java web简单的职工管理系统
今天接了一个职工管理系统，大学生的期末作业。总的而来说实现功能比较简单，围绕增删查改进行。当然最后还有实验报告要写。
功能如下：
存储职工编号，职工姓名，日期，每次打卡时间（一天可多次打卡，第一次为上班时间、最后一次为下班时间）等信息。
考勤信息的增加、删除、修改和查询（如按月统计打卡次数，某人在指定日期的考勤记录等）。
所采用的的技术：jquery+easyui+servlet+mysql5.0
由于放上所有代码过于冗余，仅介绍核心。
登录界面：（网上搜的模板）
职工考勤的增删查改以及查询功能。
jsp：
employee.jsp(职工考勤页面)
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta charset="UTF-8">
<title>职工考勤管理</title>
<link rel="stylesheet" type="text/css"
href="easyui/themes/default/easyui.css">
<link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/easyui/themes/icon.css">
<link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/easyui/css/demo.css">
<script type="text/javascript" src="easyui/jquery.min.js"></script>
<script type="text/javascript" src="${pageContext.request.contextPath}/easyui/jquery.easyui.min.js"></script>
<script type="text/javascript" src="${pageContext.request.contextPath}/easyui/js/validateExtends.js"></script>
<script type="text/javascript">
$(function() {
//datagrid初始化
var indexFlag=-1;//用于单选时判断是否控制复选框的勾选状态
$('#dataList').datagrid({
title : '考勤列表',
iconCls : 'icon-more',//图标
border : true,
collapsible : false,//是否可折叠的
fit : true,//自动大小
method : "post",
url : "EmployeeServlet?method=EmployeeList&t="+ new Date().getTime(),
idField : 'id',
singleSelect : true,//是否单选
pagination : true,//分页控件
rownumbers : true,//行号
sortName : 'id',
sortOrder : 'DESC',
fitColumns : true,
remoteSort : false,
onCheck:function(index,row){//第一次选中该行，让他的index赋值给indexFlag，第二层选中该行就把对勾取消
if(indexFlag==index){
$("#dataList").datagrid('uncheckRow',index);//执行方法，取消该行
indexFlag=-1;
}else{
indexFlag=index;
}
},
columns: [[
{field:'chk',checkbox: true,width:50},
{field:'id',title:'职工号',width:50, sortable: true},
{field:'name',title:'姓名',width:50, sortable: true},
{field:'time',title:'日期',width:150},
{field:'first_clock',title:'第一次打卡',width:150},
{field:'end_clock',title:'最后一次打卡',width:150},
]],
toolbar : "#toolbar",
onBeforeLoad : function() {
}
});
//设置分页控件
var p = $('#dataList').datagrid('getPager');
$(p).pagination({
pageSize : 10,//每页显示的记录条数，默认为10
pageList : [10, 20, 30, 40, 50 ],//可以设置每页记录条数的列表
beforePageText : '第',//页数文本框前显示的汉字
afterPageText : '页 共 {pages} 页',
displayMsg : '当前显示 {from} - {to} 条记录 共 {total} 条记录',
});
//设置工具类按钮
$("#add").click(function() {
$("#addDialog").dialog("open");
});
//修改
$("#edit").click(function() {
var selectRow = $("#dataList").datagrid("getSelected");//必须选中某一行才能进行修改
//console.log(selectRow);
if(selectRow == null){
$.messager.alert("消息提醒", "请选择数据进行修改!", "warning");
return;
}
$("#editDialog_").dialog("open");//修改窗口打开
});
//删除
$("#delete").click(function(){
var selectRow = $("#dataList").datagrid("getSelected");
if(selectRow == null){
$.messager.alert("消息提醒", "请选择数据进行删除!", "warning");
} else{
var empid = selectRow.id;
$.messager.confirm("消息提醒", "将删除员工信息，确认继续？", function(r){
if(r){
$.ajax({
type: "post",
url: "EmployeeServlet?method=Deleteemp",
data: {empid: empid},
success: function(msg){
if(msg == "success"){
$.messager.alert("消息提醒","删除成功!","info");
//刷新表格
$("#dataList").datagrid("reload");
} else{
$.messager.alert("消息提醒","删除失败!","warning");
return;
}
}
});
}
});
}
});
//下拉框通用属性
$("#add_department, #edit_department").combobox({
width : "200",
height : "30",
valueField : "id",
textField : "name",
multiple : false, //可多选
editable : false, //不可编辑
method : "post",
});
$("#add_department").combobox({
url : "DepartmentServlet?method=getDepartmentlist&t="
+ new Date().getTime() + "&from=combox",
onLoadSuccess : function() {
//默认选择第一条数据
var data = $(this).combobox("getData");
$(this).combobox("setValue", data[0].id);
