ServletContextListener不会在部署时执行 [英] ServletContextListener does not execute on deployment

问题描述

当我部署war文件时，我正在尝试初始化流对象.

I am trying to initialize a streaming object when my war file is deployed.

我编写了一个实现ServletContextListener的Initializer类，并在我的web.xml中添加了一个侦听器类标记.问题是，当我向应用程序发出第一个请求时发生了ContextInitialized事件，而不是在部署应用程序时发生了.

I wrote an Initializer class that implements ServletContextListener and added a listener-class tag to my web.xml. The issue is that the ContextInitialized Event occurs when I make the first request to my application and NOT when the app is deployed.

是否有更好的方法来初始化我的应用程序?

Is there a better way to initialize my application?

public class Initializer implements ServletContextListener{

@Override
public void contextDestroyed(ServletContextEvent arg0) {
    System.out.println("Context Destroyed");

}

@Override
public void contextInitialized(ServletContextEvent arg0) {
    System.out.println("Context Initialized");
}

}

在web.xml中:

<listener>
    <listener-class>thepackage.Initializer</listener-class>
</listener>

找到了解决方案并将其发布在下面.

EDIT 2: Found the solution and posted below.

推荐答案

该问题特定于Websphere Liberty.

The problem is Websphere Liberty specific.

在Websphere Server的server.xml(〜/wlp/usr/servers/{server-name}/server.xml)中添加以下内容:

Add the following to the server.xml (~/wlp/usr/servers/{server-name}/server.xml) of your Websphere Server:

<webContainer deferServletLoad="false"/>

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