iOS json 解析遇到error： Error Domain=NSCocoaErrorDomain Code=3840 "The operation couldn’t be completed.

Error Domain=NSCocoaErrorDomain Code=3840 "The operation couldn’t be completed. (Cocoa error 3840.)" (Unescaped control character around character 1419.) UserInfo=0x1563cdd0 {NSDebugDescription=Unescaped control character around character 1419.}

之前解析json的时候都是标准格式，json数据当中没有 \n \r \t 等制表符。

今天在解析的时候发现json解析时好时坏，用在线json解析也米有问题。找了半天终于发现是制表符在作怪，由于标准的json解析是不允许有这几个制表符的。所以在收到保温的时候我们需要把这几个制表符给过滤掉。

 

 

 NSString * responseString = [request responseString];

    responseString = [responseString stringByReplacingOccurrencesOfString:@"\r\n" withString:@""];

    responseString = [responseString stringByReplacingOccurrencesOfString:@"\n" withString:@""];

    responseString = [responseString stringByReplacingOccurrencesOfString:@"\t" withString:@""];

    NSLog(@"responseString = %@",responseString);

    

    SBJsonParser *parser = [[[SBJsonParser alloc]init] autorelease];

    id returnObject = [parser objectWithString:responseString];

    NSDictionary *userInfo = nil;

    NSArray *userArr = nil;

    if ([returnObject isKindOfClass:[NSDictionary class]]) {

        if (userInfo) {

            [userArr release];

        }

        userInfo = (NSDictionary*)returnObject;

    }

    else if ([returnObject isKindOfClass:[NSArray class]]) {

        userArr = (NSArray*)returnObject;

        

    }

    

    NSError* e = nil;

    

//系统自带的解析方式。

    NSDictionary * userInfo = [NSJSONSerialization JSONObjectWithData:[jsonString dataUsingEncoding:NSUTF8StringEncoding] options:NSJSONReadingMutableLeaves error:&e];

    if (e) {

        NSLog(@"%@",e);

    }