Java运行jsp时出现了下面这个问题

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运行left.html时，点击查询图书和添加图书都出现下面这个错误，是因为我数据库没连接对吗，还是其他原因？

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left.html里面的代码


<html>
    <head>
        <title>TODO supply a title</title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
    </head>
    <body style="background: seashell;">
       <div>图书出版管理功能：</div>
       <p><a href="bookinfo.jsp" target="content"><button type="button">查询图书</button></a></p>
        <p><a href="bookAddInfo.jsp" target="content"><button type="button">添加图书</button></a></p>
    </body>
</html>

bookAddInfo.jsp里的代码


<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>JSP Page</title>
    </head>
    <body>
        <h1>添加图书信息</h1>
        <%
            String info = (String)request.getAttribute("info");
        %>
       <%=info%>
        <form action="insertBook.jsp">
            <table border="1">
                <tr>
                    <td>属性</td>
                    <td>值</td>
                </tr>
                <tr>
                    <td>图书编码</td>
                    <td><input type="text" name="bookId" value=""></td>
                </tr>
                 <tr>
                    <td>图书名</td>
                    <td><input type="text" name="bookName" value=""></td>
                </tr>
                <tr>
                    <td>作者</td>
                    <td><input type="text" name="author" value=""></td>
                </tr>
                <tr>
                    <td>出版日期</td>
                    <td><input type="text" name="publishDate" value="yyyy-mm-dd"></td>
                </tr>
                 <tr>
                    <td>价格</td>
                    <td><input type="text" name="price" value=""></td>
                </tr>
                 <tr>
                    <td>库存</td>
                    <td><input type="text" name="stock" value=""></td>
                </tr>
                <tr>
                    <td><input type="reset" value="重置"></td>
                    <td><input type="submit" value="添加"></td>
                </tr>
            </table>
        </form>
    </body>
</html>

路径错误