【Java开源代码栏目提醒】:文章导读:在新的一年中,各位网友都进入紧张的学习或是工作阶段。网学会员整理了Java开源代码-UnitServlet.java的相关内容供大家参考,祝大家在新的一年里工作和学习顺利!
package com.
webtier;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import com.domain.UnitVO;
import com.dao.UnitDao;
//计量单位的servlet
public class UnitServlet
extends HttpServlet {
private int method;
private UnitVO vo;
private UnitDao dao;
public void doGet(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
request.setCharacterEncoding("gb2312");
vo = new UnitVO();
dao = new UnitDao();
method = Integer.parseInt(request.getParameter("method"));
switch (method) {
case 0: {
this.unitSelect(request, response); //全部查询
break;
}
case 1: {
this.unitInsert(request, response); //添加计量单位信息
break;
}
case 2: {
this.unitDelete(request, response); //删除操作
break;
}
case 3: {
this.unitSelectOne(request, response); //查询要修改信息的操作
break;
}
case 4:{
this.unitUpdate(request,response);//修改操作
break;
}
}
}
//修改操作
public void unitUpdate(HttpServletRequest request,
HttpServletResponse response) throws
ServletException, IOException {
vo.setUnit_number(request.getParameter("number"));
vo.setUnit_name(request.getParameter("name"));
vo.setUnit_remark(request.getParameter("remark"));
dao.unitUpdate(vo);
request.setAttribute("success", "修改信息成功");
RequestDispatcher requestDispatcher = request.getRequestDispatcher(
"dataUnit/success.jsp");
requestDispatcher.forward(request, response);
}
//
查询要修改信息的操作
public void unitSelectOne(HttpServletRequest request,
HttpServletResponse response) throws
ServletException, IOException {
request.setAttribute("unit",
dao.unitSelectOne(request.getParameter("number")));
RequestDispatcher requestDispatcher = request.getRequestDispatcher(
"dataUnit/unitUpdate.jsp");
requestDispatcher.forward(request, response);
}
//删除操作
public void unitDelete(HttpServletRequest request,
HttpServletResponse response) throws
ServletException, IOException {
dao.unitDelete(Integer.valueOf(request.getParameter("id")));
request.setAttribute("success", "删除信息成功");
RequestDispatcher requestDispatcher = request.getRequestDispatcher(
"dataUnit/success.jsp");
requestDispatcher.forward(request, response);
}
//添加计量单位信息
public void unitInsert(HttpServletRequest request,
HttpServletResponse response) throws
ServletException, IOException {
String operate = request.getParameter("operate");
String url = null;
if (operate == null) {
url = "dataUnit/unitInsert.jsp";
}
else {
String number = "noNumber";
vo.setUnit_number(number);
vo.setUnit_name(request.getParameter("name"));
vo.setUnit_remark(request.getParameter("remark"));
if (dao.unitSelectName(request.getParameter("name")) == null) {
dao.unitInsert(vo);
UnitVO unit = dao.unitSelectOne(number);
dao.unitUpdateNumber(unit.getId(), number);
request.setAttribute("success", "添加信息成功");
}
else {
request.setAttribute("success", "该名称已经存在");
}
url = "dataUnit/success.jsp";
}
RequestDispatcher requestDispatcher = request.getRequestDispatcher(url);
requestDispatcher.forward(request, response);
}
//全部查询
public void unitSelect(HttpServletRequest request,
HttpServletResponse response) throws
ServletException, IOException {
List list = dao.unitSelect();
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(
"dataUnit/unitSelect.jsp");
requestDispatcher.forward(request, response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
doGet(request, response);
}
}