Javaee做一个阅读记录界面的代码

以下是一个简单的JavaEE阅读记录界面代码示例，其中使用了JSP和Servlet： 1. 阅读记录界面的JSP页面（read.jsp）： ```jsp <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>阅读记录</title> </head> <body> <h1>阅读记录</h1> <table> <tr> <th>书名</th> <th>作者</th> <th>阅读时间</th> <<th>操作</th> </tr> <c:forEach var="book" items="${books}"> <tr> <td>${book.title}</td> <td>${book.author}</td> <td>${book.date}</td> <td><a href="${pageContext.request.contextPath}/delete?id=${book.id}">删除</a></td> </tr> </c:forEach> </table> <br> <form action="${pageContext.request.contextPath}/add" method="post"> 书名：<input type="text" name="title"><br> 作者：<input type="text" name="author"><br> 阅读时间：<input type="date" name="date"><br> <input type="submit" value="添加"> </form> </body> </html> ``` 2. Servlet控制器（BookServlet.java）： ```java package com.example.controller; import java.io.IOException; import java.sql.SQLException; import java.util.List; 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.example.dao.BookDao; import com.example.model.Book; @WebServlet("/read") public class BookServlet extends HttpServlet { private static final long serialVersionUID = 1L; private BookDao bookDao; public BookServlet() { super(); bookDao = new BookDao(); } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { List<Book> books; try { books = bookDao.getAllBooks(); request.setAttribute("books", books); request.getRequestDispatcher("/read.jsp").forward(request, response); } catch (SQLException e) { e.printStackTrace(); response.getWriter().append("Error: " + e.getMessage()); } } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String title = request.getParameter("title"); String author = request.getParameter("author"); String date = request.getParameter("date"); Book book = new Book(title, author, date); try { bookDao.addBook(book); response.sendRedirect(request.getContextPath() + "/read"); } catch (SQLException e) { e.printStackTrace(); response.getWriter().append("Error: " + e.getMessage()); } } protected void doDelete(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int id = Integer.parseInt(request.getParameter("id")); try { bookDao.deleteBook(id); response.sendRedirect(request.getContextPath() + "/read"); } catch (SQLException e) { e.printStackTrace(); response.getWriter().append("Error: " + e.getMessage()); } } } ``` 3. DAO类（BookDao.java）： ```java package com.example.dao; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.util.ArrayList; import java.util.List; import com.example.model.Book; import com.example.utils.DbUtils; public class BookDao { private Connection conn; public BookDao() { conn = DbUtils.getConnection(); } public List<Book> getAllBooks() throws SQLException { List<Book> books = new ArrayList<>(); String sql = "SELECT * FROM books"; PreparedStatement stmt = conn.prepareStatement(sql); ResultSet rs = stmt.executeQuery(); while (rs.next()) { int id = rs.getInt("id"); String title = rs.getString("title"); String author = rs.getString("author"); String date = rs.getString("date"); Book book = new Book(id, title, author, date); books.add(book); } rs.close(); stmt.close(); return books; } public void addBook(Book book) throws SQLException { String sql = "INSERT INTO books (title, author, date) VALUES (?, ?, ?)"; PreparedStatement stmt = conn.prepareStatement(sql); stmt.setString(1, book.getTitle()); stmt.setString(2, book.getAuthor()); stmt.setString(3, book.getDate()); stmt.executeUpdate(); stmt.close(); } public void deleteBook(int id) throws SQLException { String sql = "DELETE FROM books WHERE id=?"; PreparedStatement stmt = conn.prepareStatement(sql); stmt.setInt(1, id); stmt.executeUpdate(); stmt.close(); } } ``` 4. 实体类（Book.java）： ```java package com.example.model; public class Book { private int id; private String title; private String author; private String date; public Book() { } public Book(String title, String author, String date) { this.title = title; this.author = author; this.date = date; } public Book(int id, String title, String author, String date) { this.id = id; this.title = title; this.author = author; this.date = date; } // getters and setters } ``` 以上代码仅供参考，具体实现可能会因为需求不同而有所变化。

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Javaee做一个阅读记录界面的代码

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