FreeMarker之根据模型生成HTML代码与FreeMarker根据模型生成Java代码，本质上是一样的，关于生成Java代码可以参考我的这篇文章:FreeMarker之根据模板生成Java代码
一、导入依赖
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>cn.test.freemarker</groupId>
<artifactId>testFreemarker</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.freemarker</groupId>
<artifactId>freemarker</artifactId>
<version>2.3.23</version>
</dependency>
</dependencies>
<build>
<finalName>testFreemarker</finalName>
</build>
</project>
二、编写模板
在src/main/java下新建templates包，并在该包下新建user.ftl,内容如下所示:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>用户信息</title>
<!-- 新 Bootstrap 核心 CSS 文件 -->
<link rel="stylesheet"
href="http://cdn.bootcss.com/bootstrap/3.3.0/css/bootstrap.min.css" />
</head>
<body style="font-family:'Courier New'">
<h3 class="text-center">这是用户${username}的信息页！</h3>
<div class="col-md-6 column">
<table class="table table-bordered">
<tr>
<th>用户名</th>
<th>密码</th>
<th>年龄</th>
<th>地址</th>
</tr>
<tr>
<td>${username}</td>
<td>${password}</td>
<td>${age}</td>
<td>${address}</td>
</tr>
</table>
</div>
</body>
</html>
三、编写Java代码
在src/main/java新增testFreeMarker包，并在该包下创建该两个Java文件
User.java
package testFreemarker;
public class User {
private String username;
private String password;
private Integer age;
private String address;
public User() {
super();
// TODO Auto-generated constructor stub
}
public User(String username, String password, Integer age, String address) {
super();
this.username = username;
this.password = password;
this.age = age;
this.address = address;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
}
CreateHtmlByFreemarker.java
package testFreemarker;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.util.HashMap;
import java.util.Map;
import freemarker.core.ParseException;
import freemarker.template.Configuration;
import freemarker.template.MalformedTemplateNameException;
import freemarker.template.Template;
import freemarker.template.TemplateException;
import freemarker.template.TemplateNotFoundException;
public class CreateHtmlByFreemarker {
private static final String TEMPLATE_PATH = "src/main/java/templates";
private static final String CLASS_PATH = "src/main/webapp/product";
public static void main(String[] args) {
// step1 创建freeMarker配置实例
Configuration configuration = new Configuration();
Writer out = null;
try {
// step2 获取模版路径
configuration.setDirectoryForTemplateLoading(new File(TEMPLATE_PATH));
// step3 创建数据模型
Map<String, Object> dataMap = new HashMap<String, Object>();
dataMap.put("username", "zhangsan");
dataMap.put("password", "123456");
dataMap.put("age", "18");
dataMap.put("address", "test");
// step4 加载模版文件
Template template = configuration.getTemplate("user.ftl");
// step5 生成数据
File docFile = new File(CLASS_PATH + "\\" + "user.html");
out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(docFile)));
// step6 输出文件
template.process(dataMap, out);
System.out.println("^^^^^^^^^^^^^^^^^^^^^^^^user.ftl 文件创建成功 !");
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (null != out) {
out.flush();
}
} catch (Exception e2) {
e2.printStackTrace();
}
}
}
}
四、运行CreateHtmlByFreemarker.java
一般运行不报错并输出user.ftl创建成功的输出语句就表示成功，这时只需刷新下，就可以在对应的目录下看到通过模板生成的html文件。
