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除了REST Web Service 之外，还可以使用Spring MVC来服务动态HTML内容。Spring MVC支持多种模板技术，包括Thymeleaf，FreeMarker，和JSPs。此外，许多其他模板引擎包括它们自己的Spring MVC集成。
这篇来讲解下Spring Boot 2.x 和Thymeleaf 页面模板引擎的集成。
1.添加依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
2.配置模板前缀和后缀
# 内嵌容器配置
server.port=8080
server.servlet.context-path=/
## Thymeleaf 配置
# Thymeleaf 模板配置前缀
spring.thymeleaf.prefix=classpath:/templates/
# Thymeleaf 模板配置后缀
spring.thymeleaf.suffix=.html
spring.thymeleaf.mode=HTML
spring.thymeleaf.encoding=UTF-8
spring.thymeleaf.servlet.content-type=text/html
# 关闭缓存，即时刷新，上线生产环境需改成true
spring.thymeleaf.cache=false
3.定义一个实体类
User.java
package com.xingyun.springbootwiththymeleafsample.model;
import java.io.Serializable;
public class User implements Serializable {
private String username;
private String password;
public User(){}
public User(String username, String password) {
this.username = username;
this.password = password;
}
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;
}
@Override
public String toString() {
return super.toString();
}
}
4.定义我们的Controller
HomeController.java
package com.xingyun.springbootwiththymeleafsample.controller;
import com.xingyun.springbootwiththymeleafsample.model.User;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PostMapping;
@Controller
public class HomeController {
//日志系统
private Logger logger= LoggerFactory.getLogger(HomeController.class);
@GetMapping(value = "/")
public String homePage(Model model){
model.addAttribute("user", new User());
return "index";
}
@PostMapping(value = "/submit.do")
public String jumpAction(@ModelAttribute User user){
logger.info("login user:{}",user.getUsername());
logger.info("login password:{}",user.getPassword());
return "result";
}
}
5.定义html页面
创建index.html 和result.html页面
index.html
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Home Page</title>
</head>
<body>
<!--在Controller 中通过 model.addAttribute("user", new User());
因此可以th:object="${user}" 获取user对象 -->
<h1>Form</h1>
<form action="#" th:action="@{/submit.do}" th:object="${user}" method="post">
<p>User Name: <input type="text" th:field="*{username}" /></p>
<p>Password: <input type="text" th:field="*{password}" /></p>
<p><input type="submit" value="Submit" /> <input type="reset" value="Reset" /></p>
</form>
</body>
</html>
result.html
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>Hello Page</title>
</head>
<body>
<h1>Result</h1>
<p th:text="'username: ' + ${user.username}" />
<p th:text="'password: ' + ${user.password}" />
<a href="/">Submit another message</a>
</body>
</html>
6.访问我们的接口
http://127.0.0.1:8080/
http://127.0.0.1:8080/submit.do
好了，本篇教程到此结束~
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