Java Web Project Book Management System

Others 2022-04-20 08:25:44 views: 0

Copyright statement: This article is an original article by the blogger and may not be reproduced without the permission of the blogger

If you need to communicate, you can add Q group communication: 801498570

2019.5.22 update

I didn't expect to see a lot of people watching this project, but I'm not writing articles on CSDN now,

Blog address link   ←This is my blog address link 

GitHub address link ←This is my github address link

It contains the process and notes of my learning Java. I hope everyone can communicate with each other.

Since you have just finished learning JSP and Servlet, before learning the framework, you will consolidate the previous knowledge, so I wrote a framework-free version of the Library system

Address: The basic code of the project address  has been completed (the front end is a bit ugly because it was written by myself), and there are still some optimizations and miscellaneous items. Welcome everyone to pay attention to star and fork! study together

If there are any places that are not well written, please advise

In addition, I recently prepared to learn the SSM framework and asked for a tutorial recommendation~~ 

put the project below

library management system

Project Introduction

  • IDE: Intellij IDEA
  • Design pattern used: MVC
  • Language: Java
  • Database: MySQL
  • Web server: Tomcat
  • Action: Servlet
  • View: Jsp
  • Version Control: Git
  • CSS Framework: BootStrap
  • JavaScript Framework: jQuery
  • The project is small and not using maven
  • No Spring Spring-MVC Mybatis involved

The main function

  • User login and logout
  • Borrowing and returning books
  • Addition and editing of books
  • View Book List
  • Book Details
  • Book Checkout\Return Log

Later functions will continue to add To Be Continued

Ready to work

1.jar package import

  • Servlet
  • JDBC

2. Build the package

  • Dao
  • useful
  • Entity
  • Action(Servlet)

Below are some screenshots

(The homepage image comes from Apple)

put some code below

login/logout servlet

package Action;

import Dao.UserDao;
import Entity.User;

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 java.io.IOException;
import java.io.PrintWriter;

public class LoginAction extends HttpServlet {
    UserDao udao = new UserDao();

    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String action = request.getParameter("action");
        if (action.equals("login")) {
            this.login(request, response);
        }
        else if(action.equals("logout")){
            this.logout(request, response);
        }
    }
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doPost(request, response);
    }
    private void login(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String username = null;
        String password = null;
        PrintWriter out = response.getWriter();
        HttpSession session = request.getSession();
        username = request.getParameter("username");
        password = request.getParameter("password");
        User user = new User();
        user.setUsername(username);
        user.setPassword(password);
        String result = udao.login(user);
        if(result.equals("true")){
            session.setAttribute("adminname", user.getName());
            request.getRequestDispatcher("/main.jsp").forward(request, response);
        }
        else{
            out.write(result);
        }
    }

    private void logout(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{
        HttpSession session = request.getSession();
        session.setMaxInactiveInterval(1);
        response.sendRedirect("/Library/index.jsp");
    }

}

Database (MySQL)

CREATE DATABASE  IF NOT EXISTS `library` /*!40100 DEFAULT CHARACTER SET utf8 */;
USE `library`;
-- MySQL dump 10.13  Distrib 5.7.17, for Win64 (x86_64)
--
-- Host: 127.0.0.1    Database: library
-- ------------------------------------------------------
-- Server version	5.7.20-log

/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8 */;
/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
/*!40103 SET TIME_ZONE='+00:00' */;
/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;

--
-- Table structure for table `book`
--

DROP TABLE IF EXISTS `book`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `book` (
  `id` varchar(10) NOT NULL COMMENT '书本ID',
  `bookname` varchar(30) DEFAULT NULL COMMENT '书本名称',
  `author` varchar(20) DEFAULT NULL COMMENT '书本作者',
  `publisher` varchar(30) DEFAULT NULL COMMENT '出版社',
  `price` int(11) DEFAULT NULL COMMENT '书本价格',
  `category` varchar(10) DEFAULT NULL COMMENT '书本类目',
  `store` int(11) DEFAULT NULL,
  `bookdesc` varchar(1000) DEFAULT NULL,
  `location` varchar(45) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='书籍数据库';
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `book`
--

