网络篇----第三方框架AFN02 文件上传

AFN上传文件教程

最新推荐文章于 2024-08-11 19:11:11 发布

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最新推荐文章于 2024-08-11 19:11:11 发布

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原文链接：http://www.cnblogs.com/lizhan1991/p/4740334.html

本文介绍了使用AFNetworking (AFN) 进行文件上传的方法，包括构造multipart/form-data请求体的具体步骤，以及如何通过UIImagePickerController选择图片进行上传。适用于iOS开发者学习。

AFN上传方法是使用post,AFNpost 方法有两个

1、constructingBodyWithBlock 有这个的话，是使用上传文件的时候调用这个方法

- (AFHTTPRequestOperation *)POST:(NSString *)URLString
                      parameters:(id)parameters
       constructingBodyWithBlock:(void (^)(id <AFMultipartFormData> formData))block
                         success:(void (^)(AFHTTPRequestOperation *operation, id responseObject))success
                         failure:(void (^)(AFHTTPRequestOperation *operation, NSError *error))failure

2、下面这个post方法是使用在简单的登陆和查看文件的时候使用

- (AFHTTPRequestOperation *)POST:(NSString *)URLString

parameters:(id)parameters

success:(void (^)(AFHTTPRequestOperation *operation, id responseObject))success

failure:(void (^)(AFHTTPRequestOperation *operation, NSError *error))failu

3、文件上传事咧

    // 1.创建一个管理者
    AFHTTPRequestOperationManager *mgr = [AFHTTPRequestOperationManager manager];
    
    // 2.封装参数(这个字典只能放非文件参数)
    NSMutableDictionary *params = [NSMutableDictionary dictionary];
    params[@"username"] = @"123";
    params[@"age"] = @20;
    params[@"pwd"] = @"456";
    params[@"height"] = @1.55;
    
    // 2.发送一个请求
    NSString *url = @"http://192.168.15.172:8080/MJServer/upload";
    [mgr POST:url parameters:params constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
        NSData *fileData = UIImageJPEGRepresentation(self.imageView.image, 1.0);
        [formData appendPartWithFileData:fileData name:@"file" fileName:@"haha.jpg" mimeType:@"image/jpeg"];
        // 不是用这个方法来设置文件参数
//        [formData appendPartWithFormData:fileData name:@"file"];
    } success:^(AFHTTPRequestOperation *operation, id responseObject) {
        NSLog(@"上传成功");
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
        NSLog(@"上传失败");
    }];

4、使用sheet选择调用照相机和相册

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
    UIImagePickerController *ipc = [[UIImagePickerController alloc] init];
    // 设置代理
    ipc.delegate = self;
    
    switch (buttonIndex) {
        case 0: { // 拍照
            if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) return;
            ipc.sourceType = UIImagePickerControllerSourceTypeCamera;
            break;
        }
        case 1: { // 相册
            if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) return;
            ipc.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
            break;
        }
        default:
            break;
    }
    
    // 显示控制器
    [self presentViewController:ipc animated:YES completion:nil];
}