荐使用IDEA搭建一个简单的JavaWeb图书管理项目（详细步骤指导、提供源码）

程序员文章站 2022-06-13 23:42:16

一、开发环境和项目结构二、项目配置三、代码编写步骤1.编写数据库代码2.编写工具类3.编写实体类4.编写数据处理层5.编写业务逻辑层6.编写控制台程序（C/S）7.编写业务控制层（B/S）8.编写过滤器9.编写前端页面...

写在前边：
这个一个JavaWeb项目的基础实战的分享，当然如果可以你们可以拿走当作业（前提你们的作业要求并不高）
本项目只实现了基本的增删改查，略懂Java基础也可以拿走根据需要修改，也算提供了一个项目结构组织的框架，可以作为参考。本项目暂时只实现了基础的增删改查一套，模糊查询一个，还有分页查询。这些内容也算是开发JavaWeb项目开发的核心内容，其它的可以根据需要自己完善。

源码下载 ↓ ↓ ↓

项目压缩包下载 — 百度网盘提取码: 9vh7
项目压缩包下载 — CSDN
GitHub下载

一、开发环境和项目结构

开发环境

JDK 8

MySQL 5.7

Tomcat 9.0

IDEA 2018

推荐使用当前或更高开发环境

项目结构
荐
使用IDEA搭建一个简单的JavaWeb图书管理项目（详细步骤指导、提供源码）

二、项目配置

emmmm，有点长我单独写了一篇博客，需要的可以去看一下
https://blog.csdn.net/weixin_44580492/article/details/107335967

三、代码编写步骤

开始编写之前，推荐将项目结构中的包先构建好

1~6步属于C/S项目

1~9步属于B/S项目，第6步除外，可省略不写

1.编写数据库代码

创建名为 book 的数据库

create database book;

创建名为 book 的数据表

CREATE TABLE `book`  (
  `BOOK_ID` int(50) NOT NULL AUTO_INCREMENT,
  `BOOK_NAME` varchar(100)  NOT NULL,
  `ISBN` varchar(100),
  `CATEGORY` varchar(100),
  PRIMARY KEY (`BOOK_ID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

2.编写工具类

在util包下操作

编写数据库连接配置文件 db-config.properties

jdbc.url=jdbc:mysql://localhost:3306/book?useUnicode=true&characterEncoding=utf-8
jdbc.username=root
jdbc.password=123456
jdbc.driver=com.mysql.jdbc.Driver

编写数据库连接类 DBUtil

package com.jmp.util;

import java.sql.*;
import java.util.ResourceBundle;

/**
 * @author JYH
 * @version 1.0
 * @date 2020/6/19 23:53
 */
public class DBUtil {

    //数据库连接地址
    private static final String URL;
    //数据库用户名
    private static final String USERNAME;
    //数据库密码
    private static final String PASSWORD;
    //加载数据库连接驱动程序
    private static final String DRIVER;

    private DBUtil(){}

    //加载数据库配置文件
    private static ResourceBundle rb = ResourceBundle.getBundle("com.jmp.util.db-config");

    //加载数据库配置文件中的连接信息
    static{
        URL = rb.getString("jdbc.url");
        USERNAME = rb.getString("jdbc.username");
        PASSWORD = rb.getString("jdbc.password");
        DRIVER = rb.getString("jdbc.driver");
        try {
            Class.forName(DRIVER);
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
    }

    //创建数据库连接
    public static Connection getConnection() {
        Connection con = null;
        try {
            con = DriverManager.getConnection(URL,USERNAME,PASSWORD);
//            System.out.println("数据库连接成功。");
        } catch (SQLException throwables) {
            throwables.printStackTrace();
            System.out.println("数据库连接失败，请检查数据库地址、用户名、密码是否存在错误！！！");
        }
        return con;
    }

    //关闭数据库连接
    public static void close(ResultSet rs, Statement stat,Connection con) throws SQLException {
        if(rs != null){
            rs.close();
        }if(stat != null){
            rs.close();
        }if(con != null){
            rs.close();
        }
        System.out.println("数据库连接已关闭！");
    }

    //测试数据库连接
    public static void main(String[] args) {
        System.out.println(DBUtil.getConnection());
    }
}

编写完DBUtil类后我们可以先运行一下 main 方法，看数据库能否连接成功。

编写分页工具类 PageBean

package com.jmp.util;

