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Add lesson 18
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‎spring-boot/lesson-18/[海报] Spring Boot 系列之配置.png

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‎spring-boot/lesson-18/[课件] Spring Boot 系列之配置.pptx

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‎spring-boot/lesson-18/spring-boot-lesson-18/.gitignore

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

‎spring-boot/lesson-18/spring-boot-lesson-18/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.segmentfault</groupId>
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<artifactId>spring-boot-lesson-18</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<packaging>jar</packaging>
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<name>spring-boot-lesson-18</name>
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<description>Demo project for Spring Boot</description>
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<parent>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>1.5.6.RELEASE</version>
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<relativePath/> <!-- lookup parent from repository -->
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</parent>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
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<java.version>1.8</java.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-actuator</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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</plugins>
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</build>
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</project>

‎spring-boot/lesson-18/spring-boot-lesson-18/src/main/java/com/segmentfault/springbootlesson18/SpringBootLesson18Application.java

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package com.segmentfault.springbootlesson18;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.context.EnvironmentAware;
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import org.springframework.context.annotation.ImportResource;
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import org.springframework.core.env.*;
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import java.util.Arrays;
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import java.util.HashMap;
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import java.util.Map;
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@SpringBootApplication
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@ImportResource(locations = {
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"META-INF/spring/context.xml",
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"META-INF/spring/context-test.xml",
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"META-INF/spring/context-prod.xml"
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})
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public class SpringBootLesson18Application implements EnvironmentAware {
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public static void main(String[] args) {
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SpringApplication application =
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new SpringApplication(SpringBootLesson18Application.class);
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application.setAdditionalProfiles("prod");
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application.run(args);
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}
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@Override
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public void setEnvironment(Environment environment) {
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// 获取当前Profiles
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System.err.println("当前激活的Profiles : " + Arrays.asList(environment.getActiveProfiles()));
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if (environment instanceof ConfigurableEnvironment) {
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ConfigurableEnvironment env = ConfigurableEnvironment.class.cast(environment);
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MutablePropertySources mutablePropertySources = env.getPropertySources();
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Map<String, Object> source = new HashMap<>();
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source.put("server.port", 1234);
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PropertySource propertySource = new MapPropertySource("java-code", source);
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mutablePropertySources.addFirst(propertySource);
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}
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}
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}

‎spring-boot/lesson-18/spring-boot-lesson-18/src/main/java/com/segmentfault/springbootlesson18/configuration/PersonConfiguration.java

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package com.segmentfault.springbootlesson18.configuration;
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import com.segmentfault.springbootlesson18.domain.Person;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.context.annotation.Profile;
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/**
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* TODO
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*
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* @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
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* @see
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* @since 2017.09.09
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*/
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@Configuration
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public class PersonConfiguration {
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@Bean
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@Profile("prod")
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public Person zhangxueyou() {
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Person person = new Person();
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return person;
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}
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@Bean
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@Profile("test")
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public Person zhangkai() {
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Person person = new Person();
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return person;
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}
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}

‎spring-boot/lesson-18/spring-boot-lesson-18/src/main/java/com/segmentfault/springbootlesson18/context/CustomizedSpringBootApplicationListener.java

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package com.segmentfault.springbootlesson18.context;
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import org.springframework.boot.context.event.ApplicationEnvironmentPreparedEvent;
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import org.springframework.context.ApplicationListener;
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import org.springframework.core.Ordered;
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import org.springframework.core.env.ConfigurableEnvironment;
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import org.springframework.core.env.MapPropertySource;
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import org.springframework.core.env.MutablePropertySources;
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import org.springframework.core.env.PropertySource;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* 自定义 Spring Boot {@link ApplicationListener}
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*
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* @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
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* @see ApplicationEnvironmentPreparedEvent
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* @since 2017.09.09
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*/
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public class CustomizedSpringBootApplicationListener implements
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ApplicationListener<ApplicationEnvironmentPreparedEvent>, Ordered {
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@Override
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public void onApplicationEvent(ApplicationEnvironmentPreparedEvent event) {
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ConfigurableEnvironment env = event.getEnvironment();
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MutablePropertySources mutablePropertySources = env.getPropertySources();
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Map<String, Object> source = new HashMap<>();
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source.put("server.port", 5678);
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source.put("spring.profiles.include", "abc");
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PropertySource propertySource = new MapPropertySource("from-application-listener", source);
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mutablePropertySources.addFirst(propertySource);
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}
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@Override
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public int getOrder() {
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return Ordered.HIGHEST_PRECEDENCE;
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}
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}

‎spring-boot/lesson-18/spring-boot-lesson-18/src/main/java/com/segmentfault/springbootlesson18/controller/BookController.java

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package com.segmentfault.springbootlesson18.controller;
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import com.segmentfault.springbootlesson18.domain.Book;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.context.properties.EnableConfigurationProperties;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RestController;
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/**
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* TODO
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*
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* @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
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* @see
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* @since 2017.09.09
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*/
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@RestController
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@EnableConfigurationProperties(Book.class)
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public class BookController {
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@Autowired
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private Book book;
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@GetMapping("/book")
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public Book book() {
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return book;
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}
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}

‎spring-boot/lesson-18/spring-boot-lesson-18/src/main/java/com/segmentfault/springbootlesson18/controller/PersonController.java

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package com.segmentfault.springbootlesson18.controller;
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import com.segmentfault.springbootlesson18.domain.Person;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Qualifier;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.boot.context.properties.EnableConfigurationProperties;
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import org.springframework.context.EnvironmentAware;
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import org.springframework.core.env.Environment;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RequestParam;
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import org.springframework.web.bind.annotation.RestController;
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import java.util.LinkedHashMap;
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import java.util.Map;
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/**
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* {@link Person} {@link RestController}
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*
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* @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
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* @see
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* @since 2017.09.09
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*/
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@RestController
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public class PersonController implements EnvironmentAware {
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@Autowired
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@Qualifier("person")
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private Person person;
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@Value("${person.id}")
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private Long id;
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@Value("${person.name:小马哥}")
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private String name;
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private Integer age;
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@GetMapping("/person/xiaomage")
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public Person xiaomage() {
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return person;
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}
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@GetMapping("/person/xiaomage/data")
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public Map<String, Object> xiaomageData() {
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Map<String, Object> data = new LinkedHashMap<>();
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data.put("id", id);
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data.put("name", name);
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data.put("age", age);
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return data;
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}
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@Override
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public void setEnvironment(Environment environment) {
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this.age = environment.getProperty("person.age", Integer.class);
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}
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}

‎spring-boot/lesson-18/spring-boot-lesson-18/src/main/java/com/segmentfault/springbootlesson18/domain/Book.java

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package com.segmentfault.springbootlesson18.domain;
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import org.springframework.boot.context.properties.ConfigurationProperties;
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/**
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* TODO
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*
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* @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
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* @see
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* @since 2017.09.09
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*/
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@ConfigurationProperties("book")
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public class Book {
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private String isbn;
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private String name;
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public String getIsbn() {
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return isbn;
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}
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public void setIsbn(String isbn) {
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this.isbn = isbn;
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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}

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