如何得到application context

最新推荐文章于 2024-11-14 16:32:38 发布

原创最新推荐文章于 2024-11-14 16:32:38 发布 · 2.1k 阅读

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#application #import #servlet #action #class

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本文介绍了一个将Struts与Spring框架集成的例子，通过web.xml配置和SystemAction类实现Spring管理业务服务。

web.xml配置如下：

代码:

.....
<context-param>
   <param-name>contextConfigLocation</param-name>
   <param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>

<servlet>
   <servlet-name>SpringContextServlet</servlet-name>
   <servlet-class>org.springframework.web.context.ContextLoaderServlet</servlet-class>
   <load-on-startup>1</load-on-startup>
</servlet>
.....

SystemAction.java代码如下：

代码:

import javax.servlet.ServletContext;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionServlet;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

import com.sse.ofmis.service.ISystemService;

public abstract class SystemAction extends Action {

private ISystemService systemService;

public void setServlet(ActionServlet actionServlet) {
super.setServlet(actionServlet);
ServletContext servletContext = actionServlet.getServletContext();
WebApplicationContext wac =
WebApplicationContextUtils.getRequiredWebApplicationContext(servletContext);
this.systemService = (ISystemService) wac.getBean("mySystemService");
}

protected ISystemService getSystemService() {
return systemService;
}

}