Пример Spring Boot Hello World

Весенний ботинок Hello World пример - усы

Пример веб-приложенияSpring Boot с использованиемembedded Tomcat + Mustache template engine и пакет в виде исполняемого файлаJAR.

Используемые технологии:

Spring Boot 1.5.2.RELEASE
Весна 4.3.7. РЕЛИЗ
jmustache 1.13
Тимелист 2.1.5. ВЫПУСК
Tomcat Embed 8.5.11
Maven 3
Java 8

Note
Spring Boot используетjmustache для интеграцииMustache в качестве механизма шаблонов.

1. Каталог проектов

2. Зависимости проекта

Объявляетspring-boot-starter-mustache, он получит все, что вам нужно для разработки веб-приложенияSpring + Mustache.

pom.xml



    4.0.0

    spring-boot-web-mustache
    jar
    Spring Boot Web Mustache Example
    Spring Boot Web Mustache Example
    https://www.example.com
    1.0

    
        org.springframework.boot
        spring-boot-starter-parent
        1.5.2.RELEASE
    

    
        1.8
    

    

        
            org.springframework.boot
            spring-boot-starter-mustache
        

        
            org.springframework.boot
            spring-boot-starter-test
            test
        

        
        
            org.springframework.boot
            spring-boot-devtools
            true
        

        
        
            org.webjars
            bootstrap
            3.3.7
        

    

    
        
            
            
                org.springframework.boot
                spring-boot-maven-plugin

Показать зависимости проекта:

$ mvn dependency:tree

[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Spring Boot Web Mustache Example 1.0
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-dependency-plugin:2.10:tree (default-cli) @ spring-boot-web-mustache ---
                               [INFO] org.springframework.boot:spring-boot-web-mustache:jar:1.0
[INFO] +- org.springframework.boot:spring-boot-starter-mustache:jar:1.5.2.RELEASE:compile
[INFO] |  +- org.springframework.boot:spring-boot-starter:jar:1.5.2.RELEASE:compile
[INFO] |  |  +- org.springframework.boot:spring-boot-starter-logging:jar:1.5.2.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:1.7.24:compile
[INFO] |  |  |  +- org.slf4j:jul-to-slf4j:jar:1.7.24:compile
[INFO] |  |  |  \- org.slf4j:log4j-over-slf4j:jar:1.7.24:compile
[INFO] |  |  \- org.yaml:snakeyaml:jar:1.17:runtime
[INFO] |  +- org.springframework.boot:spring-boot-starter-web:jar:1.5.2.RELEASE:compile
[INFO] |  |  +- org.springframework.boot:spring-boot-starter-tomcat:jar:1.5.2.RELEASE:compile
[INFO] |  |  |  +- org.apache.tomcat.embed:tomcat-embed-core:jar:8.5.11:compile
[INFO] |  |  |  +- org.apache.tomcat.embed:tomcat-embed-el:jar:8.5.11:compile
[INFO] |  |  |  \- org.apache.tomcat.embed:tomcat-embed-websocket:jar:8.5.11:compile
[INFO] |  |  +- org.hibernate:hibernate-validator:jar:5.3.4.Final:compile
[INFO] |  |  |  +- javax.validation:validation-api:jar:1.1.0.Final:compile
[INFO] |  |  |  +- org.jboss.logging:jboss-logging:jar:3.3.0.Final:compile
[INFO] |  |  |  \- com.fasterxml:classmate:jar:1.3.3:compile
[INFO] |  |  +- com.fasterxml.jackson.core:jackson-databind:jar:2.8.7:compile
[INFO] |  |  |  +- com.fasterxml.jackson.core:jackson-annotations:jar:2.8.0:compile
[INFO] |  |  |  \- com.fasterxml.jackson.core:jackson-core:jar:2.8.7:compile
[INFO] |  |  +- org.springframework:spring-web:jar:4.3.7.RELEASE:compile
[INFO] |  |  |  +- org.springframework:spring-aop:jar:4.3.7.RELEASE:compile
[INFO] |  |  |  \- org.springframework:spring-beans:jar:4.3.7.RELEASE:compile
[INFO] |  |  \- org.springframework:spring-webmvc:jar:4.3.7.RELEASE:compile
[INFO] |  |     \- org.springframework:spring-expression:jar:4.3.7.RELEASE:compile
[INFO] |  \- com.samskivert:jmustache:jar:1.13:compile
[INFO] +- org.springframework.boot:spring-boot-starter-test:jar:1.5.2.RELEASE:test
[INFO] |  +- org.springframework.boot:spring-boot-test:jar:1.5.2.RELEASE:test
[INFO] |  +- org.springframework.boot:spring-boot-test-autoconfigure:jar:1.5.2.RELEASE:test
[INFO] |  +- com.jayway.jsonpath:json-path:jar:2.2.0:test
[INFO] |  |  +- net.minidev:json-smart:jar:2.2.1:test
[INFO] |  |  |  \- net.minidev:accessors-smart:jar:1.1:test
[INFO] |  |  |     \- org.ow2.asm:asm:jar:5.0.3:test
[INFO] |  |  \- org.slf4j:slf4j-api:jar:1.7.24:compile
[INFO] |  +- junit:junit:jar:4.12:test
[INFO] |  +- org.assertj:assertj-core:jar:2.6.0:test
[INFO] |  +- org.mockito:mockito-core:jar:1.10.19:test
[INFO] |  |  \- org.objenesis:objenesis:jar:2.1:test
[INFO] |  +- org.hamcrest:hamcrest-core:jar:1.3:test
[INFO] |  +- org.hamcrest:hamcrest-library:jar:1.3:test
[INFO] |  +- org.skyscreamer:jsonassert:jar:1.4.0:test
[INFO] |  |  \- com.vaadin.external.google:android-json:jar:0.0.20131108.vaadin1:test
[INFO] |  +- org.springframework:spring-core:jar:4.3.7.RELEASE:compile
[INFO] |  \- org.springframework:spring-test:jar:4.3.7.RELEASE:test
[INFO] +- org.springframework.boot:spring-boot-devtools:jar:1.5.2.RELEASE:compile
[INFO] |  +- org.springframework.boot:spring-boot:jar:1.5.2.RELEASE:compile
[INFO] |  |  \- org.springframework:spring-context:jar:4.3.7.RELEASE:compile
[INFO] |  \- org.springframework.boot:spring-boot-autoconfigure:jar:1.5.2.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: 1.796 s
[INFO] Finished at: 2017-04-19T11:46:09+08:00
[INFO] Final Memory: 22M/437M
[INFO] ------------------------------------------------------------------------

