            [SVProgressHUD dismiss];

            UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:[responseObject objectForKey:@"message"] message:nil delegate:nil cancelButtonTitle:@"确定" otherButtonTitles: nil];

            [alertView show];

        }

       

    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {

        NSLog(@"%@",error);

        [SVProgressHUD dismiss];

        [[[UIAlertView alloc]initWithTitle:@"上传失败" message:@"网络故障，请稍后重试" delegate:nil cancelButtonTitle:@"确定" otherButtonTitles:nil] show];

    }];