/**
 * 分页工具类
 * @author JYH
 * @version 1.0
 * @date 2020/6/23 11:42
 */

public class PageBean {

    private int page;// 页码

    private int rows;// 页大小

    private int total;// 总记录数

    private boolean pagination = true;// 是否分页

    public PageBean() {
        super();
    }

    public int getPage() {
        return page;
    }

    public void setPage(int page) {
        this.page = page;
    }

    public int getRows() {
        return rows;
    }

    public void setRows(int rows) {
        this.rows = rows;
    }

    public int getTotal() {
        return total;
    }

    public void setTotal(int total) {
        this.total = total;
    }

    public void setTotal(String total) {
        this.total = Integer.parseInt(total);
    }

    public boolean isPagination() {
        return pagination;
    }

    public void setPagination(boolean pagination) {
        this.pagination = pagination;
    }

    /**
     * 获得起始记录的下标
     *
     * @return
     */
    public int getStartIndex() {
        return (this.page - 1) * this.rows;
    }

    @Override
    public String toString() {
        return "PageBean [page=" + page + ", rows=" + rows + ", total=" + total + ", pagination=" + pagination + "]";
    }
}

3.编写实体类

在pojo包下操作

编写图书实体类 Book

package com.jmp.pojo;

/**
 * @author JYH
 * @version 1.0
 * @date 2020/6/19 23:50
 */

public class Book {
    private int book_id;
    private String book_name;
    private String isbn;
    private  String category;

    public Book() {
    }

    public Book(int book_id, String book_name, String isbn, String category) {
        this.book_id = book_id;
        this.book_name = book_name;
        this.isbn = isbn;
        this.category = category;
    }

    public int getBook_id() {
        return book_id;
    }

    public void setBook_id(int book_id) {
        this.book_id = book_id;
    }

    public String getBook_name() {
        return book_name;
    }

    public void setBook_name(String book_name) {
        this.book_name = book_name;
    }

    public String getIsbn() {
        return isbn;
    }

    public void setIsbn(String isbn) {
        this.isbn = isbn;
    }

    public String getCategory() {
        return category;
    }

    public void setCategory(String category) {
        this.category = category;
    }

    @Override
    public String toString() {
        return "Book{" +
                "book_id=" + book_id +
                ", book_name='" + book_name + '\'' +
                ", isbn='" + isbn + '\'' +
                ", category='" + category + '\'' +
                '}';
    }
}

4.编写数据处理层

在dao包下操作

创建接口 BookDao，规定需要实现的功能

package com.jmp.dao;

import com.jmp.pojo.Book;

import java.sql.SQLException;
import java.util.List;

/**
 * @author JYH
 * @version 1.0
 * @date 2020/6/20 0:21
 */

public interface BookDao {

    /**
     * 查询所有图书
     */
    List<Book> selectAll() throws SQLException;

    /**
     * 添加图书
     */
    void add(Book book) throws SQLException;

    /**
     * 更新图书信息
     */
    void update(Book book) throws SQLException;

    /**
     * 删除图书
     */
    void delete(Book book) throws SQLException;

    /**
     * 根据书名模糊查询
     */
    List<Book> blurryName(Book book) throws SQLException;

    /**
     * 获取具体的图书信息
     * @return
     */
    Book bookInfo(Book book) throws SQLException;

    /**
     * 分页查询图书
     */
    List<Book> selectAll(int currentPage,int pageSize) throws SQLException;
}

根据需要实现的功能，编写对应的数据库代码配置文件 book-sql.properties

book.sql.selectAll=select * from book
book.sql.add=insert into book(book_name,isbn,category) value (?,?,?)
book.sql.update=update book set book_name=?,isbn=?,category=? where book_id=?
book.sql.delete=delete from book where book_id=?
book.sql.blurryName=select * from book where book_name like ?
book.sql.deleteBook=select * from book where book_id=?
book.sql.selectAllPage=select * from book limit ?,?

