IOS版本检查更新 没有用了

NSString *currentVersion = [self getLocalVersion];
        NSString *lastVersion = [self getCurrentAppStoreVersion];
        if (![lastVersion isEqualToString:currentVersion]) {
            
            UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"更新" message:@"有新的版本更新,是否前往更新?" delegate:self cancelButtonTitle:@"关闭" otherButtonTitles:@"更新", nil];
            alert.tag = 10000;
            [alert show];
        }
        else
        {
            UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"更新" message:@"此版本为最新版本" delegate:self cancelButtonTitle:@"确定" otherButtonTitles:nil, nil];
            alert.tag = 10001;
            [alert show];
        }

//本机版本号

- (NSString *)getLocalVersion{
    
    NSDictionary *appInfo = [[NSBundle mainBundle] infoDictionary];
    NSString *currentVersion = [appInfo objectForKey:@"CFBundleVersion"];
    return currentVersion;
}


//线上版本号
- (NSString *)getCurrentAppStoreVersion
{
    NSString *URL = @"http://itunes.apple.com/lookup?id=550383618";
    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
    [request setURL:[NSURL URLWithString:URL]];
    [request setHTTPMethod:@"POST"];
    NSHTTPURLResponse *urlResponse = nil;
    NSError *error = nil;
    NSData *recervedData = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponse error:&error];
    
    NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:recervedData options:NSJSONReadingMutableContainers error:nil];
    
    NSArray *infoArray = [dic objectForKey:@"results"];
    NSString *lastVersion = nil;
    if ([infoArray count]) {
        NSDictionary *releaseInfo = [infoArray objectAtIndex:0];
        lastVersion = [releaseInfo objectForKey:@"version"];
        NSLog(@"HAHAHAHA%@",lastVersion);
    }
    
    return lastVersion;
}
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
    if (alertView.tag==10000) {
        if (buttonIndex==1) {
            NSURL *url = [NSURL URLWithString:@"itms-apps://itunes.apple.com/us/app/id550383618?mt=8"];
            [[UIApplication sharedApplication]openURL:url];
        }
    }
}

当前版本

    - (NSString *)getCurrentLocalVersion{
    NSDictionary *infoDic = [[NSBundle mainBundle] infoDictionary];  
    CFShow(infoDic);  
    NSString *appVersion = [infoDic objectForKey:@"CFBundleVersion"]; 
       }   
线上版本
       - (NSString *)getCurrentAppStoreVersion
        {
    NSString *URL = @"http://itunes.apple.com/lookup?id=550383618";
    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
    [request setURL:[NSURL URLWithString:URL]];
    [request setHTTPMethod:@"POST"];
    NSHTTPURLResponse *urlResponse = nil;
    NSError *error = nil;
    NSData *recervedData = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponse error:&error];
    
    NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:recervedData options:NSJSONReadingMutableContainers error:nil];
    
    NSArray *infoArray = [dic objectForKey:@"results"];
    NSString *lastVersion = nil;
    if ([infoArray count]) {
        NSDictionary *releaseInfo = [infoArray objectAtIndex:0];
        lastVersion = [releaseInfo objectForKey:@"version"];
        NSLog(@"HAHAHAHA%@",lastVersion);
    }
    
    return lastVersion;
    }

下面是解析

         - (NSString *)getCurrentAppStoreVersion
     {
    //        具体步骤如下:
    
        //        具体步骤如下:
        //        1,用 POST 方式发送请求:
        //    http://itunes.apple.com/search?term=你的应用程序名称&entity=software
        //
        //        更加精准的做法是根据 app 的 id 来查找:
        //    http://itunes.apple.com/lookup?id=你的应用程序的ID
        //#define APP_URL http://itunes.apple.com/lookup?id=你的应用程序的ID
        //
        //        你的应用程序的ID 是 itunes connect里的 Apple ID
        //
        //        2,从获得的 response 数据中解析需要的数据。因为从 appstore 查询得到的信息是 JSON 格式的,所以需要经过解析。解析之后得到的原始数据就是如下这个样子的:
        //        {
        //            resultCount = 1;
        //            results =     (
        //                           {
        //                               artistId = 开发者 ID;
        //                               artistName = 开发者名称;
        //                               price = 0;
        //                               isGameCenterEnabled = 0;
        //                               kind = software;
        //                               languageCodesISO2A =             (
        //                                                                 EN
        //                                                                 );
        //                               trackCensoredName = 审查名称;
        //                               trackContentRating = 评级;
        //                               trackId = 应用程序 ID;
        //                               trackName = 应用程序名称";
        //                               trackViewUrl = 应用程序介绍网址;
        //                               userRatingCount = 用户评级;
        //                               userRatingCountForCurrentVersion = 1;
        //                               version = 版本号;
        //                               wrapperType = software;
        //                           }
        //                           );
        //        }
        //
        //        然后从中取得 results 数组即可,具体代码如下所示:
        //
        //        NSDictionary *jsonData = [dataPayload JSONValue];
        //        NSArray *infoArray = [jsonData objectForKey:@"results"];
        //        NSDictionary *releaseInfo = [infoArray objectAtIndex:0];
        //        NSString *latestVersion = [releaseInfo objectForKey:@"version"];
        //        NSString *trackViewUrl = [releaseInfo objectForKey:@"trackViewUrl"];
        //
        //        如果你拷贝 trackViewUrl 的实际地址,然后在浏览器中打开,就会打开你的应用程序在 appstore 中的介绍页面。当然我们也可以在代码中调用 safari 来打开它。
        //        UIApplication *application = [UIApplication sharedApplication];
        //        [application openURL:[NSURL URLWithString:trackViewUrl]];
        //
        
    
    //        具体代码如下:
    //{
                NSString *URL = @"http://itunes.apple.com/lookup?id=550383618";
                NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
                [request setURL:[NSURL URLWithString:URL]];
                [request setHTTPMethod:@"POST"];
                NSHTTPURLResponse *urlResponse = nil;
                NSError *error = nil;
                NSData *recervedData = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponse error:&error];
        
//                NSString *results = [[NSString alloc] initWithBytes:[recervedData bytes] length:[recervedData length] encoding:NSUTF8StringEncoding];
//                NSDictionary *dic = [results JSONValue];
    
    NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:recervedData options:NSJSONReadingMutableContainers error:nil];
    
    
                NSArray *infoArray = [dic objectForKey:@"results"];
                if ([infoArray count]) {
                    NSDictionary *releaseInfo = [infoArray objectAtIndex:0];
                    NSString *lastVersion = [releaseInfo objectForKey:@"version"];
                    NSLog(@"HAHAHAHA%@",lastVersion);
                }
    //}
    NSURL *url = [NSURL URLWithString:@"https://itunes.apple.com"];
    [[UIApplication sharedApplication]openURL:url];
    return @"1234";
}

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