服务器启动时 Glassfish 4.1invoke 方法？

Question

我正在使用 Glassfish 4.1 部署一个使用 jersey 2.23.2 的 RESTful webapp。

我想做的是运行服务器启动时的方法

我的web.xml

<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
    <display-name>XYZ</display-name>
    <servlet>
      <servlet-name>MyApplication</servlet-name>
      <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
      <init-param>
          <param-name>javax.ws.rs.Application</param-name>
          <param-value>MyApplication</param-value>
      </init-param>
    </servlet>
    <servlet-mapping>
        <servlet-name>MyApplication</servlet-name>
        <url-pattern>/*</url-pattern>
    </servlet-mapping>

</web-app>

和MyApplication.java

import javax.annotation.PostConstruct;
import org.glassfish.jersey.server.ResourceConfig;

public class MyApplication extends ResourceConfig {
    public MyApplication() {
        packages("services");
    }

    @PostConstruct
    public void post_construct () {
        //The method I want to run
    }
}

Answer 1

我猜你的解决方案不起作用，因为你的 class 不是由容器管理的，因此 @PostConstruct 没有得到评估。

您可以尝试以下方法：

import javax.annotation.PostConstruct;
import org.glassfish.jersey.server.ResourceConfig;

public class MyApplication extends ResourceConfig {
    public MyApplication() {
        packages("services");
        post_construct();   // <-- here is the call
    }

    @PostConstruct
    public void post_construct () {
        //The method I want to run
    }
}

如果这不起作用这里是 "real" 解决方案：

@Singleton
@Startup
public class InitializerBean {

   @PostConstruct
   public void onStartup() {
        // do your method-call here
   }

}

另请参阅：

The Lifecycles of Enterprise Beans
Seven ways to get things started. Java EE Startup Classes with GlassFish and WebLogic
@Singleton, @Startup, @PostConstruct doesn't work on EJB3.1 and Glassfishv3.0.1

服务器启动时 Glassfish 4.1invoke 方法？

Glassfish 4.1invoke method on the server's startup?

java

glassfish

jersey

jersey-2.0

glassfish-4.1