}
});
$("#edit_department").combobox({
url : "DepartmentServlet?method=getDepartmentlist&t="
+ new Date().getTime() + "&from=combox",
onLoadSuccess : function() {
//默认选择第一条数据
var data = $(this).combobox("getData");
$(this).combobox("setValue", data[0].id);
}
});
//设置添加员工窗口
$("#addDialog").dialog({
title: "添加员工记录",
width: 650,
height: 460,
iconCls: "icon-add",
modal: true,
collapsible: false,
minimizable: false,
maximizable: false,
draggable: true,
closed: true,
buttons: [
{
text:'添加',
plain: true,
iconCls:'icon-user_add',
handler:function(){
var validate = $("#addForm").form("validate");
if(!validate){
$.messager.alert("消息提醒","请检查你输入的数据!","warning");
return;
} else{
$.ajax({
type: "post",
url: "EmployeeServlet?method=AddEmployee",
data: $("#addForm").serialize(),
success: function(msg){
if(msg == "success"){
$.messager.alert("消息提醒","添加成功!","info");
//关闭窗口
$("#addDialog").dialog("close");
//清空原表格数据
$("#add_name").textbox('setValue', "");
$("#add_time").datebox('setValue',"");
$("#add_first_clock").textbox('setValue', "");
$("#add_end_clock").textbox('setValue', "");
$('#dataList').datagrid("reload");
} else{
$.messager.alert("消息提醒","添加失败!","warning");
return;
}
}
});
}
}
},
{
text:'重置',
plain: true,
iconCls:'icon-reload',
handler:function(){
//清空表单
$("#add_name").textbox('setValue', "");
$("#add_time").datebox('setValue',"");
$("#add_first_clock").textbox('setValue', "");
$("#add_end_clock").textbox('setValue', "");
}
},
],
});
//设置编辑员工窗口
$("#editDialog_").dialog({
title: "修改员工信息",
width: 650,
height: 460,
iconCls: "icon-edit",
modal: true,
collapsible: false,
minimizable: false,
maximizable: false,
draggable: true,
closed: true,
buttons: [
{
text:'提交',
plain: true,
iconCls:'icon-user_add',
handler:function(){
var validate = $("#editForm").form("validate");
if(!validate){
$.messager.alert("消息提醒","请检查你输入的数据!","warning");
return;
} else{
$.ajax({
type: "post",
url: "EmployeeServlet?method=Editemp&t="+new Date().getTime(),
data: $("#editForm").serialize(),
success: function(msg){
if(msg == "success"){
$.messager.alert("消息提醒","更新成功!","info");
//关闭窗口
$("#editDialog_").dialog("close");
//刷新表格
$("#dataList").datagrid("reload");
} else{
$.messager.alert("消息提醒","更新失败!","warning");
return;
}
}
});
}
}
},
{
text:'重置',
plain: true,
iconCls:'icon-reload',
handler:function(){
//清空表单
$("#edit_name").textbox('setValue', "");
$("#edit_time").datebox('setValue',"");
$("#edit_first_clock").textbox('setValue', "");
$("#edit_end_clock").textbox('setValue', "");
}
}
],
onBeforeOpen: function(){
var selectRow = $("#dataList").datagrid("getSelected");
//console.log(selectRow);
//设置值
$("#edit_name").textbox('setValue',selectRow.name );
$("#edit_time").datebox('setValue',selectRow.time);
$("#edit_first_clock").textbox('setValue', selectRow.first_clock);
$("#edit_end_clock").textbox('setValue', selectRow.end_clock);
$("#edit-id").val(selectRow.id);
}
});
//搜索按钮监听事件
$("#search-btn").click(function() {
$('#dataList').datagrid('load',{
emp_name : $('#search_emp_name').val(),
search_time:$("#search_time").datebox('getValue')
});
$('#search_emp_name').textbox('setValue','');
});
});
</script>
<script type="text/javascript">
function myformatter(date){
var y = date.getFullYear();
var m = date.getMonth()+1;
var d = date.getDate();
return y+'-'+(m<10?('0'+m):m)+'-'+(d<10?('0'+d):d);
}
function myparser(s){
if (!s) return new Date();
var ss = (s.split('-'));
var y = parseInt(ss[0],10);
var m = parseInt(ss[1],10);
var d = parseInt(ss[2],10);
if (!isNaN(y) && !isNaN(m) && !isNaN(d)){
return new Date(y,m-1,d);
} else {
return new Date();
}
}
