Jsp/Servlet

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Java

BookCase.java~4~：源码内容
							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.BookCaseForm;
import org.apache.struts.action.Action;
import com.dao.BookCaseDAO;
public class BookCase extends Action {
    private BookCaseDAO bookCaseDAO=null;
    public BookCase(){
        this.bookCaseDAO=new BookCaseDAO();
    }
    public ActionForward perform(ActionMapping mapping, ActionForm form,
                                 HttpServletRequest request,
                                 HttpServletResponse response) {
    String action =request.getParameter("action");
    System.out.println("nbookCase*********************action="+action);
    if(action==null||"".equals(action)){
        return mapping.findForward("error");
    }else if("bookCaseAdd".equals(action)){
        return bookCaseAdd(mapping,form,request,response);
    }else if("bookCaseQuery".equals(action)){
        return bookCaseQuery(mapping,form,request,response);
    }else if("bookCaseModifyQuery".equals(action)){
        return bookCaseModifyQuery(mapping,form,request,response);
    }else if("bookCaseModify".equals(action)){
        return bookCaseModify(mapping,form,request,response);
    }else if("bookCaseDel".equals(action)){
        return bookCaseDel(mapping,form,request,response);
    }
        return mapping.findForward("error");
    }
 /***********************添加书架信息**************************/
 private ActionForward bookCaseAdd(ActionMapping mapping, ActionForm form,
                              HttpServletRequest request,
                              HttpServletResponse response
){
        BookCaseForm bookCaseForm = (BookCaseForm) form;
        System.out.println("servlet:"+request.getParameter("name"));
        bookCaseForm.setName(bookCaseForm.getName());
        int a=bookCaseDAO.insert(bookCaseForm);
        if(a==0){
            request.setAttribute("error","书架信息添加失败！");
            return mapping.findForward("error");
      }else if(a==2){
          request.setAttribute("error","该书架信息已经添加！");
          return mapping.findForward("error");
      }else{
          return mapping.findForward("bookcaseAdd");
     }
    }
    /***********************查询全部书架信息**************************/
    private ActionForward bookCaseQuery(ActionMapping actionMapping,ActionForm actionForm,HttpServletRequest servletRequest,HttpServletResponse servletResponse){
    String str=null;
    servletRequest.setAttribute("bookcase",bookCaseDAO.query(str));
    return actionMapping.findForward("bookcaseQuery");
    }
     /***********************查询修改书架信息**************************/
     private ActionForward bookCaseModifyQuery(ActionMapping actionMapping,ActionForm actionForm,HttpServletRequest servletRequest,HttpServletResponse servletResponse){
         BookCaseForm bookCaseForm=(BookCaseForm)actionForm;
         bookCaseForm.setId(Integer.valueOf(servletRequest.getParameter("ID")));
         servletRequest.setAttribute("bookCaseQueryif",bookCaseDAO.queryM(bookCaseForm));
         return actionMapping.findForward("bookCaseQueryModify");
     }
     /***********************修改书架信息**************************/
     private ActionForward bookCaseModify(ActionMapping actionMapping,ActionForm actionForm,HttpServletRequest servletRequest,HttpServletResponse servletResponse){
         BookCaseForm bookCaseForm=(BookCaseForm)actionForm;
         bookCaseForm.setName(servletRequest.getParameter("name"));
         int ret=bookCaseDAO.update(bookCaseForm);
         if(ret==0){
             return actionMapping.findForward("error");
         }else{
             return actionMapping.findForward("bookCaseModify");
         }
     }
     /***********************删除书架信息**************************/
     private ActionForward bookCaseDel(ActionMapping actionMapping,ActionForm actionForm,HttpServletRequest servletRequest,HttpServletResponse servletResponse){
         BookCaseForm bookCaseForm=(BookCaseForm)actionForm;
         bookCaseForm.setId(Integer.valueOf(servletRequest.getParameter("ID")));
         int ret=bookCaseDAO.delete(bookCaseForm);
         if(ret==0){
             return actionMapping.findForward("error");
         }else{
             return actionMapping.findForward("bookCaseDel");
         }
     }
}

						