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