servlet中调用方法

Question

Predicts.java

public class Predicts {
    public void predict() throws Exception {
    }
}

输出.java

public class Output extends HttpServlet {
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
  throws ServletException, IOException {
    }
}

在不同的 servlet 中，如何初始化 Predicts.java 中的方法并调用它？

Answer 1

this.predict();

无需创建新实例

Answer 2

从 Servlet 类创建一个对象并调用方法：

public class Output extends HttpServlet {

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {

     Predicts p = new Predicts();
     p.predict();
}
}