在eclipse中用JDBC操作数据库时，报错Unknowndatabase

Question

以下是代码，黑色的部分也是代码的连续部分

package jdbcTest;

import java.io.InputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.Properties;

public class test01 {
public static void main(String[] args) {
Connection conn = null;
PreparedStatement ps = null;
try {
InputStream is = test01.class.getClassLoader().getResourceAsStream("jdbc.properties");
Properties pros = new Properties();
pros.load(is);

    String user = pros.getProperty("user");
    String password = pros.getProperty("password");
    String url = pros.getProperty("url");
    String driver = pros.getProperty("driver");
    
    Class.forName(driver);
    
    conn = DriverManager.getConnection(url,user,password);
    

// System.out.println(conn);
String sql = "insert into stuinfo(stuno,stuname) values (?,?)";
ps = conn.prepareStatement(sql);

    ps.setString(1,"S777");
    ps.setString(2, "罗辑");
    
    ps.execute();
} catch (Exception e) {
    e.printStackTrace();
} finally {
    try {
        if(ps != null){
            ps.close();
        }
    } catch (SQLException e) {
        e.printStackTrace();
    }
    try {
        if(conn != null){
            conn.close();
        }
    } catch (SQLException e) {
        e.printStackTrace();
    }
}

}
}

图片是报错内容

Answer 1

数据库的用户名和密码写错了没有，还有就是路径写对，配置文件放对地方。