Spring Boot + Thymeleaf 创建web项目

本篇文章将引导你创建一个简单的Spring Boot web程序示例，涉及到的组件有：嵌入的Tomcat + Thymeleaf 模板引擎，可执行的 JAR 文件包。

开发工具：

1.Spring Boot 1.5.3.RELEASE

2.Spring 4.3.8.RELEASE

3.Thymeleaf 2.1.5.RELEASE

4.Tomcat Embed 8.5.14

5.Maven 3

6.Java 8

1.创建项目

eclipse -- File -- New -- Maven Project

2.项目的目录结构如下所示：

手动创建如下的文件夹及文件

3.项目依赖 pom.xml

spring-boot-starter-thymeleaf 这个依赖包将为你提供一切需要的东西来开发一个  Spring + Thymeleaf 程序

pom.xml 文件

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">  <modelVersion>4.0.0</modelVersion>  <groupId>org.thinkingingis</groupId>  <artifactId>spring-boot-web-thymeleaf</artifactId>  <version>0.0.1-SNAPSHOT</version>      <parent>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-parent</artifactId>    <version>1.5.3.RELEASE</version></parent><properties><java.version>1.8</java.version></properties><dependencies>    <!-- 核心依赖 --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-thymeleaf</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-devtools</artifactId><optional>true</optional></dependency><!-- bootstrap 依赖--><dependency><groupId>org.webjars</groupId><artifactId>bootstrap</artifactId><version>3.3.7</version></dependency></dependencies><build><plugins><!-- macOS 使用如下plugin  这是告诉可执行的jar文件位置，具体情况视你jdk的安装位置而定--><plugin><artifactId>maven-compiler-plugin</artifactId><version>3.3</version><configuration><fork>true</fork><executable>/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/bin/java</executable></configuration></plugin><!--windows 系统 使用如下plugin  --><!-- <plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin> --></plugins></build>  </project>

显示项目的依赖：在终端输入mvn dependency: tree

$ mvn dependency:tree[INFO] Scanning for projects...[INFO][INFO] ------------------------------------------------------------------------[INFO] Building spring-boot-web-thymeleaf 0.0.1-SNAPSHOT[INFO] ------------------------------------------------------------------------[INFO][INFO] --- maven-dependency-plugin:2.10:tree (default-cli) @ spring-boot-web-thymeleaf ---[INFO] org.thinkingingis:spring-boot-web-thymeleaf:jar:0.0.1-SNAPSHOT[INFO] +- org.springframework.boot:spring-boot-starter-thymeleaf:jar:1.5.3.RELEASE:compile[INFO] |  +- org.springframework.boot:spring-boot-starter:jar:1.5.3.RELEASE:compile[INFO] |  |  +- org.springframework.boot:spring-boot-starter-logging:jar:1.5.3.RELEASE:compile[INFO] |  |  |  +- ch.qos.logback:logback-classic:jar:1.1.11:compile[INFO] |  |  |  |  \- ch.qos.logback:logback-core:jar:1.1.11:compile[INFO] |  |  |  +- org.slf4j:jcl-over-slf4j:jar:1.7.25:compile[INFO] |  |  |  +- org.slf4j:jul-to-slf4j:jar:1.7.25:compile[INFO] |  |  |  \- org.slf4j:log4j-over-slf4j:jar:1.7.25:compile[INFO] |  |  +- org.springframework:spring-core:jar:4.3.8.RELEASE:compile[INFO] |  |  \- org.yaml:snakeyaml:jar:1.17:runtime[INFO] |  +- org.springframework.boot:spring-boot-starter-web:jar:1.5.3.RELEASE:compile[INFO] |  |  +- org.springframework.boot:spring-boot-starter-tomcat:jar:1.5.3.RELEASE:compile[INFO] |  |  |  +- org.apache.tomcat.embed:tomcat-embed-core:jar:8.5.14:compile[INFO] |  |  |  +- org.apache.tomcat.embed:tomcat-embed-el:jar:8.5.14:compile[INFO] |  |  |  \- org.apache.tomcat.embed:tomcat-embed-websocket:jar:8.5.14:compile[INFO] |  |  +- org.hibernate:hibernate-validator:jar:5.3.5.Final:compile[INFO] |  |  |  +- javax.validation:validation-api:jar:1.1.0.Final:compile[INFO] |  |  |  +- org.jboss.logging:jboss-logging:jar:3.3.1.Final:compile[INFO] |  |  |  \- com.fasterxml:classmate:jar:1.3.3:compile[INFO] |  |  +- com.fasterxml.jackson.core:jackson-databind:jar:2.8.8:compile[INFO] |  |  |  +- com.fasterxml.jackson.core:jackson-annotations:jar:2.8.0:compile[INFO] |  |  |  \- com.fasterxml.jackson.core:jackson-core:jar:2.8.8:compile[INFO] |  |  +- org.springframework:spring-web:jar:4.3.8.RELEASE:compile[INFO] |  |  |  +- org.springframework:spring-aop:jar:4.3.8.RELEASE:compile[INFO] |  |  |  \- org.springframework:spring-beans:jar:4.3.8.RELEASE:compile[INFO] |  |  \- org.springframework:spring-webmvc:jar:4.3.8.RELEASE:compile[INFO] |  |     \- org.springframework:spring-expression:jar:4.3.8.RELEASE:compile[INFO] |  +- org.thymeleaf:thymeleaf-spring4:jar:2.1.5.RELEASE:compile[INFO] |  |  +- org.thymeleaf:thymeleaf:jar:2.1.5.RELEASE:compile[INFO] |  |  |  +- ognl:ognl:jar:3.0.8:compile[INFO] |  |  |  +- org.javassist:javassist:jar:3.21.0-GA:compile[INFO] |  |  |  \- org.unbescape:unbescape:jar:1.1.0.RELEASE:compile[INFO] |  |  \- org.slf4j:slf4j-api:jar:1.7.25:compile[INFO] |  \- nz.net.ultraq.thymeleaf:thymeleaf-layout-dialect:jar:1.4.0:compile[INFO] |     \- org.codehaus.groovy:groovy:jar:2.4.10:compile[INFO] +- org.springframework.boot:spring-boot-devtools:jar:1.5.3.RELEASE:compile[INFO] |  +- org.springframework.boot:spring-boot:jar:1.5.3.RELEASE:compile[INFO] |  |  \- org.springframework:spring-context:jar:4.3.8.RELEASE:compile[INFO] |  \- org.springframework.boot:spring-boot-autoconfigure:jar:1.5.3.RELEASE:compile[INFO] \- org.webjars:bootstrap:jar:3.3.7:compile[INFO]    \- org.webjars:jquery:jar:1.11.1:compile[INFO] ------------------------------------------------------------------------[INFO] BUILD SUCCESS[INFO] ------------------------------------------------------------------------[INFO] Total time: 2.139 s[INFO] Finished at: 2017-06-10T14:11:29+08:00[INFO] Final Memory: 21M/226M[INFO] ------------------------------------------------------------------------

