JAVA入门[22]—thymeleaf
一、thymeleaf官網
官網:https://www.thymeleaf.org/index.html
doc:https://www.thymeleaf.org/documentation.html
二、springmvc+thymeleaf從這里開始
1.修改pom.xml,引入相關依賴。
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | <dependencies> ????????<dependency> ????????????<groupId>junit</groupId> ????????????<artifactId>junit</artifactId> ????????????<version>3.8.1</version> ????????????<scope>test</scope> ????????</dependency> ????????<!-- https://mvnrepository.com/artifact/org.thymeleaf/thymeleaf --> ????????<dependency> ????????????<groupId>org.thymeleaf</groupId> ????????????<artifactId>thymeleaf</artifactId> ????????????<version>3.0.2.RELEASE</version> ????????</dependency> ????????<!-- https://mvnrepository.com/artifact/org.thymeleaf/thymeleaf-spring4 --> ????????<dependency> ????????????<groupId>org.thymeleaf</groupId> ????????????<artifactId>thymeleaf-spring4</artifactId> ????????????<version>2.1.2.RELEASE</version> ????????</dependency> </dependendies> |
2.xml方式配置thymeleaf視圖解析器:
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | <!-- Thymeleaf View Resolver - implementation of Spring's ViewResolver?interface?--> ????<bean id="viewResolver"?class="org.thymeleaf.spring4.view.ThymeleafViewResolver"> ????????<property name="templateEngine"?ref="templateEngine"?/> ????????<property name="characterEncoding"?value="UTF-8"?/> ????</bean> ????<!-- Thymeleaf Template Engine (Spring4-specific version) --> ????<bean id="templateEngine"?class="org.thymeleaf.spring4.SpringTemplateEngine"> ????????<property name="templateResolvers"> ????????????<set> ????????????????<ref bean="templateResolver"?/> ????????????</set> ????????</property> ????</bean> ????<!-- Thymeleaf Template Resolver --> ????<bean id="templateResolver"?class="org.thymeleaf.spring4.templateresolver.SpringResourceTemplateResolver"> ????????<property name="prefix"?value="/WEB-INF/templates/"?/> ????????<property name="templateMode"?value="HTML"?/> ????????<property name="suffix"?value=".html"></property> ????????<property name="characterEncoding"?value="UTF-8"></property> ????</bean> |
3.在controller中為變量name賦值。
| 1 2 3 4 5 | @RequestMapping(value="/index") public?String index(Model model){ ????model.addAttribute("name","world"); ????return?"index.html"; } |
4.在index.html中使用thymeleaf語法讀取變量name的值。
| 1 2 3 4 5 6 7 8 9 | <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"?xmlns:th="http://www.thymeleaf.org"> <head> ????<title>Title</title> </head> <body> <div>your name is:<span th:text="${name}"></span></div> </body> </html> |
注意:需要修改html節點,添加xmlns:th="http://www.thymeleaf.org"
三、thymeleaf常見問題小結
1.如何添加鏈接:
| 1 | <a th:href="@{/category/index}">首頁</a> |
2.表單綁定示例:
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | <form method="post"?th:object="${cate}"?th:action="@{/category/save}"?enctype="multipart/form-data"> ????????<table> ????????????<tr> ????????????????<td>id:</td> ????????????????<td><input type="text"?th:field="*{cateId}"></td> ????????????</tr> ????????????<tr> ????????????????<td>name:</td> ????????????????<td><input type="text"?th:field="*{cateName}"></td> ????????????</tr> ????????????<tr> ????????????????<td>file:</td> ????????????????<td> ????????????????????<input type="file"?accept="image/jpeg,image/png,image/jpg"?name="picture"> ????????????????</td> ????????????</tr> ????????????<tr> ????????????????<td colspan="2"> ????????????????????<input type="submit"?value="提交"> ????????????????</td> ????????????</tr> ????????</table> ????</form> |
3.展示文本
| 1 | <td th:text="${r.name}"></td> |
如何替換子字符串
| 1 | <span th:text="|welcome,${name}|"></span> |
如何轉換日期格式
| 1 | ${#dates.format(v.AddDate,'yyyy-MM-dd HH:mm:ss')} |
4.如何在js讀取后臺數據
| 1 | var url="[[${url}]]"; |
5.條件表達式
| 1 | <td th:text="(${r.deleteFlag}==0)?'正常':'刪除'"></td> |
6.thymeleaf如何實現switch選擇
| 1 2 3 4 5 | <td th:switch="${r.type}"> ????<span th:case="page">頁面</span> ????<span th:case="module">模塊</span> ????<span th:case="*">其他</span> </td> |
注意:默認值 用th:case="*"
7.th:object語法
首先在controller為對象賦值
| 1 2 3 4 5 6 7 8 9 10 11 12 | @Controller @RequestMapping("/demo") public?class?DemoController { ????@RequestMapping("/index") ????public?String index(Model model){ ????????OrgResource resource=new?OrgResource(); ????????resource.setId("11"); ????????resource.setName("test"); ????????model.addAttribute("resource",resource); ????????return?"demo/index.html"; ????} } |
使用*{}語法可以方便讀取th:object對象的屬性。
| 1 2 3 4 | <div th:object="${resource}"> ????<div th:text="*{id}"></div> ????<div th:text="*{name}"></div> </div> |
8.迭代 th:each
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 | <th:block th:each="r,iterstat:${resources}"> ????<tr th:class="${iterstat.odd}?'odd'"> ????????<td th:text="${r.orderNo}"></td> ????????<td th:switch="${r.type}"> ????????????<span th:case="page">頁面</span> ????????????<span th:case="module">模塊</span> ????????</td> ????????<td th:text="(${r.deleteFlag}==0)?'正常':'刪除'"></td> ????????<td th:switch="${r.deleteFlag}"> ????????????<span th:case="0"><a>刪除</a></span> ????????????<span th:case="1"><a>恢復</a></span> ????????</td> ????</tr> </th:block> |
9.如何使用Fragment layout布局
首先新建layout.html作為布局模板。
| 1 2 3 4 5 6 7 8 9 10 11 | <!DOCTYPE html> <html lang="zh-CN"?xmlns:layout="http://www.thymeleaf.org"?xmlns:th="http://www.thymeleaf.org"> <head> ????<meta charset="UTF-8"> ????<title>Title</title> </head> …… <body> <div layout:fragment="content"></div> </body> </html> |
然后在index.html中使用layout,并用頁面具體內容替代content fragment。
| 1 2 3 4 5 6 7 8 9 10 11 12 | <!DOCTYPE html> <html layout:decorator="task/layout"?xmlns:layout="http://www.w3.org/1999/xhtml"> <head> ????<meta charset="UTF-8"> ????<title>Title</title> </head> <body> <div layout:fragment="content"> ??測試頁面 </div> </body> </html> |
第一次使用layout布局的時候,調試了好半天就是不生效。后來找到了原因,dependency需要添加:
| 1 2 3 4 5 | <dependency> ????<groupId>nz.net.ultraq.thymeleaf</groupId> ????<artifactId>thymeleaf-layout-dialect</artifactId> ????<version>${nz.net.ultraq.thymeleaflayout-version}</version> </dependency> |
10.如何用if條件動態調整form action
| 1 | <form th:action="@{/Video/{path}(path=${isCollect}?'CollectVideoList':'VideoList')}"> |
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? ? 本文轉自 陳敬(Cathy) 博客園博客,原文鏈接:http://www.cnblogs.com/janes/p/7234465.html,如需轉載請自行聯系原作者
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