</script>
</head>
<body>
<!-- 薪资列表 -->
<table id="dataList" cellspacing="0" cellpadding="0">
</table>
<!-- 工具框 -->
<div id="toolbar">
<div style="float: left;">
<a id="add" href="javascript:;" class="easyui-linkbutton"
data-options="iconCls:'icon-add',plain:true">添加</a>
</div>
<div style="float: left;" class="datagrid-btn-separator"></div>
<div style="float: left;">
<a id="edit" href="javascript:;" class="easyui-linkbutton"
data-options="iconCls:'icon-edit',plain:true">修改</a>
</div>
<div style="float: left;" class="datagrid-btn-separator"></div>
<div style="float: left;">
<a id="delete" href="javascript:;" class="easyui-linkbutton"
data-options="iconCls:'icon-some-delete',plain:true">删除</a>
</div>
<div style="float: left;" class="datagrid-btn-separator"></div>
<div style="float: left; margin: 3px 5px 0 5px;">
姓名：<input id="search_emp_name" class="easyui-textbox"
name="search_emp_name" />
</div>
<div style="float: left;" class="datagrid-btn-separator"></div>
<div style="margin: 3px 5px 0 5px;">
日期：<input id="search_time" data-options="formatter:myformatter,parser:myparser" class="easyui-datebox" name="search_time" />
<a id="search-btn" href="javascript:;" class="easyui-linkbutton" data-options="iconCls:'icon-search',plain:true">搜索</a>
</div>
</div>
<!-- 添加员工窗口 -->
<div id="addDialog" style="padding: 10px">
<form id="addForm" method="post">
<table cellpadding="8">
<tr>
<td>姓名:</td>
<td><input id="add_name" style="width: 200px; height: 30px;"
class="easyui-textbox" type="text" name="add_name"
data-options="required:true, missingMessage:'请填写姓名'" /></td>
</tr>
<tr>
<td>日期:</td>
<td>
<input id="add_time" data-options="formatter:myformatter,parser:myparser" class="easyui-datebox" name="add_time" />
</td>
</tr>
<tr>
<td>第一次打卡:</td>
<td><input id="add_first_clock"
style="width: 200px; height: 30px;" class="easyui-textbox"
name="add_first_clock" /></td>
</tr>
<tr>
<td>最后一次打卡:</td>
<td><input id="add_end_clock"
style="width: 200px; height: 30px;" class="easyui-textbox"
name="add_end_clock" /></td>
</tr>
</table>
</form>
</div>
<!-- 修改员工窗口 -->
<div id="editDialog_" style="padding: 10px">
<form id="editForm" method="post">
<input type="hidden" name="edit-id" id=edit-id>
<table cellpadding="8">
<tr>
<td>姓名:</td>
<td><input id="edit_name" style="width: 200px; height: 30px;"
class="easyui-textbox" type="text" name="edit_name"
data-options="required:true, missingMessage:'请填写姓名'" /></td>
</tr>
<tr>
<td>日期:</td>
<td>
<input id="edit_time" data-options="formatter:myformatter,parser:myparser" class="easyui-datebox" name="edit_time" />
</td>
</tr>
<tr>
<td>第一次打卡:</td>
<td><input id="edit_first_clock"
style="width: 200px; height: 30px;" class="easyui-textbox"
name="edit_first_clock" /></td>
</tr>
<tr>
<td>最后一次打卡:</td>
<td><input id="edit_end_clock"
style="width: 200px; height: 30px;" class="easyui-textbox"
name="edit_end_clock" /></td>
</tr>
</table>
</form>
</div>
<!-- 提交表单处理iframe框架 -->
<iframe id="photo_target" name="photo_target"></iframe>
</body>
</html>
login.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
职工考勤管理程序
职工考勤管理程序
Servlet:
EmployeeServlet(完成后台的增删查改)
package com.item.test.Servlet;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.alibaba.fastjson.JSONObject;
import com.item.test.dao.Employeesdao;
import com.item.test.model.Employee;
import com.item.test.model.Page;
/**
* Servlet implementation class EmployeeServlet
*/
@WebServlet("/EmployeeServlet")
public class EmployeeServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String method=request.getParameter("method");
if("toListemployee".equals(method)) {
