基于MVC三层架构实现旅游管理系统项目
基于mvc三成架构实现 “旅游管理系统”
1、MVC三层架构描述
- 1.1、用户界面层（User Interface Layer），其中，用户界面层用来展示数据以及接收用户输入的数据，给用户的交互提供界面
- 1.2、 业务逻辑层（Business Logic Layer），其中，业务逻辑层，是项目的核心部分，接收到用户请求数据之后进行业务处理
- 1.3、 数据访问层（Data Access Layer），其中，数据访问层，又称为数据持久层，对业务逻辑层处理的数据进行持久化操作
- 1.4、都是对项目进行分层、三层架构是对项目结构划分的大概的思路，没有明确指出如何具体划分、而MVC可以看做是对三层架构具体实现，通常使用MVC作为web层的具体实现
- 1.5、提高代码的复用性、维护性、扩展性
2、项目开发流程分析
- 2.1、把项目需求转变成看得见的图片（美工）
- 2.2、.负责人同意之后，交给web前端工程师，根据图片设计成html页面，纯静态页面
- 2.3、后端工程师（Java工程师），将静态的网站改造成动态网站（网站内容可以通过台进行管理）
- 2.4、后台，对数据库进行增、删、改、查：维护给用户展示的数据
- 2.5、前台，从数据库查询内容后渲染到前台：给用户展示页面及其数据
3、该项目前后端分离实现功能
-
3.1、后端实现功能有：登录注册、增、删、改、查、分页（显示页数）、多条件搜索、用户权限、过滤器、文件上传（图片上传）、用到技术：mvc与三层架构、
-
-3.2、前端实现功能有（后台添加数据显示到前端页面上）：导航栏、搜索栏、轮播图、登录注册、用到技术：H5（布局）、css(样式)、js（动态）
4、项目演示
- 4.1、后台演示（GIF）
- 4.2、前台演示，后台添加数据前台显示（GIF）
5、搭建项目结构
6、用到的jar包
- commons-dbutils-1.7.jar
- commons-fileupload-1.4.jar
- commons-io-2.6.jar
- commons-lang-2.6.jar
- druid-1.1.20.jar
- jsoup-1.14.1.jar
- jstl-1.2.jar
- mysql-connector-java-5.1.49.jar
- 下载相关jar包链接已提供：https://mvnrepository.com/
7、数据库结构
-
7.1、登录注册（数据库）
-
7.2、商家管理
8、注册登录代码（后台）
- 8.1后台代码（注册+登录）
- 8.1.1、bean
package com.bean;
public class UserHou {
private Integer id;
private String username;
private String userpwd;
private String nickname;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getUserpwd() {
return userpwd;
}
public void setUserpwd(String userpwd) {
this.userpwd = userpwd;
}
public String getNickname() {
return nickname;
}
public void setNickname(String nickname) {
this.nickname = nickname;
}
}
- 8.2后台代码（注册+登录）
- 8.1.2、dao层
package com.dao;
import java.util.List;
import com.bean.Role;
import com.bean.UserHou;
public interface UserHouDao {
Integer register(String username,String userpwd,String nickname) throws Exception;
List<UserHou> list() throws Exception;
List<UserHou> quer(String id, String username) throws Exception;
Integer delete(String id) throws Exception;
UserHou alterid(String id) throws Exception;
Integer alterUserHou(UserHou userHou) throws Exception;
}
- 8.3后台代码（注册+登录）
- 8.1.3、dao.Impl
package com.dao.impl;
import java.util.List;
import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanHandler;
import org.apache.commons.dbutils.handlers.BeanListHandler;
import com.alibaba.druid.util.StringUtils;
import com.bean.Role;
import com.bean.UserHou;
import com.dao.UserHouDao;
public class UserHouDaoImpl extends BaesDao implements UserHouDao{
@Override
public Integer register(String username, String userpwd, String nickname) throws Exception {
// TODO Auto-generated method stub
QueryRunner qr = initQueryRunner();
String sql = "insert into t_admin_user(username,userpwd,nickname) values (?,?,?)";
int i = qr.execute(sql,username,userpwd,nickname);
return i;
}
@Override
public List<UserHou> list() throws Exception {
// TODO Auto-generated method stub
QueryRunner qr = initQueryRunner();
String sql = "select * from t_admin_user";
List<UserHou> list = qr.query(sql, new BeanListHandler<UserHou>(UserHou.class));
return list;
}
@Override
public Integer delete(String id) throws Exception {
// TODO Auto-generated method stub
QueryRunner qr = initQueryRunner();
String sql = "delete from t_admin_user where id = ?";
int i = qr.execute(sql, id);
return i;
}
@Override
public List<UserHou> quer(String nickname, String username) throws Exception {
// TODO Auto-generated method stub
QueryRunner qr = initQueryRunner();
String sql = "select * from t_admin_user";
boolean booId = false;
boolean booUsName = false;
if(!StringUtils.isEmpty(nickname)){
sql += " where nickname like '%"+nickname+"%'";
booId = true;
}
if(!StringUtils.isEmpty(username)){
if(booId){
sql += " and username like '%"+username+"%'";
}else{
sql += " where username like '%"+username+"%'";
}
booUsName = true;
}
List<UserHou> quer = qr.query(sql, new BeanListHandler<UserHou>(UserHou.class));
return quer;
}
@Override
public UserHou alterid(String id) throws Exception {
// TODO Auto-generated method stub
QueryRunner qr = initQueryRunner();
String sql = "select * from t_admin_user where id = ?";
UserHou alterId = qr.query(sql, new BeanHandler<UserHou>(UserHou.class),id);
return alterId;
}
@Override
public Integer alterUserHou(UserHou userHou) throws Exception {
// TODO Auto-generated method stub
QueryRunner qr = initQueryRunner();
String sql = "update t_admin_user set username = ?,nickname = ? where id = ?";
