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  • servlet 初始化参数和上下文参数

     1   <!-- init(初始化)参数的调用 -->
     2   <servlet>
     3       <servlet-name>InitTest</servlet-name>
     4       <servlet-class>com.cqq.servlet.InitTestServlet</servlet-class>
     5       <init-param>
     6         <param-name>getInit</param-name>
     7         <param-value>Init的value</param-value>
     8     </init-param>
     9   </servlet>
    10   <servlet-mapping>
    11       <servlet-name>InitTest</servlet-name>
    12       <url-pattern>/InitTest</url-pattern>
    13   </servlet-mapping>
     <!-- 上下文参数 -->
      <context-param>
      	<param-name>contextPrm</param-name>
      	<param-value>这是上下文参数context param</param-value>
      </context-param>
    

      调用的方法示例

    	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
    			throws ServletException, IOException {
    			String getInit=getInitParameter("getInit");//初始化参数
    			resp.setContentType("text");//不加乱码
    			resp.getWriter().print(getInit);
    			String contextprm=this.getServletContext().getInitParameter("contextPrm");//上下文参数
    			resp.getWriter().println(contextprm);
    	}
    }
    

      

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  • 原文地址:https://www.cnblogs.com/hero-man/p/9012090.html
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