Listemployee(request,response);
}else if("AddEmployee".equals(method)) {
AddEmployee(request,response);
}else if("EmployeeList".equals(method)) {
EmployeeList(request,response);
}else if("Deleteemp".equals(method)) {
Deleteemp(request,response);
}else if("Editemp".equals(method)) {
Editemp(request,response);
}
}
private void Editemp(HttpServletRequest request, HttpServletResponse response) {
// TODO Auto-generated method stub
try {
request.setCharacterEncoding("UTF-8");
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
int id=Integer.parseInt(request.getParameter("edit-id"));
String name = request.getParameter("edit_name");
String edit_time=request.getParameter("edit_time");
String edit_first_clock=request.getParameter("edit_first_clock");
String edit_end_clock=request.getParameter("edit_end_clock");
Date edit_times=null;
try {
edit_times=new SimpleDateFormat("yyyy-MM-dd").parse(edit_time);
} catch (ParseException e) {
e.printStackTrace();
}
Employee emp=new Employee();
emp.setId(id);
emp.setName(name);
emp.setTime(edit_times);
emp.setFirst_clock(edit_first_clock);
emp.setEnd_clock(edit_end_clock);
Employeesdao dao=new Employeesdao();
if(dao.editemp(emp)) {
try {
response.getWriter().print("success");
} catch (IOException e) {
e.printStackTrace();
}
}else {
try {
response.getWriter().print("error");
} catch (IOException e) {
e.printStackTrace();
}
}
}
private void Deleteemp(HttpServletRequest request, HttpServletResponse response) {
// TODO Auto-generated method stub
int id=Integer.parseInt(request.getParameter("empid"));
Employeesdao dao=new Employeesdao();
if(dao.deleteemp(id)) {
try {
response.getWriter().print("success");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}else {
try {
response.getWriter().print("error");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
private void EmployeeList(HttpServletRequest request, HttpServletResponse response) {
// TODO Auto-generated method stub
try {
request.setCharacterEncoding("UTF-8");
} catch (UnsupportedEncodingException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
String name=request.getParameter("emp_name");
String serach_time=request.getParameter("search_time");
Integer currentPage = request.getParameter("page") == null ? 1 : Integer.parseInt(request.getParameter("page"));
Integer pageSize = request.getParameter("rows") == null ? 999 : Integer.parseInt(request.getParameter("rows"));
Employee emp=new Employee();
emp.setName(name);
Employeesdao dao=new Employeesdao();
List<Employee>list=dao.getEmploteelist(emp,new Page(currentPage, pageSize),serach_time);
// for(Employee emps:list) {
// System.out.println(emps);
// }
//System.out.println(JSONObject.toJSONString(list));
response.setCharacterEncoding("UTF-8");
int total = dao.getEmplist(emp);
Map<String, Object> ret = new HashMap<String, Object>();
ret.put("total", total);
ret.put("rows", list);
String from = request.getParameter("from");
if("combox".equals(from)){
try {
response.getWriter().write(JSONObject.toJSONString(list));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}else{
try {
response.getWriter().write(JSONObject.toJSONString(ret));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
private void AddEmployee(HttpServletRequest request, HttpServletResponse response) {
// TODO Auto-generated method stub
String name = request.getParameter("add_name");
String add_time=request.getParameter("add_time");
String add_first_clock=request.getParameter("add_first_clock");
String add_end_clock=request.getParameter("add_end_clock");
//System.out.println(name+" "+add_time+" "+add_first_clock+" "+add_end_clock);