3. Весенний ботинок

3.1 Create a @SpringBootApplication class. Запустите этот класс, чтобы запустить веб-приложение Spring Boot.

SpringBootWebApplication.java

package com.example;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class SpringBootWebApplication {

    public static void main(String[] args) throws Exception {
        SpringApplication.run(SpringBootWebApplication.class, args);
    }

}

3.2 A simple controller class.

WelcomeController.java

package com.example;

import java.util.Map;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class WelcomeController {

    // inject via application.properties
    @Value("${app.welcome.message}")
    private String MESSAGE = "";

    @Value("${app.welcome.title}")
    private String TITLE = "";

    @RequestMapping("/")
    public String welcome(Map model) {
        model.put("title", TITLE);
        model.put("message", MESSAGE);
        return "welcome";
    }

    // test 5xx errors
    @RequestMapping("/5xx")
    public String ServiceUnavailable() {
        throw new RuntimeException("ABC");
    }

}

4. Усы + Ресурсы + Статические файлы

4.1 For Mustache template files, put in src/main/resources/templates/

src/main/resources/templates/layout/header.html




{{title}}

src/main/resources/templates/layout/footer.html

src/main/resources/templates/welcome.html

{{>layout/header}}


    
        
            
                Spring Boot
            
        
    

    

        
            Spring Boot Web Mustache Example
            
                {{message}}
            
        

    
    

    


{{>layout/footer}}

4.2 For static files like CSS or Javascript, put in /src/main/resources/static/

/src/main/resources/static/css/main.css

h1{
    color:#0000FF;
}

h2{
    color:#FF0000;
}

4.3 For error templates.

Note
Прочтите этотSpring Boot – Error Handling, чтобы понять, как работает страница сопоставления ошибок по умолчанию.

src/main/resources/templates/error.html






    Something went wrong: {{status}} {{error}}

src/main/resources/templates/error/5xx.html






    I'm a 5xx

4.4 For properties files, put in /src/main/resources/

/src/main/resources/application.properties

app.welcome.message: Hello Mkyong
app.welcome.title: Spring Boot Mustache Hello World Example

Note
Прочтите этотSpring Boot Serving static content, чтобы понять отображение ресурсов.

5. Модульный тест

5.1 Unit test example to test above Spring Boot web application.

MustacheApplicationTests

package com.example;

import static org.assertj.core.api.Assertions.assertThat;

import java.util.Arrays;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
import org.springframework.boot.test.web.client.TestRestTemplate;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.context.junit4.SpringRunner;

@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
@DirtiesContext
public class MustacheApplicationTests {

    @Autowired
    private TestRestTemplate restTemplate;

    @Test
    public void testMainPage() throws Exception {

        ResponseEntity entity = this.restTemplate.getForEntity("/", String.class);
        assertThat(entity.getStatusCode()).isEqualTo(HttpStatus.OK);
        assertThat(entity.getBody()).contains("Hello Mkyong");

    }

    @Test
    public void test404Page() throws Exception {

        HttpHeaders headers = new HttpHeaders();
        headers.setAccept(Arrays.asList(MediaType.TEXT_HTML));
        HttpEntity requestEntity = new HttpEntity(headers);
        ResponseEntity responseEntity = this.restTemplate.exchange("/uri-not-exist", HttpMethod.GET,
                requestEntity, String.class);
        assertThat(responseEntity.getStatusCode()).isEqualTo(HttpStatus.NOT_FOUND);
        assertThat(responseEntity.getBody()).contains("Something went wrong: 404 Not Found");