int i = qr.execute(sql, userHou.getNickname(),userHou.getUsername(),userHou.getId());
return i;
}
}
- 8.4后台代码（注册+登录）
- 8.1.4、service层
package com.service;
import java.util.List;
import com.bean.Role;
import com.bean.UserHou;
public interface UserHouService {
Integer register(String username,String userpwd,String password2,String nickname) throws Exception;
boolean username(String username);
boolean userpwd(String userpwd);
boolean password2(String password2);
boolean nickname(String nickname);
List<UserHou> list() throws Exception;
List<UserHou> quer(String id,String usernmae) throws Exception;
UserHou alterId(String id) throws Exception;
boolean alterUserHou(UserHou userHou) throws Exception;
boolean delete(String id) throws Exception;
}
- 8.5后台代码（注册+登录）
- 8.1.5、service.impl
package com.service.impl;
import java.util.List;
import com.bean.Role;
import com.bean.UserHou;
import com.dao.RoleDao;
import com.dao.UserHouDao;
import com.dao.impl.RoleDaoImpl;
import com.dao.impl.UserHouDaoImpl;
import com.service.UserHouService;
public class UserServiceHouImpl implements UserHouService{
private UserHouDao userHouDao = new UserHouDaoImpl();
private RoleDao roleDao = new RoleDaoImpl();
@Override
public Integer register(String username, String userpwd,String password2, String nickname) throws Exception {
// TODO Auto-generated method stub
if(userpwd.equals(password2)){
return userHouDao.register(username, userpwd, nickname);
}else{
return -1;
}
}
@Override
public boolean username(String username) {
// TODO Auto-generated method stub
if(username != null && !username.equals("")){
return true;
}
return false;
}
@Override
public boolean userpwd(String userpwd) {
// TODO Auto-generated method stub
if(userpwd != null && !userpwd.equals("")){
return true;
}
return false;
}
@Override
public boolean password2(String password2) {
// TODO Auto-generated method stub
if(password2 != null && !password2.equals("")){
return true;
}
return false;
}
@Override
public boolean nickname(String nickname) {
// TODO Auto-generated method stub
if(nickname != null && !nickname.equals("")){
return true;
}
return false;
}
@Override
public List<UserHou> list() throws Exception {
// TODO Auto-generated method stub
return userHouDao.list();
}
@Override
public boolean delete(String id) throws Exception {
// TODO Auto-generated method stub
int i = userHouDao.delete(id);
return i > 0;
}
@Override
public List<UserHou> quer(String id, String usernmae) throws Exception {
// TODO Auto-generated method stub
return userHouDao.quer(id, usernmae);
}
@Override
public UserHou alterId(String id) throws Exception {
// TODO Auto-generated method stub
return userHouDao.alterid(id);
}
@Override
public boolean alterUserHou(UserHou userHou) throws Exception {
// TODO Auto-generated method stub
int i = userHouDao.alterUserHou(userHou);
return i > 0;
}
}
- 8.6后台代码（注册+登录）
- 8.1.6、Filter(过滤器)
package com.web.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;
@WebFilter("/*")
public class CharsetFilter implements Filter{
@Override
public void destroy() {
// TODO Auto-generated method stub
}
@Override
public void doFilter(ServletRequest arg0, ServletResponse arg1, FilterChain arg2)
throws IOException, ServletException {
// TODO Auto-generated method stub
HttpServletRequest req = (HttpServletRequest) arg0;
HttpServletResponse resp = (HttpServletResponse) arg1;
req.setCharacterEncoding("utf-8");
resp.setCharacterEncoding("utf-8");
resp.setContentType("text/html;charset=utf-8");
arg2.doFilter(arg0, arg1);
}
@Override
public void init(FilterConfig arg0) throws ServletException {
// TODO Auto-generated method stub
}
}
- 8.7后台代码（注册+登录）
- 8.1.7、servlet层都继承BaseServlet一个类实现注册登录
- BaseServlet(代码)
package com.web.servlet;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class BaseServlet extends HttpServlet{
@Override
protected void service(HttpServletRequest arg0, HttpServletResponse arg1) throws ServletException, IOException {
// TODO Auto-generated method stub
String uri = arg0.getRequestURI();
String methodName = uri.substring(uri.lastIndexOf("/")+1);
try {
Method m = this.getClass().getDeclaredMethod(methodName, HttpServletRequest.class,HttpServletResponse.class);
m.invoke(this, arg0,arg1);
} catch (NoSuchMethodException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InvocationTargetException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
