iOS数组和字典转Json字符串

JSON序列化与字符串转换技术

最新推荐文章于 2024-07-07 03:25:55 发布

原创最新推荐文章于 2024-07-07 03:25:55 发布 · 1.4w 阅读

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本文详细介绍了如何使用Objective-C中的NSJSONSerialization类将字典和数组转换为JSON字符串，包括具体方法实现和示例代码。

+ (NSString *)dictionaryToJSONString:(NSDictionary *)dictionary

{

NSError *error = nil;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dictionary options:NSJSONWritingPrettyPrinted error:&error];
NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
// NSString *jsonTemp = [jsonString stringByReplacingOccurrencesOfString:@"\n" withString:@""];
// NSString *jsonResult = [jsonTemp stringByReplacingOccurrencesOfString:@" " withString:@""];
return jsonString;
}

+ (NSString *)arrayToJSONString:(NSArray *)array

{

NSError *error = nil;
// NSMutableArray *muArray = [NSMutableArray array];
// for (NSString *userId in array) {
// [muArray addObject:[NSString stringWithFormat:@"\"%@\"", userId]];
// }
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:array options:NSJSONWritingPrettyPrinted error:&error];
NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
// NSString *jsonTemp = [jsonString stringByReplacingOccurrencesOfString:@"\n" withString:@""];
// NSString *jsonResult = [jsonTemp stringByReplacingOccurrencesOfString:@" " withString:@""];
// NSLog(@"json array is: %@", jsonResult);
return jsonString;
}