FreeMarker之根据模型生成HTML代码
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。