- 8.8后台代码（注册+登录）
- 8.1.8、servlet层的一个类注册和登录
package com.web.servlet.home;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import com.bean.UserHome;
import com.service.UserService;
import com.service.impl.UserServiceImpl;
import com.web.servlet.BaseServlet;
@WebServlet("/user/*")
public class UserServlet extends BaseServlet{
private UserService userSer = new UserServiceImpl();
public void register(HttpServletRequest req,HttpServletResponse resp){
try {
req.getRequestDispatcher("/WEB-INF/user/register.jsp").forward(req, resp);
} catch (ServletException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void registerPost(HttpServletRequest req,HttpServletResponse resp) throws ServletException, IOException{
String username = req.getParameter("username");
String userpassword = req.getParameter("userpassword");
String password2 = req.getParameter("password2");
String nickname = req.getParameter("nickname");
Integer icn = null;
PrintWriter out = resp.getWriter();
if(userSer.password2(password2)&&userSer.username(username) && userSer.userpassword(userpassword) && userSer.nickname(nickname)){
try {
icn = userSer.register(username, userpassword, password2, nickname);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if(icn > 0){
out.write("<script>");
out.write("alert('注册成功！');");
out.write("location.href='"+req.getContextPath()+"/user/login'");
out.write("script>");
out.close();
}else{
out.write("<script>");
out.write("alert('注册失败 二次密码不一致！');");
out.write("location.href='"+req.getContextPath()+"/user/register'");
out.write("script>");
out.close();
}
}else if(userSer.password2(password2)){
out.write("<script>");
out.write("alert('请输入：用户名，真实昵称，密码');");
out.write("location.href='"+req.getContextPath()+"/user/register'");
out.write("script>");
out.close();
}else if(userSer.username(username)){
out.write("<script>");
out.write("alert('请输入：真实姓名，二次验证码，密码');");
out.write("location.href='"+req.getContextPath()+"/user/register'");
out.write("script>");
out.close();
}else if(userSer.userpassword(userpassword)){
out.write("<script>");
out.write("alert('请输入：用户名，二次验证码，真实姓名');");
out.write("location.href='"+req.getContextPath()+"/user/register'");
out.write("script>");
out.close();
}else if(userSer.nickname(nickname)){
out.write("<script>");
out.write("alert('请输入：用户名，二次验证码，密码');");
out.write("location.href='"+req.getContextPath()+"/user/register'");
out.write("script>");
out.close();
}else{
out.write("<script>");
out.write("alert('注册的内容不能为空');");
out.write("location.href='"+req.getContextPath()+"/user/register'");
out.write("script>");
out.close();
}
}
public void login(HttpServletRequest req,HttpServletResponse resp){
try {
req.getRequestDispatcher("/WEB-INF/user/login.jsp").forward(req, resp);
} catch (ServletException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void loginPost(HttpServletRequest req,HttpServletResponse resp) throws IOException{
String username = req.getParameter("username");
String userpassword = req.getParameter("userpassword");
PrintWriter out = resp.getWriter();
if(userSer.username(username) && userSer.userpassword(userpassword)){
try {
UserHome user = userSer.login(username, userpassword);
if(user != null){
HttpSession hs = req.getSession();
hs.setAttribute("user", user);
out.write("<script>");
out.write("alert('登录成功！');");
out.write("location.href='"+req.getContextPath()+"/indexHome'");
out.write("script>");
out.close();
}else{
HttpSession hs = req.getSession();
hs.setAttribute("user", user);
out.write("<script>");
out.write("alert('账号或密码有误登录失败！');");
out.write("location.href='"+req.getContextPath()+"/user/login'");
out.write("script>");
out.close();
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}else if(userSer.username(username)){
out.write("<script>");
out.write("alert('请输入登录密码');");
out.write("location.href='"+req.getContextPath()+"/user/login'");
out.write("script>");
out.close();
}else if(userSer.userpassword(userpassword)){
out.write("<script>");
out.write("alert('请输入登录账号');");
out.write("location.href='"+req.getContextPath()+"/user/login'");
out.write("script>");
out.close();
}else{
out.write("<script>");
out.write("alert('登录信息不能为空！');");
out.write("location.href='"+req.getContextPath()+"/user/login'");
out.write("script>");
out.close();
}
}
