半城柳色半声笛

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半城柳色半声笛 2024-12-12 07:34:28

您可以尝试 @PostConstruct 注释来执行任何注入所有依赖项后的逻辑类型:

@PostConstruct
private void initSession() {
  session = sessionFactory.openSession();
}

You can try @PostConstruct annotation to execute any kind of logic after all dependencies are injected:

@PostConstruct
private void initSession() {
  session = sessionFactory.openSession();
}

JBoss 工厂注入和方法调用

半城柳色半声笛 2024-12-12 05:50:58

一个优雅的解决方案是:

findLastPatternMatching[{Longest[start___], f_, ___}, f_] := Length[{start}]+1

(* match this pattern if item not in list *)
findLastPatternMatching[_, _] := -1

但由于它基于模式匹配,因此它比建议的其他解决方案慢得多。

An elegant solution would be:

findLastPatternMatching[{Longest[start___], f_, ___}, f_] := Length[{start}]+1

(* match this pattern if item not in list *)
findLastPatternMatching[_, _] := -1

but as it's based on pattern matching, it's way slower than the other solutions suggested.

在 Mathematica 中从列表末尾搜索

半城柳色半声笛 2024-12-12 05:37:12

我曾经在一家生产学校系统的公司工作;尽管 50GB 对于大多数人来说都算大了,但少数人的数据库要大得多。历史记录通常是这里的问题,特别是如果您随着时间的推移添加其他功能(例如潜在客户导入)。

您描述了两种场景:线性分片和纵向扩展架构。线性分片为每个学校实现一个数据库。扩展将它们全部放在同一个数据库中。对于 SQL Azure,还有其他选项需要考虑。请参阅我发布的关于各种可扩展性模型的白皮书的 Blob 帖子:http://geekswithblogs.net/hroggero/archive/2010/12/23/multitenant-design-for-sql-azure-white-paper-available.aspx

SQL Azure 还宣布了即将推出的功能称为数据联合。这最有可能适合你。以下是您可能会发现相关的两篇博客文章:

http://geekswithblogs.net/hroggero/archive/2011/07/23/preparing-for-data-federation-in-sql-azure.aspx

http://geekswithblogs.net/hroggero/archive/2011/09/07/sharding-library-for-sql-azure-data-federation.aspx

最后一个链接讨论了一个开放-我正在构建名为 Enzo Shard 的源库,以帮助开发人员利用 SQL Azure 数据联合的未来功能。支持数据联合的版本处于测试阶段,允许跨联合成员(即数据库)执行并行查询。

最后,不要错过 Cihan(来自 Microsoft)的帖子,其中更详细地讨论了此功能:http: //blogs.msdn.com/b/cbiyikoglu/

总之,SQL Azure 中的可扩展性领域正在不断发展。然而,许多功能将会提供显着的数据增长和性能机会。

I used to work for a company that makes school systems; although 50GB would be considered large for most of them, a few had databases that were much larger. Historical records are typically the issue here, specially if you will add additional features over time, such as lead import.

You described two scenarios: a linear shard and a scale up architecture. The linear shard implements a database per school. The scale up puts them all in the same database. There are additional options to consider with SQL Azure. See one of my blob posts about a white paper I published regarding various scalability models: http://geekswithblogs.net/hroggero/archive/2010/12/23/multitenant-design-for-sql-azure-white-paper-available.aspx

Also SQL Azure announced an upcoming feature called Data Federation. This is most likely for you. Here are two blog posts you may find relevant:

http://geekswithblogs.net/hroggero/archive/2011/07/23/preparing-for-data-federation-in-sql-azure.aspx

http://geekswithblogs.net/hroggero/archive/2011/09/07/sharding-library-for-sql-azure-data-federation.aspx

The last link discusses an open-source library, called the Enzo Shard, that I am building to assist developers in taking advantage of the future capabilities of SQL Azure Data Federation. The version that supports data federation is in Beta and allows parallel queries to be performed across federation members (i.e. databases).

Finally, don't miss the posts by Cihan (from Microsoft) that discusses this feature in greater details: http://blogs.msdn.com/b/cbiyikoglu/

In summary, the field of scalability in SQL Azure is evolving. However many capabilities will be coming providing significant data growth and performance oppotunities.

在 SQL Azure 中设计可扩展数据库时需要帮助

半城柳色半声笛 2024-12-11 18:45:11

你拼错了 succes: 应该是 success:

you misspelled succes: it should be success:

jquery和php不在两个页面之间传递数据

半城柳色半声笛 2024-12-11 16:57:00

我在使用 VS 2010 时遇到了很多问题(锁定 exe 文件、更新服务引用等)。但是在 VS 2010 SP1 之后,我没有看到这些错误。希望你有SP1

I have had a lot of issues (locking exe files, updating service references and so on) with VS 2010. But after VS 2010 SP1, I don't see those errors. Hope you have SP1

Visual Studio 2010 关闭数据集设计器错误

半城柳色半声笛 2024-12-11 15:00:40

REST 是一种用于构建分布式系统的架构风格。这通常意味着您有一个客户端应用程序和一个服务器应用程序。当您的客户端应用程序需要访问服务器上的某些信息时,请创建一个可用于标识该信息的 URL。

URL 的结构对于客户端应用程序来说并不重要,因此无论您使用什么服务器框架,都可以使用最简单的结构。

REST is an architectural style for building distributed systems. Which generally means that you have a client application and a server application. When your client application needs to access some piece of information on your server, then create an URL that you can use to identify that piece of information.

The structure of the URL is not really important to the client application, so use whatever structure is easiest with whatever server framework you are using.

REST URL 通常是如何定义的?