LOCK TABLES `book` WRITE;
/*!40000 ALTER TABLE `book` DISABLE KEYS */;
INSERT INTO `book` VALUES ('000001','Java核心技术','凯 S. 霍斯特曼','机械工业出版社',119,'编程类',20,'《JAVA核心技术》（第8版）是2011年电子工业出版社出版的图书，作者是昊斯特曼、Gary Cornell。本书针对JavaSE6平台进行了全面更新，囊括了Java平台标准版(JavaSE/J2SE)的全部基础知识，提供了大量完整且具有实际意义的应用实例。','3'),('000002','C++PrimaerPlus','Stephen Prata','中国邮电出版社',99,'编程类',15,'《JAVA核心技术》（第8版）是2011年电子工业出版社出版的图书，作者是昊斯特曼、Gary Cornell。本书针对JavaSE6平台进行了全面更新，囊括了Java平台标准版(JavaSE/J2SE)的全部基础知识，提供了大量完整且具有实际意义的应用实例。','3'),('000003','算法竞赛入门经典','刘汝佳','清华大学出版社',50,'编程类',15,'《JAVA核心技术》（第8版）是2011年电子工业出版社出版的图书，作者是昊斯特曼、Gary Cornell。本书针对JavaSE6平台进行了全面更新，囊括了Java平台标准版(JavaSE/J2SE)的全部基础知识，提供了大量完整且具有实际意义的应用实例。','3'),('000004','概率论与数理统计','盛骤 谢式千 潘承毅','高等教育出版社',38,'数学类',15,'《JAVA核心技术》（第8版）是2011年电子工业出版社出版的图书，作者是昊斯特曼、Gary Cornell。本书针对JavaSE6平台进行了全面更新，囊括了Java平台标准版(JavaSE/J2SE)的全部基础知识，提供了大量完整且具有实际意义的应用实例。','1'),('000005','数据结构(C语言版)','严蔚敏 吴伟民','清华大学出版社',29,'编程类',8,'《JAVA核心技术》（第8版）是2011年电子工业出版社出版的图书，作者是昊斯特曼、Gary Cornell。本书针对JavaSE6平台进行了全面更新，囊括了Java平台标准版(JavaSE/J2SE)的全部基础知识，提供了大量完整且具有实际意义的应用实例。','3');
/*!40000 ALTER TABLE `book` ENABLE KEYS */;
UNLOCK TABLES;

--
-- Table structure for table `iolog`
--

DROP TABLE IF EXISTS `iolog`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `iolog` (
  `bookid` varchar(10) DEFAULT NULL,
  `readerid` varchar(45) DEFAULT NULL,
  `service` int(11) DEFAULT NULL,
  `borrowtime` varchar(45) NOT NULL,
  `borrowday` int(11) DEFAULT NULL,
  `complete` int(11) DEFAULT NULL,
  PRIMARY KEY (`borrowtime`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `iolog`
--

LOCK TABLES `iolog` WRITE;
/*!40000 ALTER TABLE `iolog` DISABLE KEYS */;
INSERT INTO `iolog` VALUES ('000001','1',-1,'2018年01月18日 17时46分24秒',14,1),('000001','1',-1,'2018年01月18日 17时46分37秒',7,1),('000001','1',1,'2018年01月18日 17时48分43秒',NULL,1),('000001','1',1,'2018年01月18日 17时49分03秒',NULL,1);
/*!40000 ALTER TABLE `iolog` ENABLE KEYS */;
UNLOCK TABLES;

--
-- Table structure for table `reader`
--

DROP TABLE IF EXISTS `reader`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `reader` (
  `username` varchar(50) NOT NULL COMMENT '读者用户名',
  `password` varchar(45) DEFAULT NULL COMMENT '读者密码',
  `name` varchar(45) DEFAULT NULL COMMENT '读者姓名',
  `sex` varchar(45) DEFAULT NULL COMMENT '读者性别',
  `status` int(11) DEFAULT NULL COMMENT '读者状态(1.正常 -1.黑名单)',
  `mail` varchar(45) DEFAULT NULL COMMENT '读者邮箱',
  `tel` varchar(45) DEFAULT NULL COMMENT '读者电话',
  `grade` int(11) DEFAULT '-1' COMMENT '读者年级',
  `classnum` int(11) DEFAULT '-1' COMMENT '读者班级',
  PRIMARY KEY (`username`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='读者表';
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `reader`
--

LOCK TABLES `reader` WRITE;
/*!40000 ALTER TABLE `reader` DISABLE KEYS */;
INSERT INTO `reader` VALUES ('1','123456','测试','测试',1,'测试','测试',1,1);
/*!40000 ALTER TABLE `reader` ENABLE KEYS */;
UNLOCK TABLES;