public void logout(HttpServletRequest req,HttpServletResponse resp) throws IOException{
req.getSession().removeAttribute("user");
resp.sendRedirect(req.getContextPath()+"/indexHome");
}
public void indexHome(HttpServletRequest req,HttpServletResponse resp){
try {
req.getRequestDispatcher("/WEB-INF/indexHome.jsp").forward(req, resp);
} catch (ServletException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
- 8.9后台代码（注册+登录）
- 8.1.9、login.jsp页面（登录）
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<% request.setAttribute("rootPath",request.getContextPath()); %>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Documenttitle>
<link rel="stylesheet" href="${rootPath }/css/bootstrap.min.css">
<style>
h3{
font-size: 26px;
color: #eee;
margin: 0px auto 40px auto;
text-align: center;
font-weight: bold;
}
h3,label{
color: #fff;
}
body{
background-color: #2d3a4b;
}
.container{
width: 400px;
margin: 200px auto;
}
.capt-input{
width: 50%;
display: inline-block;
margin-left: 20px;
}
.captcha{
float: left;
width: 20%;
}
.captcha-input{
float: left;
}
.form-control{
background: transparent;
border:1px solid rgba(255, 255, 255, 0.1);
height: 50px;
color:#fff
}
.login input[type=submit]{
width: 100%;
background-color: #3a8ee6;
border-color: #3a8ee6;
color: #FFF;
font-weight: 500;
padding: 10px;
font-size: 14px;
border-radius: 4px;
}
style>
head>
<body>
<div class="container">
<h3 class="text-center">旅游管理系统 -- 登录入口h3>
<div class="login">
<form action="${rootPath }/user/loginPost" method="POST">
<div class="form-group">
<input type="text" name="username" class="form-control" id="exampleInputEmail1" placeholder="请输入用户名">
div>
<div class="form-group">
<input type="password" name="userpassword" class="form-control" id="exampleInputPassword1" placeholder="请输入密码">
div>
<div style="clear: both;">
<input type="submit" value="登录" class="btn">
div>
<div style="clear: both;padding-top:20px;">
<a href="${rootPath }/user/register">注册a>
<a style="float:right" href="${rootPath }">返回a>
div>
form>
div>
div>
body>
html>
- 8.10后台代码（注册+登录）
- 8.1.10、register.jsp页面（注册）
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<% request.setAttribute("rootPath",request.getContextPath()); %>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Documenttitle>
<link rel="stylesheet" href="${rootPath }/css/bootstrap.min.css">
<style>
h3{
font-size: 26px;
color: #eee;
margin: 0px auto 40px auto;
text-align: center;
font-weight: bold;
}
h3,label{
color: #fff;
}
body{
background-color: #2d3a4b;
}
.container{
width: 400px;
margin: 100px auto;
}
.capt-input{
width: 50%;
display: inline-block;
margin-left: 20px;
}
.captcha{
float: left;
width: 20%;
}
.captcha-input{
float: left;
}
.form-control{
background: transparent;
border:1px solid rgba(255, 255, 255, 0.1);
height: 50px;
color:#fff
}
.login input[type=submit]{
width: 100%;
background: #3a8ee6;
border-color: #3a8ee6;
color: #FFF;
font-weight: 500;
padding: 10px;
font-size: 14px;
border-radius: 4px;
}
style>
head>
<body>
<div class="container">
<h3 class="text-center">旅游管理系统 -- 注册h3>
<div class="login">
<form action="${pageContext.request.contextPath}/user/registerPost" method="post">
<div class="form-group">
<input type="text" name="username" class="form-control" id="exampleInputEmail1" placeholder="请输入用户名">
div>
<div class="form-group">
<input type="text" name="nickname" class="form-control" id="exampleInputEmail1" placeholder="请输入昵称">
div>
<div class="form-group">
<input type="password" name="userpassword" class="form-control" id="exampleInputPassword1" placeholder="请输入密码">
div>
<div class="form-group">
<input type="password" name="password2" class="form-control" id="exampleInputPassword1" placeholder="二次密码验证">
div>
<div style="clear: both;">
<input type="submit" value="注册" class="btn">
div>
<div style="clear: both;padding-top:20px;">
<a href="${rootPath }/user/login">登录a>
<a style="float:right" href="${rootPath }">返回a>
div>
form>
div>
div>
body>
html>
9、增删改查分页（后台）
- 9.1、后台代码 ,商家管理（增删改查分页）
- 9.1.1、bean(实体类)
package com.bean;
public class BuSi {
private Integer id;
private String sname;
private String contact;
private String address;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getSname() {
return sname;
}
public void setSname(String sname) {
this.sname = sname;
}
public String getContact() {
return contact;
}
public void setContact(String contact) {
