天狐博客 » AFNetworking Block下载文件保存到沙盒

来源：互联网发布：java实例化对象的方法编辑：程序博客网时间：2024/06/08 13:41

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/**
*  @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];
 
}

Objective-C
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//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){
        
    }];
}

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