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springboot-properties 配置文件
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‎springboot-properties/.gitignore

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/target/
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/.mvn/
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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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.sts4-cache
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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/

‎springboot-properties/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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<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>2.1.1.RELEASE</version>
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<relativePath/> <!-- lookup parent from repository -->
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</parent>
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<groupId>net.codingme</groupId>
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<artifactId>springboot-properties</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<packaging>jar</packaging>
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<name>springboot-properties</name>
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<description>springboot-properties</description>
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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-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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<!-- Lombok 工具 -->
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<dependency>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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<optional>true</optional>
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</dependency>
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<!-- 导入配置文件处理器，在配置springboot相关文件时候会有提示 -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-configuration-processor</artifactId>
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<optional>true</optional>
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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>

‎springboot-properties/src/main/java/net/codingme/boot/BootApplication.java

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package net.codingme.boot;
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import org.springframework.boot.CommandLineRunner;
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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.ApplicationContext;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.ImportResource;
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import org.springframework.context.annotation.PropertySource;
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import java.util.Arrays;
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/**
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* <p>
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* 配置类，相当于传统Spring 开发中的 xml-> bean的配置
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*
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* @Author niujinpeng
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* @Date 2018/12/7 0:04
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*/
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@SpringBootApplication
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public class BootApplication {
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public static void main(String[] args) {
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SpringApplication.run(BootApplication.class, args);
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}
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@Bean
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public CommandLineRunner commandLineRunner(ApplicationContext ctx) {
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return args -> {
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// 开始检查spring boot 提供的 beans
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System.out.println("Let's inspect the beans provided by Spring Boot:");
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String[] beanNames = ctx.getBeanDefinitionNames();
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Arrays.sort(beanNames);
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for (String beanName : beanNames) {
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//System.out.println(beanName);
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}
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};
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}
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}

‎springboot-properties/src/main/java/net/codingme/boot/controller/HelloController.java

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package net.codingme.boot.controller;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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/**
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* <p>
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*
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*
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* @Author niujinpeng
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* @Date 2018/12/4 14:41
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*/
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@Slf4j
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@RestController
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public class HelloController {
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@Value("${bootapp.description}")
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private String description;
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@RequestMapping("/")
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public String index() {
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log.info(description);
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return "Greetings from Spring Boot!";
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}
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}

‎springboot-properties/src/main/java/net/codingme/boot/domain/proper/Dog.java

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package net.codingme.boot.domain.proper;
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import lombok.Data;
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import lombok.Getter;
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import lombok.Setter;
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import org.springframework.boot.context.properties.ConfigurationProperties;
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import org.springframework.stereotype.Component;
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/**
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* <p>
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*
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* @Data lombok的注解，会为这个类所有属性添加 getting 和 setting 方法，此外还提供了equals、canEqual、hashCode、toString 方法
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* @Component 加到spring 容器中
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* @ConfigurationProperties 告诉这个类的属性都是配置文件里的属性，prefix指定读取配置文件的前缀
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* @Author niujinpeng
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* @Date 2018/12/6 22:56
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*/
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@Data
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@Component
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@ConfigurationProperties(prefix = "person.dog")
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public class Dog {
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private String name;
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private Integer age;
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}

‎springboot-properties/src/main/java/net/codingme/boot/domain/proper/Person.java

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package net.codingme.boot.domain.proper;
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import lombok.Data;
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import org.springframework.boot.context.properties.ConfigurationProperties;
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import org.springframework.stereotype.Component;
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import org.springframework.validation.annotation.Validated;
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import javax.validation.constraints.Email;
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import java.util.Date;
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import java.util.List;
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import java.util.Map;
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/**
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* <p>
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*
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* @Data lombok的注解，会为这个类所有属性添加 getting 和 setting 方法，此外还提供了equals、canEqual、hashCode、toString 方法
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* @Component 加到spring 容器中
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* @ConfigurationProperties 告诉这个类的属性都是配置文件里的属性，prefix指定读取配置文件的前缀
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* @Author niujinpeng
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* @Date 2018/12/6 22:54
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*/
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@Data
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@Component
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@ConfigurationProperties(prefix = "person")
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@Validated
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public class Person {
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private String lastName;
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private Integer age;
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private Date birth;
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private Map<String, String> maps;
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private List<String> lists;
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private Dog dog;
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/**
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* 支持数据校验
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*/
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@Email
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private String email;
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}
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‎springboot-properties/src/main/java/net/codingme/boot/domain/proper/PersonSource.java