编写 BookDao 接口的实现类 BookDaoImpl

package com.jmp.dao;

import com.jmp.pojo.Book;
import com.jmp.util.DBUtil;
import lombok.Data;
import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanHandler;
import org.apache.commons.dbutils.handlers.BeanListHandler;

import java.sql.SQLException;
import java.util.List;
import java.util.ResourceBundle;

/**
 * @author JYH
 * @version 1.0
 * @date 2020/6/20 0:41
 */
@Data
public class BookDaoImpl implements BookDao{

    //查询运行器
    static QueryRunner qr = null;
    //加载sql文件
    static ResourceBundle rb = ResourceBundle.getBundle("com.jmp.dao.book-sql");

    public BookDaoImpl(){
        //创建BookDaoImpl对象时加载QueryRunner
        qr = new QueryRunner();
    }

    @Override
    public List<Book> selectAll() throws SQLException {
        String sql = rb.getString("book.sql.selectAll");
        List<Book> list = qr.query(DBUtil.getConnection(),sql,new BeanListHandler<Book>(Book.class));
        return list;
    }

    @Override
    public void add(Book book) throws SQLException {
        String sql = rb.getString("book.sql.add");
        qr.update(DBUtil.getConnection(),sql,book.getBook_name(),book.getIsbn(),book.getCategory());
    }

    @Override
    public void update(Book book) throws SQLException {
        String sql = rb.getString("book.sql.update");
        qr.update(DBUtil.getConnection(),sql,book.getBook_name(),book.getIsbn(),book.getCategory(),book.getBook_id());
    }

    @Override
    public void delete(Book book) throws SQLException {
        String sql = rb.getString("book.sql.delete");
        qr.update(DBUtil.getConnection(),sql,book.getBook_id());
    }

    @Override
    public List<Book> blurryName(Book book) throws SQLException {
        String sql = rb.getString("book.sql.blurryName");
        List<Book> list = qr.query(DBUtil.getConnection(),sql,new BeanListHandler<Book>(Book.class),"%"+book.getBook_name()+"%");
        return list;
    }

    @Override
    public Book bookInfo(Book book) throws SQLException{
        String sql = rb.getString("book.sql.deleteBook");
        Book b = qr.query(DBUtil.getConnection(),sql,new BeanHandler<Book>(Book.class),book.getBook_id());
        return b;
    }

    @Override
    public List<Book> selectAll(int currentPage, int pageSize) throws SQLException {
        String sql = rb.getString("book.sql.selectAllPage");
        List<Book> list = qr.query(DBUtil.getConnection(),sql,new BeanListHandler<>(Book.class),((currentPage-1)*pageSize),pageSize);
        return list;
    }
}

5.编写业务逻辑层

在service包下操作

编写 BookService 接口，规定需要实现的业务

package com.jmp.service;

import com.jmp.pojo.Book;

import java.sql.SQLException;
import java.util.List;

/**
 * @author JYH
 * @version 1.0
 * @date 2020/6/20 1:36
 */
public interface BookService {
    /**
     * 查询所有图书
     */
    List<Book> selectAll() throws SQLException;

    /**
     * 添加图书
     */
    void add(Book book) throws SQLException;

    /**
     * 更新图书信息
     */
    void update(Book book) throws SQLException;

    /**
     * 删除图书
     */
    void delete(Book book) throws SQLException;

    /**
     * 根据书名模糊查询
     */
    List<Book> blurryName(Book book) throws SQLException;

    /**
     * 获取删除图书的信息
     * @return
     */
    Book bookInfo(Book book) throws SQLException;

    /**
     * 分页查询图书（后期添加 --- 使用default关键字）
     */
    List<Book> selectAll(int currentPage,int pageSize) throws SQLException;
}

编写 BookService 接口的实现类 BookServiceImpl

package com.jmp.service;

import com.jmp.dao.BookDao;
import com.jmp.dao.BookDaoImpl;
import com.jmp.pojo.Book;
import lombok.Data;

import java.sql.SQLException;
import java.util.List;

/**
 * @author JYH
 * @version 1.0
 * @date 2020/6/20 1:37
 */
@Data
public class BookServiceImpl implements BookService{

    BookDao bookDao = new BookDaoImpl();

    @Override
    public List<Book> selectAll() throws SQLException {
        return bookDao.selectAll();
    }

    @Override
    public void add(Book book) throws SQLException {
        bookDao.add(book);
    }

    @Override
    public void update(Book book) throws SQLException {
        bookDao.update(book);
    }

    @Override
    public void delete(Book book) throws SQLException {
        bookDao.delete(book);
    }