this.contact = contact;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
}
- 9.2、后台代码 ,商家管理（增删改查分页）
- 9.1.2、page(分页)
package com.bean;
import java.util.ArrayList;
import java.util.List;
/**
* 该类的使用方法必须严格按照一下流程
* 1 计算得到 总记录数 rowCount
* 2 使用带参构造方法初始化,例如 Page page1 = new Page(3, 5, 57 );
* 3 设置当前页记录 page1.setList(list1 );
*
*
* @author Administrator
*
* @param <T>
*/
public class Page<T> {
/**
* 当前页码前的页码数
*/
private static final int BeforePageNumbCount = 4;
/**
* 当前页码后的页码数
*/
private static final int AfterPageNumbCount = 3;
/**
* 当前页码
*/
private int currPage;
/**
* 总记录数
*/
private int rowCount;
/**
* 每页记录数
* 该参数就是 limit arg1,arg2 中的第2个参数 arg2
*/
private int pageSize;
/**
* 总页数
*/
private int pageCount;
/**
* 前1页页码
*/
private int prevPageNumb;
/**
* 后一页页码
*/
private int nextPageNumb;
/**
* 当前页的第1个条记录的索引
* 该变量就是 limit arg1,arg2 的第一个参数 arg1
*/
private int currPageFirstRowIndex;
/**
* 当前页记录列表
*/
private List<T> list;
/**
* 页码列表 ， 即可显示的页码
*/
private List<Integer> pageButtonNumbs ;
/**
* 初始化，不考虑 列表记录数
*
* @param _currPage
* @param rowCount
*/
public Page(int _currPage, int _pageSize, int _rowCount){
this.pageSize = _pageSize;
this.rowCount = _rowCount;
// 计算总页数
this.pageCount = this.rowCount / this.pageSize;
if(this.rowCount% this.pageSize !=0 ){
this.pageCount ++ ;
}
// 修正当前页
this.currPage = _currPage ;
if(this.currPage< 1 ){
this.currPage = 1;
}
if(this.currPage > this.pageCount && this.pageCount > 0){
this.currPage = this.pageCount;
}
// 计算当前页第一条记录的索引
this.currPageFirstRowIndex = (this.currPage-1)* this.pageSize ;
// 计算并修正 前一页 和 后一页
this.prevPageNumb = this.currPage - 1;
this.nextPageNumb = this.currPage + 1;
if(this.prevPageNumb<1){
this.prevPageNumb = 1;
}
if(this.prevPageNumb>1 && this.prevPageNumb >= this.pageCount){
this.prevPageNumb = this.pageCount-1;
}
if(this.nextPageNumb <= 1 ){
this.nextPageNumb = 2;
}
if(this.nextPageNumb >1 && this.nextPageNumb > this.pageCount){
this.nextPageNumb = this.pageCount;
}
// 计算 页码按钮 列表
this.pageButtonNumbs = new ArrayList();
for( int i = this.currPage-4 ; i <= this.currPage+3 ;i++){
if(i<1 || i> this.pageCount ){
continue;
}
this.pageButtonNumbs.add(i);
}
}
public List<T> getList() {
return list;
}
public void setList(List<T> list) {
this.list = list;
}
public int getCurrPage() {
return currPage;
}
public int getRowCount() {
return rowCount;
}
public int getPageSize() {
return pageSize;
}
public int getPageCount() {
return pageCount;
}
public int getPrevPageNumb() {
return prevPageNumb;
}
public int getNextPageNumb() {
return nextPageNumb;
}
public List<Integer> getPageButtonNumbs() {
return pageButtonNumbs;
}
public int getCurrPageFirstRowIndex() {
return currPageFirstRowIndex;
}
}
- 9.3、后台代码 ,商家管理（增删改查分页）
- 9.1.3、dao层
package com.dao;
import java.util.List;
import com.bean.BuSi;
import com.bean.Category;
import com.bean.Page;
public interface BuSiDao {
Integer addBuSi(BuSi busi) throws Exception;
List<BuSi> lsitBuSi() throws Exception;
// List<BuSi> page(int currPage,int pageSize) throws Exception;
// Integer gerCount() throws Exception;
Page<BuSi> pageList(Page<BuSi> _page ) throws Exception;
int getCount() throws Exception;
Integer deleteBuSiId(String id) throws Exception;
BuSi alterBuSiId(String id) throws Exception;
Integer alterBuSi(BuSi busi) throws Exception;
}
- 9.4、后台代码 ,商家管理（增删改查分页）
- 9.1.4、dao.impl
package com.dao.impl;
import java.util.List;
import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanHandler;
import org.apache.commons.dbutils.handlers.BeanListHandler;
import org.apache.commons.dbutils.handlers.ScalarHandler;
import com.bean.BuSi;
import com.bean.Page;
import com.dao.BuSiDao;
public class BuSiDaoImpl extends BaesDao implements BuSiDao{
@Override
public Integer addBuSi(BuSi busi) throws Exception {
// TODO Auto-generated method stub
QueryRunner qr = initQueryRunner();
String sql = "insert into busi(sname,contact,address) values (?,?,?)";
int i = qr.execute(sql, busi.getSname(),busi.getContact(),busi.getAddress());
return i;
}
@Override
public Integer deleteBuSiId(String id) throws Exception {
// TODO Auto-generated method stub
QueryRunner qr = initQueryRunner();
String sql = "delete from busi where id = ?";
int i = qr.execute(sql, id);
return i;
}
@Override
public BuSi alterBuSiId(String id) throws Exception {
// TODO Auto-generated method stub
QueryRunner qr = initQueryRunner();