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package net.codingme.boot.domain.proper;
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import lombok.Data;
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import org.springframework.boot.context.properties.ConfigurationProperties;
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import org.springframework.context.annotation.PropertySource;
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import org.springframework.stereotype.Component;
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import org.springframework.validation.annotation.Validated;
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import javax.validation.constraints.Email;
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import java.util.Date;
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import java.util.List;
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import java.util.Map;
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/**
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* <p>
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* 使用@PropertySource加载自定义的配置文件，需要注意的是，由于@PropertySource指定的文件会优先加载，
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* 所以如果在 applocation.properties中存在相同的属性配置，会覆盖前者的值。
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*
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* @@PropertySource 加载自定义的配置文件
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* @Data lombok的注解，会为这个类所有属性添加 getting 和 setting 方法，此外还提供了equals、canEqual、hashCode、toString 方法
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* @Component 加到spring 容器中
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* @ConfigurationProperties 告诉这个类的属性都是配置文件里的属性，prefix指定读取配置文件的前缀
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* @Author niujinpeng
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* @Date 2018/12/6 22:54
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*/
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@Data
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@Component
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@Validated
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@PropertySource(value = "classpath:domain-person.properties")
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@ConfigurationProperties(value = "person")
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public class PersonSource {
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private String lastName;
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private Integer age;
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private Date birth;
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private Map<String, String> maps;
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private List<String> lists;
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private Dog dog;
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/**
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* 支持数据校验
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*/
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@Email
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private String email;
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}

‎springboot-properties/src/main/java/net/codingme/boot/domain/proper/PersonValue.java

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package net.codingme.boot.domain.proper;
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import lombok.Data;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.stereotype.Component;
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import org.springframework.validation.annotation.Validated;
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import javax.validation.constraints.Email;
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import java.util.Date;
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import java.util.List;
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import java.util.Map;
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/**
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* <p>
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*
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* @Data lombok的注解，会为这个类所有属性添加 getting 和 setting 方法，此外还提供了equals、canEqual、hashCode、toString 方法
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* @Component 加到spring 容器中
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* @Author niujinpeng
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* @Date 2018/12/6 23:21
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*/
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@Data
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@Component
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@Validated
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public class PersonValue {
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/**
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* 直接从配置文件读取一个值
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*/
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@Value("${person.last-name}")
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private String lastName;
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/**
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* 支持SpEL表达式
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*/
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@Value("#{11*4/2}")
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private Integer age;
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@Value("${person.birth}")
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private Date birth;
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/**
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* 不支持复杂类型
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*/
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private Map<String, String> maps;
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private List<String> lists;
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private Dog dog;
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/**
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* 不支持数据校验
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*/
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@Email
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@Value("xxx@@@@")
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private String email;
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}

‎springboot-properties/src/main/resources/application-prod.properties

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server.port=8081

‎springboot-properties/src/main/resources/application.properties

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################################################################
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# \u670D\u52A1\u542F\u52A8\u7AEF\u53E3\u53F7
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server.port=8080
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spring.profiles.active=prod
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################################################################
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# \u914D\u7F6E\u5C5E\u6027\u503C\uFF08\u4F7F\u7528IDE\u8FDB\u884C\u914D\u7F6E\u9700\u8981\u5904\u7406\u7F16\u7801\u95EE\u9898\uFF0C\u4E0D\u7136\u4E2D\u6587\u4F1A\u53D1\u9001\u4E71\u7801\u73B0\u8C61\uFF09
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person.last-name=\u5F20\u4E09
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person.age=18
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person.birth=2018/12/06
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person.email=[email protected]
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person.maps.key1=c
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person.maps.key2=java
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person.maps.key3=golang
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person.lists=a,b,c,d
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person.dog.name=\u65FA\u8D22
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person.dog.age=1
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################################################################
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# \u751F\u6210\u968F\u673A\u503C
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bootapp.secret=$ {random.value}
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bootapp.number=$ {random.int}
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bootapp.bignumber=$ {random.long}
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bootapp.uuid=$ {random.uuid}
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bootapp.number.less.than.ten=$ {random.int\uFF0810\uFF09}
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bootapp.number.in.range=$ {random.int [1024,65536]}
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# \u5C5E\u6027\u7684\u5360\u4F4D\u7B26
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bootapp.name=SpringBoot
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bootapp.description=${bootapp.name}\u662F\u4E00\u4E2Aspring\u5E94\u7528\u7A0B\u5E8F

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