InitParameterServlet 예제

package com.oraclejava;

import javax.servlet.ServletConfig;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

public class InitParameterServlet extends HttpServlet {

@Override

public void init(ServletConfig config) throws ServletException {

// TODO Auto-generated method stub

super.init(config);

System.out.println("당신의 나이는 " + config.getInitParameter("age"));

}

}

---

web.xml

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">

  <display-name>HelloWeb</display-name>

  <welcome-file-list>

    <welcome-file>index.html</welcome-file>

    <welcome-file>index.htm</welcome-file>

    <welcome-file>index.jsp</welcome-file>

    <welcome-file>default.html</welcome-file>

    <welcome-file>default.htm</welcome-file>

    <welcome-file>default.jsp</welcome-file>

  </welcome-file-list>

  <servlet>

    <servlet-name>InitParameterServlet</servlet-name>

    <servlet-class>com.oraclejava.InitParameterServlet</servlet-class>

    <init-param>

      <param-name>age</param-name>

      <param-value>100</param-value>

    </init-param>

    <load-on-startup>1</load-on-startup>

  </servlet>

  <servlet>

    <servlet-name>InitParameterHelloServlet</servlet-name>

    <servlet-class>com.oraclejava.HelloServlet</servlet-class>

    <init-param>

      <param-name>age</param-name>

      <param-value>120</param-value>

    </init-param>

    <load-on-startup>1</load-on-startup>

  </servlet>

</web-app>