Maven项目无法加载jdbc.properties的问题解决

package com.zxm.utils;
import java.io.InputStream;
import java.sql.Connection;
import java.util.Properties;
import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.pool.DruidDataSourceFactory;
public class JdbcUtils {
    private static DruidDataSource dataSource;
    static {
        try {
            Properties properties = new Properties();
            //读取jdbc.properties属性配置文件
            InputStream inputStream = JdbcUtils.class.getClassLoader().getResourceAsStream("jdbc.properties");
            //从流中加载数据
            properties.load(inputStream);
            //创建 数据库连接池
            dataSource = (DruidDataSource)DruidDataSourceFactory.createDataSource(properties);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    /**
     * 获取数据库连接池中的连接
     * @return 如果返回null，说明获取连接失败
     */
    public static Connection getConnection() {
        Connection conn = null;
        try {
            conn = dataSource.getConnection();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return conn;
    }
    /**
     * 关闭连接，放回数据库连接池
     * @param conn
     */
    public static void close(Connection conn) {
        if(conn != null) {
            try {
                conn.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
}

username = root
password = root
url = jdbc:mysql://localhost:3306/book
driverClassName = com.mysql.jdbc.Driver
initialSize = 5
maxActive = 10

import com.zxm.utils.JdbcUtils;
import org.junit.Test;
import java.sql.Connection;
/**
 * @author MIAO
 * @date 2022/2/20-20:16
 */
public class JdbcUtilsTest {
    @Test
    public void testJbdcUtils() {
        for(int i = 0;i < 100 ;i++) {
            Connection connection = JdbcUtils.getConnection();
            System.out.println(connection);
            JdbcUtils.close(connection);
        }
    }
}

url = jdbc:mysql://localhost:3306/book?useUnicode=true&characterEncoding=utf-8&allowMultiQueries=true&useSSL=false&serverTimezone=GMT%2B8