abstractaction.java

本源码为教学管理信息系统

package com.hibernate.action;

import java.io.ByteArrayOutputStream;
import java.util.Map;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.web.context.WebApplicationContext;
import com.opensymphony.webwork.ServletActionContext;
import com.opensymphony.xwork.ActionContext;
import com.opensymphony.xwork.ActionSupport;
import com.wygl.dbdao.DbDao;
import com.wygl.session.SessionInfo;
import com.wygl.xtgl.domain.Department;
import com.wygl.xtgl.domain.User;


/**
 * Superclass for Hibernate-aware actions. Demonstrates the use of an XWork IoC
 * component in an Action.
 * 
 * @see org.hibernate.component.HibernateSession
 * @author Gavin King
 * @author Christian Bauer <[e-mail]>
 */
public abstract class AbstractAction extends ActionSupport {
	private static final Log LOG = LogFactory.getLog(AbstractAction.class);
	/**
	 * Excel打印输出流
	 */
	protected ByteArrayOutputStream exportExcel = new ByteArrayOutputStream();
	/**
	 * 程序入口编号
	 */
	protected String progID;
	/**
	 * 导航信息
	 */
	protected String navigation;	
	/**
	 * 数据库操作服务
	 */
	protected DbDao dbDao;	
	
	/**
	 * 初始化服务  
	 */
	protected void initDbDao() {
		if(dbDao == null){
			ApplicationContext ctx = (ApplicationContext) ActionContext.getContext().getApplication().get(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);
			dbDao = (DbDao) ctx.getBean("dbDao");
		}
	}
	/**
	 * 针对模型驱动的action，进行查询条件初始化
	 * @throws Exception
	 */
	protected void initModel() throws Exception{
		
	}
	/**
	 * 获得导航信息
	 * @return
	 * @throws Exception
	 */
	protected void getSysNavigation() throws Exception{		
		progID = ServletActionContext.getRequest().getParameter("ProgID");
		if(progID == null || progID.equals("")){
			progID = (String) get("HwjProgID");		
			set("IsPortal","0");
		}else{
			set("HwjProgID",progID);
			set("IsPortal","1");
			try {
				initModel();
			} catch (Exception e) {
				e.printStackTrace();
				throw new Exception("初始化模型错误!");
			}
		}	
	
		try {		
			initDbDao();
			String tmpProgID = progID;
			navigation = "";
			if(progID == null || progID.equals("")){
			}else{
				do{
					HICProgrameDef hICProgrameDef = (HICProgrameDef)dbDao.queryObjectById(HICProgrameDef.class,tmpProgID);
					if(navigation == null || navigation.equals("")){
						navigation = hICProgrameDef.getProgramCaption();
					}else{
						navigation = hICProgrameDef.getProgramCaption() + ">>" + navigation;
					}
					if(hICProgrameDef.getProgramParent() == null || hICProgrameDef.getProgramParent().equals("")){
						tmpProgID = "";
					}else{
						tmpProgID = hICProgrameDef.getProgramParent();
					}
				}while(!tmpProgID.equals(""));	
			}
		} catch (Exception e) {
			e.printStackTrace();
			throw new Exception("获取导航信息错误!");
		}
	}
	
	/**
	 * @return java.lang.Strings
	 * @throws java.lang.Exception
	 * @roseuid 431F92DB001D
	 */
	public String execute() throws Exception {
		if ( hasErrors() ) {
			LOG.debug("action not executed, field or action errors");
			LOG.debug( "Field errors: " + getFieldErrors() );
			LOG.debug( "Action errors: " + getActionErrors() );
			return INPUT;
		}

		LOG.debug("executing action");
		return SUCCESS;
	}
	
	/**
	 * 获得服务
	 * @return Object
	 */
	protected Object getServiceBean(String beanName){
		try {
			getSysNavigation();
		} catch (Exception e) {			
		}
		ApplicationContext ctx = (ApplicationContext) ActionContext.getContext().getApplication().get(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);
		return ctx.getBean(beanName);
	}

	/**
	 * Get an object from the WebWork user session
	 * 
	 * @param name
	 * @return java.lang.Object
	 * @roseuid 431F92DB00BD
	 */
	protected Object get(String name) {
		return ActionContext.getContext().getSession().get(name);
	}

	/**
	 * Put an object in the WebWork user session
	 * 
	 * @param name
	 * @param value
	 * @roseuid 431F92DB00D1
	 */
	protected void set(String name, Object value) {
		ActionContext.getContext().getSession().put(name, value);		
	}
	
	/**
	 * Remove an object in the WebWork user session
	 * 
	 * @param key
	 * @roseuid 431F92DB00D2
	 */
	protected void remove(Object key) {
		ActionContext.getContext().getSession().remove(key);		
	}
	/**
	 * 获得登陆用户信息
	 * @return SessionInfo
	 */
	protected SessionInfo getSessionInfo(){
		SessionInfo sessionInfo = new SessionInfo();
		Map session = (Map)ActionContext.getContext().getSession();
		User user=(User) session.get("currentUser");
		Department depa = (Department)user.getEmployee().getDepartment();
		sessionInfo.setUserLoginId((String)session.get("LoginID"));
		sessionInfo.setUserId(user.getEmployee().getEmployeeId());
		sessionInfo.setUserName(user.getEmployee().getName());
		sessionInfo.setUserDescription((String)session.get("UserDesc"));
		sessionInfo.setRoleId((String)session.get("RoleID"));
		sessionInfo.setRoleName((String)session.get("RoleName"));
		sessionInfo.setDeptId(depa.getDwdm());	
		sessionInfo.setYgdm(user.getEmployee().getYgdm());
		sessionInfo.setDeptName(depa.getDwmc());
		
		return sessionInfo;
	}
	
	public ByteArrayOutputStream getExportExcel() {
		return exportExcel;
	}

	public void setExportExcel(ByteArrayOutputStream exportExcel) {
		this.exportExcel = exportExcel;
	}
	
	public String getProgID() {
		return progID;
	}

	public void setProgID(String progID) {
		this.progID = progID;
	}

	public String getNavigation() {
		return navigation;
	}

	public void setNavigation(String navigation) {
		this.navigation = navigation;
	}
	
}