网页上显示出hex编码

<%@ page import="java.sql.*" %>
<%@ page import="java.io.PrintWriter" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ page import="java.util.TimeZone" %>

<html>
<head>
    <title>Display File Content</title>
</head>
<body>

<%
    Connection connection = null;
    Statement statement = null;
    ResultSet resultSet = null;

    try {
        // 数据库连接信息
        String jdbcUrl = "jdbc:mysql://localhost:3306/ceshi?useSSL=false&serverTimezone=" + TimeZone.getDefault().getID();
        String user = "root";
        String password = "root";

        // 加载驱动程序
        Class.forName("com.mysql.jdbc.Driver");

        // 建立数据库连接
        connection = DriverManager.getConnection(jdbcUrl, user, password);
        statement = connection.createStatement();

        // 查询文件内容
        String sql = "SELECT HEX(LOAD_FILE('/home/1.txt')) AS hex_content";
        resultSet = statement.executeQuery(sql);

        if (resultSet.next()) {
            String hexContent = resultSet.getString("hex_content");
            // 在网页上显示文件内容
            out.println(hexContent);
        } else {
            out.println("<p>File not found or permission denied.</p>");
        }

    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        // 关闭数据库连接
        try {
            if (resultSet != null) resultSet.close();
            if (statement != null) statement.close();
            if (connection != null) connection.close();
        } catch (SQLException e) {
  
        }
    }
%>

</body>
</html>

python代码hex转成

import binascii

# 读取hex编码的内容
with open('/home//1.txt', 'r') as file:
    hex_content = file.read().strip()

# 将hex转换为bytes
binary_content = binascii.unhexlify(hex_content)

# 将bytes写入jar文件
with open('/home/1.jar', 'wb') as output_file:
    output_file.write(binary_content)

print("转换完成，输出文件：/home/output.jar")

mysql连接地址下载
https://repo1.maven.org/maven2/mysql/mysql-connector-java/5.1.6/mysql-connector-java-5.1.6.jar

最后修改：2025 年 01 月 18 日
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