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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, id responseObject))success
downloadFailure:(void (^)(AFHTTPRequestOperation *operation, NSError *error))failure
progress:(void (^)(float progress))progress
{
//沙盒路径 //NSString *savedPath = [NSHomeDirectory() stringByAppendingString:@"/Documents/xxx.zip"];
AFHTTPRequestSerializer *serializer = [AFHTTPRequestSerializer serializer];
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 = [[AFHTTPRequestOperation alloc]initWithRequest:request];
[operation setOutputStream:[NSOutputStream outputStreamToFileAtPath:savedPath append:NO]];
[operation setDownloadProgressBlock:^(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead) {
float p = (float)totalBytesRead / totalBytesExpectedToRead;
progress(p);
NSLog(@"download：%f", (float)totalBytesRead / totalBytesExpectedToRead);
}];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
success(operation,responseObject);
NSLog(@"下载成功");
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
success(operation,error);
NSLog(@"下载失败");
}];
[operation start];
}
//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, id responseObject) {
} downloadFailure:^(AFHTTPRequestOperation *operation, NSError *error) {
} progress:^(float progress) {
}];
}
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原文地址：http://www.cnblogs.com/yuanxuan/p/5103027.html
