把txt文件中的json字符串写到plist文件中

- (void)json2Plist
{NSString *filePath = [self applicationDocumentsDirectoryFileName:@"json"];NSMutableArray *tempArray = [[NSMutableArray alloc] initWithContentsOfFile:filePath];//第一次添加数据时,数组为空if (tempArray.count == 0) {tempArray = [NSMutableArray array];}
　　//文件名(utf-8编码)NSString *path = [[NSBundle mainBundle] pathForResource:@"city2" ofType:@"txt"];NSString *contents = [[NSString alloc] initWithContentsOfFile:path encoding:NSUTF8StringEncoding error:nil];NSArray  *list = [contents componentsSeparatedByString:@","];for (NSString *tempStr in list) {NSDictionary *dict = [tempStr propertyListFromStringsFileFormat];[tempArray addObject:dict];}BOOL success = [tempArray writeToFile:filePath atomically:YES];NSLog(@"success:%d",success);
}#pragma mark - 获取沙盒中的Plist文件路径
- (NSString *)applicationDocumentsDirectoryFileName:(NSString *)fileName
{NSString *filePath;//沙盒中的Document文件夹NSString *documentDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];//获取传来的Plist文件名NSString *fileNameStr = [NSString stringWithFormat:@"%@.plist",fileName];filePath = [documentDirectory stringByAppendingPathComponent:fileNameStr];return filePath;
}

//txt文本格式示例:
{id = 110000;contents = "北京市";},{id = 120000;contents = "天津市";},{id = 130100;contents = "石家庄市";},{id = 654300;contents = "阿勒泰地区";}