初期化パラメータ

web.xml

作成場所

C:\user\lightbox\tomcat\WEB-INF

<?xml version="1.0" encoding="Shift_JIS" ?>
<web-app>
  <context-param>
    <param-name>DriverName</param-name>
    <param-value>sun.jdbc.odbc.JdbcOdbcDriver</param-value>
  </context-param>
  <context-param>
    <param-name>ConnectionUrl</param-name>
    <param-value>jdbc:odbc:SysMySQL</param-value>
  </context-param>
  <context-param>
    <param-name>ConnectionDbname</param-name>
    <param-value>lightbox</param-value>
  </context-param>
  <context-param>
    <param-name>ConnectionUser</param-name>
    <param-value>root</param-value>
  </context-param>
  <context-param>
    <param-name>ConnectionPass</param-name>
    <param-value></param-value>
  </context-param>
</web-app>

取得方法

<%@ page
	language="java"
	import="java.io.*"
	import="java.text.*"
	import="java.util.*"
	contentType="text/html;charset=shift_jis" %>
<%
response.setHeader( "Expires", "Wed, 31 May 2000 14:59:58 GMT" );
// *********************************************************
// web.xml のデータ取得
// *********************************************************

	Enumeration enumInit = application.getInitParameterNames();
	String strKey = "";
	String strValue = "";
	String strData = "";

	while( enumInit.hasMoreElements() ) {
		strKey = enumInit.nextElement().toString();
		strValue = application.getInitParameter(strKey);
		strData += strKey + " => " + strValue + "\n";
	}

%>
<HTML>
<BODY>
<!-- 埋め込みで出力 -->
<PRE>
<%= strData %>
</PRE>
</BODY>
</HTML>