1.JSP page Element Introduction and page directive 2.JSP Comment, 3 different annotations<!--I'm an HTML comment, visible on the client--<%--I am a JSP comment that is not visible on the client--%>
<% //I am a script line comment / * I'm a script multiline comment script Comment not visible on client * / %>
3.JSP script for writing scripts, syntax: <%%><%Out.print ("Welcome you to learn Java EE course"); %>
4.JSP Declaration,used to declare Java variables or partieslaw, Syntax: <%! variable or method%><%! String s="China"; int Add (int x,int y) { return x+y; } %>
5.JSP expression, an expression executed in a JSP page (invoking a declared variable or function), syntax: <%= expression%>//Note expression does not end with good points Hello,<%=s%>5+10=<%=Add (5,10) %>
6.JSP page life cycle 7. Related Exercises
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<%@page import="org.apache.jasper.tagplugins.jstl.core.Out"%><%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><metahttp-equiv="Content-Type"content="text/html; charset=ISO-8859-1"><title>九九乘法表</title></head><body> <h1>九九乘法表</h1> <hr> <%! //通过表达式来实现 String printMultiTable1(){ String s=""; for(int i=1;i<=9;i++){ for(int j=1;j<=i;j++){ s+=j+"*"+i+"="+(i*j)+" "; } s+="<br>"; } return s; } //使用脚本来实现 void printMultiTable2(JspWriter out)throws Exception{ for(int i=1;i<=9;i++){ for(int j=1;j<=i;j++){ out.println(j+"*"+i+"="+(i*j)+" "); } out.println("<br>"); } } %> <%=printMultiTable1() %> <hr> <% printMultiTable2(out); %></body></html> |
From for notes (Wiz)
Java's JSP basic syntax
