addressbookaction.java

用struts开发的addressbook系统

package addressbook.action;

import javax.servlet.*;
import javax.servlet.http.*;
import org.apache.struts.action.*;
import org.apache.struts.actions.DispatchAction;
import addressbook.db.*;
import addressbook.bean.*;

/**
 * @version 2007-3-14
 * @author Xiaofei 
 */
public class AddressBookAction extends DispatchAction {	
	//浏览记录
	protected ActionForward unspecified(
        ActionMapping mapping,
        ActionForm form,
        HttpServletRequest request,
        HttpServletResponse response)
        	throws Exception {
		String target = "view";				
		PageBean pageBean = new PageBean();			
		int page = 1;
		try{
			page = Integer.parseInt(request.getParameter("jumpPage"));
		}catch(NumberFormatException nfe){}
		pageBean.setCurPage(page);
		new RecordDAO().query(pageBean,"");
		request.setAttribute("pageBean",pageBean);		
		return mapping.findForward(target);
	}
	//查询记录
	public ActionForward select(
        ActionMapping mapping,
        ActionForm form,
        HttpServletRequest request,
        HttpServletResponse response)
        	throws Exception {
		String target = "select";		
		PageBean pageBean = new PageBean();			
		int page = 1;
		try{
			page = Integer.parseInt(request.getParameter("jumpPage"));
		}catch(NumberFormatException nfe){}
		pageBean.setCurPage(page);			
		//构造查询条件
		String conditions;
		String keyword = request.getParameter("keyword");
		if((keyword!=null)&&(!keyword.trim().equals(""))){
			String field = request.getParameter("field");
			conditions = " where "+field+" like '%"+keyword.trim()+"%' ";
		}else{
			conditions = "";
		}
		new RecordDAO().query(pageBean,conditions);
		if(pageBean.getData().size()>0){
			request.setAttribute("haveRecords",Boolean.TRUE);
			request.setAttribute("pageBean",pageBean);
		}else{
			request.setAttribute("haveRecords",Boolean.FALSE);
		}
		return mapping.findForward(target);
	}
	//添加记录
	public ActionForward append(
        ActionMapping mapping,
        ActionForm form,
        HttpServletRequest request,
        HttpServletResponse response)
        	throws Exception {
		String target = "prompt";		
		Record record = (Record)form;
		new RecordDAO().append(record);
		request.setAttribute("actionOk",record.getName()+" 添加成功");		
		return mapping.findForward(target);
	}
	//删除记录
	public ActionForward delete(
        ActionMapping mapping,
        ActionForm form,
        HttpServletRequest request,
        HttpServletResponse response)
        	throws Exception {
		String target = "prompt";
		int id = Integer.parseInt(request.getParameter("id"));
		new RecordDAO().delete(id);
		request.setAttribute("actionOk","记录删除成功");		
		return mapping.findForward(target);
	}
	//准备编辑
	public ActionForward edit(
        ActionMapping mapping,
        ActionForm form,
        HttpServletRequest request,
        HttpServletResponse response)
        	throws Exception {
		String target = "edit";
		int id = Integer.parseInt(request.getParameter("id"));
		request.setAttribute("record",new RecordDAO().getRecordById(id));
		return mapping.findForward(target);
	}
	//更改记录
	public ActionForward update(
        ActionMapping mapping,
        ActionForm form,
        HttpServletRequest request,
        HttpServletResponse response)
        	throws Exception {
		String target = "prompt";
		Record record = (Record)form;
		new RecordDAO().update(record);
		request.setAttribute("actionOk",record.getName()+" 修改成功");
		return mapping.findForward(target);
	}
	
}