iOS开发之将字典、数组转为JSON字符串方法

//将字典转换成json格式字符串,不含\n这些符号

+ (NSString *)gs_jsonStringCompactFormatForDictionary:(NSDictionary *)dicJson {

    

    if (![dicJson isKindOfClass:[NSDictionary class]] || ![NSJSONSerialization isValidJSONObject:dicJson]) {

        return nil;

    }

    

    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dicJson options:0 error:nil];

    NSString *strJson = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];

    return strJson;

}

//将数组转换成json格式字符串,不含\n这些符号

+ (NSString *)gs_jsonStringCompactFormatForNSArray:(NSArray *)arrJson {

    

    if (![arrJson isKindOfClass:[NSArray class]] || ![NSJSONSerialization isValidJSONObject:arrJson]) {

        return nil;

    }

    

    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:arrJson options:0 error:nil];

    NSString *strJson = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];

    return strJson;

}

//将字典转换成json格式字符串,含\n这些符号,便于阅读

+ (NSString *)gs_jsonStringPrettyPrintedFormatForDictionary:(NSDictionary *)dicJson {

    

    if (![dicJson isKindOfClass:[NSDictionary class]] || ![NSJSONSerialization isValidJSONObject:dicJson]) {

        return nil;

    }

    

    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dicJson options:NSJSONWritingPrettyPrinted error:nil];

    NSString *strJson = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];

    return strJson;

}

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转载自www.cnblogs.com/hecanlin/p/10752986.html