booktype.java~5~

图书馆管理系统 第1章 系统简介 图书馆是各大高等院校的重要组成部门

package com.action;

import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionForm;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForward;
import com.actionForm.BookTypeForm;
import org.apache.struts.action.Action;
import com.dao.BookTypeDAO;

public class BookType extends Action {
    private BookTypeDAO bookTypeDAO = null;
    public BookType() {
        this.bookTypeDAO = new BookTypeDAO();
    }
    public ActionForward perform(ActionMapping mapping, ActionForm form,
                                 HttpServletRequest request,
                                 HttpServletResponse response) {

        String action =request.getParameter("action");
        System.out.println("\nbookType*********************action="+action);
        if(action==null||"".equals(action)){
            request.setAttribute("error","您的操作有误！");
            return mapping.findForward("error");
        }else if("bookTypeAdd".equals(action)){
            return bookTypeAdd(mapping,form,request,response);
        }else if("bookTypeQuery".equals(action)){
            return bookTypeQuery(mapping,form,request,response);
        }else if("bookTypeModifyQuery".equals(action)){
            return bookTypeModifyQuery(mapping,form,request,response);
        }else if("bookTypeModify".equals(action)){
            return bookTypeModify(mapping,form,request,response);
        }else if("bookTypeDel".equals(action)){
            return bookTypeDel(mapping,form,request,response);
        }
        request.setAttribute("error","操作失败！");
        return mapping.findForward("error");
    }
    /***********************添加图书类型信息**************************/
       private ActionForward bookTypeAdd(ActionMapping actionMapping, ActionForm actionForm, HttpServletRequest servletRequest, HttpServletResponse servletResponse){
           BookTypeForm bookTypeForm = (BookTypeForm) actionForm;
           System.out.println("servlet:"+bookTypeForm.getTypeName());
           bookTypeForm.setTypeName(bookTypeForm.getTypeName());
           int a=bookTypeDAO.insert(bookTypeForm);
           if(a==0){
               servletRequest.setAttribute("error","图书类型信息添加失败！");
               return actionMapping.findForward("error");
         }else if(a==2){
             servletRequest.setAttribute("error","该图书类型信息已经添加！");
             return actionMapping.findForward("error");
         }else{
             return actionMapping.findForward("bookTypeAdd");
        }
       }
       /***********************查询全部图书类型信息**************************/
       private ActionForward bookTypeQuery(ActionMapping actionMapping,ActionForm actionForm,HttpServletRequest servletRequest,HttpServletResponse servletResponse){
       String str=null;
       servletRequest.setAttribute("bookTypeQueryif",bookTypeDAO.query(str));
       return actionMapping.findForward("bookTypeQuery");
       }
        /***********************查询修改图书类型信息**************************/
        private ActionForward bookTypeModifyQuery(ActionMapping actionMapping,ActionForm actionForm,HttpServletRequest servletRequest,HttpServletResponse servletResponse){
            BookTypeForm bookTypeForm=(BookTypeForm)actionForm;
            bookTypeForm.setId(Integer.valueOf(servletRequest.getParameter("ID")));
            servletRequest.setAttribute("bookTypeQueryif",bookTypeDAO.queryM(bookTypeForm));
            return actionMapping.findForward("bookTypeQueryModify");
        }
        /***********************修改图书类型信息**************************/
        private ActionForward bookTypeModify(ActionMapping actionMapping,ActionForm actionForm,HttpServletRequest servletRequest,HttpServletResponse servletResponse){
            BookTypeForm bookTypeForm=(BookTypeForm)actionForm;
            bookTypeForm.setTypeName(bookTypeForm.getTypeName());
            bookTypeForm.setDays(bookTypeForm.getDays());
            int ret=bookTypeDAO.update(bookTypeForm);
            if(ret==0){
                servletRequest.setAttribute("error","修改图书类型信息失败！");
                return actionMapping.findForward("error");
            }else{
                return actionMapping.findForward("bookTypeModify");
            }
        }
        /***********************删除图书类型信息**************************/
        private ActionForward bookTypeDel(ActionMapping actionMapping,ActionForm actionForm,HttpServletRequest servletRequest,HttpServletResponse servletResponse){
            BookTypeForm bookTypeForm=(BookTypeForm)actionForm;
            bookTypeForm.setId(Integer.valueOf(servletRequest.getParameter("ID")));
            int ret=bookTypeDAO.delete(bookTypeForm);
            if(ret==0){
                servletRequest.setAttribute("error","删除图书类型信息失败！");
                return actionMapping.findForward("error");
            }else{
                return actionMapping.findForward("bookTypeDel");
            }
        }
}