    @Override
    public List<Book> blurryName(Book book) throws SQLException {
        return bookDao.blurryName(book);
    }

    @Override
    public Book bookInfo(Book book) throws SQLException{
        return bookDao.bookInfo(book);
    }

    @Override
    public List<Book> selectAll(int currentPage, int pageSize) throws SQLException {
        return bookDao.selectAll(currentPage,pageSize);
    }
}

6.编写控制台程序（C/S）

在view包下操作

编写 BookManager 类，在控制台使用图书管理系统的功能

package com.jmp.view;

import com.jmp.pojo.Book;
import com.jmp.service.BookService;
import com.jmp.service.BookServiceImpl;

import java.sql.SQLException;
import java.util.List;
import java.util.Scanner;

/**
 * @author JYH
 * @version 1.0
 * @date 2020/6/20 1:47
 */
public class BookManager {
    
    static Scanner sc = new Scanner(System.in);
    static BookService bookService = new BookServiceImpl();

    public static void main(String[] args) {
        while (true) {
            System.out.println("|----------------图书管理系统-----------------|");
            System.out.println("|1-增加 2-删除 3-修改 4-查找 5-显示所有 0-退出|");
            System.out.println("|--------------------------------------|");
            System.out.println("请选择业务");
            int x = sc.nextInt();
            switch (x) {
                case 1:
                    add();
                    break;
                case 2:
                    delete();
                    break;
                case 3:
                    update();
                    break;
                case 4:
                    bookLike();
                    break;
                case 5:
                    selectAll();
                    break;
                case 0:
                    System.out.println("程序已退出，欢迎再次使用！");
                    System.exit(0);
                    break;
                default:
                    System.out.println("输入数据有误，请重新输入！");
                    break;
            }
        }
    }
    
    public static void add(){
        System.out.println("------------增加------------");
        System.out.println("图书名称：");
        String name = sc.next();
        System.out.println("ISBN编号：");
        String isbn = sc.next();
        System.out.println("图书类别：");
        String category = sc.next();
        Book book = new Book(0,name,isbn,category);
        try {
            bookService.add(book);
            System.out.println("增加成功！---------------\n");
        } catch (SQLException e1) {
            e1.printStackTrace();
        }
    }

    public static void delete() {
        System.out.println("------------删除------------");
        System.out.println("请输入要删除的图书编号：");
        int id = sc.nextInt();
        Book book = new Book();
        book.setBook_id(id);
        try {
            book = bookService.bookInfo(book);
            System.out.println(book.toString());
            System.out.println("确认要删除吗？1-是 0-否");
            int cmd = sc.nextInt();
            if(1==cmd) {
                bookService.delete(book);
                System.out.println("删除成功！");
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }

    }

    public static void update() {
        System.out.println("------------修改------------");
        System.out.println("请输入要修改图书的编号：");
        int id = sc.nextInt();
        Book book = new Book();
        book.setBook_id(id);
        try {
            book = bookService.bookInfo(book);
        } catch (SQLException e) {
            e.printStackTrace();
        }
        System.out.println(book.toString());
        System.out.println("请重新输入图书的信息：");
        System.out.println("图书名称：");
        String name = sc.next();
        System.out.println("ISBN编号：");
        String isbn = sc.next();
        System.out.println("图书类别：");
        String category = sc.next();
        book = new Book(id,name,isbn,category);
        try {
            bookService.update(book);
            System.out.println("修改成功！---------------");
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    public static void bookLike() {
        System.out.println("-------------模糊查询------------");
        System.out.println("请输入图书名称关键字：");
        String name = sc.next();
        Book book = new Book();
        book.setBook_name(name);
        try {
            List<Book> list = bookService.blurryName(book);
            for(Book b:list) {
                System.out.println(b.toString());
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }

    }

    public static void selectAll() {
        System.out.println("-------------查询所有------------");
        try {
            List<Book> list = bookService.selectAll();
            for(Book book:list) {
                System.out.println(book.toString());
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

7.编写业务控制层（B/S）

在servlet包下操作

编写 BookServlet，对整体业务进行控制

package com.jmp.servlet;

import com.jmp.pojo.Book;
import com.jmp.service.BookService;
import com.jmp.service.BookServiceImpl;
import com.jmp.util.PageBean;

