jsp页面的使用
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//1.获取资源文件
InputStream is=this.getServletContext().getResourceAsStream("/WEB-INF/classes/db.properties");
String value="aaaa"; this.getServletContext().setAttribute("data", value); request.setAttribute("value", value); this.getServletContext().getRequestDispatcher("/1.jsp").forward(request, response); }
1.jsp
<body>
<%
String value = (String) request.getAttribute("value");
String data = (String) application.getAttribute("data");
out.write("data:" + data);
out.write("value:" + value);
%>
This is my JSP page.
<br>
</body>
</html>
获取配置文件
InputStream is = this.getServletContext().getResourceAsStream( "/WEB-INF/classes/db.properties");
Properties prop = new Properties(); prop.load(is);
String url = prop.getProperty("dburl");
String username = prop.getProperty("username");
String password = prop.getProperty("password");
System.out.println(url + " " + username + " " + password);
//获取硬盘上的实际路径
String db = this.getServletContext().getRealPath("/WEB-INF/classes/db.properties");