半城柳色半声笛 2024-12-11 14:26:25
#nav{
    position: -webkit-sticky; /* Safari */
    position: sticky;
    top: 0;
    margin: 0 auto;
    z-index: 9999;
    background-color: white;
}
#nav{
    position: -webkit-sticky; /* Safari */
    position: sticky;
    top: 0;
    margin: 0 auto;
    z-index: 9999;
    background-color: white;
}

如何使内容显示在固定 DIV 元素下方?

半城柳色半声笛 2024-12-11 08:26:58

Internet Explorer 有 z 索引错误。您必须从实数 (1) 开始,然后从那里向上。 Auto 可能会导致问题,请尝试将其更改为 1 或完全删除它。 Z-index 是从父元素继承的,因此如果 auto 是您的首选行为,请将其删除。

Internet Explorer has a z-index error. You must start at a real number (1) and go up from there. Auto may cause an issue, try either changing it to 1 or removing it completely. Z-index is inherited from the parent element, so if auto is your preferred behaviour, remove it.

弹出窗口中的选择框在 Internet Explorer 中不起作用

半城柳色半声笛 2024-12-11 06:53:33

非LINQ扩展方式:

int i;
for (i=0;i < y.Count;i++) 
{
     if (i+1 < x.Count)
         x[i+1] = y[i];
     else
         x.Add(y[i]); 
 }
 //If you dont want trailing elements to remain in x
 for (;i < x.Count;i++)
     x.RemoveAt(i);

Non-LINQ extention way:

int i;
for (i=0;i < y.Count;i++) 
{
     if (i+1 < x.Count)
         x[i+1] = y[i];
     else
         x.Add(y[i]); 
 }
 //If you dont want trailing elements to remain in x
 for (;i < x.Count;i++)
     x.RemoveAt(i);

在第 n 个项目之后轻松更改列表

半城柳色半声笛 2024-12-11 05:19:18

工作演示

使用$(this)

$(document).ready(function() {
    $('tr.b').hide();
    $('div.mainmenu').click(function() {
        $('tr.b').toggle(400);
        return false;
    });
    $('div.mainmenu, .menu').hover(function() {
        $(this).css('color', 'pink');
    }, function() {
        $(this).css('color', 'white');
    });
});

$(document).ready(function() {
    $('p.1').mouseover(function() {
        $(this).css('color', 'blue');
    });
    $('p.1').mouseout(function() {
        $(this).css('color', 'gray');
    });
});

WORKING DEMO

use $(this)

$(document).ready(function() {
    $('tr.b').hide();
    $('div.mainmenu').click(function() {
        $('tr.b').toggle(400);
        return false;
    });
    $('div.mainmenu, .menu').hover(function() {
        $(this).css('color', 'pink');
    }, function() {
        $(this).css('color', 'white');
    });
});

$(document).ready(function() {
    $('p.1').mouseover(function() {
        $(this).css('color', 'blue');
    });
    $('p.1').mouseout(function() {
        $(this).css('color', 'gray');
    });
});

鼠标悬停时仅悬停一行

半城柳色半声笛 2024-12-11 04:34:36

可能重复 getExtra from Intent launch from aendingIntent

如果没有的话如果没有帮助,请告诉我们更多有关您的文件的信息(您需要有一个设置闹钟的活动、启动服务的广播接收器以及告诉应用程序做什么的服务当闹钟响起时)

Possible duplicate of getExtra from Intent launched from a pendingIntent

If that doesn't help, please tell us a bit more about your files (you need to have an activity where you set up the alarm, a broadcastreceiver that starts a service, and the service where you tell the app what to do when the alarm goes off)

检索额外意图时出现问题

半城柳色半声笛 2024-12-11 02:21:04

为此,请尝试 Android Chronometer 类,它比发明你的要简单得多 此处给出了

一个非常基本的示例

For this purpose try Android Chronometer Class, Its much more simpler than inventing your own

A very basic example is given here

Android 录音时显示计时器

半城柳色半声笛 2024-12-10 19:49:46

Jquery 就可以了。

首先,构建一个普通表单,为

标记指定一个 id,例如 #someform,并为提交按钮指定一个 id,例如 #somebutton< /代码>。

然后将处理程序绑定到#someform:

$('#someform').submit(function(){
    var params=$(this).serialize();
    //here you submit params using $.post
    document.selectElementById('somebutton').disabled=true;
    return false;
})

无论有没有 js 支持,它都可以工作。

Jquery will do just fine.

First you build a normal form, give the <form> tag an id, say #someform, and an id to the submit button, say #somebutton.

Then you bind an handler to #someform:

$('#someform').submit(function(){
    var params=$(this).serialize();
    //here you submit params using $.post
    document.selectElementById('somebutton').disabled=true;
    return false;
})

It will work with or without js support.

全功能 jquery 表单提交按钮

半城柳色半声笛 2024-12-10 19:27:59

如果您上传的视频/图像较小,值可能会相同。您可以通过上传大小超过 70MB 的视频来检查并检查您的加载值和总计值,它应该为您提供不同的总计值和加载值

Values might be same if your uploaded video/image size is small. You can check by uploading video of size more than 70MB and check your loaded and total values, it should give you different values in total and loaded

XMLHttpRequest - event.loaded 和 event.total 值的问题

半城柳色半声笛 2024-12-10 18:58:32

不,文本框不会有相同的 ID。因为它们位于不同的用户控件中,所以它们将被分配两个不同的ClientID。

您可以通过在浏览器中查看页面的源代码来查看控件的 ID。 ClientID 将如下所示:ctl00_ContentBody_tb1_TextBox1

No, the TextBoxes will not have the same ID. Because they are in different user controls, they will be assigned two different ClientIDs.

You can see the IDs of the controls by viewing the source of the page in the browser. The ClientID will look something like this: ctl00_ContentBody_tb1_TextBox1

是否可以在页面中多次使用同一个用户控件?

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