【Java开源代码栏目提醒】:网学会员在Java开源代码频道为大家收集整理了TypeServlet.java提供大家参考,希望对大家有所帮助!
package com.
webtier;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import com.dao.TypeDao;
import com.domain.TypeVO;
public class TypeServlet
extends HttpServlet {
private int method;
private TypeVO vo = null;
private TypeDao dao = null;
public void doGet(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
request.setCharacterEncoding("gb2312");
vo = new TypeVO();
dao = new TypeDao();
method = Integer.parseInt(request.getParameter("method"));
switch (method) {
case 0: {
this.typeSelect(request, response); //全部查询
break;
}
case 1: {
this.typeInsert(request, response); //添加计量单位信息
break;
}
case 2: {
this.typeDelete(request, response); //删除操作
break;
}
case 3: {
this.typeSelectOne(request, response); //查询要修改信息的操作
break;
}
case 4: {
this.typeUpdate(request, response); //修改操作
break;
}
}
}
//修改操作
public void typeUpdate(HttpServletRequest request,
HttpServletResponse response) throws
ServletException, IOException {
vo.setType_number(request.getParameter("number"));
vo.setType_name(request.getParameter("name"));
vo.setType_remark(request.getParameter("remark"));
dao.typeUpdate(vo);
request.setAttribute("success", "修改信息成功");
RequestDispatcher requestDispatcher = request.getRequestDispatcher(
"dataType/success.jsp");
requestDispatcher.forward(request, response);
}
//
查询要修改信息的操作
public void typeSelectOne(HttpServletRequest request,
HttpServletResponse response) throws
ServletException, IOException {
request.setAttribute("type",
dao.typeSelectOne(request.getParameter("number")));
RequestDispatcher requestDispatcher = request.getRequestDispatcher(
"dataType/typeUpdate.jsp");
requestDispatcher.forward(request, response);
}
//删除操作
public void typeDelete(HttpServletRequest request,
HttpServletResponse response) throws
ServletException, IOException {
dao.typeDelete(Integer.valueOf(request.getParameter("id")));
request.setAttribute("success", "删除信息成功");
RequestDispatcher requestDispatcher = request.getRequestDispatcher(
"dataType/success.jsp");
requestDispatcher.forward(request, response);
}
//添加计量单位信息
public void typeInsert(HttpServletRequest request,
HttpServletResponse response) throws
ServletException, IOException {
String operate = request.getParameter("operate");
String url = null;
if (operate == null) {
url = "dataType/typeInsert.jsp";
}
else {
String number = "noNumber";
vo.setType_number(number);
vo.setType_name(request.getParameter("name"));
vo.setType_remark(request.getParameter("remark"));
if (dao.typeSelectName(request.getParameter("name")) == null) {
dao.typeInsert(vo);
TypeVO type = dao.typeSelectOne(number);
dao.typeUpdateNumber(type.getId(), number);
request.setAttribute("success", "添加信息成功");
}
else {
request.setAttribute("success", "该名称已经存在");
}
url = "dataType/success.jsp";
}
RequestDispatcher requestDispatcher = request.getRequestDispatcher(url);
requestDispatcher.forward(request, response);
}
//全部查询
public void typeSelect(HttpServletRequest request,
HttpServletResponse response) throws
ServletException, IOException {
List list = dao.typeSelect();
int pageNumber = list.size(); //计算出有多少条记录
int maxPage = pageNumber; //计算有多少页数
String number = request.getParameter("i");
if (maxPage % 5 == 0) {
maxPage = maxPage / 5;
}
else {
maxPage = maxPage / 5 + 1;
}
if (number == null) {
number = "0";
}
request.setAttribute("number", String.valueOf(number));
request.setAttribute("maxPage", String.valueOf(maxPage));
request.setAttribute("pageNumber", String.valueOf(pageNumber));
request.setAttribute("list", list);
RequestDispatcher requestDispatcher = request.getRequestDispatcher(
"dataType/typeSelect.jsp");
requestDispatcher.forward(request, response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
doGet(request, response);
}
}