我有类似的要求，并且执行了以下操作：

I had the similar requirement and I did the followings:

1）在catalina.properties中添加了针对shared.loader的properties文件夹路径。
示例：

1) Added the properties folder path against shared.loader in catalina.properties. Example:

    shared.loader="c:/ExternalResource"

2）然后使用以下内容读取属性：-

2) Then read the properties using the following :-

Thread.currentThread().getContextClassLoader().getResourceAsStream(propertiesFileName)