blocks|key|730048|text|@Inject可以注入任何bean，而@EJB只能注入EJB。您可以使用这两种方法中的任何一种来注入EJB，但我更喜欢到处使用@Inject。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|730049|entityMap^0|0|7|J|4|1R|7|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|O|8|@]|D|@]|E|$]]]|G|$]]

<code>@Inject</code> can inject any bean, while <code>@EJB</code> can only inject EJBs. You can use either to inject EJBs, but I'd prefer <code>@Inject</code> everywhere.

blocks|key|730230|text|@EJB只用于注入EJB，现在已经有很长一段时间了。@Inject可以注入任何托管bean，并且是新的CDI规范的一部分(从JavaEE6开始)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|730231|在简单的情况下，您可以简单地将@EJB更改为@Inject。在更高级的情况下(例如，当您严重依赖@EJB的属性，如beanName、lookup或beanInterface时)，为了使用@Inject，您需要定义一个@Producer字段或方法。|730232|这些资源可能有助于理解@EJB和@Produces之间的区别以及如何充分利用它们：|730233|安东尼奥·贡卡尔维斯的博客：|730234|CDI+Part+I|730235|CDI+Part+II|730236|CDI+Part+III|730237|JBoss焊接文档：|730238|CDI+and+the+Java+EE+ecosystem|730239|StackOverflow：|730240|Inject+@EJB+bean+based+on+conditions|730241|entityMap|0|LINK|mutability|MUTABLE|url|http://agoncal.wordpress.com/2011/04/07/injection-with-cdi-part-i/|1|http://agoncal.wordpress.com/2011/05/03/injection-with-cdi-part-ii/|2|http://agoncal.wordpress.com/2011/09/25/injection-with-cdi-part-iii/|3|http://docs.jboss.org/weld/reference/latest/en-US/html/part-4.html|4|https://stackoverflow.com/questions/7920123/inject-ejb-bean-based-on-conditions/7923159#7923159^0|0|4|Q|7|0|F|4|M|7|1C|4|1L|8|1U|6|21|D|2L|7|30|9|0|B|4|G|9|0|0|0|A|0|0|0|B|1|0|0|C|2|0|0|0|T|3|0|0|0|10|4|0^^$0|@$1|2|3|4|5|6|7|1F|8|@$9|1G|A|1H|B|C]|$9|1I|A|1J|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1K|8|@$9|1L|A|1M|B|C]|$9|1N|A|1O|B|C]|$9|1P|A|1Q|B|C]|$9|1R|A|1S|B|C]|$9|1T|A|1U|B|C]|$9|1V|A|1W|B|C]|$9|1X|A|1Y|B|C]|$9|1Z|A|20|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|21|8|@$9|22|A|23|B|C]|$9|24|A|25|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|26|8|@]|D|@]|E|$]]|$1|L|3|M|5|6|7|27|8|@]|D|@$9|28|A|29|1|2A]]|E|$]]|$1|N|3|O|5|6|7|2B|8|@]|D|@$9|2C|A|2D|1|2E]]|E|$]]|$1|P|3|Q|5|6|7|2F|8|@]|D|@$9|2G|A|2H|1|2I]]|E|$]]|$1|R|3|S|5|6|7|2J|8|@]|D|@]|E|$]]|$1|T|3|U|5|6|7|2K|8|@]|D|@$9|2L|A|2M|1|2N]]|E|$]]|$1|V|3|W|5|6|7|2O|8|@]|D|@]|E|$]]|$1|X|3|Y|5|6|7|2P|8|@]|D|@$9|2Q|A|2R|1|2S]]|E|$]]|$1|Z|3|-4|5|6|7|2T|8|@]|D|@]|E|$]]]|10|$11|$5|12|13|14|E|$15|16]]|17|$5|12|13|14|E|$15|18]]|19|$5|12|13|14|E|$15|1A]]|1B|$5|12|13|14|E|$15|1C]]|1D|$5|12|13|14|E|$15|1E]]]]

The <code>@EJB</code> is used to inject EJB's only and is available for quite some time now. <code>@Inject</code> can inject any managed bean and is a part of the new CDI specification (since Java EE 6).

In simple cases you can simply change <code>@EJB</code> to <code>@Inject</code>. In more advanced cases (e.g. when you heavily depend on <code>@EJB</code>'s attributes like <code>beanName</code>, <code>lookup</code> or <code>beanInterface</code>) than in order to use <code>@Inject</code> you would need to define a <code>@Producer</code> field or method.