出现 BUILD SUCCESS  表示成功。

4.Spring Boot

4.1添加@SpringBootApplication注解，运行这个类完成spring boot web程序的启动。

package org.thinkingingis;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;@SpringBootApplicationpublic class SpringBootWebApplication {public static void main(String[] args){SpringApplication.run(SpringBootWebApplication.class, args);}}

4.2 添加controller类 WelcomeController.java

package org.thinkingingis;import java.util.Map;import org.springframework.beans.factory.annotation.Value;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;@Controllerpublic class WelcomeController {@Value("${welcome.message:test}")private String message = "Hello ThinkingInGIS";@RequestMapping("/")public String welcome(Map<String, Object> model){model.put("message", this.message);return "welcome";}}

5. 添加thymeleaf 资源

5.1将thymeleaf模板文件存放在 src/main/resources/templates/ 下

welcome.html

<!DOCTYPE HTML><html xmlns:th="http://www.thymeleaf.org"><head><title>Spring Boot + Thymeleaf Hello World 示例</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><link rel="stylesheet" type="text/css" href="webjars/bootstrap/3.3.7/css/bootstrap.min.css" /></head><body><nav class="navbar navbar-inverse"><div class="container"><div class="navbar-header"><a class="navbar-brand" href="#">Spring Boot</a></div><div id="navbar" class="collapse navbar-collapse"><ul class="nav navbar-nav"><li class="active"><a href="#">Home</a></li></ul></div></div></nav><div class="container"><div class="starter-template"><h1 style="color: #4EE2EC">Spring Boot Web Thymeleaf 示例</h1><h2 style="color: #ED594E"><span th:text="'Message: ' + ${message}"></span></h2></div></div><script type="text/javascript" src="webjars/bootstrap/3.3.7/js/bootstrap.min.js"></script></body></html>

5.2 properties文件，放在src/main/resources/ 文件夹下

application.properties

welcome.message: Hello ThinkingInGIS ~ |  \u5FAE\u4FE1\u516C\u4F17\u53F7\uFF1A ThinkingInGIS

6. 启动

6.1进入项目目录下：/Users/gisboy/Documents/workspace/spring-boot-web-thymeleaf

6.2输入  mvn spring-boot:run

$ mvn spring-boot:run .   ____          _            __ _ _ /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/  ___)| |_)| | | | | || (_| |  ) ) ) )  '  |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot ::        (v1.5.3.RELEASE)

出现 BUILD SUCCESS  表示成功

6.3访问 http://localhost:8080

至此，一个简单的spring boot + thymeleaf 程序 就搭建好了。

(如遇到问题，请留言给作者，以便共同探讨gis知识。[e-mail])

在下开通了一个微信公众号: ThinkingInGIS 

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