Date add_times=null;
try {
add_times=new SimpleDateFormat("yyyy-MM-dd").parse(add_time);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Employee emp=new Employee();
emp.setName(name);
emp.setTime(add_times);
emp.setFirst_clock(add_first_clock);
emp.setEnd_clock(add_end_clock);
Employeesdao dao=new Employeesdao();
if(dao.addemployee(emp)) {
try {
response.getWriter().print("success");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}else {
try {
response.getWriter().print("error");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
//System.out.println(name+" "+add_times+" "+add_first_clock+" "+add_end_clock);
}
private void Listemployee(HttpServletRequest request, HttpServletResponse response) {
// TODO Auto-generated method stub
try {
request.getRequestDispatcher("/view/employee.jsp").forward(request, response);
} catch (ServletException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
LoginServlet（验证登录）
package com.item.test.Servlet;
import java.io.IOException;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import com.item.test.dao.Userdao;
import com.item.test.model.Userlogin;
/**
*/
@WebServlet("/LoginServlet")
public class LoginServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("UTF-8");
//获取携带的参数中有LoginOut，则退出
String method=request.getParameter("method");
//进行退出操作
if(method.equals("LoginOut")) {
LoginOut(request,response);
return ;
}
String loginStatus = "loginError";
String user=request.getParameter("user");
String pwd = request.getParameter("pwd");
Userlogin login=new Userlogin();
login.setUser(user);
login.setPwd(pwd);
Userdao dao=new Userdao();
try {
Userlogin login_res=dao.login(login);
if(login_res==null) {
response.getWriter().print(loginStatus);
return ;
}
HttpSession session=request.getSession();
session.setAttribute("user",login_res);
loginStatus="loginSuccess";
response.getWriter().print(loginStatus);
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private void LoginOut(HttpServletRequest request, HttpServletResponse response) throws IOException {
// TODO Auto-generated method stub
//删除存放在session中的用户信息，并转发到登录界面
request.getSession().removeAttribute("user");
response.sendRedirect("view/login.jsp");
}
/**
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
SystemServletemp(系统管理)
package com.item.test.Servlet;
import java.io.IOException;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.item.test.dao.Userdao;
import com.item.test.model.Userlogin;
/**
* Servlet implementation class SystemServlet
*/
@WebServlet("/SystemServletemp")
public class SystemServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String method = request.getParameter("method");
if ("toPersonalView".equals(method)) {
personalView(request, response);
return;
} else if ("EditPasswod".equals(method)) {
try {
editPassword(request, response);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return;
}
request.getRequestDispatcher("view/system.jsp").forward(request, response);
}
/**
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
private void personalView(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// TODO Auto-generated method stub
request.getRequestDispatcher("view/personalView.jsp").forward(request, response);
}
private void editPassword(HttpServletRequest request, HttpServletResponse response) throws IOException, SQLException {
// TODO Auto-generated method stub
String password = request.getParameter("password");
String newPassword = request.getParameter("newpassword");
response.setCharacterEncoding("UTF-8");
