在Spring Boot中使用Groovy
首先
下面是使用Spring Boot和Groovy时的Gradle配置介绍。
操作步骤
首先，我们将使用SpringInitializr创建的项目来介绍一个劇变的简单方法——将Spring Boot部署到Heroku。
-
- build.gradleに以下を設定
pluginにgroovyを追加する
dependenciesにgroovy-allを追加する
groovyのパッケージを作成
groovyのクラスを作成
起動確認
构建.gradle文件的内容
如果未启用自动导入功能，则在修改build.gradle文件后，必须刷新才能加载添加的软件包。
buildscript {
ext {
springBootVersion = '1.4.2.RELEASE'
}
repositories {
mavenCentral()
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
}
}
apply plugin: 'java'
apply plugin: 'groovy' // ココを追加
apply plugin: 'eclipse'
apply plugin: 'org.springframework.boot'
jar {
baseName = 'demo'
version = '0.0.1-SNAPSHOT'
}
sourceCompatibility = 1.8
targetCompatibility = 1.8
repositories {
mavenCentral()
}
dependencies {
compile('org.codehaus.groovy:groovy-all') // ココを追加
compile('org.springframework.boot:spring-boot-starter-actuator')
compile('org.springframework.boot:spring-boot-starter-web')
runtime('org.postgresql:postgresql')
testCompile('org.springframework.boot:spring-boot-starter-test')
}
创建groovy包
在Projectペイン中，用鼠标右键点击main文件夹，然后选择「新建」-> 「目录」。
在「新目录」对话框中输入groovy。
右击已创建的groovy文件夹，选择”标记目录为”菜单中的”源代码根目录”。
右键单击groovy文件夹，选择「新建」->「包」。
在「新包装」对话框中输入com.example.controller。
点击已创建的包，选择“新建”->“Groovy类”。
在「New Groovy Class」的对话框中添加一个合适的类名。
編輯以下所述的Groovy類（不改變類名）。
package com.example.controller
import org.springframework.stereotype.Component
import org.springframework.web.bind.annotation.GetMapping
import org.springframework.web.bind.annotation.RequestMapping
import org.springframework.web.bind.annotation.ResponseBody
/**
*
*/
@Component
@RequestMapping("/demo")
class DemoController {
@GetMapping("hello")
@ResponseBody
def hello() {
return "Hello"
}
}
请右键单击Java中的SpringBoot的main类，然后选择“运行DemoApplication”。
启动日志会显示在控制台中。
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.4.2.RELEASE)
2016-11-19 23:43:43.459 INFO 29071 --- [ main] com.example.DemoApplication : Starting DemoApplication on MBP-15UAC-184.local with PID 29071 (/Users/tgoto/Develop/git/demo/build/classes/main started by tgoto in /Users/tgoto/Develop/git/demo)
2016-11-19 23:43:43.463 INFO 29071 --- [ main] com.example.DemoApplication : No active profile set, falling back to default profiles: default
2016-11-19 23:43:43.900 INFO 29071 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@7722c3c3: startup date [Sat Nov 19 23:43:43 JST 2016]; root of context hierarchy
2016-11-19 23:43:45.222 INFO 29071 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2016-11-19 23:43:45.235 INFO 29071 --- [ main] o.apache.catalina.core.StandardService : Starting service Tomcat
2016-11-19 23:43:45.236 INFO 29071 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.6
2016-11-19 23:43:45.339 INFO 29071 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2016-11-19 23:43:45.339 INFO 29071 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1441 ms
2016-11-19 23:43:45.565 INFO 29071 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2016-11-19 23:43:45.570 INFO 29071 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'metricsFilter' to: [/*]
2016-11-19 23:43:45.570 INFO 29071 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2016-11-19 23:43:45.570 INFO 29071 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2016-11-19 23:43:45.570 INFO 29071 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2016-11-19 23:43:45.570 INFO 29071 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2016-11-19 23:43:45.570 INFO 29071 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'webRequestLoggingFilter' to: [/*]
2016-11-19 23:43:45.570 INFO 29071 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'applicationContextIdFilter' to: [/*]
2016-11-19 23:43:45.891 INFO 29071 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@7722c3c3: startup date [Sat Nov 19 23:43:43 JST 2016]; root of context hierarchy
2016-11-19 23:43:45.956 INFO 29071 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/demo/hello],methods=[GET]}" onto public java.lang.Object com.example.controller.DemoController.hello()
2016-11-19 23:43:45.958 INFO 29071 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
・・・中略・・・
org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2016-11-19 23:43:46.827 INFO 29071 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2016-11-19 23:43:46.835 INFO 29071 --- [ main] o.s.c.support.DefaultLifecycleProcessor : Starting beans in phase 0
2016-11-19 23:43:46.940 INFO 29071 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
2016-11-19 23:43:46.944 INFO 29071 --- [ main] com.example.DemoApplication : Started DemoApplication in 4.224 seconds (JVM running for 4.732)
当显示出类似以下的/demo/hello的请求映射时，表示正常。
2016-11-19 23:43:45.956 INFO 29071 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/demo/hello],methods=[GET]}" onto public java.lang.Object com.example.controller.DemoController.hello()
用curl进行确认
~/D/g/demo ❯❯❯ curl -X GET localhost:8080/demo/hello [master]
Hello% ~/D/g/demo ❯❯❯
完成了 le).
