doGet() throws NamingException报错

做一个通过JNDI查找资源的小练习，Context = new InitialContext()，发现NamingException异常，eclipse编辑器只有catch的提示，没有throws的提示，强行在doGet()方法后throws NamingException会报"Exception NamingException is not compatible with throws clause in HttpServlet.doGet(HttpServletRequest, HttpServletResponse)"。

原因：查看HttpServlet中的doGet方法源码，

根据方法重写的原则，子类重写父类方法时，抛出的异常不能超过父类的范畴，因此在本例中，只能throws ServletException和IOEXception，其他异常必须catch使得编译通过。

时间： 2024-10-18 15:13:04

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