Userlogin user=(Userlogin) request.getSession().getAttribute("user");
if(!user.getPwd().equals(password)) {
response.getWriter().write("原密码错误！");
return ;
}
Userdao dao=new Userdao();
if(dao.editPassword(user, newPassword)) {
response.getWriter().print("success");
}else {
response.getWriter().print("数据库修改错误");
}
}
}
实体类：
Employee（职工考勤信息，由于使用dbutiles保持和表中的字段一致）
package com.item.test.model;
import java.util.Date;
import com.alibaba.fastjson.annotation.JSONField;
public class Employee {
private int id;
private String name;
@JSONField(format="yyyy-MM-dd")
private Date time;
private String first_clock;
private String end_clock;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Date getTime() {
return time;
}
public void setTime(Date time) {
this.time = time;
}
public String getFirst_clock() {
return first_clock;
}
public void setFirst_clock(String first_clock) {
this.first_clock = first_clock;
}
/**
* @return
*/
public String getEnd_clock() {
return end_clock;
}
@Override
public String toString() {
return "Employee [id=" + id + ", name=" + name + ", time=" + time + ", first_clock=" + first_clock
+ ", end_clock=" + end_clock + "]";
}
public void setEnd_clock(String end_clock) {
this.end_clock = end_clock;
}
}
Page(前端分页)
package com.item.test.model;
public class Page {
private int start;//起始页
private int currentPage;//当前页
private int pageSize;//每页显示数量
public Page(int currentpage,int pageSize) {
this.start=(currentpage-1)*pageSize;//根据拿到的当前页和每页显示的数量，去mysql中进行查找
//start表示起始查询位置。
this.currentPage=currentpage;
this.pageSize=pageSize;
}
public int getStart() {
return start;
}
public void setStart(int start) {
this.start = start;
}
public int getCurrentPage() {
return currentPage;
}
public void setCurrentPage(int currentPage) {
this.currentPage = currentPage;
}
public int getPageSize() {
return pageSize;
}
public void setPageSize(int pageSize) {
this.pageSize = pageSize;
}
}
Userlogin(用户登录实体)
package com.item.test.model;
public class Userlogin {
private int id;
private String user;
private String pwd;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUser() {
return user;
}
public void setUser(String user) {
this.user = user;
}
public String getPwd() {
return pwd;
}
public void setPwd(String pwd) {
this.pwd = pwd;
}
}
dao层
Employeesdao(职工的增删查改)
package com.item.test.dao;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanListHandler;
import org.apache.commons.dbutils.handlers.ScalarHandler;
import com.item.test.model.Employee;
import com.item.test.model.Page;
import com.item.test.utiles.C3P0Utiles;
import com.item.test.utiles.StringUtiles;
public class Employeesdao {
QueryRunner queryRunner=new QueryRunner(C3P0Utiles.getDataSource());
//添加员工信息
public boolean addemployee(Employee emp) {
String sql="insert into employees values(null,?,?,?,?)";
int cnt=-1;
try {
cnt=queryRunner.update(sql,emp.getName(),emp.getTime(),emp.getFirst_clock(),emp.getEnd_clock());
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return cnt>0?true:false;
}
//查询到所有员工信息并以list集合返回
public List<Employee> getEmploteelist(Employee emp, Page page,String search_time) {
List<Employee> ret = new ArrayList<Employee>();
String sql = "select * from employees ";
if(!StringUtiles.isEmpty(emp.getName())){
sql += "and name like '%" + emp.getName() +"%' ";
}
if(search_time!=null&&!search_time.equals("")) {
sql+=" and time like'%"+search_time+"%'";
}
sql += " limit " + page.getStart() + "," + page.getPageSize();
try {
ret=queryRunner.query(sql.replaceFirst("and", "where"), new BeanListHandler<Employee>(Employee.class));
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return ret;
