java.sql.SQLNonTransientConnectionException：无法打开文件：keystore.jks [密钥库被篡改，或密码不正确]

Question

我是 Java 世界的新手，虽然使用 NetBeans 代码创建 Web 应用程序工作正常，直到执行 get 方法，但当我尝试执行 SQL 查询时 glassfish 无法显示来自 MSQL DB 的数据并给出错误。我正在使用

• Apache NetBeans IDE 18
• JDK20
• 玻璃鱼7.0.3
• MySQL 8.0 CE
• Windows10

在我的项目中创建了一个名为 GreetingServlet.java 的 servlet，应该执行该 servlet 以从图书馆数据库中获取数据。库正在运行。但我的代码在网络浏览器中显示错误，例如

HTTP Status 500 - Internal Server Error
type Exception report
messageInternal Server Error
descriptionThe server encountered an internal error that prevented it from fulfilling this request.
exception
jakarta.servlet.ServletException: Servlet Could not display records.
root cause

java.sql.SQLNonTransientConnectionException: Cannot open file:C:\Users\Subhranshu\glassfish7\glassfish\domains\domain1/config/keystore.jks [Keystore was tampered with, or password was incorrect]
root cause

com.mysql.cj.exceptions.SSLParamsException: Cannot open file:C:\Users\Subhranshu\glassfish7\glassfish\domains\domain1/config/keystore.jks [Keystore was tampered with, or password was incorrect]
root cause

java.io.IOException: Keystore was tampered with, or password was incorrect
root cause

java.security.UnrecoverableKeyException: Password verification failed

请找到我的代码：

Connection con;
con = null;  
PreparedStatement stmt = null;
ResultSet rs = null;
try {
    Class.forName("com.mysql.cj.jdbc.Driver");
    con =DriverManager.getConnection 
    //("jdbc:mysql://127.0.0.1:3306/library","root","");
    ("jdbc:mysql://localhost:3306/library","root","");
    stmt = con.prepareStatement("select * from users where username = ? and password = ?");
    stmt.setString(1, username);
    stmt.setString(2, password);
    rs = stmt.executeQuery();

Answer 1

MySQL 驱动程序默认使用安全连接 (SSL/TLS)，这不能开箱即用，需要在 GlassFish 中进行一些配置。

如果您刚刚开始，我建议在驱动程序中禁用 SSL，使用以下连接 URL：

“jdbc:mysql://localhost:3306/library?useSSL=false”