thymeleaf

時間 2019-11-11

標籤 thymeleaf 简体版

原文原文鏈接

1、引入場景html

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>

2、SpringBoot 自動配置原理中的 thymeleaf 的自動配置規則java

只要咱們把 HTM L頁面放在 classpath:/templates/，thymeleaf 就能自動渲染；spring

@ConfigurationProperties(prefix = "spring.thymeleaf")
public class ThymeleafProperties {
　　private static final Charset DEFAULT_ENCODING = Charset.forName("UTF‐8");
　　private static final MimeType DEFAULT_CONTENT_TYPE = MimeType.valueOf("text/html");
　　//前綴
　　public static final String DEFAULT_PREFIX = "classpath:/templates/";
　　//後綴
　　public static final String DEFAULT_SUFFIX = ".html";

3、thymeleaf 使用express

一、導入 thymeleaf 的名稱空間（導入該名稱空間後，就會有 thymeleaf 語法提示了）api

<html lang="en" xmlns:th="http://www.thymeleaf.org">

二、helloworldsession

java 代碼
@Controller
public class HelloController {

    @RequestMapping("/success")
    public String success(Model model){
        model.addAttribute("msg", "你好");
        return "success";
    }
    
}

html 代碼
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <!--th:text 將div裏面的文本內容設置爲 ${msg}-->
    <div th:text="${msg}"></div>

</body>
</html>

View Code

4、thymeleaf 語法規則app

一、th:text；改變當前元素裏面的文本內容；
th：任意html屬性；來替換原生屬性的值ide

二、 thymeleaf 支持的表達式spring-boot

${...}：獲取變量值；OGNL；
1）、獲取對象的屬性、調用方法
2）、使用內置的基本對象：例如：${session.foo}
　　#ctx : the context object.
　　#vars: the context variables.
　　#locale : the context locale.
　　#request : (only in Web Contexts) the HttpServletRequest object.
　　#response : (only in Web Contexts) the HttpServletResponse object.
　　#session : (only in Web Contexts) the HttpSession object.
　　#servletContext : (only in Web Contexts) the ServletContext object.3）、內置的一些工具類對象　　#execInfo : information about the template being processed.　　#messages : methods for obtaining externalized messages inside variables expressions, in the same way as they would be obtained using #{…} syntax.　　#uris : methods for escaping parts of URLs/URIs　　#conversions : methods for executing the configured conversion service (if any).　　#dates : methods for java.util.Date objects: formatting, component extraction, etc.　　#calendars : analogous to #dates , but for java.util.Calendar objects.　　#numbers : methods for formatting numeric objects.　　#strings : methods for String objects: contains, startsWith, prepending/appending, etc.　　#objects : methods for objects in general.　　#bools : methods for boolean evaluation.　　#arrays : methods for arrays.　　#lists : methods for lists.　　#sets : methods for sets.　　#maps : methods for maps.　　#aggregates : methods for creating aggregates on arrays or collectio　　#ids : methods for dealing with id attributes that might be repeated (for example, as a result of an iteration).4）、*{...}：選擇表達式：和${}在功能上是同樣；　　補充：配合 th:object="${session.user}：　　　　<div th:object="${session.user}">　　　　　　<p>Name: <span th:text="*{firstName}">Sebastian</span>.</p>　　　　　　<p>Surname: <span th:text="*{lastName}">Pepper</span>.</p>　　　　　　<p>Nationality: <span th:text="*{nationality}">Saturn</span>.</p>　　　　</div>5）、　　#{...}：獲取國際化內容　　@{...}：定義URL；@{/order/process(execId=${execId},execType='FAST')}　　: ~{...}：片斷引用表達式；<div th:insert="~{commons :: main}">...</div>6）、　　Literals（字面量）　　字符串　　數字　　Boolean　　Null　　字符串拼接； |The name is ${name}|　　數學運算； + , ‐ , * , / , %

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