Java Web 回顾总结(四) -servlet初始化参数 - web.xml

Servlet 参数配置

1、配置Servlet初始化参数

web.xml

<init-param>

servlet

<servlet>
<servlet-name>Demon1</servlet-name>
<servlet-class>com.servlet.rep.Demon1</servlet-class>

<init-param>
<param-name>login</param-name>
<param-value>admin</param-value>
</init-param>
<init-param>
<param-name>password</param-name>
<param-value>123</param-value>
</init-param>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF8</param-value>
</init-param>

</servlet>
<servlet-mapping>
<servlet-name>Demon1</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>

2、初始化参数的调用

ServletConfig

servlet

<init-param>

servlet

ServletConfig

servlet

init

ServletConfig

servlet

String login ;
String pass;
public void init(ServletConfig config) throws ServletException {
ServletConfig config1 = config;
this.login =config1.getInitParameter("login");
this.pass = config1.getInitParameter("password");
}