servlet中读取properties信息报空指针的问题

Question

public class JdbcUtils {
//方法一
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("user.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
有值就是获取连接成功
*/
public static Connection get_connection(){
Connection conn = null;
try {
conn = dataSource.getConnection();
} catch (Exception e) {
e.printStackTrace();
}
return conn;
}

//方法二
 public static Connection get_connection()  {
    String path= "user.properties";
    Connection connection = null;
    InputStream is = null;
    try {
        Properties pro = new Properties();
        is = JdbcUtils.class.getClassLoader().getSystemResourceAsStream("user.properties");
        pro.load(is);

        DataSource dataSource = DruidDataSourceFactory.createDataSource(pro);
        connection = dataSource.getConnection();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if(is != null){
            try {
                is.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    return connection;
}

    结果就是第二种方法会报空指针异常
    ![图片说明](https://img-ask.csdn.net/upload/202008/27/1598496713_753949.png)

    求大佬解答两种方法有什么区别

Answer 1

is = JdbcUtils.class.getClassLoader().getSystemResourceAsStream("user.properties");
这里似乎没有读取到配置文件