小编han*_*cop的帖子

我编写MySQL StoredProcedure来为每个表值创建并返回新的ID,但是,它在MySQL WorkBench和Java应用程序的last_insert_id()上得到了错误的值.

将从多个会话中调用此过程.

CALL `GET_NEW_ID`('test', @test);
select @test;

它给了我"141215000000",这意味着last_insert_id()一直返回0.我看到它正确地将新数据插入到seq_data中.

CREATE PROCEDURE `GET_NEW_ID`(IN V_TABLE VARCHAR(10), OUT V_ID VARCHAR(12))
BEGIN

    INSERT INTO seq_data ( id, `name`, `stat_date`)
    SELECT IFNULL(MAX(id), 0)+1, V_TABLE, DATE_FORMAT(NOW(),'%Y%m%d') FROM seq_data WHERE name = V_TABLE AND stat_date = DATE_FORMAT(NOW(),'%Y%m%d');
    SET V_ID = concat(DATE_FORMAT(NOW(),'%y%m%d'),LPAD(LAST_INSERT_ID(), 6, '0'));

END

表看起来像这样.

CREATE TABLE `seq_data` (
  `id` int(6) NOT NULL AUTO_INCREMENT,
  `name` varchar(20) COLLATE utf8_bin NOT NULL,
  `stat_date` varchar(8) COLLATE utf8_bin NOT NULL,
  PRIMARY KEY (`id`,`name`,`stat_date`)
) ENGINE=InnoDB AUTO_INCREMENT=12 DEFAULT CHARSET=utf8 COLLATE=utf8_bin;

我的目标是...... …

类c扩展线程

static Queue<Socket> socketQueue
Make connection to another server or client
And then add socket to socketqueue

类a扩展线程

method a
bufferedinputstream bis = socketQueue.poll
Do work
Make bis null without closing it<br>

b类扩展线程

Method b
Bufferedinputstream bis = socketqueue.poll
Do work
Make bis null without closing it

我确实使bufferedinput流为null,因为我不想关闭连接的套接字.几个帖子告诉我关闭输入/输出流也会关闭套接字.每当我使用带有套接字的输入/输出流时,如果它不为null,我通常会关闭流和套接字.

我在这里尝试做的是使套接字处于活动状态并在需要输入或输出流时重用,而无需再次连接.

我尝试了socket.shutdowninput和output,但是,当我使用套接字创建另一个输入/输出流时,这会引发异常.

在这一点上有什么我误解或遗失的吗？

在调用dismissKeyboard时,我将每个UITextField添加到resignFirstResponder.

有没有办法可以获得当前所选UITextField的id并使其成为resignFirstResponder？

#import "NewBabyViewController.h"

@interface NewBabyViewController ()
@property (weak, nonatomic) IBOutlet UITextField *BabyName;
@property (weak, nonatomic) IBOutlet UITextField *BabyNickname;    
@end

@implementation NewBabyViewController

- (void)viewDidLoad
{
    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]
                                   initWithTarget:self
                                   action:@selector(dismissKeyboard)
                                   ];
    [self.view addGestureRecognizer:tap];
}

-(void)dismissKeyboard{

    [self.view endEditing:YES];
    //[self.BabyName resignFirstResponder];
    //[self.BabyNickname resignFirstResponder];
}

-(IBAction)textFieldDone:(id)sender
{
    [sender resignFirstResponder];
}

@end