JSP常用标签
jsp代码：
<%-- 和pageContext.include()一样效果，动态包含--%> <jsp:include page="/1.jsp"></jsp:include>
jsp代码：
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
</head>
<body>
<jsp:forward page="/servlet/IndexServlet"></jsp:forward>
</body>
</html>PS:因为web.xml中配置首页只能是jsp, 而首页往往需要servlet处理数据，所以就在首页index.jsp中使用来转发到servlet。<jsp:forward page="/servlet/IndexServlet"></jsp:forward>
jsp代码：
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>jsp常用标签</title>
</head>
<body>
<%
int x = 10;
%>
<jsp:forward page="/servlet/ServletDemo1">
<jsp:param name="username" value="<%=x %>"/>
<jsp:param name="password" value="123"/>
<jsp:param name="username" value="<%=x %>"/>
</jsp:forward>
</body>
</html>Servlet代码：public class ServletDemo1 extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String username = request.getParameter("username");
System.out.println(username);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}