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BookType.java
资源名称：Library.rar　[点击查看]
上传用户：ycdfsj258
上传日期：2022-08-04
资源大小：1094k
文件大小：5k
源码类别：

图形图象

开发平台：

Java

BookType.java：源码内容
  1. package com.action;
  3. import org.apache.struts.action.ActionMapping;
  4. import org.apache.struts.action.ActionForm;
  5. import javax.servlet.http.HttpServletRequest;
  6. import javax.servlet.http.HttpServletResponse;
  7. import org.apache.struts.action.ActionForward;
  8. import com.actionForm.BookTypeForm;
  9. import org.apache.struts.action.Action;
  10. import com.dao.BookTypeDAO;
  12. public class BookType extends Action {
  13.     private BookTypeDAO bookTypeDAO = null;
  14.     public BookType() {
  15.         this.bookTypeDAO = new BookTypeDAO();
  16.     }
  17.     public ActionForward perform(ActionMapping mapping, ActionForm form,
  18.                                  HttpServletRequest request,
  19.                                  HttpServletResponse response) {
  21.         String action =request.getParameter("action");
  22.         System.out.println("nbookType*********************action="+action);
  23.         if(action==null||"".equals(action)){
  24.             request.setAttribute("error","您的操作有误！");
  25.             return mapping.findForward("error");
  26.         }else if("bookTypeAdd".equals(action)){
  27.             return bookTypeAdd(mapping,form,request,response);
  28.         }else if("bookTypeQuery".equals(action)){
  29.             return bookTypeQuery(mapping,form,request,response);
  30.         }else if("bookTypeModifyQuery".equals(action)){
  31.             return bookTypeModifyQuery(mapping,form,request,response);
  32.         }else if("bookTypeModify".equals(action)){
  33.             return bookTypeModify(mapping,form,request,response);
  34.         }else if("bookTypeDel".equals(action)){
  35.             return bookTypeDel(mapping,form,request,response);
  36.         }
  37.         request.setAttribute("error","操作失败！");
  38.         return mapping.findForward("error");
  39.     }
  40.     /***********************添加图书类型信息**************************/
  41.     private ActionForward bookTypeAdd(ActionMapping mapping, ActionForm form,
  42.                            HttpServletRequest request,
  43.                            HttpServletResponse response){
  44.            BookTypeForm bookTypeForm = (BookTypeForm) form;
  45.            System.out.println("servlet:"+bookTypeForm.getTypeName());
  46.            bookTypeForm.setTypeName(bookTypeForm.getTypeName());
  47.            int a=bookTypeDAO.insert(bookTypeForm);
  48.            if(a==0){
  49.                request.setAttribute("error","图书类型信息添加失败！");
  50.                return mapping.findForward("error");
  51.          }else if(a==2){
  52.              request.setAttribute("error","该图书类型信息已经添加！");
  53.              return mapping.findForward("error");
  54.          }else{
  55.              return mapping.findForward("bookTypeAdd");
  56.         }
  57.        }
  58.        /***********************查询全部图书类型信息**************************/
  59.        private ActionForward bookTypeQuery(ActionMapping mapping, ActionForm form,
  60.                               HttpServletRequest request,
  61.                               HttpServletResponse response){
  62.        String str=null;
  63.        request.setAttribute("bookType",bookTypeDAO.query(str));
  64.        return mapping.findForward("bookTypeQuery");
  65.        }
  66.         /***********************查询修改图书类型信息**************************/
  67.         private ActionForward bookTypeModifyQuery(ActionMapping mapping, ActionForm form,
  68.                               HttpServletRequest request,
  69.                               HttpServletResponse response){
  70.             BookTypeForm bookTypeForm=(BookTypeForm)form;
  71.             bookTypeForm.setId(Integer.valueOf(request.getParameter("ID")));
  72.             request.setAttribute("bookTypeQueryif",bookTypeDAO.queryM(bookTypeForm));
  73.             return mapping.findForward("bookTypeQueryModify");
  74.         }
  75.         /***********************修改图书类型信息**************************/
  76.         private ActionForward bookTypeModify(ActionMapping mapping, ActionForm form,
  77.                               HttpServletRequest request,
  78.                               HttpServletResponse response){
  79.             BookTypeForm bookTypeForm=(BookTypeForm)form;
  80.             bookTypeForm.setTypeName(bookTypeForm.getTypeName());
  81.             bookTypeForm.setDays(bookTypeForm.getDays());
  82.             int ret=bookTypeDAO.update(bookTypeForm);
  83.             if(ret==0){
  84.                 request.setAttribute("error","修改图书类型信息失败！");
  85.                 return mapping.findForward("error");
  86.             }else{
  87.                 return mapping.findForward("bookTypeModify");
  88.             }
  89.         }
  90.         /***********************删除图书类型信息**************************/
  91.         private ActionForward bookTypeDel(ActionMapping mapping, ActionForm form,
  92.                               HttpServletRequest request,
  93.                               HttpServletResponse response){
  94.             BookTypeForm bookTypeForm=(BookTypeForm)form;
  95.             bookTypeForm.setId(Integer.valueOf(request.getParameter("ID")));
  96.             int ret=bookTypeDAO.delete(bookTypeForm);
  97.             if(ret==0){
  98.                 request.setAttribute("error","删除图书类型信息失败！");
  99.                 return mapping.findForward("error");
  100.             }else{
  101.                 return mapping.findForward("bookTypeDel");
  102.             }
  103.         }
  104. }