学习笔记(JSJ-ServletConfig设置servlet初始化信息)

servlet代码：

package com.y2.jsj.servlet;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class ServletConfig extends HttpServlet {
String valueOne=null;
String valueTwo=null;
@Override
public void init() throws ServletException {
// TODO 自动生成方法存根
valueOne=this.getInitParameter("Hellow");
valueTwo=this.getInitParameter("Good");
}

@Override
protected void service(HttpServletRequest arg0, HttpServletResponse arg1) throws ServletException, IOException {
// TODO 自动生成方法存根
arg1.getWriter().print(valueOne+"<br>");
arg1.getWriter().print(valueTwo);
}

}

web.xml代码：

<!-- ServletConfig 初始化servlet的初始化参数 -->
<servlet>
<servlet-name>Config</servlet-name>
<servlet-class>com.y2.jsj.servlet.ServletConfig</servlet-class>
<init-param><!-- 配置初始化参数一 -->
<param-name>Hellow</param-name>
<param-value>Hellow Monkey!</param-value>
</init-param>
<init-param><!-- 配置初始化参数二 -->
<param-name>Good</param-name>
<param-value>Good Monkey!</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>Config</servlet-name>
<url-pattern>/Config.do</url-pattern>
</servlet-mapping>

<servlet>
<servlet-name>ConfigOne</servlet-name>
<servlet-class>com.y2.jsj.servlet.ServletConfig</servlet-class>
<init-param><!-- 配置初始化参数一 -->
<param-name>Hellow</param-name>
<param-value>OnlyOne Hellow Monkey!</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>ConfigOne</servlet-name>
<url-pattern>/ConfigOne.td</url-pattern>
</servlet-mapping>