These resources might be helpful to understand the differences between <code>@EJB</code> and <code>@Produces</code> and how to get the best of them:

Antonio Goncalves' blog: 
<a href="http://agoncal.wordpress.com/2011/04/07/injection-with-cdi-part-i/" rel="noreferrer">CDI Part I</a> 
<a href="http://agoncal.wordpress.com/2011/05/03/injection-with-cdi-part-ii/" rel="noreferrer">CDI Part II</a> 
<a href="http://agoncal.wordpress.com/2011/09/25/injection-with-cdi-part-iii/" rel="noreferrer">CDI Part III</a> 

JBoss Weld documentation: 
<a href="http://docs.jboss.org/weld/reference/latest/en-US/html/part-4.html" rel="noreferrer">CDI and the Java EE ecosystem</a>

StackOverflow: 
<a href="https://stackoverflow.com/questions/7920123/inject-ejb-bean-based-on-conditions/7923159#7923159">Inject @EJB bean based on conditions</a>

blocks|key|513893|text|例如，Java+EE+5中已经存在带有@Resource、@PersistentUnit或@EJB注释的注入。但它仅限于某些资源(数据源、EJB。。。)并集成到某些组件(Servlet、EJB、JSF支持bean。。.)。有了CDI，你几乎可以在任何地方注入任何东西，这要归功于@Inject注解。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|513894|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Injection already existed in Java EE 5 with the @Resource, @PersistentUnit or @EJB annotations, for example.
But it was limited to certain resources (datasource, EJB . . .) and into certain components (Servlets, EJBs, JSF backing
bean . . .). With CDI you can inject nearly anything anywhere thanks to the @Inject annotation.

blocks|key|730440|text|在使用@EJB和@Inject时，了解会话Bean身份方面的差异可能也很有用。根据规范，以下代码将始终为true|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|730441|@EJB+Cart+cart1;
@EJB+Cart+cart2;
…+if+(cart1.equals(cart2))+{+//+this+test+must+return+true+...}|code-block|syntax|javascript|730442|使用@Inject而不是@EJB是不一样的。|730443|另请参阅stateless+session+beans+identity以了解更多信息|730444|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/45460383/stateless-session-beans-identity-with-ejb-and-inject^0|1G|4|0|0|0|4|W|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|Z|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|10|8|@]|D|@]|E|$]]|$1|M|3|N|5|6|7|11|8|@]|D|@$9|12|A|13|1|14]]|E|$]]|$1|O|3|-4|5|6|7|15|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V]]]]

It may also be usefull to understand the difference in term of Session Bean Identity when using @EJB and @Inject.
According to the specifications the following code will always be <code>true</code>:

<pre><code>@EJB Cart cart1;
@EJB Cart cart2;
… if (cart1.equals(cart2)) { // this test must return true ...}
</code></pre>

Using @Inject instead of @EJB there is not the same.

see also <a href="https://stackoverflow.com/questions/45460383/stateless-session-beans-identity-with-ejb-and-inject">stateless session beans identity</a> for further info

blocks|key|730515|text|将@EBJ与EJB一起使用。这用于创建独立于接口类型(分层应用程序)的独立业务逻辑层。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|730516|这(正确使用)允许业务逻辑与(多个)用户界面应用程序分开修改和部署，而不会丢失可用性。|730517|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

use @EBJ with EJB's. This is for creating a separated business logic layer that is independent of the types of interfaces (Tiered Applications).
This (used correctly) allows the business logic to be modified and deployed separately from the (multiple) user-interface applications without loss of availability.

I have found this question: <a href="https://stackoverflow.com/questions/5889767/what-is-the-difference-between-inject-and-ejb">What is the difference between @Inject and @EJB</a> but I did not get any wiser. I have not done Java EE before nor do I have experience with dependency injection so I do not understand what I should use?
Is <code>@EJB</code> an old way of injecting? Is the injection done by the EJB container when using this annotation while using <code>@Inject</code> use the new CDI framework? Is that the difference and should I be using <code>@Inject</code> instead of <code>@EJB</code> if this is the case?

Should I use @EJB or @Inject

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Java

我发现了这个问题：，但我并没有变得更聪明。我以前没有做过Java EE，也没有依赖注入的经验，所以我不知道我应该使用什么？@EJB是一种古老的注入方式吗？在使用新的@Inject框架的同时使用此注释时，注入是由EJB容器完成的吗？这就是区别吗?如果是这样的话，我应该使用@Inject而不是@EJB吗？

问我应该使用@EJB还是@Inject
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