JSP的常用語法<%=new java.util.Date()%>

1. <%=new java.util.Date()%>

2.index.jsp:

<form action="test.jsp">
    username : <input type="text" name="username" />
    <br />
    <input type="submit">
</form>

test.jsp:

Hello <%=request.getParameter("username")%>

Hello <%out.print(request.getParameter("username"));%>

3.index.jsp:

<form action="test.jsp">
    username : <input type="text" name="username" />
    <br />
    <input type="submit">
</form>

test.jsp:

<%@ page contentType="text/html; charset=gb2312"%>
<%
    String color = request.getParameter("color");
    if ("red".equals(color)) {
        request.getRequestDispatcher("red.jsp").forward(request, response);
    } else if ("green".equals(color)) {
        request.getRequestDispatcher("green.jsp").forward(request, response);
    }
%>

4.