struts2实现装配接口工具类

在struts2中,我们需要在Action类中对request,session,response,application等服务器对象进行操作,我们只需实现相应的的接口,struts2拦截器执行过程中,会检查Action类是否实现接口.如果实现就会给这些服务器对象自动赋值.我们在Action类中就可以直接使用.

 import java.util.Map; import javax.servlet.ServletContext;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpSession; import org.apache.struts2.interceptor.ApplicationAware;import org.apache.struts2.interceptor.ParameterAware;import org.apache.struts2.interceptor.RequestAware;import org.apache.struts2.interceptor.ServletRequestAware;import org.apache.struts2.interceptor.ServletResponseAware;import org.apache.struts2.interceptor.SessionAware;import org.apache.struts2.util.ServletContextAware; import com.opensymphony.xwork2.ActionSupport; public class BaseAction extends ActionSupport implements        ServletRequestAware,                 ServletResponseAware,         ApplicationAware,         RequestAware,                 SessionAware,                 ServletContextAware,                 ParameterAware {         private static final long serialVersionUID = -7525878943091775598L;            /**     * ServletContextAware               ServletContext   application     *     * ServletRequestAware               HttpServletRequest request     *     * ServletResponseAware              HttpServletResponse response     *     * ParameterAware                    Map parameterMap     *     * RequestAware                     Map requestMap                              *     * SessionAware                     Map sessionMap      *     * ApplicationAware                 Map applicationMap     */         protected HttpServletRequest request;    protected HttpServletResponse response;    protected HttpSession session;    protected ServletContext application;     protected Map<String, Object> requestMap;    protected Map<String, Object> sessionMap;    protected Map<String, Object> applicationMap;    protected Map<String, String[]> parameterMap;     public void setRequest(Map<String, Object> arg0) {        this.requestMap = arg0;    }     public void setSession(Map<String, Object> arg0) {        this.sessionMap = arg0;    }     public void setServletContext(ServletContext arg0) {        this.application = arg0;    }     public void setParameters(Map<String, String[]> arg0) {        this.parameterMap = arg0;    }     public void setServletRequest(HttpServletRequest arg0) {        this.request = arg0;        this.session = request.getSession();    }     public void setServletResponse(HttpServletResponse arg0) {        this.response = arg0;    }     public void setApplication(Map<String, Object> arg0) {        this.applicationMap = arg0;    }}