String sql = "select * from busi where id = ?";
BuSi i = qr.query(sql, new BeanHandler<BuSi>(BuSi.class),id);
return i;
}
@Override
public Integer alterBuSi(BuSi busi) throws Exception {
// TODO Auto-generated method stub
QueryRunner qr = initQueryRunner();
String sql = "update busi set sname = ?,contact = ?,address = ? where id = ?";
int i = qr.execute(sql, busi.getSname(),busi.getContact(),busi.getAddress(),busi.getId());
return i;
}
@Override
public List<BuSi> lsitBuSi() throws Exception {
// TODO Auto-generated method stub
QueryRunner qr = initQueryRunner();
String sql = "select * from busi";
List<BuSi> listCategory = qr.query(sql, new BeanListHandler<BuSi>(BuSi.class));
return listCategory;
}
@Override
public Page<BuSi> pageList(Page<BuSi> _page) throws Exception {
// TODO Auto-generated method stub
QueryRunner qr1 = initQueryRunner();
// limit arg1, arg2 :
int limitArg1 = _page.getCurrPageFirstRowIndex();
int limitArg2 = _page.getPageSize();
// 2 写 读取 category 列表的 sql
String sql = "select * from busi limit "+ limitArg1 + ","+ limitArg2 ;
// 3 执行 sql 返回 list
BeanListHandler<BuSi> rsh = new BeanListHandler<>(BuSi.class);
List<BuSi> list = qr1.query(sql, rsh);
// list 放到参数 _page 里面
_page.setList(list);
return _page;
}
@Override
public int getCount() throws Exception {
// TODO Auto-generated method stub
// 1 获取 QueryRunner 对象
QueryRunner qr1 = initQueryRunner();
// 2 写 读取 category 列表的 sql
String sql = "select count(1) from busi ";
// 3 执行 sql 返回 list
ScalarHandler<Long> rsh = new ScalarHandler<>();
int cnt1 = qr1.query(sql, rsh).intValue();
return cnt1;
}
}
- 9.4、后台代码 ,商家管理（增删改查分页）
- 9.1.4、service
package com.service;
import java.util.List;
import com.bean.BuSi;
import com.bean.Page;
public interface BuSiService {
boolean addBuSi(BuSi busi) throws Exception;
List<BuSi> listBuSi() throws Exception;
// List<BuSi> page(int currPage,int pageSize) throws Exception;
// Integer getCount() throws Exception;
Page<BuSi> page(int currPage, int pageSize ) throws Exception ;
boolean deleteBuSi(String id) throws Exception;
BuSi alterBuSiId(String id) throws Exception;
boolean alterBuSi(BuSi buSi) throws Exception;
}
- 9.5、后台代码 ,商家管理（增删改查分页）
- 9.1.5、service.impl
package com.service.impl;
import java.util.List;
import com.bean.BuSi;
import com.bean.Category;
import com.bean.Page;
import com.dao.BuSiDao;
import com.dao.impl.BuSiDaoImpl;
import com.service.BuSiService;
public class BuSiServiceImpl implements BuSiService{
private BuSiDao buSiDao = new BuSiDaoImpl();
@Override
public boolean addBuSi(BuSi busi) throws Exception {
// TODO Auto-generated method stub
int i = buSiDao.addBuSi(busi);
return i > 0;
}
// @Override
// public List<BuSi> page(int currPage, int pageSize) throws Exception {
// // TODO Auto-generated method stub
// return buSiDao.page(currPage, pageSize);
// }
@Override
public boolean deleteBuSi(String id) throws Exception {
// TODO Auto-generated method stub
int i = buSiDao.deleteBuSiId(id);
return i > 0;
}
@Override
public BuSi alterBuSiId(String id) throws Exception {
// TODO Auto-generated method stub
return buSiDao.alterBuSiId(id);
}
@Override
public boolean alterBuSi(BuSi buSi) throws Exception {
// TODO Auto-generated method stub
int i = buSiDao.alterBuSi(buSi);
return i > 0;
}
@Override
public List<BuSi> listBuSi() throws Exception {
// TODO Auto-generated method stub
return buSiDao.lsitBuSi();
}
@Override
public Page<BuSi> page(int currPage, int pageSize) throws Exception {
// TODO Auto-generated method stub
// 1 获取总记录数
int rowCount = buSiDao.getCount();
// 2 初始化 Page 对象
// page1 对象里面只缺 list 变量
Page<BuSi> page1 = new Page(currPage,pageSize, rowCount);
// 3 获取 当前页记录数
page1 = buSiDao.pageList( page1 );
return page1;
}
}
- 9.6、后台代码 ,商家管理（增删改查分页）
- 9.1.6、servlet层
package com.web.servlet;
import java.io.IOException;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.bean.BuSi;
import com.bean.Category;
import com.bean.Page;
import com.service.BuSiService;
import com.service.impl.BuSiServiceImpl;
@WebServlet("/buSi/*")
public class BuSiServlet extends BaseServlet{
private BuSiService buSiService = new BuSiServiceImpl();
public void add(HttpServletRequest req,HttpServletResponse resp){
try {
req.getRequestDispatcher("/WEB-INF/busi/add.jsp").forward(req, resp);
