• 一、spring boot 1.5.4入门(web+freemarker)


    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)

    @SpringBootApplication
    public 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="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

    msg=Ladies and gentleman,Welcome!

    7.启动运行

    浏览器中访问:http://localhost:8080/common/login

    8.部署

    mvn package 打个包

    java -jar xxx.jar 运行这个包即可  

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  • 原文地址:https://www.cnblogs.com/hdwang/p/7040588.html
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