Mailer插件抛出NullPointerException [英] Mailer plugin throws NullPointerException

问题描述

当我尝试使用Mailer插件(2.1-SNAPSHOT版本)时，如

When I try to use the Mailer Plugin (version 2.1-SNAPSHOT) as explained here everything seems fine, meaning all dependencies are resolved and there are no compilation errors.

无论何时执行此代码

MailerAPI mail = play.Play.application().plugin(MailerPlugin.class).email();

我在这行上得到一个NullPointerException.因为对plugin的调用返回null，所以产生了异常.

I get a NullPointerException on this line. The exception is generated because the call to plugin returns null.

关于这里发生什么的任何提示?

Any hints on what is going on here?

我正在使用Play 2.1-RC2，该应用程序是用Java编写的.

I'm using Play 2.1-RC2 and the app is written in Java.

推荐答案

如注释中所述，请检查是否已将1500:com.typesafe.plugin.CommonsMailerPlugin添加到conf/play.plugins中，以便按照文档.

As explained in the comments, please check that you add 1500:com.typesafe.plugin.CommonsMailerPlugin to your conf/play.plugins in order to register the plugin as explained in the documentation.

我认为Play应该抛出明确的消息，而不是NullPointerException.

I think that Play should throw an explicit message instead of a NullPointerException.

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