AFN下載文件 存到沙盒并讀取json

直接上代碼?

AFHTTPSessionManager *manage? = [AFHTTPSessionManager manager];

NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://xxxxxxxxxx/json/data.json"]];

NSURLSessionDownloadTask *downloadTask = [manage downloadTaskWithRequest:request progress:nil destination:^NSURL * _Nonnull(NSURL * _Nonnull targetPath, NSURLResponse * _Nonnull response) {

? ? ? ? ? ?NSString *caches = [NSHomeDirectory() stringByAppendingPathComponent:[NSString stringWithFormat:@"Documents/"]];

? ? ? ? ? NSString *fullpath = [caches stringByAppendingPathComponent:response.suggestedFilename];

? ? ? ? ?NSURL *filePathUrl = [NSURL fileURLWithPath:fullpath];

? ? ? ? ?return filePathUrl;

} completionHandler:^(NSURLResponse * _Nonnull response, NSURL * _Nonnull filePath, NSError * _Nonnull error) {

? ? ? ? NSLog(@"文件下載完畢---%@",filePath);

? ? ? ?NSData *data = [NSData dataWithContentsOfFile: ? ?[[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0] stringByAppendingPathComponent:@"type_all.json"]];

? ? ? ? ? ? id JsonObject=[NSJSONSerialization JSONObjectWithData:data

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? options:NSJSONReadingAllowFragments

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?error:nil];

// ? ? ? ?NSStringEncoding gbkEncoding =?

// CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000);

? // ? ? NSString *pageSource = [[NSString alloc] initWithData:data encoding:gbkEncoding];

// ? ? ? NSData *newData=[pageSource dataUsingEncoding:NSUTF8StringEncoding];

// ? ? ? ?self.allTypeArr = [NSJSONSerialization JSONObjectWithData:newData ?options:NSJSONReadingMutableContainers error:nil];

self.alltypeArr = JsonObject ;

? ? ? ? NSLog(@"===%@",self.alltypeArr);

}];

[downloadTask resume];