--
-- Table structure for table `tempadd`
--

DROP TABLE IF EXISTS `tempadd`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `tempadd` (
  `id` varchar(10) NOT NULL,
  `bookname` varchar(30) DEFAULT NULL COMMENT '书本名称',
  `author` varchar(20) DEFAULT NULL COMMENT '书本作者',
  `publisher` varchar(30) DEFAULT NULL COMMENT '出版社',
  `price` int(11) DEFAULT NULL COMMENT '书本价格',
  `category` varchar(10) DEFAULT NULL COMMENT '书本类目',
  `store` int(11) DEFAULT NULL,
  `bookdesc` varchar(100) DEFAULT NULL,
  `location` varchar(45) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `tempadd`
--

LOCK TABLES `tempadd` WRITE;
/*!40000 ALTER TABLE `tempadd` DISABLE KEYS */;
/*!40000 ALTER TABLE `tempadd` ENABLE KEYS */;
UNLOCK TABLES;

--
-- Table structure for table `user`
--

DROP TABLE IF EXISTS `user`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `user` (
  `user` varchar(15) NOT NULL COMMENT '用户名',
  `password` varchar(25) DEFAULT NULL COMMENT '用户密码',
  `name` varchar(20) DEFAULT NULL COMMENT '用户真实姓名',
  `sex` varchar(5) DEFAULT NULL COMMENT '用户性别',
  `department` varchar(45) DEFAULT NULL COMMENT '用户部门',
  `tel` varchar(20) DEFAULT NULL COMMENT '用户电话',
  PRIMARY KEY (`user`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `user`
--

LOCK TABLES `user` WRITE;
/*!40000 ALTER TABLE `user` DISABLE KEYS */;
INSERT INTO `user` VALUES ('123456','123456','测试','男','图书馆','12345678901');
/*!40000 ALTER TABLE `user` ENABLE KEYS */;
UNLOCK TABLES;

--
-- Dumping events for database 'library'
--

--
-- Dumping routines for database 'library'
--
/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;

/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;

-- Dump completed on 2018-01-18 21:05:06

JavaScript asynchronous access to servlet (used to determine whether the number exists during the input process)

    var xmlHttp=false;
    function createXMLHttpRequest()
    {
        if (window.ActiveXObject)  //在IE浏览器中创建XMLHttpRequest对象
        {
            try{
                xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
            }
            catch(e){
                try{
                    xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
                }
                catch(ee){
                    xmlHttp=false;
                }
            }
        }
        else if (window.XMLHttpRequest) //在非IE浏览器中创建XMLHttpRequest对象
        {
            try{
                xmlHttp = new XMLHttpRequest();
            }
            catch(e){
                xmlHttp=false;
            }
        }
    }

function bookcheck(){
        var bookid = document.getElementById("bookid").value;
        createXMLHttpRequest();   //调用创建XMLHttpRequest对象的方法
        xmlHttp.onreadystatechange=bookcheckResult;   //设置回调函数
        var url="BookAction?action=querybookbyid&next=borrowcheck&id=" + bookid;
        xmlHttp.open("POST",url,true);      //向服务器端发送请求
        xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded;charset=utf8");
        xmlHttp.send(null);
    }
	
	function bookcheckResult(){
        var bookname = document.getElementById("bookname");
        var bookauthor = document.getElementById("bookauthor");
        var bookpublisher = document.getElementById("bookpublisher");
		var bookremain = document.getElementById("bookremain");
        if (xmlHttp.readyState==4 && xmlHttp.status==200){
            var data= xmlHttp.responseText;
            var parameters=data.split("||");
            var getbookname = parameters[0];
            var getbookauthor = parameters[1];
            var getbookpublisher = parameters[2];
			var getbookremain = parameters[3];
            if(getbookname == "null"){
                bookname.value = "未知";
                bookauthor.value = "未知";
                bookpublisher.value = "未知";
				bookremain.value = "未知";
				document.getElementById("bookidcheck").innerHTML = "*请输入正确编号";
            }
			else{
                bookname.value = getbookname;
                bookauthor.value = getbookauthor;
                bookpublisher.value = getbookpublisher;
				bookremain.value = getbookremain;
				document.getElementById("bookidcheck").innerHTML = "";
				document.getElementById("bookidcheck").innerHTML = "";
            }
			if(parseInt(getbookremain) == 0 && getbookname != "null"){
				document.getElementById("booknumcheck").innerHTML = "*该书已全部借出";
			}
			else{
				document.getElementById("booknumcheck").innerHTML = "";
			}
        }
    }

(The homepage image comes from Apple)

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