There are two methods available through the ServletConfig interface for working with init parameters.
通过ServletConfig接口提供了两个处理init参数的方法。
ServletConfig: A mechanism used by the container to pass configuration information to the servlet on initialization.
ServletConfig：容器用于在初始化时将配置信息传递给Servlet的机制。
ServletConfig: A mechanism used by the container to pass configuration information to the servlet on initialization.
ServletConfig：容器用于在初始化时将配置信息传递给Servlet的机制。
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