} catch (ServletException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void addPost(HttpServletRequest req,HttpServletResponse resp){
String sname = req.getParameter("sname");
String contact = req.getParameter("contact");
String address = req.getParameter("address");
BuSi buSi = new BuSi();
buSi.setSname(sname);
buSi.setContact(contact);
buSi.setAddress(address);
try {
if(buSiService.addBuSi(buSi)){
resp.sendRedirect(req.getContextPath()+"/buSi/page");
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void alter(HttpServletRequest req,HttpServletResponse resp){
String id = req.getParameter("id");
try {
BuSi buSi = buSiService.alterBuSiId(id);
req.setAttribute("buSi", buSi);
req.getRequestDispatcher("/WEB-INF/busi/edit.jsp").forward(req, resp);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void alterPost(HttpServletRequest req,HttpServletResponse resp){
String id = req.getParameter("id");
String sname = req.getParameter("sname");
String contact = req.getParameter("contact");
String address = req.getParameter("address");
BuSi buSi = new BuSi();
buSi.setId(Integer.valueOf(id));
buSi.setSname(sname);
buSi.setContact(contact);
buSi.setAddress(address);
try {
if(buSiService.alterBuSi(buSi)){
resp.sendRedirect(req.getContextPath()+"/buSi/page");
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void delete(HttpServletRequest req,HttpServletResponse resp){
String id = req.getParameter("id");
try {
if(buSiService.deleteBuSi(id)){
resp.sendRedirect(req.getContextPath()+"/buSi/page");
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void page(HttpServletRequest req,HttpServletResponse resp){
String strCurrPage = req.getParameter("currPage");
int currPage = 1;
if(strCurrPage !=null && !strCurrPage.equals("")){
currPage = Integer.valueOf(strCurrPage);
}
try {
int PageSize = 3;
Page<BuSi> page1 = buSiService.page(currPage, PageSize);
req.setAttribute("page1", page1);
req.getRequestDispatcher("/WEB-INF/busi/list.jsp").forward(req, resp);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
- 9.7、后台代码 ,商家管理（增删改查分页）
- 9.1.7、add.jsp(添加页面)
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
DOCTYPE html>
<html lang="en">
<head>
<%
request.setAttribute("APP_PATH", request.getContextPath());
%>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Documenttitle>
<link rel="stylesheet" href="${APP_PATH}/bootstrap/css/bootstrap.min.css">
<script src="${APP_PATH}/bootstrap/js/jquery-2.1.0.min.js">script>
<script src="${APP_PATH}/bootstrap/js/bootstrap.min.js">script>
<style type="text/css">
.cus-container{
width: 600px;
}
style>
head>
<body>
<div class="container cus-container">
<h3 class="text-center">添加商家h3>
<form action="${APP_PATH}/buSi/addPost" method="post">
<div class="form-group">
<label for="user">商家名称：label>
<input type="text" class="form-control" name="sname" placeholder="请输入商家名称">
div>
<div class="form-group">
<label for="pass">联系电话：label>
<input type="text" class="form-control" name="contact" placeholder="请输入联系电话">
div>
<div class="form-group">
<label for="pass">联系地址：label>
<textarea class="form-control" rows="10" name="address">textarea>
div>
<div class="text-center">
<input type="submit" class="btn btn-primary" value="提交">
<button type="reset" class="btn btn-default">重置button>
div>
form>
div>
body>
html>
- 9.8、后台代码 ,商家管理（增删改查分页）
- 9.1.8、edit.jsp(修改页面)
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
DOCTYPE html>
<html lang="en">
<head>
<%
request.setAttribute("APP_PATH", request.getContextPath());
%>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Documenttitle>
<link rel="stylesheet" href="${APP_PATH}/bootstrap/css/bootstrap.min.css">
<script src="${APP_PATH}/bootstrap/js/jquery-2.1.0.min.js">script>
<script src="${APP_PATH}/bootstrap/js/bootstrap.min.js">script>
head>
<body>
<div class="container cus-container">
<h3 class="text-center">修改商家h3>
<form action="${APP_PATH}/buSi/alterPost" method="post">
<input type="hidden" class="form-control" name="id" value="${buSi.id }">
<div class="form-group">
<label for="user">修改商家名称：label>
<input type="text" class="form-control" name="sname" value="${buSi.sname }">
div>
<div class="form-group">
<label for="pass">修改联系电话：label>
<input type="text" class="form-control" name="contact" value="${buSi.contact }">
div>
<div class="form-group">
<label for="pass">修改联系地址：label>
<textarea class="form-control" rows="10" name="address" >${buSi.address }textarea>