    }

    @Test
    public void test5xxPage() throws Exception {

        HttpHeaders headers = new HttpHeaders();
        headers.setAccept(Arrays.asList(MediaType.TEXT_HTML));
        HttpEntity requestEntity = new HttpEntity(headers);
        ResponseEntity responseEntity = this.restTemplate.exchange("/5xx", HttpMethod.GET, requestEntity,
                String.class);
        assertThat(responseEntity.getStatusCode()).isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR);
        assertThat(responseEntity.getBody()).contains("I'm a 5xx");

    }

}

6. Demo

Примечание
. В среде IDE запустите аннотированный класс@SpringBootApplication, и будет запущено все приложение Spring Boot.

6.1 Start the Spring Boot web app.

Терминал

project$ mvn spring-boot:run

//...
  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v1.5.2.RELEASE)

2017-04-19 12:17:38.014  INFO 6232 --- [  restartedMain] com.example.SpringBootWebApplication      : Starting SpringBootWebApplication on MKYONG-WIN10 with PID 6232 (C:\spring-boot\spring-boot-examples\spring-boot-web-mustache\target\classes started by example in C:\spring-boot\spring-boot-examples\spring-boot-web-mustache)
2017-04-19 12:17:38.015  INFO 6232 --- [  restartedMain] com.example.SpringBootWebApplication      : No active profile set, falling back to default profiles: default
2017-04-19 12:17:38.074  INFO 6232 --- [  restartedMain] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@af1619: startup date [Wed Apr 19 12:17:38 SGT 2017]; root of context hierarchy
2017-04-19 12:17:39.352  INFO 6232 --- [  restartedMain] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2017-04-19 12:17:39.370  INFO 6232 --- [  restartedMain] o.apache.catalina.core.StandardService   : Starting service Tomcat
2017-04-19 12:17:39.372  INFO 6232 --- [  restartedMain] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.5.11
2017-04-19 12:17:39.481  INFO 6232 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2017-04-19 12:17:39.481  INFO 6232 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 1410 ms
2017-04-19 12:17:39.649  INFO 6232 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean  : Mapping servlet: 'dispatcherServlet' to [/]
2017-04-19 12:17:39.658  INFO 6232 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
2017-04-19 12:17:39.659  INFO 6232 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2017-04-19 12:17:39.659  INFO 6232 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2017-04-19 12:17:39.660  INFO 6232 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]
2017-04-19 12:17:39.938  INFO 6232 --- [  restartedMain] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@af1619: startup date [Wed Apr 19 12:17:38 SGT 2017]; root of context hierarchy
2017-04-19 12:17:39.997  INFO 6232 --- [  restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/]}" onto public java.lang.String com.example.WelcomeController.welcome(java.util.Map)
2017-04-19 12:17:39.997  INFO 6232 --- [  restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/5xx]}" onto public java.lang.String com.example.WelcomeController.ServiceUnavailable()
2017-04-19 12:17:40.006  INFO 6232 --- [  restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2017-04-19 12:17:40.006  INFO 6232 --- [  restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2017-04-19 12:17:40.041  INFO 6232 --- [  restartedMain] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-04-19 12:17:40.041  INFO 6232 --- [  restartedMain] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-04-19 12:17:40.090  INFO 6232 --- [  restartedMain] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-04-19 12:17:40.332  INFO 6232 --- [  restartedMain] o.s.b.d.a.OptionalLiveReloadServer       : LiveReload server is running on port 35729
2017-04-19 12:17:40.373  INFO 6232 --- [  restartedMain] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans for JMX exposure on startup
2017-04-19 12:17:40.427  INFO 6232 --- [  restartedMain] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
2017-04-19 12:17:40.435  INFO 6232 --- [  restartedMain] com.example.SpringBootWebApplication      : Started SpringBootWebApplication in 2.737 seconds (JVM running for 3.124)

6.2 Access http://localhost:8080

6.2 Access http://localhost:8080/uri-not-exist

6.2 Access http://localhost:8080/5xx

6. Создайте исполняемый JAR

6.1 Package the project to create an executable JAR file.

project$ mvn clean package

6.2 Run It, access http://localhost:8080 again.

project$ java -jar target/spring-boot-web-mustache-1.0.jar

Скачать исходный код

Скачать -spring-boot-web-mustache.zip (11 КБ)

TOC

Пример Spring Boot Hello World - усы

Весенний ботинок Hello World пример - усы

1. Каталог проектов

2. Зависимости проекта

3. Весенний ботинок

4. Усы + Ресурсы + Статические файлы

Spring Boot Web Mustache Example

{{message}}

5. Модульный тест

6. Demo

6. Создайте исполняемый JAR

Скачать исходный код

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