登 录
今天上午做了个FreeMarker在web中的小例子，分享下。
1、FreeMarker.java
package com.lijigou.freemarker;</p> <p>import java.io.IOException;<br /> import java.io.PrintWriter;<br /> import java.util.ArrayList;<br /> import java.util.HashMap;<br /> import java.util.List;<br /> import java.util.Locale;<br /> import java.util.Map;</p> <p>import javax.servlet.ServletException;<br /> import javax.servlet.http.HttpServlet;<br /> import javax.servlet.http.HttpServletRequest;<br /> import javax.servlet.http.HttpServletResponse;</p> <p>import freemarker.template.Configuration;<br /> import freemarker.template.ObjectWrapper;<br /> import freemarker.template.Template;<br /> import freemarker.template.TemplateException;<br /> import freemarker.template.TemplateExceptionHandler;</p> <p>@SuppressWarnings("serial")<br /> public class FreeMarker extends HttpServlet {</p> <p> private Configuration cfg = null;</p> <p> public void init() throws ServletException {<br /> //创建Configuration实例<br /> cfg = new Configuration();<br /> //设置模板路径<br /> cfg.setServletContextForTemplateLoading(getServletContext(), "WEB-INF/templates");<br /> //设置编码格式<br /> cfg.setEncoding(Locale.getDefault(), "UTF-8");<br /> }</p> <p> public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {</p> <p> doPost(request, response);<br /> }</p> <p> @SuppressWarnings("unchecked")<br /> public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {</p> <p> response.setContentType("text/html");<br /> PrintWriter out = response.getWriter();<br /> //加载template模板<br /> Template template = cfg.getTemplate("test.ftl");<br /> template.setTemplateExceptionHandler(TemplateExceptionHandler.DEBUG_HANDLER);<br /> //设置对象包装器<br /> template.setObjectWrapper(ObjectWrapper.BEANS_WRAPPER);</p> <p> //设置data<br /> Map map = new HashMap();<br /> List<User> list = new ArrayList<User>();<br /> for(int i=0;i<10;i++){<br /> User user = new User();<br /> user.setUsername("username"+i);<br /> user.setPassword("password"+i);<br /> list.add(user);<br /> }<br /> map.put("list", list);<br /> try {</p> <p> //将data和template合并输出<br /> template.process(map, out);<br /> out.flush();<br /> } catch (TemplateException e) {<br /> e.printStackTrace();<br /> }</p> <p> }</p> <p>}<br />
2、User.java
package com.lijigou.freemarker;</p> <p>public class User {</p> <p> private String username;</p> <p> private String password;</p> <p> public String getUsername() {<br /> return username;<br /> }</p> <p> public void setUsername(String username) {<br /> this.username = username;<br /> }</p> <p> public String getPassword() {<br /> return password;<br /> }</p> <p> public void setPassword(String password) {<br /> this.password = password;<br /> }</p> <p>}<br />
3、test.ftl
<html><br /> <head><br /> <title>FreeMarker Example Web Application 1</title><br /> </head><br /> <body><br /> <table><br /> <#if list?exists && list?size gt 0><br /> <#list list as user><br /> <tr><br /> <td>${user.username?cap_first}</td><br /> <td>${user.password?cap_first}</td><br /> </tr><br /> </#list><br /> </#if></p> <p> </table><br /> </body><br /> </html>
4、web.xml
<?xml version="1.0" encoding="UTF-8"?><br /> <web-app version="2.5"<br /> xmlns="http://java.sun.com/xml/ns/javaee"<br /> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"<br /> xsi:schemaLocation="http://java.sun.com/xml/ns/javaee<br /> http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"><br /> <servlet><br /> <servlet-name>HelloWorldServlet</servlet-name><br /> <servlet-class>com.lijigou.freemarker.HelloWorldServlet</servlet-class><br /> </servlet><br /> <servlet><br /> <servlet-name>FreeMarker</servlet-name><br /> <servlet-class>com.lijigou.freemarker.FreeMarker</servlet-class><br /> </servlet></p> <p> <servlet-mapping><br /> <servlet-name>FreeMarker</servlet-name><br /> <url-pattern>/servlet/FreeMarker</url-pattern><br /> </servlet-mapping></p> <p> <welcome-file-list><br /> <welcome-file>index.jsp</welcome-file><br /> </welcome-file-list><br /> </web-app><br />
抱歉!评论已关闭.