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package com.action;

import java.io.IOException;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import com.actionForm.BookCaseForm;

import com.dao.BookCaseDAO;

public class BookCase extends HttpServlet {

private BookCaseDAO bookCaseDAO=null;

public BookCase(){

this.bookCaseDAO=new BookCaseDAO();

}

public void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

String action =request.getParameter("action");

System.out.println("\nbookCase*********************action="+action);

if(action==null||"".equals(action)){

request.getRequestDispatcher("error.jsp").forward(request, response);

}else if("bookCaseAdd".equals(action)){

bookCaseAdd(request,response);

}else if("bookCaseQuery".equals(action)){

bookCaseQuery(request,response);

}else if("bookCaseModifyQuery".equals(action)){

bookCaseModifyQuery(request,response);

}else if("bookCaseModify".equals(action)){

bookCaseModify(request,response);

}else if("bookCaseDel".equals(action)){

bookCaseDel(request,response);

}

}

/***********************添加书架信息**************************/

private void bookCaseAdd(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

BookCaseForm bookCaseForm=new BookCaseForm();

bookCaseForm.setName(request.getParameter("name"));

int a=bookCaseDAO.insert(bookCaseForm);

if(a==0){

request.setAttribute("error","书架信息添加失败！");

request.getRequestDispatcher("error.jsp").forward(request, response);

}else if(a==2){

request.setAttribute("error","该书架信息已经添加！");

request.getRequestDispatcher("error.jsp").forward(request, response);

}else{

request.getRequestDispatcher("bookcase_ok.jsp?para=1").forward(request, response);

}

}

/***********************查询全部书架信息**************************/

private void bookCaseQuery(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

String str=null;

request.setAttribute("bookcase",bookCaseDAO.query(str));

request.getRequestDispatcher("bookcase.jsp").forward(request, response);

}

/***********************查询修改书架信息**************************/

private void bookCaseModifyQuery(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

BookCaseForm bookCaseForm=new BookCaseForm();

bookCaseForm.setId(Integer.valueOf(request.getParameter("ID")));

request.setAttribute("bookCaseQueryif",bookCaseDAO.queryM(bookCaseForm));

request.getRequestDispatcher("bookCase_Modify.jsp").forward(request, response);

}

/***********************修改书架信息**************************/

private void bookCaseModify(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

BookCaseForm bookCaseForm=new BookCaseForm();

bookCaseForm.setId(Integer.parseInt(request.getParameter("id")));

bookCaseForm.setName(request.getParameter("name"));

int ret=bookCaseDAO.update(bookCaseForm);

if(ret==0){

request.setAttribute("error","修改书架信息失败！");

request.getRequestDispatcher("error.jsp").forward(request, response);

}else{

request.getRequestDispatcher("bookcase_ok.jsp?para=2").forward(request, response);

}

}

/***********************删除书架信息**************************/

private void bookCaseDel(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

BookCaseForm bookCaseForm=new BookCaseForm();

bookCaseForm.setId(Integer.valueOf(request.getParameter("ID")));

int ret=bookCaseDAO.delete(bookCaseForm);

if(ret==0){

request.setAttribute("error","删除书架信息失败！");

request.getRequestDispatcher("error.jsp").forward(request, response);

}else{

request.getRequestDispatcher("bookcase_ok.jsp?para=3").forward(request, response);

}

}

public void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

doGet(request, response);

}

}