1、gradle初始化
执行如下命令
gradle init执行后会生成如下文件
drwxr-xr-x 8 durban staff 272 3 25 12:37 .
drwxr-xr-x 7 durban staff 238 3 25 12:36 ..
drwxr-xr-x 4 durban staff 136 3 25 12:37 .gradle
-rw-r--r-- 1 durban staff 201 3 25 12:37 build.gradle
drwxr-xr-x 3 durban staff 102 3 25 12:37 gradle
-rwxr-xr-x 1 durban staff 5296 3 25 12:37 gradlew
-rw-r--r-- 1 durban staff 2260 3 25 12:37 gradlew.bat
-rw-r--r-- 1 durban staff 351 3 25 12:37 settings.gradle2、编辑build.gradle
在build.gradle文件下加入如下内容
plugins {
id 'org.springframework.boot' version '2.0.0.RELEASE'
id "io.spring.dependency-management" version "1.0.4.RELEASE"
id 'java'
}
jar {
baseName = 'myproject'
version = '0.0.1-SNAPSHOT'
}
repositories {
jcenter()
}
dependencies {
compile("org.springframework.boot:spring-boot-starter-web")
testCompile("org.springframework.boot:spring-boot-starter-test")
}3、创建Spring Boot 实例代码
在跟目录下创建src/main/java结构的目录，并创建文件src/main/java/Example.java
添加如下代码
import org.springframework.boot.*;
import org.springframework.boot.autoconfigure.*;
import org.springframework.web.bind.annotation.*;
@RestController
@EnableAutoConfiguration
public class Example {
@RequestMapping("/")
String home() {
return "Hello World!";
}
public static void main(String[] args) throws Exception {
SpringApplication.run(Example.class, args);
}
}4、启动实例项目
执行如下命令
gradle bootRun会得到如下内容
Starting a Gradle Daemon, 1 stopped Daemon could not be reused, use --status for details
> Task :bootRun
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.0.0.RELEASE)
2018-03-25 12:58:25.611 INFO 62057 --- [ main] Example : Starting Example on durbanzhangdeMacBook-Pro with PID 62057 (/Users/durban/java/test/build/classes/java/main started by durban in /Users/durban/java/test)
2018-03-25 12:58:25.615 INFO 62057 --- [ main] Example : No active profile set, falling back to default profiles: default
2018-03-25 12:58:25.694 INFO 62057 --- [ main] ConfigServletWebServerApplicationContext : Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@6279cee3: startup date [Sun Mar 25 12:58:25 CST 2018]; root of context hierarchy
2018-03-25 12:58:27.350 INFO 62057 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2018-03-25 12:58:27.400 INFO 62057 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2018-03-25 12:58:27.400 INFO 62057 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.28
2018-03-25 12:58:27.417 INFO 62057 --- [ost-startStop-1] o.a.catalina.core.AprLifecycleListener : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [/Users/durban/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.]
2018-03-25 12:58:27.561 INFO 62057 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2018-03-25 12:58:27.561 INFO 62057 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1870 ms
2018-03-25 12:58:27.758 INFO 62057 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Servlet dispatcherServlet mapped to [/]
2018-03-25 12:58:27.764 INFO 62057 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2018-03-25 12:58:27.765 INFO 62057 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2018-03-25 12:58:27.765 INFO 62057 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2018-03-25 12:58:27.765 INFO 62057 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2018-03-25 12:58:28.259 INFO 62057 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@6279cee3: startup date [Sun Mar 25 12:58:25 CST 2018]; root of context hierarchy
2018-03-25 12:58:28.377 INFO 62057 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/]}" onto java.lang.String Example.home()
2018-03-25 12:58:28.389 INFO 62057 --- [ 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.servlet.error.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2018-03-25 12:58:28.390 INFO 62057 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2018-03-25 12:58:28.432 INFO 62057 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-03-25 12:58:28.432 INFO 62057 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-03-25 12:58:28.480 INFO 62057 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-03-25 12:58:28.701 INFO 62057 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2018-03-25 12:58:28.770 INFO 62057 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2018-03-25 12:58:28.776 INFO 62057 --- [ main] Example : Started Example in 3.815 seconds (JVM running for 4.321)
<=========----> 75% EXECUTING [19s]
> :bootRun打开浏览器访问localhost:8080
会得到输出内容 “Hello World!”
5、创建可执行的jar文件
修改build.gradle,在jar中添加enabled=true,最后build.gradle结果如下
plugins {
id 'org.springframework.boot' version '2.0.0.RELEASE'
id "io.spring.dependency-management" version "1.0.4.RELEASE"
id 'java'
}
jar {
baseName = 'myproject'
version = '0.0.1-SNAPSHOT'
enabled = true
}
repositories {
jcenter()
}
dependencies {
compile("org.springframework.boot:spring-boot-starter-web")
testCompile("org.springframework.boot:spring-boot-starter-test")
}修改完后执行如下命令
spring bootRun会在build目录下下libs目录下生成文件*.jar
通过命令运行jar文件
java -jar xxx.jar会得到4步骤中的输出。
