如何解决驱动程序无法通过使用安全套接字层(SSL)加密与 SQL Server 建立安全连接。

背景：

就写个简单的jdbc连接sqlserver数据库，用的是最新的JDK 24版本。

结果代码运行出现以下错误

数据库连接失败！

com.microsoft.sqlserver.jdbc.SQLServerException: 驱动程序无法通过使用安全套接字层(SSL)加密与 SQL Server 建立安全连接。错误:"No appropriate protocol (protocol is disabled or cipher suites are inappropriate)"。 ClientConnectionId:0f49ebb2-c949-49f7-acb6-c07929c83cd3

at com.microsoft.sqlserver.jdbc.SQLServerConnection.terminate(SQLServerConnection.java:3806)

at com.microsoft.sqlserver.jdbc.TDSChannel.enableSSL(IOBuffer.java:1906)

at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLServerConnection.java:3329)

at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConnection.java:2950)

at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectInternal(SQLServerConnection.java:2790)

at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:1663)

at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:1064)

at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:613)

at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:199)

at com.kaka.dao.SQLServerJDBC.main(SQLServerJDBC.java:27)

Caused by: javax.net.ssl.SSLHandshakeException: No appropriate protocol (protocol is disabled or cipher suites are inappropriate)

at java.base/sun.security.ssl.HandshakeContext.<init>(HandshakeContext.java:162)

at java.base/sun.security.ssl.ClientHandshakeContext.<init>(ClientHandshakeContext.java:103)

at java.base/sun.security.ssl.TransportContext.kickstart(TransportContext.java:245)

at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:448)

at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:426)

at com.microsoft.sqlserver.jdbc.TDSChannel.enableSSL(IOBuffer.java:1795)

... 8 more

解决方案：

1、找到java安装目录的conf\security

2、用记事本软件打开java.security文件，找到第737行，或者直接搜索关键字jdk.tls.disabledAlgorithms=SSLv3，如下所示，把红框的删除掉，然后保存文件。

3、再次运行代码

package com.kaka.dao;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.sql.PreparedStatement;
import java.sql.SQLException;

public class SQLServerJDBC {
    
    // 数据库连接信息
    private static final String URL = "jdbc:sqlserver://127.0.0.1:1433;databaseName=Test-demo;encrypt=true;trustServerCertificate=true;sslProtocol=TLSv1";
    private static final String USERNAME = "sa";
    private static final String PASSWORD = "123456";
    
    public static void main(String[] args) {
        Connection connection = null;
        Statement statement = null;
        ResultSet resultSet = null;
        
        try {
            // 1. 加载驱动（JDBC 4.0+ 可以自动加载，这一步可选）
            Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
            
            // 2. 建立连接
            connection = DriverManager.getConnection(URL, USERNAME, PASSWORD);
            System.out.println("数据库连接成功！");
            
            // 3. 创建Statement对象
            statement = connection.createStatement();
            
            // 4. 执行查询
            String sql = "SELECT * FROM UserInfo";
            resultSet = statement.executeQuery(sql);
            
            // 5. 处理结果集
            while (resultSet.next()) {
                int id = resultSet.getInt("id");
                String name = resultSet.getString("name");
                System.out.println("ID: " + id + ", Name: " + name);
            }
            
        } catch (ClassNotFoundException e) {
            System.err.println("找不到JDBC驱动！");
            e.printStackTrace();
        } catch (SQLException e) {
            System.err.println("数据库连接失败！");
            e.printStackTrace();
        } finally {
            // 6. 关闭资源
            try {
                if (resultSet != null) resultSet.close();
                if (statement != null) statement.close();
                if (connection != null) connection.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }
}

4、运行结果