div>
<div class="text-center">
<input type="submit" class="btn btn-primary" value="保存">
<button type="reset" class="btn btn-default">重置button>
div>
form>
div>
body>
html>
- 9.10、后台代码 ,商家管理（增删改查分页）
- 9.1.10、list.jsp(展示页面)
<%@ 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>
<html lang="en">
<head>
<%
request.setAttribute("APP_PATH", request.getContextPath());
%>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Documenttitle>
<link rel="stylesheet" href="${APP_PATH}/bootstrap/css/bootstrap.min.css">
<style>
.cus-container{
width: 100%;
}
style>
head>
<body>
<div class="container cus-container">
<h3 class="text-center">商家列表h3>
<div>
<div style="float: right;margin: 10px 0px;">
<a class="btn btn-primary" href="${APP_PATH}/buSi/add">添加商家a>
<a class="btn btn-primary" href="" id="delSelected">删除选中a>
div>
div>
<table class="table table-bordered clearfix">
<tr class="success">
<th><input type="checkbox" id="firstCb">th>
<th>商家编号th>
<th>商家名称th>
<th>联系电话th>
<th>联系地址th>
<th>操作th>
tr>
<c:forEach items="${page1.list}" var="bs">
<tr>
<td><input type="checkbox" name="gid" value="">td>
<td>${bs.id }td>
<td>${bs.sname }td>
<td>${bs.contact }td>
<td>${bs.address }td>
<td><a class="btn btn-default btn-sm" href="${APP_PATH }/buSi/alter?id=${bs.id }">修改a>
<a class="btn btn-default btn-sm" href="${APP_PATH }/buSi/delete?id=${bs.id }">删除a>td>
tr>
c:forEach>
table>
<div>
<nav style="float: left;">
<ul class="pagination">
<li>
<a href="?currPage=${page1.prevPageNumb }" aria-label="Previous">
<span aria-hidden="true">«span>
a>
li>
<c:forEach items="${page1.pageButtonNumbs }" var ="numb">
<c:if test="${ numb != page1.currPage }"> <li><a href="?currPage=${ numb }"> ${numb }a>li> c:if>
<c:if test="${ numb == page1.currPage }"> <li><a style="color: red"> ${numb }a>li> c:if>
c:forEach>
<li>
<a href="?currPage=${page1.nextPageNumb }" aria-label="Next">
<span aria-hidden="true">»span>
a>
li>
ul>
nav>
<div style="float: right;margin-top: 25px;">
<span>共100条记录，分20页显示span>
div>
div>
div>
body>
html>
10、后台代码 ,文件上传（图片上传）
- 10.1、utils， FileUploadUtils类
package com.utils;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
public class FileUploadUtils {
/**
* 解析文件上传表单的request
*
* 1 普通控件 name 就是 key
* 2 文件控件 name_url 是 文件的访问地址
* name_srcFileName 是文件的原名
*
* @param req
* @param charset
* @return
*/
public static Map<String, String> parseUploadRequest(HttpServletRequest req, String charset) {
// 初始化 返回 map1 ，用于存储所有的 值
Map<String,String> map1 = new HashMap();
// 获取 ROOT 根文件夹
String ROOTPath = getROOTPath();
// 定义 存储 根文件夹
String saveFolder = "upload";
String saveDirPath = ROOTPath + "\\"+ saveFolder ;
// dir 的 路径
String dirUrl = "/"+saveFolder+"/";
try {
req.setCharacterEncoding(charset);
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// 3 解析 request 对象，得到 List<FileItem> fiList
DiskFileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload fileUpload = new ServletFileUpload(factory);
try {
List<FileItem> fiList = fileUpload.parseRequest(req);
for (FileItem fi1 : fiList) {
// 如果这是一个 普通控件的话
if (fi1.isFormField()) {
// fname == route_id
String fname = fi1.getFieldName();
// fvalue == 1
String fvalue = fi1.getString( charset );
map1.put(fname, fvalue) ;
}
// 如果这是一个 file 控件的话
else {
// 控件 name 属性
String fname = fi1.getFieldName();
// 原文件名
String srcFileName = fi1.getName();
String fileUrl = dirUrl+ srcFileName ;
map1.put(fname+"_url", fileUrl );
map1.put(fname+"_srcFileName" , srcFileName ) ;
// 获得输入流
InputStream is = fi1.getInputStream();
String savePath = saveDirPath + "\\" + srcFileName;
FileOutputStream os1 = new FileOutputStream(savePath);
// 输入流 传递到 输出流
byte[] bs1 = new byte[10240];
while (true) {
int len = is.read(bs1, 0, bs1.length);
if (len < 0) {
break;
}
os1.write(bs1, 0, len);
}
os1.close();
is.close();
}
}
} catch (FileUploadException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return map1;
}
/**
* 获取 tomcat 的 ROOT 项目的根路径
* @return
*/
private static String getROOTPath(){
// 1 获得 ROOT项目的根路径 rootPath
String classesPath = FileUploadUtils.class.getResource("/").getPath();
File f1 = new File(classesPath);
// 获得 tomcat 的 webapps 文件夹的路径 webappsPath
String webappsPath = f1.getParentFile().getParentFile().getParentFile().getAbsolutePath();
String rootPath = webappsPath +"\\ROOT";
return rootPath;
}
}
11、总结
11.1、旅游管理系统项目的功能代码发出了一部分，整个此项目链接已发送：旅游管理系统百度网盘（提取码：qm11）
带数据库