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 java.io.IOException;
import java.sql.SQLException;
import java.util.List;


/**
 * @author JYH
 * @version 1.0
 * @date 2020/6/20 22:10
 */
@WebServlet(name = "BookServlet",urlPatterns = "/BookServlet")
public class BookServlet extends HttpServlet {

    BookService bookService = new BookServiceImpl();

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request,response);
    }

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String m = request.getParameter("m");
        if ("add".equals(m)){
            add(request,response);
        }else if("update".equals(m)){
            update(request,response);
        }else if("delete".equals(m)){
            delete(request,response);
        }else if("selectAll".equals(m)){
            selectAll(request,response);
        }else if("bookInfo".equals(m)){
            bookInfo(request,response);
        }else if ("blurryname".equals(m)){
            bookBlurryName(request, response);
        }
    }

    private void add(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException {
        String bookName = request.getParameter("book_name");
        String isbn = request.getParameter("isbn");
        String category = request.getParameter("category");
        Book book = new Book(0,bookName,isbn,category);
        System.out.println(book.toString());
        try {
            bookService.add(book);
            selectAll(request,response);
        } catch (SQLException throwables) {
            throwables.printStackTrace();
        }
    }

    private void update(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException {
        String bookId = request.getParameter("book_id");
        String bookName = request.getParameter("book_name");
        String isbn = request.getParameter("isbn");
        String category = request.getParameter("category");
        Book book = new Book(Integer.parseInt(bookId),bookName,isbn,category);
        try {
            bookService.update(book);
            selectAll(request,response);
        } catch (SQLException throwables) {
            throwables.printStackTrace();
        }
    }

    private void delete(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException{
        String bookId = request.getParameter("book_id");
        Book book = new Book();
        book.setBook_id(Integer.parseInt(bookId));
        try {
            bookService.delete(book);
            selectAll(request,response);
        } catch (SQLException throwables) {
            throwables.printStackTrace();
        }
    }

    PageBean pb = new PageBean();
    int pageUp = pb.getPage();
    int pageDown = pb.getPage();

    private void selectAll(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException {

        if("pageUp".equals(request.getParameter("pageUp"))){
            System.out.println(request.getParameter("pageUp"));
            pb.setPage(pb.getPage()-1);
//            request.setAttribute("pageUp",pb.getPage());
            if (pb.getPage() < 1){
                pb.setPage(1);
            }
            try {
                List<Book> booklist = bookService.selectAll(pb.getPage(),5);
                request.setAttribute("bookList",booklist);
                request.getRequestDispatcher("/views/booklist.jsp").forward(request,response);
            } catch (SQLException throwables) {
                throwables.printStackTrace();
            }
        }else if("pageDown".equals(request.getParameter("pageDown"))){
            System.out.println(request.getParameter("pageDown"));
            pb.setPage(pb.getPage()+1);
//            request.setAttribute("pageDown",pb.getPage());
            try {
                List<Book>  booklist = bookService.selectAll(pb.getPage(),5);
                request.setAttribute("bookList",booklist);
                if ("".equals(booklist)){
                    request.setAttribute("null_err","<h3>查询内容为空请返回上一页</h3>");
                }
                request.getRequestDispatcher("/views/booklist.jsp").forward(request,response);
            } catch (SQLException throwables) {
                throwables.printStackTrace();
            }
        }else{
//            request.setAttribute("pageUp",1);
//            request.setAttribute("pageDown",2);
            pb.setPage(1);
            try {
                List<Book>  booklist = bookService.selectAll(pb.getPage(),5);
                request.setAttribute("bookList",booklist);
                request.getRequestDispatcher("/views/booklist.jsp").forward(request,response);
            } catch (SQLException throwables) {
                throwables.printStackTrace();
            }
        }

    }

/*    private void selectAll(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException {
        try {
            List<Book>  booklist = bookService.selectAll(1,5);
            request.setAttribute("bookList",booklist);
            request.getRequestDispatcher("/views/booklist.jsp").forward(request,response);
        } catch (SQLException throwables) {
            throwables.printStackTrace();
        }

