jsp或servlet页面代码：

复制代码 代码如下:

String driver = application. getIni tParameter ("driver") ;

String url = application.getInitParameter("url");

String user = application.getInitParameter("user");

String pass = application.getInitParameter("pass");

web.xml需要读取的内容：

复制代码 代码如下:

<context-param>

<param-name>driver</param-name>

<param-value>com.mysql.jdbc.Driver</param-value>

</context-param>

<context-param>

<param-name>url</param-name>

<param-value>jdbc:mysql://localhost:3306/j2ee</param-value>

</context-param>

<context-param>

<param-name>user</param-name>

<param-value>root</param-value>

</context-param>

<context-param>

<param-name>pass</param-name>

<param-value>32l47</param-value>

</context-param>