jsp的数据库连接配置

// 示例代码：使用JDBC连接数据库
<%@ page import="java.sql.*" %>
<%
    String url = "jdbc:mysql://localhost:3306/mydatabase";
    String user = "username";
    String password = "password";
    Connection conn = null;
    try {
        Class.forName("com.mysql.jdbc.Driver");
        conn = DriverManager.getConnection(url, user, password);
        // 进行数据库操作
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    } catch (SQLException e) {
        e.printStackTrace();
    } finally {
        if (conn != null) {
            try {
                conn.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }
%>

<!-- 示例代码：web.xml中的数据库连接配置 -->
<resource-ref>
    <description>DB Connection</description>
    <res-ref-name>jdbc/mydatabase</res-ref-name>
    <res-type>javax.sql.DataSource</res-type>
    <res-auth>Container</res-auth>
</resource-ref>