Spring Boot入门(web+freemarker)

2019-11-26 12:00:49

字体：大中小

来源：转载

供稿：网友

1.配置maven文件pom.xml

<?xml version="1.0" encoding="UTF-8"?><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>com.hdwang</groupId>  <artifactId>spring-boot-test</artifactId>  <version>1.0-SNAPSHOT</version>  <name>spring-boot-test</name>  <description>project for test Spring Boot</description>  <properties>    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>    <java.version>1.8</java.version>  </properties>  <!-- Inherit defaults from Spring Boot -->  <parent>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-parent</artifactId>    <version>1.5.4.RELEASE</version>    <relativePath/>  </parent>  <dependencies>    <!-- Add typical dependencies for a web application -->    <dependency>      <groupId>org.springframework.boot</groupId>      <artifactId>spring-boot-starter-web</artifactId>    </dependency>    <dependency>      <groupId>org.springframework.boot</groupId>      <artifactId>spring-boot-starter-freemarker</artifactId>    </dependency>    <!-- auto redeploy -->    <dependency>      <groupId>org.springframework.boot</groupId>      <artifactId>spring-boot-devtools</artifactId>      <optional>true</optional>    </dependency>  <!-- Package as an executable jar -->  <build>    <plugins>      <plugin>        <groupId>org.springframework.boot</groupId>        <artifactId>spring-boot-maven-plugin</artifactId>      </plugin>    </plugins>  </build></project>

2.文件结构（static/templates/application.properties/logback.xml的名称都是约定好了的，只可以使用某几个名称，具体参考spring boot官方文档，下面的名称是其中一种配置方式）

3.建立启动类（放在顶层，子层（下级文件夹）的类方可被扫描注入）

@SpringBootApplicationpublic class Application {  /**   * main function   * @param args params   */  public static void main(String[] args){    SpringApplication.run(Application.class,args);  }}

4.建立controller（在Application类的下级目录中）

@Controller@RequestMapping("/common")public class Common {  @Value("${msg:Welcome!}")  private String msg;  /**   * get a page   * @return a page with name called return value   */  @RequestMapping("login")  public String getLoginPage(ModelMap map){    map.put("welcomeMsg",this.msg);    return "login";  }}

5.建立网页模板login.ftl(freemarker必须使用ftl后缀，被这个坑了好久！js/css啥的都放在相应文件夹下，注意访问路径中不带/static,也被这个坑了好久！)

<!DOCTYPE html><html><head>  <meta charset="UTF-8" />  <title>login</title>  <link href="/css/home.css" rel="external nofollow" rel="stylesheet" type="text/css" />  <script type="text/javascript" src="/js/jquery-2.0.3.min.js"></script>  <script type="text/javascript" src="/js/home.js"></script></head><body><h1>login page</h1><h2>${welcomeMsg}</h2><form>  <div>   <label>用户名:<input type="text" id="username"/></label>  </div>  <div>   <label>密码:<input type="password"/></label>  </div>  <div>    <input type="submit" value="提交"/>    <input type="reset" value="重置" />  </div></form></body></html>

6.应用配置文件编写

新建application.properties文件并添加以下内容