jsp新书入库，完成图书的添加操作。添加成功返回图书列表页面

好的，你需要编写一个后端接口来处理这个功能。首先，你需要定义一个 Book 类，用于存储图书信息。

public class Book {
    private String id; // 图书编号
    private String name; // 图书名称
    private String author; // 作者
    private String publisher; // 出版社
    private Date publishDate; // 出版日期
    // 省略 getter 和 setter 方法
}

然后，你需要编写一个 BookDao 类，用于操作数据库。这里使用 JDBC 技术来连接数据库，并进行增删改查操作。

public class BookDao {
    private Connection conn;

    public BookDao() {
        try {
            Class.forName("com.mysql.jdbc.Driver");
            conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/library", "root", "password");
        } catch (ClassNotFoundException | SQLException e) {
            e.printStackTrace();
        }
    }

    public void addBook(Book book) {
        try {
            PreparedStatement ps = conn.prepareStatement("insert into book(id, name, author, publisher, publish_date) values (?, ?, ?, ?, ?)");
            ps.setString(1, book.getId());
            ps.setString(2, book.getName());
            ps.setString(3, book.getAuthor());
            ps.setString(4, book.getPublisher());
            ps.setDate(5, new java.sql.Date(book.getPublishDate().getTime()));
            ps.executeUpdate();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    // 省略其他方法
}

接着，你需要编写一个 BookController 类，处理图书添加请求。

public class BookController {
    private BookDao bookDao;

    public BookController() {
        bookDao = new BookDao();
    }

    public void addBook(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String id = request.getParameter("id");
        String name = request.getParameter("name");
        String author = request.getParameter("author");
        String publisher = request.getParameter("publisher");
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        Date publishDate = null;
        try {
            publishDate = sdf.parse(request.getParameter("publishDate"));
        } catch (ParseException e) {
            e.printStackTrace();
        }
        Book book = new Book();
        book.setId(id);
        book.setName(name);
        book.setAuthor(author);
        book.setPublisher(publisher);
        book.setPublishDate(publishDate);
        bookDao.addBook(book);
        response.sendRedirect(request.getContextPath() + "/book/list.jsp");
    }
}

最后，在 web.xml 文件中配置 BookController 的 Servlet 映射。

<servlet>
    <servlet-name>BookServlet</servlet-name>
    <servlet-class>com.example.BookController</servlet-class>
</servlet>
<servlet-mapping>
    <servlet-name>BookServlet</servlet-name>
    <url-pattern>/book/*</url-pattern>
</servlet-mapping>

现在，你可以在前端页面中调用 /book/add 接口来添加图书，并跳转到列表页面。

<form action="${pageContext.request.contextPath}/book/add" method="post">
    <label for="id">编号：</label>
    <input type="text" id="id" name="id">
    <br>
    <label for="name">名称：</label>
    <input type="text" id="name" name="name">
    <br>
    <label for="author">作者：</label>
    <input type="text" id="author" name="author">
    <br>
    <label for="publisher">出版社：</label>
    <input type="text" id="publisher" name="publisher">
    <br>
    <label for="publishDate">出版日期：</label>
    <input type="date" id="publishDate" name="publishDate">
    <br>
    <input type="submit" value="添加">
</form>