}
//获取员工的总数
public int getEmplist(Employee emp) {
String sql = "select count(*)as total from employees ";
if(!StringUtiles.isEmpty(emp.getName())){
sql += "and name like '%" + emp.getName() + "%'";
}
Long total=(long)-1;
try {
total = queryRunner.query(sql.replaceFirst("and", "where"), new ScalarHandler<Long>());
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return total.intValue();
}
//删除员工信息
public boolean deleteemp(int id) {
String sql="delete from employees where id=?";
int cnt=-1;
try {
cnt = queryRunner.update(sql,id);
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return cnt>0?true:false;
}
//编辑员工信息
public boolean editemp(Employee emp) {
// TODO Auto-generated method stub
String sql = "update employees set name = ?,time=?,first_clock=?,end_clock=? where id=?";
int cnt=-1;
try {
cnt = queryRunner.update(sql,emp.getName(),emp.getTime(),emp.getFirst_clock(),emp.getEnd_clock(),emp.getId());
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return cnt>0?true:false;
}
}
Userdao（用户的查询以及修改密码）
package com.item.test.dao;
import java.sql.SQLException;
import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanHandler;
import org.apache.commons.dbutils.handlers.BeanListHandler;
import com.item.test.model.Userlogin;
import com.item.test.utiles.C3P0Utiles;
public class Userdao {
public Userlogin login(Userlogin user) throws SQLException{
//查询登录用户，并返回该登录用户
String sql="select * from login where user=? and pwd=?";
QueryRunner queryRunner=new QueryRunner(C3P0Utiles.getDataSource());
Userlogin res=(Userlogin) queryRunner.query(sql, new BeanHandler<>(Userlogin.class),user.getUser(),user.getPwd());
return res;
}
public boolean editPassword(Userlogin user, String pwd) throws SQLException {
//更新密码
String sql = "update login set pwd = '"+pwd+"' where id = " +"'"+user.getId()+"'";
QueryRunner queryRunner=new QueryRunner(C3P0Utiles.getDataSource());
int cnt=queryRunner.update(sql);
return cnt>0?true:false;
}
}
过滤器（防止非法用户进入）
Loginfilter
package com.item.test.filter;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* 拦截用户未登录状态下的操作
*/
@WebFilter(filterName="/Loginfilter",value="/SystemServletemp")
public class Loginfilter implements Filter {
/**
* Default constructor.
*/
public Loginfilter() {
// TODO Auto-generated constructor stub
}
/**
*/
public void destroy() {
// TODO Auto-generated method stub
}
/**
* @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
*/
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
HttpServletRequest req = (HttpServletRequest)request;
HttpServletResponse rep = (HttpServletResponse)response;
Object user = req.getSession().getAttribute("user");
//验证user
if(user==null) {
rep.sendRedirect("index.jsp");
return ;
}else {
chain.doFilter(request, response);
}
}
/**
* @see Filter#init(FilterConfig)
*/
public void init(FilterConfig fConfig) throws ServletException {
// TODO Auto-generated method stub
}
}
utiles(工具类)
C3P0Utiles（获取数据库的连接）
package com.item.test.utiles;
import javax.sql.DataSource;
import com.mchange.v2.c3p0.ComboPooledDataSource;
public class C3P0Utiles {
private static ComboPooledDataSource dataSource=new ComboPooledDataSource();
public static DataSource getDataSource() {
return dataSource;
}
}
StringUtiles(字符串检查)
package com.item.test.utiles;
public class StringUtiles {
public static boolean isEmpty(String str) {
if(str == null || "".equals(str))return true;
return false;
}
}
数据库：用C3p0进行连接。
总结：返回到前端的是json格式，有一点问题就是职工实体类和数据库中的表都是Date类型，放到页面上的格式不太好，最后用了在实体类中time类型上使用注解@JSONField(format=“yyyy-MM-dd”)格式化一下即可。用的jar包fastjson。同时查询某个日期是模糊查询，可以查询某年或某月或某日或指定日期的考勤记录。