servlet 初始化參數和上下文參數

  <!-- init(初始化)參數的調用 -->
  <servlet>
      <servlet-name>InitTest</servlet-name>
      <servlet-class>com.cqq.servlet.InitTestServlet</servlet-class>
      <init-param>
        <param-name>getInit</param-name>
        <param-value>Init的value</param-value>
    </init-param>
  </servlet>
  <servlet-mapping>
      <servlet-name>InitTest</servlet-name>
      <url-pattern>/InitTest</url-pattern>
  </servlet-mapping>

 <!-- 上下文參數 -->
  <context-param>
  	<param-name>contextPrm</param-name>
  	<param-value>這是上下文參數context param</param-value>
  </context-param>

　　調用的方法示例

	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
			String getInit=getInitParameter("getInit");//初始化參數
			resp.setContentType("text");//不加亂碼
			resp.getWriter().print(getInit);
			String contextprm=this.getServletContext().getInitParameter("contextPrm");//上下文參數
			resp.getWriter().println(contextprm);
	}
}