Thymeleaf 个人笔记

朴灿烈づ我的快乐病毒、 2023-06-25 06:04 1阅读 0赞

## **视图应用** ##

<table> 
 <tbody> 
  <tr> 
   <td>资源（模板来源 ）</td> 
   <td>上下文（变量来源 ）</td> 
   <td>模板引擎（模板渲染）</td> 
  </tr> 
  <tr> 
   <td> <p>通用资源抽象：File、ClassLoader、URL、ServletContext</p> <p>Spring 资源抽象：Resource</p> </td> 
   <td> <p>Thyemeaf：Context</p> <p>Spring Web MVC：Model</p> <p>Servlet：Attribute</p> </td> 
   <td> <p>Thymeleaf：TemplateEngine</p> <p>Spring：SpringTemplateEngine</p> <p>Spring WebFlux：SpringWebFluxTemplateEngine</p> </td> 
  </tr> 
 </tbody> 
</table>

模板来源：Resource。变量来源：Context。模板渲染：SpringTemplateEngine

public class ThymeleafTemplateEngineBootstrap {
    
        public static void main(String[] args) throws IOException {
            // 构建引擎
            SpringTemplateEngine templateEngine = new SpringTemplateEngine();
            // 创建渲染上下文
            Context context = new Context();
            context.setVariable("message", "Hello,World");
    
            // 读取内容从 classpath:/templates/thymeleaf/hello-world.html
            // ResourceLoader
            ResourceLoader resourceLoader = new DefaultResourceLoader();
            // 通过 classpath:/templates/thymeleaf/hello-world.html Resource
            Resource resource = resourceLoader.getResource("classpath:/templates/thymeleaf/hello-world.html");
            File templateFile = resource.getFile();
            // 文件流
            FileInputStream inputStream = new FileInputStream(templateFile);
            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
            // Copy
            IOUtils.copy(inputStream, outputStream);
    
            inputStream.close();
            // 模板的内容
            String content = outputStream.toString("UTF-8");
            // 渲染（处理）结果
            String result = templateEngine.process(content, context);
            // 输出渲染（处理）结果
            System.out.println(result);
        }
    }

Thymeleaf能够处理HTML，XML，JavaScript，CSS甚至纯文本。

**1、六种模式格式**

*  HTML （网页）
 *  XML (配置)
 *  TEXT (文本)
 *  JAVASCRIPT （js）
 *  CSS （样式）
 *  RAW （无格式）

**2、简单demo**

*  pom

<dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-thymeleaf</artifactId>
            </dependency>        
            
            <dependency>
                <groupId>net.sourceforge.nekohtml</groupId>
                <artifactId>nekohtml</artifactId>
                <version>1.9.22</version>
            </dependency>

*  application.yml

spring:
      thymeleaf:
        cache: false # 开发时关闭缓存,不然没法看到实时页面
        mode: HTML # 用非严格的 HTML
        encoding: UTF-8
        servlet:
          content-type: text/html

public class PersonBean implements Serializable {
    
        private String name;
        private Integer age;
    
        public String getName() {
            return name;
        }
    
        public void setName(String name) {
            this.name = name;
        }
    
        public Integer getAge() {
            return age;
        }
    
        public void setAge(Integer age) {
            this.age = age;
        }
    }

@Controller
    @RequestMapping(value = "thymeleaf")
    public class IndexController {
    
        @RequestMapping(value = "index", method = RequestMethod.GET)
        public String index(Model model) {
            PersonBean person = new PersonBean();
            person.setName("张三");
            person.setAge(22);
    
            List<PersonBean> people = new ArrayList<>();
            PersonBean p1 = new PersonBean();
            p1.setName("李四");
            p1.setAge(23);
            people.add(p1);
    
            PersonBean p2 = new PersonBean();
            p2.setName("王五");
            p2.setAge(24);
            people.add(p2);
    
            PersonBean p3 = new PersonBean();
            p3.setName("赵六");
            p3.setAge(25);
            people.add(p3);
    
            model.addAttribute("person", person);
            model.addAttribute("people", people);
    
            return "index";
        }
    }

resources/templates/index.html

<!DOCTYPE html SYSTEM "http://www.thymeleaf.org/dtd/xhtml1-strict-thymeleaf-spring4-4.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org">
    <head>
        <meta charset="UTF-8">
        <title>Hello Thymeleaf</title>
    </head>
    <body>
    <div>
        <span>访问 Model：</span><span th:text="${person.name}"></span>
    </div>
    <div>
        <span>访问列表</span>
        <table>
            <thead>
            <tr>
                <th>姓名</th>
                <th>年龄</th>
            </tr>
            </thead>
            <tbody>
            <tr th:each="human : ${people}">
                <td th:text="${human.name}"></td>
                <td th:text="${human.age}"></td>
            </tr>
            </tbody>
        </table>
    </div>
    </body>
    </html>

使用语法

[https://www.jianshu.com/p/908b48b10702][https_www.jianshu.com_p_908b48b10702]

[https_www.jianshu.com_p_908b48b10702]: https://www.jianshu.com/p/908b48b10702