天狐博客 » AFNetworking Block下载文件保存到沙盒

电玩女神 2023-10-16 22:53 27阅读 0赞

/**
     *  @author Jakey
     *
     *  @brief  下载文件
     *
     *  @param paramDic   附加post参数
     *  @param requestURL 请求地址
     *  @param savedPath  保存 在磁盘的位置
     *  @param success    下载成功回调
     *  @param failure    下载失败回调
     *  @param progress   实时下载进度回调
     */
    - (void)downloadFileWithOption:(NSDictionary*)paramDic
                    withInferface:(NSString*)requestURL
                        savedPath:(NSString*)savedPath
                  downloadSuccess:(void(^)(AFHTTPRequestOperation*operation,idresponseObject))success
                  downloadFailure:(void(^)(AFHTTPRequestOperation*operation,NSError*error))failure
                         progress:(void(^)(floatprogress))progress{
        //沙盒路径
        NSString *savedPath = [NSHomeDirectory() stringByAppendingString:@"/Documents/xxx.zip"];
        AFHTTPRequestSerializer*serializer=[AFHTTPRequestSerializerserializer];
        NSMutableURLRequest*request=[serializer
                                     requestWithMethod:@"POST"
                                     URLString:requestURL
                                     parameters:paramDic
                                     error:nil];
        
        //以下是手动创建request方法 AFQueryStringFromParametersWithEncoding有时候会保存
        //NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:requestURL]];
        //NSMutableURLRequest *request =[[[AFHTTPRequestOperationManager manager]requestSerializer]requestWithMethod:@"POST" URLString:requestURL parameters:paramaterDic error:nil];
        //NSString *charset = (__bridge NSString *)CFStringConvertEncodingToIANACharSetName(CFStringConvertNSStringEncodingToEncoding(NSUTF8StringEncoding));
        //[request setValue:[NSString stringWithFormat:@"application/x-www-form-urlencoded;charset=%@", charset] forHTTPHeaderField:@"Content-Type"];
        //[request setHTTPMethod:@"POST"];
        //[request setHTTPBody:[AFQueryStringFromParametersWithEncoding(paramaterDic,NSASCIIStringEncoding) dataUsingEncoding:NSUTF8StringEncoding]];
    
        AFHTTPRequestOperation *operation = [[AFHTTPRequestOperationalloc]initWithRequest:request];
        [operation setOutputStream:[NSOutputStream
                          outputStreamToFileAtPath:savedPath
                          append:NO]];
        [operation setDownloadProgressBlock:^(NSUIntegerbytesRead,longlongtotalBytesRead,longlongtotalBytesExpectedToRead){
             floatp = (float)totalBytesRead/totalBytesExpectedToRead;
             progress(p);
             NSLog(@"download：%f",(float)totalBytesRead/totalBytesExpectedToRead);
         }];
        [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation*operation,idresponseObject){
             success(operation,responseObject);
             NSLog(@"下载成功");
         }failure:^(AFHTTPRequestOperation*operation,NSError*error){
             success(operation,error);
             NSLog(@"下载失败");
         }];
        [operationstart];
    }
    
    //使用
    - (IBAction)downloadTouched:(id)sender{
        NSString *savedPath = [NSHomeDirectory() stringByAppendingString:@"/Documents/QQ7.6.exe"];
        NSDictionary *paramaterDic= @{@"jsonString":[@{@"userid":@"2332"} JSONString]?:@""};
        [self downloadFileWithOption:@{@"userid":@"123123"}
                       withInferface:@"http://dldir1.qq.com/qqfile/qq/QQ7.6/15742/QQ7.6.exe"
                           savedPath:savedPath
                     downloadSuccess:^(AFHTTPRequestOperation*operation,idresponseObject){
         }
                     downloadFailure:^(AFHTTPRequestOperation*operation,NSError*error){
         }
                            progress:^(floatprogress){
         }];
    }

Objective-