JSP学习笔记(三十)：freemarker入门例子
1.首先从官方下载freemarker的包，下载地址：http://freemarker.sourceforge.net/freemarkerdownload.html
2.把包lib/freemarker.jar拷贝到项目中
3.新建模板文件WEB-INF/templates/test.ftl，内容如下：
Hello,${name}!
4.新建一个操作类Class1.java，内容如下：
package com.abc.web;
import java.io.Writer;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.jsp.PageContext;
import freemarker.template.Configuration;
import freemarker.template.Template;
public class Class1 {
public void execute(PageContext pageContext) throws Exception
{
Configuration cfg = new Configuration();
cfg.setServletContextForTemplateLoading(pageContext.getServletContext(), "WEB-INF/templates");
Map root = new HashMap();
root.put("name", "Tom");
Template t = cfg.getTemplate("test.ftl");
Writer out = pageContext.getResponse().getWriter();
t.process(root, out);
}
}
import java.io.Writer;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.jsp.PageContext;
import freemarker.template.Configuration;
import freemarker.template.Template;
public class Class1 {
public void execute(PageContext pageContext) throws Exception
{
Configuration cfg = new Configuration();
cfg.setServletContextForTemplateLoading(pageContext.getServletContext(), "WEB-INF/templates");
Map root = new HashMap();
root.put("name", "Tom");
Template t = cfg.getTemplate("test.ftl");
Writer out = pageContext.getResponse().getWriter();
t.process(root, out);
}
}
5.新建一个jsp页面test1.jsp，内容如下：
<%@ page language="java" contentType="text/html; charset=GB2312"
pageEncoding="GB2312"%>
<%@ page import="com.abc.web.Class1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GB2312">
<title>Insert title here</title>
</head>
<body>
<%
Class1 c1 = new Class1();
c1.execute(pageContext);
%>
</body>
</html>
pageEncoding="GB2312"%>
<%@ page import="com.abc.web.Class1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GB2312">
<title>Insert title here</title>
</head>
<body>
<%
Class1 c1 = new Class1();
c1.execute(pageContext);
%>
</body>
</html>
页面的显示效果为：
Hello,Tom!
这里有一份非常详细的freemarker的技术文档：http://www.sunjava.cn/FreeMarker.htm