    }*/


    private void bookInfo(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException {
        String bookId = request.getParameter("book_id");
        Book book = new Book();
        book.setBook_id(Integer.parseInt(bookId));
        try {
            Book b = bookService.bookInfo(book);
            request.setAttribute("b", b);
        } catch (SQLException throwables) {
            throwables.printStackTrace();
        }
        request.getRequestDispatcher("/views/updatebook.jsp").forward(request, response);
    }

    private void bookBlurryName(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException{
        String keyName = request.getParameter("blurryname");
        Book book = new Book();
        book.setBook_name(keyName);
        try {
            List<Book> bookblurryList = bookService.blurryName(book);
            request.setAttribute("bookblurryList",bookblurryList);
            request.getRequestDispatcher("/views/blurrynamebook.jsp").forward(request,response);
        } catch (SQLException throwables) {
            throwables.printStackTrace();
        }
    }
}

8.编写过滤器

在filter包下操作

编写字符编码过滤器 CharacterEncodingFilter，防止数据传递和页面乱码

package com.jmp.filter;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.annotation.WebInitParam;
import java.io.IOException;

/**
 * @author JYH
 * @version 1.0
 * @date 2020/6/21 0:15
 */
@WebFilter(
        filterName="CharacterEncodingFilter",
        urlPatterns="/*",
        initParams= {@WebInitParam(name="characterEncoding",value="utf-8")}
)
public class CharacterEncodingFilter implements Filter {
    private String characterEncoding;
    @Override
    public void destroy() {
    }

    @Override
    public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws ServletException, IOException {
        System.out.println("characterEncoding="+characterEncoding);
        if(null!=characterEncoding) {
            req.setCharacterEncoding(characterEncoding);
            resp.setCharacterEncoding(characterEncoding);
        }
        chain.doFilter(req, resp);
    }

    @Override
    public void init(FilterConfig config) throws ServletException {
        characterEncoding = config.getInitParameter("characterEncoding");
    }
}

9.编写前端页面

在 web/views 文件夹下操作

编写书籍添加页面，addbook.jsp

<%--
  Created by IntelliJ IDEA.
  User: JYH
  Date: 2020/6/20
  Time: 20:56
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>添加图书</title>
</head>
<body>
    <div align="center">
        <h3>添加图书</h3>
        <form action="${pageContext.request.contextPath}/BookServlet?m=add" method="post">
            <table>
                <tr>
                    <td>图书名称</td>
                    <td><input type="text" name="book_name"></td>
                </tr>
                <tr>
                    <td>ISBN编号</td>
                    <td><input type="text" name="isbn"></td>
                </tr>
                <tr>
                    <td>图书类型</td>
                    <td><input type="text" name="category"></td>
                </tr>
            </table>
            <input type="submit" value="添加">&nbsp;&nbsp;&nbsp;&nbsp;<input type="reset" value="重置">
        </form>
    </div>
</body>
</html>

编写书籍模糊查询页面，blurrynamebook.jsp

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%--
  Created by IntelliJ IDEA.
  User: JYH
  Date: 2020/6/21
  Time: 0:21
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>书名模糊查询</title>
    <style>
        table,table tr th,table tr td{
            border:1px solid #000;
            text-align:center;
        }
        table{
            width:600px;
            border-collapse:collapse;
        }
       #index p{
            padding-top:5px;
            padding-left:480px;
        }
        a{
            text-decoration:none;
        }
    </style>
</head>
<body>
    <div align="center">
        <h3>书名模糊查询</h3>

        <form action="${pageContext.request.contextPath}/BookServlet?m=blurryname" method="post">
            <input type="text" name="blurryname"><input type="submit" value="搜索"><br><br>
            <div id="index"><a href="/index.jsp">返回首页</a></div>
            <table>
                <tr>
                    <td>图书编号</td>
                    <td>图书名称</td>
                    <td>ISBN编号</td>
                    <td>图书类别</td>
                    <td>选择操作</td>
                </tr>
            <c:forEach items="${bookblurryList}" var="bookblurrylist">
                <tr>
                    <td>${bookblurrylist.book_id}</td>
                    <td>${bookblurrylist.book_name}</td>
                    <td>${bookblurrylist.isbn}</td>
                    <td>${bookblurrylist.category}</td>
                    <td>
                        <a href="${pageContext.request.contextPath}/BookServlet?m=bookInfo&book_id=${bookblurrylist.book_id}">修改</a>
                        <a href="${pageContext.request.contextPath}/BookServlet?m=delete&book_id=${bookblurrylist.book_id}" onclick="return confirm('您确定要删除吗？');">删除</a>
                    </td>
                </tr>
            </c:forEach>
        </form>
        <br>
    </div>

