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Play applications can be deployed virtually anywhere: inside Servlet containers, as standalone servers, in Google Application Engine, Stack, a Cloud, ... 阅读全文
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Here some simple tips to optimize your application for production.Configure your application.confFirst off, the best way to specify production mode is... 阅读全文
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When you work in a team, different developers will use different configuration keys in theirapplication.conf. For example, the log level, some databas... 阅读全文
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When you use a relational database, you need a way to track and organize your database schema evolutions. Typically there are several situation where ... 阅读全文
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The Play logger is built onLog4j. Since most Java libraries use Log4j or a wrapper able to use Log4j as a backend, you can easily configure logging th... 阅读全文
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Play’s dependency management system allows you to express your application’s external dependencies in a singledependencies.ymlfile.A Play application ... 阅读全文
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A Play application can be assembled from several application modules. This allows you to reuse application components across several applications or s... 阅读全文
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本章译者：@nixil虽然Play在设计之初就考虑了安全性问题，但是任何人都无法阻止程序员们自毁长城。以下的向导将会涉及web应用常见的安全性问题，以及在Play中该如何避免。Sessions你经常会需要保存一些跟用户有关的信息，比如登录状态之类的。如果没有session，用户就得在每个请求当中都携... 阅读全文
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Creating automatic test suites for your application is a good way to make it robust. It allows you to work in a very agile way.Play tests are built us... 阅读全文
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To create high-performance systems, sometimes you need to cache data. Play has a cache library and will useMemcachedwhen used in a distributed environ... 阅读全文
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E-mail functionality uses theApache Commons Emaillibrary under the hood. You can use theplay.libs.Mailutility class to send e-mail very easily.A simpl... 阅读全文
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本章译者：@nixil使用国际化支持(I18N)能够使你的应用根据用户所在地区的不同选择不同的语言。下面介绍如何在引用中使用国际化。只允许使用UTF-8Play只支持UTF-8一种字符编码.这是因为多编码会导致十分诡异难以处理的问题，所以我们决定仅支持一种。UTF-8编码涵盖了所有语言的所有字符。确... 阅读全文
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Play在内部使用了jQuery这个JavaScript库，让我们能够非常方便的进行Ajax操作。同时，为了能在JavaScript中方便地生成某个action对应的Url，Play还提供了一个jsAction标签，简化操作。配合jQuery使用jsAction标签在play的页面中，如果我们想取得... 阅读全文
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本章译者：@Sam Liu (译者未留下自己的主页，请Sam Liu见此文，加入群168013302联系‘大黄蜂@翻译play’)这一章主要讲解如何运用异步模式实现典型的长连接（long-polling）、流（streaming）和 推送方式（Comet-style） 的编程，以便于响应数以千万计的... 阅读全文
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Because Play is a web application framework, most of the application logic is done by controllers responding to HTTP requests.But sometimes you will n... 阅读全文
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Theplay.libspackage contains several useful libraries that will help you to achieve common programming tasks.Most of these libraries are simple helper... 阅读全文
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Play provides a set of very useful helpers to simplify the management of your JPA entities.Notethat you can still go back to the plain JPA API wheneve... 阅读全文
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Validations ensure that the data has certain values or meets specific requirements. You can use validation to verify that your models are correct befo... 阅读全文
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Play has an efficient templating system which allows to dynamically generate HTML, XML, JSON or any text-based formatted document. The template engine... 阅读全文
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本章译者：@freewind业务逻辑代码通常位于模型(model)层。客户端（比如浏览器）无法直接调用其中的代码，所以模型对象提供的功能，必须作为资源以URI方式暴露给外部。客户端使用HTTP协议来操作这些资源，从而调用了内部的业务逻辑。但是，这种从资源到模型之间的映射是单向的：我们可以根据需要提供... 阅读全文