addnewsaction.java

使用J2EE Struts开发的房地产信息咨询系统

/**
 * 添加新的news的Action Bean
 * AddNewsAction.java
 * @author usr
 */

package building;

import java.sql.*;
import java.util.Vector;

import javax.sql.*;
import javax.servlet.http.*;
import javax.servlet.ServletContext;
import org.apache.struts.action.*;

public final class AddNewsAction extends Action
{
	public ActionForward execute(
			ActionMapping mapping,
			ActionForm form,
			HttpServletRequest request,
			HttpServletResponse response
			)
	throws Exception
	{
		DynaActionForm newsForm = (DynaActionForm)form;
		
		String title = (String)newsForm.get("title");
		String contents = (String)newsForm.get("contents");
		
		//CharSet
		title = CharSet.GBK_ISO(title);
		contents = CharSet.GBK_ISO(contents);
		//
		HttpSession session = request.getSession();
		Admin thisAdmin = (Admin)session.getAttribute(Constants.ADMIN_INFO_KEY);
		//
		News news = new News();
		
		news.setId(0);
		news.setAdderId(thisAdmin.getId());
		news.setTitle(title);
		news.setContents(contents);
		news.setAddTime(ChinaTime.getTime());
		
		//
		ServletContext context = servlet.getServletContext();
		DataSource dataSource = (DataSource)context.getAttribute(Constants.DATASOURCE_KEY);
		DB db = new DB(dataSource);
		//
		String PageForward = null;
		ActionMessages errors = new ActionMessages();
		
		if ( thisAdmin.getLev() != 1 )
		{
			//此用户无权限
			errors.add(ActionMessages.GLOBAL_MESSAGE,
					new ActionMessage("errors.adminNoRight2ADD"));
			if (!errors.isEmpty())
			{
				saveErrors(request,errors);
			}//End of if
			
			PageForward = "toWrong";
		}//End of if
		else
		{
			//此用户拥有权限
			if ( news.addNews(db) )
			{
				//添加成功
				PageForward = "toAddNewsOK";
			}//End of if
			else
			{
				//添加失败
				errors.add(ActionMessages.GLOBAL_MESSAGE,
						new ActionMessage("errors.addNewsFail"));
				if (!errors.isEmpty())
				{
					saveErrors(request,errors);
				}//End of if
				
				PageForward = "toWrong";
			}//End of else
		}//End of else
		
		//Close the Connection
		db.close();
		
		return(mapping.findForward(PageForward));
	}//End of execute
}//End of class AddNewsAction