抽取BaseAction基类代码,Java代码库,德仔网

代码语言
代码分类
【Java】抽取BaseAction基类
作者:ym80 / 发布于2015/4/8/ 568

	BaseAction

	import java.lang.reflect.ParameterizedType;
	import java.lang.reflect.Type;
	
	import javax.annotation.Resource;
	
	import cn.jfree.oa.service.IBookService;
	
	import com.opensymphony.xwork2.ActionSupport;
	import com.opensymphony.xwork2.ModelDriven;
	
	/**
	* 通用Action
	*
	*
	*/
	public class BaseAction<T> extends ActionSupport implements ModelDriven<T> {
	 @Resource
	 protected IBookService bookService;
	
	 protected T model;
	
	 public BaseAction() {
	 ParameterizedType type = (ParameterizedType) this.getClass().getGenericSuperclass();
	 Type[] types = type.getActualTypeArguments();
	 Class<T> clazz = (Class<T>) types[0];
	 try {
	 model = clazz.newInstance();
	 } catch (InstantiationException e) {
	 e.printStackTrace();
	 } catch (IllegalAccessException e) {
	 e.printStackTrace();
	 }
	 }
	 public T getModel() {
	 return model;
	 }
	
	}

	

	

	

	在BaseAction中注入,在*ActionImpl中实现

	import cn.jfree.oa.service.user.UserService;
	
	import com.opensymphony.xwork2.ActionSupport;
	
	/**
	* 实现表现层 重复代码复用
	*
	*
	*
	*/
	public abstract class BaseAction extends ActionSupport {
	 // 注入Service
	 protected UserService userService;
	
	 public void setUserService(UserService userService) {
	 this.userService = userService;
	 }
	
	}
	/**************************************************/
	/**************************************************/
	import org.apache.struts2.ServletActionContext;
	
	import cn.jfree.oa.domain.user.User;
	import cn.jfree.oa.web.action.base.BaseAction;
	
	import com.opensymphony.xwork2.ModelDriven;
	
	/**
	* 实现用户登陆
	*
	*/
	public class LoginAction extends BaseAction implements ModelDriven<User> {
	
	 // 模型驱动
	 private User user = new User();
	
	 @Override
	 public User getModel() {
	 return user;
	 }
	}

	

	

	构造器注入String类型的className

	/**
	* 公共Action
	*
	*
	*/
	public class BaseAction extends ActionSupport implements ModelDriven {
	
	 // 完成模型驱动
	 protected Object model;
	
	 public Object getModel() {
	 return model;
	 }
	
	 // 注入Service
	 @Autowired
	 @Qualifier("userService")
	 protected UserService userService;
	
	 // 简化Servlet API
	 protected HttpServletRequest getRequest() {
	 return ServletActionContext.getRequest();
	 }
	
	 protected HttpSession getSession() {
	 return ServletActionContext.getRequest().getSession();
	 }
	}
	/*****************************************/
	/*****************************************/
	/**
	* 登陆 请求处理
	*
	*
	*/
	public class LoginAction extends BaseAction {
	 public LoginAction(String modelClassName) {
	 try {
	 model = Class.forName(modelClassName).newInstance();
	 } catch (Exception e) {
	 e.printStackTrace();
	 }
	 }
	
	}
	
	与1类型,不过每个子类都创建构造器,太麻烦
试试其它关键字
　BaseAction　　基类　
同语言下
可能有用的
ym80贡献的其它代码(7)