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一:概括
- pom.xml添加依赖
- 配置application.yml
- HTML页面使用表达式
二:Freemarker模板引擎
1.添加依赖
<!-- ftl模板引擎 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-freemarker</artifactId>
</dependency>
2.配置参数
#Freemarker模板引擎
spring:
freemarker:
template-loader-path:
- classpath:/templates
charset: UTF-8
check-template-location: true
content-type: text/html
expose-request-attributes: true
expose-session-attributes: true
request-context-attribute: request
suffix: .ftl
cache: false
#关闭缓存,及时刷新,上线需要改成true
3.模板使用
在templates文件夹下新建freemarker文件夹,然后在该文件夹下新建index.html
<!DOCTYPE>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></meta>
<title>Freemarket</title>
</head>
<body>
${message}
</body>
</html>
4.Controller返回视图
@Controller()
@RequestMapping("/ftl")
public class FtlController {
@GetMapping("/hello")
public String hello(ModelMap map) {
map.addAttribute("message", "Hello! freemarket!");
return "/freemarker/index";
}
}
三:Thymeleaf模板引擎
1.添加依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
2.配置参数(一般情况不用配置)
#Thymeleaf 静态资源配置
spring:
thymeleaf:
prefix: classpath:/templates/
suffix: .html
mode: HTML5
encoding: UTF-8
content-type: text/html
cache: false
#关闭缓存,即使刷新,上线需要改成true
#i18n配置
messages:
basename: i18n/messages
cache-seconds: 3600
encoding: UTF-8
在源文件夹下新建i18n/messages文件夹目录,在该目录下新建messages.properties:
roles<span class="hljs-preprocessor">.manager</span>=manager
roles<span class="hljs-preprocessor">.superadmin</span>=superadmin
2.模板使用
thymeleaf涉及的标签很多
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head lang="en">
<meta charset="UTF-8" />
<title></title>
<!-- <script th:src="@{/js/test.js}"></script> -->
</head>
<body>
<!--@{}是用来输出内容的,${}是用来输出对象的,#{}是输出i18n的参数-->
<div>
用户姓名:<input th:id="${user.name}" th:name="${user.name}" th:value="${user.name}"/>
<br/>
用户年龄:<input th:value="${user.age}"/>
<br/>
用户生日:<input th:value="${user.birthday}"/>
<br/>
用户生日:<input th:value="${#dates.format(user.birthday, 'yyyy-MM-dd')}"/>
<br/>
</div>
<br/>
<div th:object="${user}">
用户姓名:<input th:id="*{name}" th:name="*{name}" th:value="*{name}"/>
<br/>
用户年龄:<input th:value="*{age}"/>
<br/>
用户生日:<input th:value="*{#dates.format(birthday, 'yyyy-MM-dd hh:mm:ss')}"/>
<br/>
</div>
<br/>
text 与 utext :<br/>
<span th:text="${user.desc}">abc</span>
<br/>
<span th:utext="${user.desc}">abc</span>
<br/>
<br/>
URL:<br/>
<a href="" th:href="@{http://www.imooc.com}">网站地址</a>
<br/>
<br/>
<form th:action="@{/th/postform}" th:object="${user}" method="post" th:method="post">
<input type="text" th:field="*{name}"/>
<input type="text" th:field="*{age}"/>
<input type="submit"/>
</form>
<br/>
<br/>
<div th:if="${user.age} == 18">十八岁的天空</div>
<div th:if="${user.age} gt 18">你老了</div>
<div th:if="${user.age} lt 18">你很年轻</div>
<div th:if="${user.age} ge 18">大于等于</div>
<div th:if="${user.age} le 18">小于等于</div>
<br/>
<br/>
<select>
<option >选择框</option>
<option th:selected="${user.name eq 'lee'}">lee</option>
<option th:selected="${user.name eq 'imooc'}">imooc</option>
<option th:selected="${user.name eq 'LeeCX'}">LeeCX</option>
</select>
<br/>
<br/>
<table>
<tr>
<th>姓名</th>
<th>年龄</th>
<th>年龄备注</th>
<th>生日</th>
</tr>
<tr th:each="person:${userList}">
<td th:text="${person.name}"></td>
<td th:text="${person.age}"></td>
<td th:text="${person.age gt 18} ? 你老了 : 你很年轻">18岁</td>
<td th:text="${#dates.format(user.birthday, 'yyyy-MM-dd hh:mm:ss')}"></td>
</tr>
</table>
<br/>
<br/>
<!--i18n配置-->
<div th:switch="${user.name}">
<p th:case="'lee'">lee</p>
<p th:case="#{roles.manager}">普通管理员</p>
<p th:case="#{roles.superadmin}">超级管理员</p>
<p th:case="*">其他用户</p>
</div>
<br/>
</body>
</html>
4.Controller返回视图
@Controller
@RequestMapping("th")
public class ThymeleafController {
@RequestMapping("/index")
public String index(ModelMap map) {
map.addAttribute("name", "thymeleaf-imooc");
return "thymeleaf/index";
}
@RequestMapping("center")
public String center() {
return "thymeleaf/center/center";
}
@RequestMapping("test")
public String test(ModelMap map) {
User u = new User();
u.setName("superadmin");
u.setAge(10);
u.setPassword("123465");
u.setBirthday(new Date());
u.setDesc("<font color='green'><b>hello imooc</b></font>");
map.addAttribute("user", u);
User u1 = new User();
u1.setAge(19);
u1.setName("imooc");
u1.setPassword("123456");
u1.setBirthday(new Date());
User u2 = new User();
u2.setAge(17);
u2.setName("LeeCX");
u2.setPassword("123456");
u2.setBirthday(new Date());
List<User> userList = new ArrayList<>();
userList.add(u);
userList.add(u1);
userList.add(u2);
map.addAttribute("userList", userList);
return "thymeleaf/test";
}
@PostMapping("postform")
public String postform(User u) {
System.out.println("姓名:" + u.getName());
System.out.println("年龄:" + u.getAge());
return "redirect:/th/test";
}
@RequestMapping("showerror")
public String showerror(User u) {
int a = 1 / 0;
return "redirect:/th/test";
}
}
版权声明
【本文版权归微信公众号"代码艺术"(ID:onblog)所有,若是转载请务必保留本段原创声明,违者必究。若是文章有不足之处,欢迎关注微信公众号私信与我进行交流!】