1.导入jar包（freemarker.jar）
2.web.xml配置一个普通servlet
<servlet> <servlet-name>hello</servlet-name> <servlet-class>example.HelloServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>hello</servlet-name> <url-pattern>/hello</url-pattern> </servlet-mapping>
3.建立一个模板文件WEB-INF/templates/test.ftl
<html> <head> <title>FreeMarker Example Web Application</title> </head> <body> <h3 style="color:red">${message}</h3> </body> </html>
4.Servlet控制器HelloServlet.java
package example; import java.util.*; import java.io.*; import javax.servlet.*; import javax.servlet.http.*; import freemarker.template.*; /** * This Servlet does not do anything useful, just prints "Hello World!". The * intent is to help you to get started if you want to build your own Controller * servlet that uses FreeMarker for the View. For more advanced example, see the * 2nd Web application example. */ public class HelloServlet extends HttpServlet { private Configuration cfg; public void init() { // Initialize the FreeMarker configuration; // - Create a configuration instance cfg = new Configuration(); // - Templates are stoted in the WEB-INF/templates directory of the Web app. cfg.setServletContextForTemplateLoading( getServletContext(), "WEB-INF/templates"); // In a real-world application various other settings should be explicitly // set here, but for the sake of brevity we leave it out now. See the // "webapp2" example for them. } protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { // Build the data-model Map root = new HashMap(); root.put("message", "测试Hello World!"); // Get the templat object Template t = cfg.getTemplate("test.ftl"); // Prepare the HTTP response: // - Use the charset of template for the output // - Use text/html MIME-type resp.setContentType("text/html; charset=" + t.getEncoding()); Writer out = resp.getWriter(); // Merge the data-model and the template try { t.process(root, out); } catch (TemplateException e) { throw new ServletException( "Error while processing FreeMarker template", e); } } }