</body>
</html>

编写书籍列表页面，booklist.jsp

<%--
  Created by IntelliJ IDEA.
  User: JYH
  Date: 2020/6/20
  Time: 21:48
  To change this tbooklate use File | Settings | File Tbooklates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
    <title>图书列表</title>
    <style>
        table,table tr th,table tr td{
            border:1px solid #000;
            text-align:center;
        }
        table{
            width:600px;
            border-collapse:collapse;
        }
        #addbook{
            width:600px;
            height:50px;
        }
        #addbook p{
            padding-top:5px;
            padding-left:480px;
        }
        a{
            text-decoration:none;
        }
    </style>
</head>
<body>
    <div align="center">
        <h3>所有图书列表</h3>
        <div id="addbook">
            <p><a href="${pageContext.request.contextPath}/views/addbook.jsp">添加图书</a></p>
            <p><a href="${pageContext.request.contextPath}/views/blurrynamebook.jsp">书名关键字查询</a></p>
        </div>
        <br><br>
        <table>
            <tr>
                <td>图书编号</td>
                <td>图书名称</td>
                <td>ISBN编号</td>
                <td>图书类别</td>
                <td>选择操作</td>
            </tr>
            <c:forEach items="${bookList}" var="booklist">
                <tr>
                    <td>${booklist.book_id}</td>
                    <td>${booklist.book_name}</td>
                    <td>${booklist.isbn}</td>
                    <td>${booklist.category}</td>
                    <td>
                        <a href="${pageContext.request.contextPath}/BookServlet?m=bookInfo&book_id=${booklist.book_id}">修改</a>
                        <a href="${pageContext.request.contextPath}/BookServlet?m=delete&book_id=${booklist.book_id}" onclick="return confirm('您确定要删除吗？');">删除</a>
                    </td>
                </tr>
            </c:forEach>
        </table>
        ${null_err}
        <div>
            <a href="${pageContext.request.contextPath}/BookServlet?m=selectAll&pageUp=pageUp">上一页</a>
            <a href="${pageContext.request.contextPath}/BookServlet?m=selectAll&pageDown=pageDown">下一页</a>
        </div>
    </div>
</body>
</html>

编写书籍更新页面，updatebook.jsp

<%--
  Created by IntelliJ IDEA.
  User: JYH
  Date: 2020/6/20
  Time: 21:31
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c"  uri="http://java.sun.com/jsp/jstl/core"%>
<html>
<head>
    <title>更新图书</title>
</head>
<body>
    <div align="center">
        <h3>修改图书</h3>
        <form action="${pageContext.request.contextPath}/BookServlet?m=update" method="post">
            <table>
                <tr>
                    <td>图书编号</td>
                    <td><input type="text" name="book_id" value="${b.book_id}" readonly="readonly"></td>
                </tr>
                <tr>
                    <td>图书名称</td>
                    <td><input type="text" name="book_name" value="${b.book_name}"></td>
                </tr>
                <tr>
                    <td>ISBN编号</td>
                    <td><input type="text" name="isbn" value="${b.isbn}"></td>
                </tr>
                <tr>
                    <td>图书类别</td>
                    <td><input type="text" name="category" value="${b.category}"></td>
                </tr>
            </table>
            <input type="submit" value="修改">&nbsp;&nbsp;&nbsp;&nbsp;<input type="reset" value="重置">
        </form>
    </div>
</body>
</html>

在 web 文件夹下操作

更改 index.jsp 代码，完善程序入口

<%-- Created by IntelliJ IDEA. --%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
  <head>
    <title>欢迎使用图书管理系统</title>
  </head>
  <body>
  <div align="center">
    <h3><a href="views/addbook.jsp">添加图书</a></h3>
    <h3><a href="BookServlet?m=selectAll">查询所有图书</a></h3>
    <h3><a href="views/blurrynamebook.jsp">图书名称关键字查询图书</a></h3>
    <%--<h3><a href="views/updatebook.jsp">更新图书</a></h3>--%>
  </div>
  </body>
</html>

本文地址：https://blog.csdn.net/weixin_44580492/article/details/106933749

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