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;
    }
}