+ autoconfigure example

spring-boot-example-starter/.gitignore

@@ -0,0 +1,25 @@
+/target/
+!.mvn/wrapper/maven-wrapper.jar
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/build/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/

spring-boot-example-starter/pom.xml

@@ -0,0 +1,52 @@
+<?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>yyl</groupId>
+	<artifactId>spring-boot-example-starter</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<packaging>jar</packaging>
+
+	<name>spring-boot-example-banner</name>
+	<description>Demo project for Spring Boot</description>
+
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>2.0.1.RELEASE</version>
+		<relativePath /> <!-- lookup parent from repository -->
+	</parent>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+		<java.version>1.8</java.version>
+	</properties>
+
+	<dependencies>
+
+		<!-- _spring-boot -->
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter</artifactId>
+		</dependency>
+
+		<!-- _test -->
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<!--<([mvn clean package])> -->
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>

spring-boot-example-starter/spring-boot-example-starter-sample/.gitignore

@@ -0,0 +1,25 @@
+/target/
+!.mvn/wrapper/maven-wrapper.jar
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/build/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/

spring-boot-example-starter/spring-boot-example-starter-sample/pom.xml

@@ -0,0 +1,54 @@
+<?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>yyl</groupId>
+	<artifactId>spring-boot-example-starter-sample</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<packaging>jar</packaging>
+
+	<name>spring-boot-example-banner</name>
+	<description>Demo project for Spring Boot</description>
+
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>2.0.1.RELEASE</version>
+		<relativePath /> <!-- lookup parent from repository -->
+	</parent>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+		<java.version>1.8</java.version>
+	</properties>
+
+	<dependencies>
+
+		<!-- _spring-boot -->
+		<dependency>
+			<groupId>yyl</groupId>
+			<artifactId>spring-boot-example-starter</artifactId>
+			<version>0.0.1-SNAPSHOT</version>
+		</dependency>
+
+
+		<!-- _test -->
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<!--<([mvn clean package])> -->
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>

spring-boot-example-starter/spring-boot-example-starter-sample/src/main/java/yyl/springboot/StarterSampleApplication.java

@@ -0,0 +1,12 @@
+package yyl.springboot;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class StarterSampleApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(StarterSampleApplication.class, args);
+        System.out.println("startup success");
+    }
+}

spring-boot-example-starter/spring-boot-example-starter-sample/src/main/resources/application.properties

@@ -0,0 +1,2 @@
+#spring.banner.charset=UTF-8
+#spring.banner.location=classpath:banner.txt

spring-boot-example-starter/spring-boot-example-starter-sample/src/test/java/yyl/springboot/StarterSampleApplicationTest.java

@@ -0,0 +1,23 @@
+package yyl.springboot;
+
+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.test.context.junit4.SpringRunner;
+
+import yyl.springboot.component.HelloComponent;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class StarterSampleApplicationTest {
+
+    @Autowired
+    private HelloComponent helloComponent;
+
+    @Test
+    public void contextLoads() {
+        System.out.println("autoconfigure" + helloComponent);
+        helloComponent.hello();
+    }
+}

spring-boot-example-starter/src/main/java/yyl/springboot/autoconfigure/BootAutoConfiguration.java

@@ -0,0 +1,20 @@
+package yyl.springboot.autoconfigure;
+
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import yyl.springboot.component.HelloComponent;
+
+/**
+ * 自动配置类
+ */
+@Configuration
+public class BootAutoConfiguration {
+
+    @Bean
+    @ConditionalOnMissingBean
+    public HelloComponent helloComponent() {
+        return new HelloComponent();
+    }
+}

spring-boot-example-starter/src/main/java/yyl/springboot/component/HelloComponent.java

@@ -0,0 +1,7 @@
+package yyl.springboot.component;
+
+public class HelloComponent {
+    public void hello() {
+        System.out.println("hello");
+    }
+}

spring-boot-example-starter/src/main/resources/META-INF/spring.factories

@@ -0,0 +1,2 @@
+org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
+yyl.springboot.autoconfigure.BootAutoConfiguration