1.忘记了好像前几篇没写BaseAction，这个Action的改进是为了节省开发的代码，将Action中公共的代码提取出来，系统各自的Action只需要继承BaseAction即可代码如下：

package com.icss.oa.base;

import java.lang.reflect.ParameterizedType;
import javax.annotation.Resource;
import com.icss.oa.domain.Department;
import com.icss.oa.domain.User;
import com.icss.oa.service.DepartmentService;
import com.icss.oa.service.RoleService;
import com.icss.oa.service.UserService;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

public class BaseAction<T> extends ActionSupport implements ModelDriven<T>  {
    
    @Resource
	protected RoleService roleService;
	@Resource
	protected  DepartmentService  departmentService ;
	@Resource
	protected  UserService userService ;
	
	protected T  model ;
	
	public  BaseAction() {
		ParameterizedType pt = (ParameterizedType) this.getClass().getGenericSuperclass();
		Class clazz = (Class) pt.getActualTypeArguments()[0];
		
		try {
			model = (T) clazz.newInstance();
		} catch (InstantiationException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IllegalAccessException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	public T getModel() {
		// TODO Auto-generated method stub
		return model;
	}
	
	
	
	  
	
}

需要将各个持久层实体的servcie层注入进来

OA项目之BaseAction