JDBC连接配置/JDBC请求的问题-JMETER

1. 检查JDBC驱动程序是否正确

确保已经加载了正确版本的JDBC驱动程序，例如：

Class.forName("com.mysql.jdbc.Driver");

2. 检查JDBC连接URL是否正确

Ensure that the JDBC connection URL is correct, for example:

jdbc:mysql://localhost:3306/database_name

3. 检查JDBC用户名和密码是否正确

Ensure that the JDBC username and password are correct, for example:

Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/database_name", "username", "password");

4. 检查JDBC请求是否正确设置

Ensure that the JDBC request is properly configured with the correct query and parameters, for example:

SELECT * FROM users WHERE id = ?;

5. 检查JDBC连接配置是否正确

Ensure that the JDBC connection configuration is properly set up with the correct driver class, JDBC URL, username, and password.

示例：

Connection conn = null; try { Class.forName("com.mysql.jdbc.Driver"); conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/database_name", "username", "password"); PreparedStatement stmt = conn.prepareStatement("SELECT * FROM users WHERE id = ?"); stmt.setInt(1, 12345); ResultSet rs = stmt.executeQuery(); while (rs.next()) { System.out.println(rs.getString("username")); } } catch (Exception ex) { ex.printStackTrace(); } finally { try { if (conn != null) conn.close(); } catch (SQLException ex) { ex.printStackTrace(); } }